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52918 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
f1d26d72f0 |
IOMMU Updates for Linux v7.1:
Including:
- Core:
- Support for RISC-V IO-page-table format in generic iommupt
code
- ARM-SMMU Updates:
- Introduction of an "invalidation array" for SMMUv3, which enables
future scalability work and optimisations for devices with a large
number of SMMUv3 instances.
- Update the conditions under which the SMMUv3 driver works around
hardware errata for invalidation on MMU-700 implementations.
- Fix broken command filtering for the host view of NVIDIA's "cmdqv"
SMMUv3 extension.
- MMU-500 device-tree binding additions for Qualcomm Eliza & Hawi SoCs.
- Intel VT-d:
- Support for dirty tracking on domains attached to PASID
- Removal of unnecessary read*()/write*() wrappers
- Improvements to the invalidation paths
- AMD Vi:
- Race-condition fixed in debugfs code
- Make log buffer allocation NUMA aware
- RISC-V:
- IO-TLB flushing improvements
- Minor fixes
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Merge tag 'iommu-updates-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
"Core:
- Support for RISC-V IO-page-table format in generic iommupt code
ARM-SMMU Updates:
- Introduction of an "invalidation array" for SMMUv3, which enables
future scalability work and optimisations for devices with a large
number of SMMUv3 instances
- Update the conditions under which the SMMUv3 driver works around
hardware errata for invalidation on MMU-700 implementations
- Fix broken command filtering for the host view of NVIDIA's "cmdqv"
SMMUv3 extension
- MMU-500 device-tree binding additions for Qualcomm Eliza & Hawi
SoCs
Intel VT-d:
- Support for dirty tracking on domains attached to PASID
- Removal of unnecessary read*()/write*() wrappers
- Improvements to the invalidation paths
AMD Vi:
- Race-condition fixed in debugfs code
- Make log buffer allocation NUMA aware
RISC-V:
- IO-TLB flushing improvements
- Minor fixes"
* tag 'iommu-updates-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (48 commits)
iommu/vt-d: Restore IOMMU_CAP_CACHE_COHERENCY
dt-bindings: arm-smmu: qcom: Add compatible for Hawi SoC
iommu/amd: Invalidate IRT cache for DMA aliases
iommu/riscv: Remove overflows on the invalidation path
iommu/amd: Fix clone_alias() to use the original device's devid
iommu/vt-d: Remove the remaining pages along the invalidation path
iommu/vt-d: Pass size_order to qi_desc_piotlb() not npages
iommu/vt-d: Split piotlb invalidation into range and all
iommu/vt-d: Remove dmar_writel() and dmar_writeq()
iommu/vt-d: Remove dmar_readl() and dmar_readq()
iommufd/selftest: Test dirty tracking on PASID
iommu/vt-d: Support dirty tracking on PASID
iommu/vt-d: Rename device_set_dirty_tracking() and pass dmar_domain pointer
iommu/vt-d: Block PASID attachment to nested domain with dirty tracking
iommu/dma: Always allow DMA-FQ when iommupt provides the iommu_domain
iommu/riscv: Fix signedness bug
iommu/amd: Fix illegal cap/mmio access in IOMMU debugfs
iommu/amd: Fix illegal device-id access in IOMMU debugfs
iommu/tegra241-cmdqv: Update uAPI to clarify HYP_OWN requirement
iommu/tegra241-cmdqv: Set supports_cmd op in tegra241_vcmdq_hw_init()
...
|
||
|
Linus Torvalds
|
40286d6379 |
pci-v7.1-changes
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Merge tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Allow TLP Processing Hints to be enabled for RCiEPs (George Abraham
P)
- Enable AtomicOps only if we know the Root Port supports them (Gerd
Bayer)
- Don't enable AtomicOps for RCiEPs since none of them need Atomic
Ops and we can't tell whether the Root Complex would support them
(Gerd Bayer)
- Leave Precision Time Measurement disabled until a driver enables it
to avoid PCIe errors (Mika Westerberg)
- Make pci_set_vga_state() fail if bridge doesn't support VGA
routing, i.e., PCI_BRIDGE_CTL_VGA is not writable, and return
errors to vga_get() callers including userspace via
/dev/vga_arbiter (Simon Richter)
- Validate max-link-speed from DT in j721e, brcmstb, mediatek-gen3,
rzg3s drivers (where the actual controller constraints are known),
and remove validation from the generic OF DT accessor (Hans Zhang)
- Remove pc110pad driver (no longer useful after 486 CPU support
removed) and no_pci_devices() (pc110pad was the last user) (Dmitry
Torokhov, Heiner Kallweit)
Resource management:
- Prevent assigning space to unimplemented bridge windows; previously
we mistakenly assumed prefetchable window existed and assigned
space and put a BAR there (Ahmed Naseef)
- Avoid shrinking bridge windows to fit in the initial Root Port
window; fixes one problem with devices with large BARs connected
via switches, e.g., Thunderbolt (Ilpo Järvinen)
- Pass full extent of empty space, not just the aligned space, to
resource_alignf callback so free space before the requested
alignment can be used (Ilpo Järvinen)
- Place small resources before larger ones for better utilization of
address space (Ilpo Järvinen)
- Fix alignment calculation for resource size larger than align,
e.g., bridge windows larger than the 1MB required alignment (Ilpo
Järvinen)
Reset:
- Update slot handling so all ARI functions are treated as being in
the same slot. They're all reset by Secondary Bus Reset, but
previously drivers of ARI functions that appeared to be on a
non-zero device weren't notified and fatal hardware errors could
result (Keith Busch)
- Make sysfs reset_subordinate hotplug safe to avoid spurious hotplug
events (Keith Busch)
- Hide Secondary Bus Reset ('bus') from sysfs reset_methods if masked
by CXL because it has no effect (Vidya Sagar)
- Avoid FLR for AMD NPU device, where it causes the device to hang
(Lizhi Hou)
Error handling:
- Clear only error bits in PCIe Device Status to avoid accidentally
clearing Emergency Power Reduction Detected (Shuai Xue)
- Check for AER errors even in devices without drivers (Lukas Wunner)
- Initialize ratelimit info so DPC and EDR paths log AER error
information (Kuppuswamy Sathyanarayanan)
Power control:
- Add UPD720201/UPD720202 USB 3.0 xHCI Host Controller .compatible so
generic pwrctrl driver can control it (Neil Armstrong)
Hotplug:
- Set LED_HW_PLUGGABLE for NPEM hotplug-capable ports so LED core
doesn't complain when setting brightness fails because the endpoint
is gone (Richard Cheng)
Peer-to-peer DMA:
- Allow wildcards in list of host bridges that support peer-to-peer
DMA between hierarchy domains and add all Google SoCs (Jacob
Moroni)
Endpoint framework:
- Advertise dynamic inbound mapping support in pci-epf-test and
update host pci_endpoint_test to skip doorbell testing if not
advertised by endpoint (Koichiro Den)
- Return 0, not remaining timeout, when MHI eDMA ops complete so
mhi_ep_ring_add_element() doesn't interpret non-zero as failure
(Daniel Hodges)
- Remove vntb and ntb duplicate resource teardown that leads to oops
when .allow_link() fails or .drop_link() is called (Koichiro Den)
- Disable vntb delayed work before clearing BAR mappings and
doorbells to avoid oops caused by doing the work after resources
have been torn down (Koichiro Den)
- Add a way to describe reserved subregions within BARs, e.g.,
platform-owned fixed register windows, and use it for the RK3588
BAR4 DMA ctrl window (Koichiro Den)
- Add BAR_DISABLED for BARs that will never be available to an EPF
driver, and change some BAR_RESERVED annotations to BAR_DISABLED
(Niklas Cassel)
- Add NTB .get_dma_dev() callback for cases where DMA API requires a
different device, e.g., vNTB devices (Koichiro Den)
- Add reserved region types for MSI-X Table and PBA so Endpoint
controllers can them as describe hardware-owned regions in a
BAR_RESERVED BAR (Manikanta Maddireddy)
- Make Tegra194/234 BAR0 programmable and remove 1MB size limit
(Manikanta Maddireddy)
- Expose Tegra BAR2 (MSI-X) and BAR4 (DMA) as 64-bit BAR_RESERVED
(Manikanta Maddireddy)
- Add Tegra194 and Tegra234 device table entries to pci_endpoint_test
(Manikanta Maddireddy)
- Skip the BAR subrange selftest if there are not enough inbound
window resources to run the test (Christian Bruel)
New native PCIe controller drivers:
- Add DT binding and driver for Andes QiLai SoC PCIe host controller
(Randolph Lin)
- Add DT binding and driver for ESWIN PCIe Root Complex (Senchuan
Zhang)
Baikal T-1 PCIe controller driver:
- Remove driver since it never quite became usable (Andy Shevchenko)
Cadence PCIe controller driver:
- Implement byte/word config reads with dword (32-bit) reads because
some Cadence controllers don't support sub-dword accesses (Aksh
Garg)
CIX Sky1 PCIe controller driver:
- Add 'power-domains' to DT binding for SCMI power domain (Gary Yang)
Freescale i.MX6 PCIe controller driver:
- Add i.MX94 and i.MX943 to fsl,imx6q-pcie-ep DT binding (Richard
Zhu)
- Delay instead of polling for L2/L3 Ready after PME_Turn_off when
suspending i.MX6SX because LTSSM registers are inaccessible
(Richard Zhu)
- Separate PERST# assertion (for resetting endpoints) from core reset
(for resetting the RC itself) to prepare for new DTs with PERST#
GPIO in per-Root Port nodes (Sherry Sun)
- Retain Root Port MSI capability on i.MX7D, i.MX8MM, and i.MX8MQ so
MSI from downstream devices will work (Richard Zhu)
- Fix i.MX95 reference clock source selection when internal refclk is
used (Franz Schnyder)
Freescale Layerscape PCIe controller driver:
- Allow building as a removable module (Sascha Hauer)
MediaTek PCIe Gen3 controller driver:
- Use dev_err_probe() to simplify error paths and make deferred probe
messages visible in /sys/kernel/debug/devices_deferred (Chen-Yu
Tsai)
- Power off device if setup fails (Chen-Yu Tsai)
- Integrate new pwrctrl API to enable power control for WiFi/BT
adapters on mainboard or in PCIe or M.2 slots (Chen-Yu Tsai)
NVIDIA Tegra194 PCIe controller driver:
- Poll less aggressively and non-atomically for PME_TO_Ack during
transition to L2 (Vidya Sagar)
- Disable LTSSM after transition to Detect on surprise link down to
stop toggling between Polling and Detect (Manikanta Maddireddy)
- Don't force the device into the D0 state before L2 when suspending
or shutting down the controller (Vidya Sagar)
- Disable PERST# IRQ only in Endpoint mode because it's not
registered in Root Port mode (Manikanta Maddireddy)
- Handle 'nvidia,refclk-select' as optional (Vidya Sagar)
- Disable direct speed change in Endpoint mode so link speed change
is controlled by the host (Vidya Sagar)
- Set LTR values before link up to avoid bogus LTR messages with 0
latency (Vidya Sagar)
- Allow system suspend when the Endpoint link is down (Vidya Sagar)
- Use DWC IP core version, not Tegra custom values, to avoid DWC core
version check warnings (Manikanta Maddireddy)
- Apply ECRC workaround to devices based on DesignWare 5.00a as well
as 4.90a (Manikanta Maddireddy)
- Disable PM Substate L1.2 in Endpoint mode to work around Tegra234
erratum (Vidya Sagar)
- Delay post-PERST# cleanup until core is powered on to avoid CBB
timeout (Manikanta Maddireddy)
- Assert CLKREQ# so switches that forward it to their downstream side
can bring up those links successfully (Vidya Sagar)
- Calibrate pipe to UPHY for Endpoint mode to reset stale PLL state
from any previous bad link state (Vidya Sagar)
- Remove IRQF_ONESHOT flag from Endpoint interrupt registration so
DMA driver and Endpoint controller driver can share the interrupt
line (Vidya Sagar)
- Enable DMA interrupt to support DMA in both Root Port and Endpoint
modes (Vidya Sagar)
- Enable hardware link retraining after link goes down in Endpoint
mode (Vidya Sagar)
- Add DT binding and driver support for core clock monitoring (Vidya
Sagar)
Qualcomm PCIe controller driver:
- Advertise 'Hot-Plug Capable' and set 'No Command Completed Support'
since Qcom Root Ports support hotplug events like DL_Up/Down and
can accept writes to Slot Control without delays between writes
(Krishna Chaitanya Chundru)
Renesas R-Car PCIe controller driver:
- Mark Endpoint BAR0 and BAR2 as Resizable (Koichiro Den)
- Reduce EPC BAR alignment requirement to 4K (Koichiro Den)
Renesas RZ/G3S PCIe controller driver:
- Add RZ/G3E to DT binding and to driver (John Madieu)
- Assert (not deassert) resets in probe error path (John Madieu)
- Assert resets in suspend path in reverse order they were deasserted
during probe (John Madieu)
- Rework inbound window algorithm to prevent mapping more than
intended region and enforce alignment on size, to prepare for
RZ/G3E support (John Madieu)
Rockchip DesignWare PCIe controller driver:
- Add tracepoints for PCIe controller LTSSM transitions and link rate
changes (Shawn Lin)
- Trace LTSSM events collected by the dw-rockchip debug FIFO (Shawn
Lin)
SOPHGO PCIe controller driver:
- Disable ASPM L0s and L1 on Sophgo 2042 PCIe Root Ports that
advertise support for them (Yao Zi)
Synopsys DesignWare PCIe controller driver:
- Continue with system suspend even if an Endpoint doesn't respond
with PME_TO_Ack message (Manivannan Sadhasivam)
- Set Endpoint MSI-X Table Size in the correct function of a
multi-function device when configuring MSI-X, not in Function 0
(Aksh Garg)
- Set Max Link Width and Max Link Speed for all functions of a
multi-function device, not just Function 0 (Aksh Garg)
- Expose PCIe event counters in groups 5-7 in debugfs (Hans Zhang)
Miscellaneous:
- Warn only once about invalid ACS kernel parameter format (Richard
Cheng)
- Suppress FW_BUG warning when writing sysfs 'numa_node' with the
current value (Li RongQing)
- Drop redundant 'depends on PCI' from Kconfig (Julian Braha)"
* tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (165 commits)
PCI/P2PDMA: Add Google SoCs to the P2P DMA host bridge list
PCI/P2PDMA: Allow wildcard Device IDs in host bridge list
PCI: sg2042: Avoid L0s and L1 on Sophgo 2042 PCIe Root Ports
PCI: cadence: Add flags for disabling ASPM capability for broken Root Ports
PCI: tegra194: Add core monitor clock support
dt-bindings: PCI: tegra194: Add monitor clock support
PCI: tegra194: Enable hardware hot reset mode in Endpoint mode
PCI: tegra194: Enable DMA interrupt
PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration
PCI: tegra194: Calibrate pipe to UPHY for Endpoint mode
PCI: tegra194: Assert CLKREQ# explicitly by default
PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on
PCI: tegra194: Disable L1.2 capability of Tegra234 EP
PCI: dwc: Apply ECRC workaround to DesignWare 5.00a as well
PCI: tegra194: Use DWC IP core version
PCI: tegra194: Free up Endpoint resources during remove()
PCI: tegra194: Allow system suspend when the Endpoint link is not up
PCI: tegra194: Set LTR message request before PCIe link up in Endpoint mode
PCI: tegra194: Disable direct speed change for Endpoint mode
PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"
...
|
||
|
Linus Torvalds
|
f82b61de0f |
— Correct the version guard for the futex_numa_mpol test to require
libnuma 2.0.18 instead of 2.0.16, which is the version that actually introduced numa_set_mempolicy_home_node() used by the test — Allow the futex_numa_mpol selftest to build and run on systems without libnuma installed with affected test gracefully being skipped instead of failing to compile - Use the proper assertion macros so that individual sub-test failures are correctly propagated and the test suite reports failure when something goes wrong -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmnfpRgACgkQEsHwGGHe VUp4jRAAjcfKMRy2ms6PYQJUwPgFXkmGg1Ij0zQ7D6VxujMUmrmNcCt9pQiR9tmm ZuCWtZRvJ4L+GIl0iNnetl13Um3MtXlQQ+SZgnNhC8InATs0hCJia1sPXztmp1VC 36JDiHbzpNO/InxhBu3WJ+DZodN7RHuNCbnj11Leot2cmAz9njtANcudxDTG3r/o Bqs65KRFbx7WU3zPMujEPOzdyYn8KL3L2bxYKWIAd9n4hfoLcbMB4QaShyh1sGoW ymRMf8yV9vac1tjwOCugkkdDleV5S5LW/eItuNEppV/rBw35GGFTs2yUjaU5U2NN UaQVKDE6UEgJsrX0wBPLPdf10CJia4SA2oYN7PFkNogVGqM/cSzl2B/CqJbcKnur Gj2KUNK2VVrlln1pfhnu8NJYOIgkjGpSarH9XNGM+2CIsXergh23cKhhZVLVE4Wy YirLkW3BNIGmnvF9idvjcktVHibHkvHjRzn2bUhP1K4SMf6kRxsRbTE8Cg12Nlpe cGOt3/6VNyonbXFw3nXdlHNDKjmT/aUrNXRhxEIPTToD+DBfhp7Lce9ylba5/fPv jrqAC0kMkSdBVNmabMQ+n/WzteXLLeFbocPWmba7fDSGvmMSlj5AU9qOURhyquaK nPjxqE5lhbcFY0nZ9zRTP7PG9NwOhVCsCZppTyGirvw+Q/eRxHU= =LIxt -----END PGP SIGNATURE----- Merge tag 'locking_futex_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull futex selftest updates from Borislav Petkov: - Correct the version guard for the futex_numa_mpol test to require libnuma 2.0.18 instead of 2.0.16, which is the version that actually introduced numa_set_mempolicy_home_node() used by the test - Allow the futex_numa_mpol selftest to build and run on systems without libnuma installed with affected test gracefully being skipped instead of failing to compile - Use the proper assertion macros so that individual sub-test failures are correctly propagated and the test suite reports failure when something goes wrong * tag 'locking_futex_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/futex: Bump up libnuma version check selftests/futex: Conditionally include libnuma support selftests/futex: Fix incorrect result reporting of futex_requeue test item |
||
|
Linus Torvalds
|
334fbe734e |
mm.git review status for linus..mm-stable
Everything: Total patches: 368 Reviews/patch: 1.56 Reviewed rate: 74% Excluding DAMON: Total patches: 316 Reviews/patch: 1.77 Reviewed rate: 81% Excluding DAMON and zram: Total patches: 306 Reviews/patch: 1.81 Reviewed rate: 82% Excluding DAMON, zram and maple_tree: Total patches: 276 Reviews/patch: 2.01 Reviewed rate: 91% Significant patch series in this merge: - The 30 patch series "maple_tree: Replace big node with maple copy" from Liam Howlett is mainly prepararatory work for ongoing development but it does reduce stack usage and is an improvement. - The 12 patch series "mm, swap: swap table phase III: remove swap_map" from Kairui Song offers memory savings by removing the static swap_map. It also yields some CPU savings and implements several cleanups. - The 2 patch series "mm: memfd_luo: preserve file seals" from Pratyush Yadav adds file seal preservation to LUO's memfd code. - The 2 patch series "mm: zswap: add per-memcg stat for incompressible pages" from Jiayuan Chen adds additional userspace stats reportng to zswap. - The 4 patch series "arch, mm: consolidate empty_zero_page" from Mike Rapoport implements some cleanups for our handling of ZERO_PAGE() and zero_pfn. - The 2 patch series "mm/kmemleak: Improve scan_should_stop() implementation" from Zhongqiu Han provides an robustness improvement and some cleanups in the kmemleak code. - The 4 patch series "Improve khugepaged scan logic" from Vernon Yang "improves the khugepaged scan logic and reduces CPU consumption by prioritizing scanning tasks that access memory frequently". - The 2 patch series "Make KHO Stateless" from Jason Miu simplifies Kexec Handover by "transitioning KHO from an xarray-based metadata tracking system with serialization to a radix tree data structure that can be passed directly to the next kernel" - The 3 patch series "mm: vmscan: add PID and cgroup ID to vmscan tracepoints" from Thomas Ballasi and Steven Rostedt enhances vmscan's tracepointing. - The 5 patch series "mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE" from Catalin Marinas is a cleanup for the shadow stack code: remove per-arch code in favour of a generic implementation. - The 2 patch series "Fix KASAN support for KHO restored vmalloc regions" from Pasha Tatashin fixes a WARN() which can be emitted the KHO restores a vmalloc area. - The 4 patch series "mm: Remove stray references to pagevec" from Tal Zussman provides several cleanups, mainly udpating references to "struct pagevec", which became folio_batch three years ago. - The 17 patch series "mm: Eliminate fake head pages from vmemmap optimization" from Kiryl Shutsemau simplifies the HugeTLB vmemmap optimization (HVO) by changing how tail pages encode their relationship to the head page. - The 2 patch series "mm/damon/core: improve DAMOS quota efficiency for core layer filters" from SeongJae Park improves two problematic behaviors of DAMOS that makes it less efficient when core layer filters are used. - The 3 patch series "mm/damon: strictly respect min_nr_regions" from SeongJae Park improves DAMON usability by extending the treatment of the min_nr_regions user-settable parameter. - The 3 patch series "mm/page_alloc: pcp locking cleanup" from Vlastimil Babka is a proper fix for a previously hotfixed SMP=n issue. Code simplifications and cleanups ennsed. - The 16 patch series "mm: cleanups around unmapping / zapping" from David Hildenbrand implements "a bunch of cleanups around unmapping and zapping. Mostly simplifications, code movements, documentation and renaming of zapping functions". - The 6 patch series "support batched checking of the young flag for MGLRU" from Baolin Wang supports batched checking of the young flag for MGLRU. It's part cleanups; one benchmark shows large performance benefits for arm64. - The 5 patch series "memcg: obj stock and slab stat caching cleanups" from Johannes Weiner provides memcg cleanup and robustness improvements. - The 5 patch series "Allow order zero pages in page reporting" from Yuvraj Sakshith enhances page_reporting's free page reporting - it is presently and undesirably order-0 pages when reporting free memory. - The 6 patch series "mm: vma flag tweaks" from Lorenzo Stoakes is cleanup work following from the recent conversion of the VMA flags to a bitmap. - The 10 patch series "mm/damon: add optional debugging-purpose sanity checks" from SeongJae Park adds some more developer-facing debug checks into DAMON core. - The 2 patch series "mm/damon: test and document power-of-2 min_region_sz requirement" from SeongJae Park adds an additional DAMON kunit test and makes some adjustments to the addr_unit parameter handling. - The 3 patch series "mm/damon/core: make passed_sample_intervals comparisons overflow-safe" from SeongJae Park fixes a hard-to-hit time overflow issue in DAMON core. - The 7 patch series "mm/damon: improve/fixup/update ratio calculation, test and documentation" from SeongJae Park is a "batch of misc/minor improvements and fixups" for DAMON. - The 4 patch series "mm: move vma_(kernel|mmu)_pagesize() out of hugetlb.c" from David Hildenbrand fixes a possible issue with dax-device when CONFIG_HUGETLB=n. Some code movement was required. - The 6 patch series "zram: recompression cleanups and tweaks" from Sergey Senozhatsky provides "a somewhat random mix of fixups, recompression cleanups and improvements" in the zram code. - The 11 patch series "mm/damon: support multiple goal-based quota tuning algorithms" from SeongJae Park extend DAMOS quotas goal auto-tuning to support multiple tuning algorithms that users can select. - The 4 patch series "mm: thp: reduce unnecessary start_stop_khugepaged()" from Breno Leitao fixes the khugpaged sysfs handling so we no longer spam the logs with reams of junk when starting/stopping khugepaged. - The 3 patch series "mm: improve map count checks" from Lorenzo Stoakes provides some cleanups and slight fixes in the mremap, mmap and vma code. - The 5 patch series "mm/damon: support addr_unit on default monitoring targets for modules" from SeongJae Park extends the use of DAMON core's addr_unit tunable. - The 5 patch series "mm: khugepaged cleanups and mTHP prerequisites" from Nico Pache provides cleanups in the khugepaged and is a base for Nico's planned khugepaged mTHP support. - The 15 patch series "mm: memory hot(un)plug and SPARSEMEM cleanups" from David Hildenbrand implements code movement and cleanups in the memhotplug and sparsemem code. - The 2 patch series "mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE and cleanup CONFIG_MIGRATION" from David Hildenbrand rationalizes some memhotplug Kconfig support. - The 6 patch series "change young flag check functions to return bool" from Baolin Wang is "a cleanup patchset to change all young flag check functions to return bool". - The 3 patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues" from Josh Law and SeongJae Park fixes a few potential DAMON bugs. - The 25 patch series "mm/vma: convert vm_flags_t to vma_flags_t in vma code" from "converts a lot of the existing use of the legacy vm_flags_t data type to the new vma_flags_t type which replaces it". Mainly in the vma code. - The 21 patch series "mm: expand mmap_prepare functionality and usage" from Lorenzo Stoakes "expands the mmap_prepare functionality, which is intended to replace the deprecated f_op->mmap hook which has been the source of bugs and security issues for some time". Cleanups, documentation, extension of mmap_prepare into filesystem drivers. - The 13 patch series "mm/huge_memory: refactor zap_huge_pmd()" from Lorenzo Stoakes simplifies and cleans up zap_huge_pmd(). Additional cleanups around vm_normal_folio_pmd() and the softleaf functionality are performed. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCad3HDQAKCRDdBJ7gKXxA jrUQAPwNhPk5nPSxnyxjAeQtOBHqgCdnICeEismLajPKd9aYRgEA0s2XAu3tSUYi GrBnWImHG3s4ePQxVcPCegWTsOUrXgQ= =1Q7o -----END PGP SIGNATURE----- Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "maple_tree: Replace big node with maple copy" (Liam Howlett) Mainly prepararatory work for ongoing development but it does reduce stack usage and is an improvement. - "mm, swap: swap table phase III: remove swap_map" (Kairui Song) Offers memory savings by removing the static swap_map. It also yields some CPU savings and implements several cleanups. - "mm: memfd_luo: preserve file seals" (Pratyush Yadav) File seal preservation to LUO's memfd code - "mm: zswap: add per-memcg stat for incompressible pages" (Jiayuan Chen) Additional userspace stats reportng to zswap - "arch, mm: consolidate empty_zero_page" (Mike Rapoport) Some cleanups for our handling of ZERO_PAGE() and zero_pfn - "mm/kmemleak: Improve scan_should_stop() implementation" (Zhongqiu Han) A robustness improvement and some cleanups in the kmemleak code - "Improve khugepaged scan logic" (Vernon Yang) Improve khugepaged scan logic and reduce CPU consumption by prioritizing scanning tasks that access memory frequently - "Make KHO Stateless" (Jason Miu) Simplify Kexec Handover by transitioning KHO from an xarray-based metadata tracking system with serialization to a radix tree data structure that can be passed directly to the next kernel - "mm: vmscan: add PID and cgroup ID to vmscan tracepoints" (Thomas Ballasi and Steven Rostedt) Enhance vmscan's tracepointing - "mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE" (Catalin Marinas) Cleanup for the shadow stack code: remove per-arch code in favour of a generic implementation - "Fix KASAN support for KHO restored vmalloc regions" (Pasha Tatashin) Fix a WARN() which can be emitted the KHO restores a vmalloc area - "mm: Remove stray references to pagevec" (Tal Zussman) Several cleanups, mainly udpating references to "struct pagevec", which became folio_batch three years ago - "mm: Eliminate fake head pages from vmemmap optimization" (Kiryl Shutsemau) Simplify the HugeTLB vmemmap optimization (HVO) by changing how tail pages encode their relationship to the head page - "mm/damon/core: improve DAMOS quota efficiency for core layer filters" (SeongJae Park) Improve two problematic behaviors of DAMOS that makes it less efficient when core layer filters are used - "mm/damon: strictly respect min_nr_regions" (SeongJae Park) Improve DAMON usability by extending the treatment of the min_nr_regions user-settable parameter - "mm/page_alloc: pcp locking cleanup" (Vlastimil Babka) The proper fix for a previously hotfixed SMP=n issue. Code simplifications and cleanups ensued - "mm: cleanups around unmapping / zapping" (David Hildenbrand) A bunch of cleanups around unmapping and zapping. Mostly simplifications, code movements, documentation and renaming of zapping functions - "support batched checking of the young flag for MGLRU" (Baolin Wang) Batched checking of the young flag for MGLRU. It's part cleanups; one benchmark shows large performance benefits for arm64 - "memcg: obj stock and slab stat caching cleanups" (Johannes Weiner) memcg cleanup and robustness improvements - "Allow order zero pages in page reporting" (Yuvraj Sakshith) Enhance free page reporting - it is presently and undesirably order-0 pages when reporting free memory. - "mm: vma flag tweaks" (Lorenzo Stoakes) Cleanup work following from the recent conversion of the VMA flags to a bitmap - "mm/damon: add optional debugging-purpose sanity checks" (SeongJae Park) Add some more developer-facing debug checks into DAMON core - "mm/damon: test and document power-of-2 min_region_sz requirement" (SeongJae Park) An additional DAMON kunit test and makes some adjustments to the addr_unit parameter handling - "mm/damon/core: make passed_sample_intervals comparisons overflow-safe" (SeongJae Park) Fix a hard-to-hit time overflow issue in DAMON core - "mm/damon: improve/fixup/update ratio calculation, test and documentation" (SeongJae Park) A batch of misc/minor improvements and fixups for DAMON - "mm: move vma_(kernel|mmu)_pagesize() out of hugetlb.c" (David Hildenbrand) Fix a possible issue with dax-device when CONFIG_HUGETLB=n. Some code movement was required. - "zram: recompression cleanups and tweaks" (Sergey Senozhatsky) A somewhat random mix of fixups, recompression cleanups and improvements in the zram code - "mm/damon: support multiple goal-based quota tuning algorithms" (SeongJae Park) Extend DAMOS quotas goal auto-tuning to support multiple tuning algorithms that users can select - "mm: thp: reduce unnecessary start_stop_khugepaged()" (Breno Leitao) Fix the khugpaged sysfs handling so we no longer spam the logs with reams of junk when starting/stopping khugepaged - "mm: improve map count checks" (Lorenzo Stoakes) Provide some cleanups and slight fixes in the mremap, mmap and vma code - "mm/damon: support addr_unit on default monitoring targets for modules" (SeongJae Park) Extend the use of DAMON core's addr_unit tunable - "mm: khugepaged cleanups and mTHP prerequisites" (Nico Pache) Cleanups to khugepaged and is a base for Nico's planned khugepaged mTHP support - "mm: memory hot(un)plug and SPARSEMEM cleanups" (David Hildenbrand) Code movement and cleanups in the memhotplug and sparsemem code - "mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE and cleanup CONFIG_MIGRATION" (David Hildenbrand) Rationalize some memhotplug Kconfig support - "change young flag check functions to return bool" (Baolin Wang) Cleanups to change all young flag check functions to return bool - "mm/damon/sysfs: fix memory leak and NULL dereference issues" (Josh Law and SeongJae Park) Fix a few potential DAMON bugs - "mm/vma: convert vm_flags_t to vma_flags_t in vma code" (Lorenzo Stoakes) Convert a lot of the existing use of the legacy vm_flags_t data type to the new vma_flags_t type which replaces it. Mainly in the vma code. - "mm: expand mmap_prepare functionality and usage" (Lorenzo Stoakes) Expand the mmap_prepare functionality, which is intended to replace the deprecated f_op->mmap hook which has been the source of bugs and security issues for some time. Cleanups, documentation, extension of mmap_prepare into filesystem drivers - "mm/huge_memory: refactor zap_huge_pmd()" (Lorenzo Stoakes) Simplify and clean up zap_huge_pmd(). Additional cleanups around vm_normal_folio_pmd() and the softleaf functionality are performed. * tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits) mm: fix deferred split queue races during migration mm/khugepaged: fix issue with tracking lock mm/huge_memory: add and use has_deposited_pgtable() mm/huge_memory: add and use normal_or_softleaf_folio_pmd() mm: add softleaf_is_valid_pmd_entry(), pmd_to_softleaf_folio() mm/huge_memory: separate out the folio part of zap_huge_pmd() mm/huge_memory: use mm instead of tlb->mm mm/huge_memory: remove unnecessary sanity checks mm/huge_memory: deduplicate zap deposited table call mm/huge_memory: remove unnecessary VM_BUG_ON_PAGE() mm/huge_memory: add a common exit path to zap_huge_pmd() mm/huge_memory: handle buggy PMD entry in zap_huge_pmd() mm/huge_memory: have zap_huge_pmd return a boolean, add kdoc mm/huge: avoid big else branch in zap_huge_pmd() mm/huge_memory: simplify vma_is_specal_huge() mm: on remap assert that input range within the proposed VMA mm: add mmap_action_map_kernel_pages[_full]() uio: replace deprecated mmap hook with mmap_prepare in uio_info drivers: hv: vmbus: replace deprecated mmap hook with mmap_prepare mm: allow handling of stacked mmap_prepare hooks in more drivers ... |
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Kaushlendra Kumar
|
feffac1874 |
tools/power/x86: Add SOC slider and platform profile support
Add support for reading and writing SOC slider parameters and platform profile via sysfs in x86_energy_perf_policy. New command-line options: --soc-slider-balance <value> --soc-slider-offset <value> --platform-profile <name> These options allow control of the processor thermal SOC slider balance and offset through the processor_thermal_soc_slider module, as well as the platform profile class interface. When no update flags are set, the tool now also prints the current SOC slider and platform profile values alongside existing MSR output. Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> |
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Amery Hung
|
b4b0233730 |
selftests/bpf: Test small task local data allocation
Make sure task local data is working correctly for different allocation sizes. Existing task local data selftests allocate the maximum amount of data possible but miss the garbage data issue when only small amount of data is allocated. Therefore, test small data allocations as well. Signed-off-by: Amery Hung <ameryhung@gmail.com> Link: https://lore.kernel.org/r/20260413190259.358442-4-ameryhung@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Amery Hung
|
615e55a241 |
selftests/bpf: Fix tld_get_data() returning garbage data
BPF side tld_get_data() currently may return garbage when tld_data_u is not aligned to page_size. This can happen when small amount of memory is allocated for tld_data_u. The misalignment is supposed to be allowed and the BPF side will use tld_data_u->start to reference the tld_data_u in a page. However, since "start" is within tld_data_u, there is no way to know the correct "start" in the first place. As a result, BPF programs will see garbage data. The selftest did not catch this since it tries to allocate the maximum amount of data possible (i.e., a page) such that tld_data_u->start is always correct. Fix it by moving tld_data_u->start to tld_data_map->start. The original field is now renamed as unused instead of removing it because BPF side tld_get_data() views off = 0 returned from tld_fetch_key() as uninitialized. Signed-off-by: Amery Hung <ameryhung@gmail.com> Link: https://lore.kernel.org/r/20260413190259.358442-3-ameryhung@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Amery Hung
|
36bf7beb9d |
selftests/bpf: Prevent allocating data larger than a page
Fix a bug in the task local data library that may allocate more than a a page for tld_data_u. This may happen when users set a too large TLD_DYN_DATA_SIZE, so check it when creating dynamic TLD fields and fix the corresponding selftest. Signed-off-by: Amery Hung <ameryhung@gmail.com> Link: https://lore.kernel.org/r/20260413190259.358442-2-ameryhung@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Linus Torvalds
|
5bdb4078e1 |
sched_ext: Changes for v7.1
- Cgroup sub-scheduler groundwork. Multiple BPF schedulers can be attached to cgroups and the dispatch path is made hierarchical. This involves substantial restructuring of the core dispatch, bypass, watchdog, and dump paths to be per-scheduler, along with new infrastructure for scheduler ownership enforcement, lifecycle management, and cgroup subtree iteration. The enqueue path is not yet updated and will follow in a later cycle. - scx_bpf_dsq_reenq() generalized to support any DSQ including remote local DSQs and user DSQs. Built on top of this, SCX_ENQ_IMMED guarantees that tasks dispatched to local DSQs either run immediately or get reenqueued back through ops.enqueue(), giving schedulers tighter control over queueing latency. Also useful for opportunistic CPU sharing across sub-schedulers. - ops.dequeue() was only invoked when the core knew a task was in BPF data structures, missing scheduling property change events and skipping callbacks for non-local DSQ dispatches from ops.select_cpu(). Fixed to guarantee exactly one ops.dequeue() call when a task leaves BPF scheduler custody. - Kfunc access validation moved from runtime to BPF verifier time, removing runtime mask enforcement. - Idle SMT sibling prioritization in the idle CPU selection path. - Documentation, selftest, and tooling updates. Misc bug fixes and cleanups. - Merges from tip/sched-core, cgroup/for-7.1, and for-7.0-fixes to resolve dependencies and conflicts for the above changes. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCad0uaA4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGbktAQD2HrKdydyEfefz/n4mNpIXh/DFYX49NgKYcgUh sKy4ngD/Sy7nAZS2zwM+36PN6jBV7+cfuoaiKPgCstPFeGsvPwU= =fsgj -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext updates from Tejun Heo: - cgroup sub-scheduler groundwork Multiple BPF schedulers can be attached to cgroups and the dispatch path is made hierarchical. This involves substantial restructuring of the core dispatch, bypass, watchdog, and dump paths to be per-scheduler, along with new infrastructure for scheduler ownership enforcement, lifecycle management, and cgroup subtree iteration The enqueue path is not yet updated and will follow in a later cycle - scx_bpf_dsq_reenq() generalized to support any DSQ including remote local DSQs and user DSQs Built on top of this, SCX_ENQ_IMMED guarantees that tasks dispatched to local DSQs either run immediately or get reenqueued back through ops.enqueue(), giving schedulers tighter control over queueing latency Also useful for opportunistic CPU sharing across sub-schedulers - ops.dequeue() was only invoked when the core knew a task was in BPF data structures, missing scheduling property change events and skipping callbacks for non-local DSQ dispatches from ops.select_cpu() Fixed to guarantee exactly one ops.dequeue() call when a task leaves BPF scheduler custody - Kfunc access validation moved from runtime to BPF verifier time, removing runtime mask enforcement - Idle SMT sibling prioritization in the idle CPU selection path - Documentation, selftest, and tooling updates. Misc bug fixes and cleanups * tag 'sched_ext-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (134 commits) tools/sched_ext: Add explicit cast from void* in RESIZE_ARRAY() sched_ext: Make string params of __ENUM_set() const tools/sched_ext: Kick home CPU for stranded tasks in scx_qmap sched_ext: Drop spurious warning on kick during scheduler disable sched_ext: Warn on task-based SCX op recursion sched_ext: Rename scx_kf_allowed_on_arg_tasks() to scx_kf_arg_task_ok() sched_ext: Remove runtime kfunc mask enforcement sched_ext: Add verifier-time kfunc context filter sched_ext: Drop redundant rq-locked check from scx_bpf_task_cgroup() sched_ext: Decouple kfunc unlocked-context check from kf_mask sched_ext: Fix ops.cgroup_move() invocation kf_mask and rq tracking sched_ext: Track @p's rq lock across set_cpus_allowed_scx -> ops.set_cpumask sched_ext: Add select_cpu kfuncs to scx_kfunc_ids_unlocked sched_ext: Drop TRACING access to select_cpu kfuncs selftests/sched_ext: Fix wrong DSQ ID in peek_dsq error message sched_ext: Documentation: improve accuracy of task lifecycle pseudo-code selftests/sched_ext: Improve runner error reporting for invalid arguments sched_ext: Documentation: Fix scx_bpf_move_to_local kfunc name sched_ext: Documentation: Add ops.dequeue() to task lifecycle tools/sched_ext: Fix off-by-one in scx_sdt payload zeroing ... |
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Linus Torvalds
|
7de6b4a246 |
workqueue: Changes for v7.1
- New default WQ_AFFN_CACHE_SHARD affinity scope subdivides LLCs into
smaller shards to improve scalability on machines with many CPUs per
LLC.
- Misc: system_dfl_long_wq for long unbound works, devm_alloc_workqueue()
for device-managed allocation, sysfs exposure for ordered workqueues and
the EFI workqueue, removal of HK_TYPE_WQ from wq_unbound_cpumask, and
various small fixes.
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Merge tag 'wq-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
- New default WQ_AFFN_CACHE_SHARD affinity scope subdivides LLCs into
smaller shards to improve scalability on machines with many CPUs per
LLC
- Misc:
- system_dfl_long_wq for long unbound works
- devm_alloc_workqueue() for device-managed allocation
- sysfs exposure for ordered workqueues and the EFI workqueue
- removal of HK_TYPE_WQ from wq_unbound_cpumask
- various small fixes
* tag 'wq-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (21 commits)
workqueue: validate cpumask_first() result in llc_populate_cpu_shard_id()
workqueue: use NR_STD_WORKER_POOLS instead of hardcoded value
workqueue: avoid unguarded 64-bit division
docs: workqueue: document WQ_AFFN_CACHE_SHARD affinity scope
workqueue: add test_workqueue benchmark module
tools/workqueue: add CACHE_SHARD support to wq_dump.py
workqueue: set WQ_AFFN_CACHE_SHARD as the default affinity scope
workqueue: add WQ_AFFN_CACHE_SHARD affinity scope
workqueue: fix typo in WQ_AFFN_SMT comment
workqueue: Remove HK_TYPE_WQ from affecting wq_unbound_cpumask
workqueue: unlink pwqs from wq->pwqs list in alloc_and_link_pwqs() error path
workqueue: Remove NULL wq WARN in __queue_delayed_work()
workqueue: fix parse_affn_scope() prefix matching bug
workqueue: devres: Add device-managed allocate workqueue
workqueue: Add system_dfl_long_wq for long unbound works
tools/workqueue/wq_dump.py: add NODE prefix to all node columns
tools/workqueue/wq_dump.py: fix column alignment in node_nr/max_active section
tools/workqueue/wq_dump.py: remove backslash separator from node_nr/max_active header
efi: Allow to expose the workqueue via sysfs
workqueue: Allow to expose ordered workqueues via sysfs
...
|
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Linus Torvalds
|
a8e7ef3cec |
sound updates for 7.1-rc1
Nothing too thrilling here, but we see lots of driver updates and
bug fixes, including quirk additions and refactoring works, while
there have been little changes in the core functionality.
Here are some highlights:
* Core:
- Add validation for the control API put callback
- Fixes in compress-offload API timestamp handling
- Continued ASoC core API cleanups
* ASoC:
- Add support for bus keepers (for Apple devices in future)
- Enhancements to the SDCA support, including retaskable jacks
- Test improvements for Cirrus Logic drivers
- Lots of fixes for the NXP, nVidia and Qualcomm
- Support for AMD RPL DMIC, Cirrus Logic CS42L43 and CS47L47, nVidia
machines with CPCAP and WM8962
* USB-audio:
- Quirks for Huawei Headset, Focusrite Novation, MV-Silicon,
Studio 1824, Arturia AF16Rig, Hotone Audio, Feaulle Rainbow,
PreSonus AudioBox, Moondrop Ju Jiu, Scarlett 18i20, etc
- Extended mixer volume quirk handling
- UAF and other fixes for us144mkii, 6fire and caiaq drivers
* HD-audio:
- Add quirks or fixes for Acer, Lenovo, HP, ASUS machines
- Fixes & cleanups of GPIO helper code
* Misc:
- Add suspend/resume support for multiple legacy ISA and Apple
drivers
- Further regression fixes for ctxfi driver
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Merge tag 'sound-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Nothing too thrilling here, but we see lots of driver updates and bug
fixes, including quirk additions and refactoring works, while there
have been little changes in the core functionality. Here are some
highlights:
Core:
- Add validation for the control API put callback
- Fixes in compress-offload API timestamp handling
- Continued ASoC core API cleanups
ASoC:
- Add support for bus keepers (for Apple devices in future)
- Enhancements to the SDCA support, including retaskable jacks
- Test improvements for Cirrus Logic drivers
- Lots of fixes for the NXP, nVidia and Qualcomm
- Support for AMD RPL DMIC, Cirrus Logic CS42L43 and CS47L47, nVidia
machines with CPCAP and WM8962
USB-audio:
- Quirks for Huawei Headset, Focusrite Novation, MV-Silicon, Studio
1824, Arturia AF16Rig, Hotone Audio, Feaulle Rainbow, PreSonus
AudioBox, Moondrop Ju Jiu, Scarlett 18i20, etc
- Extended mixer volume quirk handling
- UAF and other fixes for us144mkii, 6fire and caiaq drivers
HD-audio:
- Add quirks or fixes for Acer, Lenovo, HP, ASUS machines
- Fixes & cleanups of GPIO helper code
Misc:
- Add suspend/resume support for multiple legacy ISA and Apple
drivers
- Further regression fixes for ctxfi driver"
* tag 'sound-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (359 commits)
ALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names()
ALSA: usb-audio: Fix missing error handling for get_min_max*()
ALSA: hda/realtek - fixed speaker no sound update
ALSA: hda/realtek: Add quirk for Acer PT316-51S headset mic
ALSA: usb-audio: Exclude Scarlett 18i20 1st Gen from SKIP_IFACE_SETUP
ALSA: hda/realtek: Add quirk for Legion S7 15IMH
ALSA: hda/realtek: Add quirk for HP Spectre x360 14-ea
ALSA: caiaq: take a reference on the USB device in create_card()
ASoC: dt-bindings: rockchip: convert rk3399-gru-sound to DT Schema
ALSA: sscape: Add suspend and resume support
ALSA: sscape: Cache per-card resources for board reinitialization
ALSA: usb-audio: Do not expose sticky mixers
ALSA: usb-audio: Move volume control resolution check into a function
ALSA: usb-audio: Add error checks against get_min_max*()
ALSA: usb-audio: Add quirk for PreSonus AudioBox USB
ALSA: interwave: guard PM-only restore helpers with CONFIG_PM
ALSA: usb-audio: Evaluate packsize caps at the right place
ALSA: sc6000: Restore board setup across suspend
ALSA: sc6000: Keep the programmed board state in card-private data
ALSA: 6fire: fix use-after-free on disconnect
...
|
||
|
Eduard Zingerman
|
d97cc8fc99 |
selftests/bpf: arg tracking for imprecise/multi-offset BPF_ST/STX
Add test cases for clear_stack_for_all_offs and dst_is_local_fp handling of multi-offset and ARG_IMPRECISE stack pointers: - st_imm_join_with_multi_off: BPF_ST through multi-offset dst should join at_stack with none instead of overwriting both candidate slots. - st_imm_join_with_imprecise_off: BPF_ST through offset-imprecise dst should join at_stack with none instead of clearing all slots. - st_imm_join_with_single_off: a canary checking that BPF_ST with a known offset overwrites slot instead of joining. - imprecise_dst_spill_join: BPF_STX through ARG_IMPRECISE dst should be recognized as a local spill and join at_stack with the written value. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260413-stacklive-fixes-v2-2-398e126e5cf3@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Shung-Hsi Yu
|
813f336269 |
selftests/bpf: Fix timer_start_deadlock failure due to hrtimer change
Since commit
|
||
|
Yiyang Chen
|
cc82b3dcc6 |
tools/accounting: handle truncated taskstats netlink messages
procacct and getdelays use a fixed receive buffer for taskstats generic netlink messages. A multi-threaded process exit can emit a single PID+TGID notification large enough to exceed that buffer on newer kernels. Switch to recvmsg() so MSG_TRUNC is detected explicitly, increase the message buffer size, and report truncated datagrams clearly instead of misparsing them as fatal netlink errors. Also print the taskstats version in debug output to make version mismatches easier to diagnose while inspecting taskstats traffic. Link: https://lkml.kernel.org/r/520308bb4cbbaf8dc2c7296b5f60f11e12fb30a5.1774810498.git.cyyzero16@gmail.com Signed-off-by: Yiyang Chen <cyyzero16@gmail.com> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Dr. Thomas Orgis <thomas.orgis@uni-hamburg.de> Cc: Fan Yu <fan.yu9@zte.com.cn> Cc: Wang Yaxin <wang.yaxin@zte.com.cn> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Linus Torvalds
|
5c0f43e853 |
kernel-7.1-rc1.misc
Please consider pulling these changes from the signed kernel-7.1-rc1.misc tag.
Thanks!
Christian
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Merge tag 'kernel-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull pid_namespace updates from Christian Brauner:
- pid_namespace: make init creation more flexible
Annotate ->child_reaper accesses with {READ,WRITE}_ONCE() to protect
the unlocked readers from cpu/compiler reordering, and enforce that
pid 1 in a pid namespace is always the first allocated pid (the
set_tid path already required this).
On top of that, allow opening pid_for_children before the pid
namespace init has been created. This lets one process create the pid
namespace and a different process create the init via setns(), which
makes clone3(set_tid) usable in all cases evenly and is particularly
useful to CRIU when restoring nested containers.
A new selftest covers both the basic create-pidns-then-init flow and
the cross-process variant, and a MAINTAINERS entry for the pid
namespace code is added.
- unrelated signal cleanup: update outdated comment for the removed
freezable_schedule()
* tag 'kernel-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
signal: update outdated comment for removed freezable_schedule()
MAINTAINERS: add a pid namespace entry
selftests: Add tests for creating pidns init via setns
pid_namespace: allow opening pid_for_children before init was created
pid: check init is created first after idr alloc
pid_namespace: avoid optimization of accesses to ->child_reaper
|
||
|
Linus Torvalds
|
7c8a4671dc |
vfs-7.1-rc1.mount.v2
Please consider pulling these changes from the signed vfs-7.1-rc1.mount.v2 tag.
Thanks!
Christian
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Merge tag 'vfs-7.1-rc1.mount.v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
- Add FSMOUNT_NAMESPACE flag to fsmount() that creates a new mount
namespace with the newly created filesystem attached to a copy of the
real rootfs. This returns a namespace file descriptor instead of an
O_PATH mount fd, similar to how OPEN_TREE_NAMESPACE works for
open_tree().
This allows creating a new filesystem and immediately placing it in a
new mount namespace in a single operation, which is useful for
container runtimes and other namespace-based isolation mechanisms.
This accompanies OPEN_TREE_NAMESPACE and avoids a needless detour via
OPEN_TREE_NAMESPACE to get the same effect. Will be especially useful
when you mount an actual filesystem to be used as the container
rootfs.
- Currently, creating a new mount namespace always copies the entire
mount tree from the caller's namespace. For containers and sandboxes
that intend to build their mount table from scratch this is wasteful:
they inherit a potentially large mount tree only to immediately tear
it down.
This series adds support for creating a mount namespace that contains
only a clone of the root mount, with none of the child mounts. Two
new flags are introduced:
- CLONE_EMPTY_MNTNS (0x400000000) for clone3(), using the 64-bit flag space
- UNSHARE_EMPTY_MNTNS (0x00100000) for unshare()
Both flags imply CLONE_NEWNS. The resulting namespace contains a
single nullfs root mount with an immutable empty directory. The
intended workflow is to then mount a real filesystem (e.g., tmpfs)
over the root and build the mount table from there.
- Allow MOVE_MOUNT_BENEATH to target the caller's rootfs, allowing to
switch out the rootfs without pivot_root(2).
The traditional approach to switching the rootfs involves
pivot_root(2) or a chroot_fs_refs()-based mechanism that atomically
updates fs->root for all tasks sharing the same fs_struct. This has
consequences for fork(), unshare(CLONE_FS), and setns().
This series instead decomposes root-switching into individually
atomic, locally-scoped steps:
fd_tree = open_tree(-EBADF, "/newroot", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
fchdir(fd_tree);
move_mount(fd_tree, "", AT_FDCWD, "/", MOVE_MOUNT_BENEATH | MOVE_MOUNT_F_EMPTY_PATH);
chroot(".");
umount2(".", MNT_DETACH);
Since each step only modifies the caller's own state, the
fork/unshare/setns races are eliminated by design.
A key step to making this possible is to remove the locked mount
restriction. Originally MOVE_MOUNT_BENEATH doesn't support mounting
beneath a mount that is locked. The locked mount protects the
underlying mount from being revealed. This is a core mechanism of
unshare(CLONE_NEWUSER | CLONE_NEWNS). The mounts in the new mount
namespace become locked. That effectively makes the new mount table
useless as the caller cannot ever get rid of any of the mounts no
matter how useless they are.
We can lift this restriction though. We simply transfer the locked
property from the top mount to the mount beneath. This works because
what we care about is to protect the underlying mount aka the parent.
The mount mounted between the parent and the top mount takes over the
job of protecting the parent mount from the top mount mount. This
leaves us free to remove the locked property from the top mount which
can consequently be unmounted:
unshare(CLONE_NEWUSER | CLONE_NEWNS)
and we inherit a clone of procfs on /proc then currently we cannot
unmount it as:
umount -l /proc
will fail with EINVAL because the procfs mount is locked.
After this series we can now do:
mount --beneath -t tmpfs tmpfs /proc
umount -l /proc
after which a tmpfs mount has been placed beneath the procfs mount.
The tmpfs mount has become locked and the procfs mount has become
unlocked.
This means you can safely modify an inherited mount table after
unprivileged namespace creation.
Afterwards we simply make it possible to move a mount beneath the
rootfs allowing to upgrade the rootfs.
Removing the locked restriction makes this very useful for containers
created with unshare(CLONE_NEWUSER | CLONE_NEWNS) to reshuffle an
inherited mount table safely and MOVE_MOUNT_BENEATH makes it possible
to switch out the rootfs instead of using the costly pivot_root(2).
* tag 'vfs-7.1-rc1.mount.v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests/namespaces: remove unused utils.h include from listns_efault_test
selftests/fsmount_ns: add missing TARGETS and fix cap test
selftests/empty_mntns: fix wrong CLONE_EMPTY_MNTNS hex value in comment
selftests/empty_mntns: fix statmount_alloc() signature mismatch
selftests/statmount: remove duplicate wait_for_pid()
mount: always duplicate mount
selftests/filesystems: add MOVE_MOUNT_BENEATH rootfs tests
move_mount: allow MOVE_MOUNT_BENEATH on the rootfs
move_mount: transfer MNT_LOCKED
selftests/filesystems: add clone3 tests for empty mount namespaces
selftests/filesystems: add tests for empty mount namespaces
namespace: allow creating empty mount namespaces
selftests: add FSMOUNT_NAMESPACE tests
selftests/statmount: add statmount_alloc() helper
tools: update mount.h header
mount: add FSMOUNT_NAMESPACE
mount: simplify __do_loopback()
mount: start iterating from start of rbtree
|
||
|
Linus Torvalds
|
91a4855d6c |
Networking changes for 7.1.
Core & protocols
----------------
- Support HW queue leasing, allowing containers to be granted access
to HW queues for zero-copy operations and AF_XDP.
- Number of code moves to help the compiler with inlining.
Avoid output arguments for returning drop reason where possible.
- Rework drop handling within qdiscs to include more metadata
about the reason and dropping qdisc in the tracepoints.
- Remove the rtnl_lock use from IP Multicast Routing.
- Pack size information into the Rx Flow Steering table pointer
itself. This allows making the table itself a flat array of u32s,
thus making the table allocation size a power of two.
- Report TCP delayed ack timer information via socket diag.
- Add ip_local_port_step_width sysctl to allow distributing the randomly
selected ports more evenly throughout the allowed space.
- Add support for per-route tunsrc in IPv6 segment routing.
- Start work of switching sockopt handling to iov_iter.
- Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid
buffer size drifting up.
- Support MSG_EOR in MPTCP.
- Add stp_mode attribute to the bridge driver for STP mode selection.
This addresses concerns about call_usermodehelper() usage.
- Remove UDP-Lite support (as announced in 2023).
- Remove support for building IPv6 as a module.
Remove the now unnecessary function calling indirection.
Cross-tree stuff
----------------
- Move Michael MIC code from generic crypto into wireless,
it's considered insecure but some WiFi networks still need it.
Netfilter
---------
- Switch nft_fib_ipv6 module to no longer need temporary dst_entry
object allocations by using fib6_lookup() + RCU.
Florian W reports this gets us ~13% higher packet rate.
- Convert IPVS's global __ip_vs_mutex to per-net service_mutex and
switch the service tables to be per-net. Convert some code that
walks the service lists to use RCU instead of the service_mutex.
- Add more opinionated input validation to lower security exposure.
- Make IPVS hash tables to be per-netns and resizable.
Wireless
--------
- Finished assoc frame encryption/EPPKE/802.1X-over-auth.
- Radar detection improvements.
- Add 6 GHz incumbent signal detection APIs.
- Multi-link support for FILS, probe response templates and
client probing.
- New APIs and mac80211 support for NAN (Neighbor Aware Networking,
aka Wi-Fi Aware) so less work must be in firmware.
Driver API
----------
- Add numerical ID for devlink instances (to avoid having to create
fake bus/device pairs just to have an ID). Support shared devlink
instances which span multiple PFs.
- Add standard counters for reporting pause storm events
(implement in mlx5 and fbnic).
- Add configuration API for completion writeback buffering
(implement in mana).
- Support driver-initiated change of RSS context sizes.
- Support DPLL monitoring input frequency (implement in zl3073x).
- Support per-port resources in devlink (implement in mlx5).
Misc
----
- Expand the YAML spec for Netfilter.
Drivers
-------
- Software:
- macvlan: support multicast rx for bridge ports with shared source
MAC address
- team: decouple receive and transmit enablement for IEEE 802.3ad
LACP "independent control"
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- support high order pages in zero-copy mode (for payload
coalescing)
- support multiple packets in a page (for systems with 64kB pages)
- Broadcom 25-400GE (bnxt):
- implement XDP RSS hash metadata extraction
- add software fallback for UDP GSO, lowering the IOMMU cost
- Broadcom 800GE (bnge):
- add link status and configuration handling
- add various HW and SW statistics
- Marvell/Cavium:
- NPC HW block support for cn20k
- Huawei (hinic3):
- add mailbox / control queue
- add rx VLAN offload
- add driver info and link management
- Ethernet NICs:
- Marvell/Aquantia:
- support reading SFP module info on some AQC100 cards
- Realtek PCI (r8169):
- add support for RTL8125cp
- Realtek USB (r8152):
- support for the RTL8157 5Gbit chip
- add 2500baseT EEE status/configuration support
- Ethernet NICs embedded and off-the-shelf IP:
- Synopsys (stmmac):
- cleanup and reorganize SerDes handling and PCS support
- cleanup descriptor handling and per-platform data
- cleanup and consolidate MDIO defines and handling
- shrink driver memory use for internal structures
- improve Tx IRQ coalescing
- improve TCP segmentation handling
- add support for Spacemit K3
- Cadence (macb):
- support PHYs that have inband autoneg disabled with GEM
- support IEEE 802.3az EEE
- rework usrio capabilities and handling
- AMD (xgbe):
- improve power management for S0i3
- improve TX resilience for link-down handling
- Virtual:
- Google cloud vNIC:
- support larger ring sizes in DQO-QPL mode
- improve HW-GRO handling
- support UDP GSO for DQO format
- PCIe NTB:
- support queue count configuration
- Ethernet PHYs:
- automatically disable PHY autonomous EEE if MAC is in charge
- Broadcom:
- add BCM84891/BCM84892 support
- Micrel:
- support for LAN9645X internal PHY
- Realtek:
- add RTL8224 pair order support
- support PHY LEDs on RTL8211F-VD
- support spread spectrum clocking (SSC)
- Maxlinear:
- add PHY-level statistics via ethtool
- Ethernet switches:
- Maxlinear (mxl862xx):
- support for bridge offloading
- support for VLANs
- support driver statistics
- Bluetooth:
- large number of fixes and new device IDs
- Mediatek:
- support MT6639 (MT7927)
- support MT7902 SDIO
- WiFi:
- Intel (iwlwifi):
- UNII-9 and continuing UHR work
- MediaTek (mt76):
- mt7996/mt7925 MLO fixes/improvements
- mt7996 NPU support (HW eth/wifi traffic offload)
- Qualcomm (ath12k):
- monitor mode support on IPQ5332
- basic hwmon temperature reporting
- support IPQ5424
- Realtek:
- add USB RX aggregation to improve performance
- add USB TX flow control by tracking in-flight URBs
- Cellular:
- IPA v5.2 support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Support HW queue leasing, allowing containers to be granted access
to HW queues for zero-copy operations and AF_XDP
- Number of code moves to help the compiler with inlining. Avoid
output arguments for returning drop reason where possible
- Rework drop handling within qdiscs to include more metadata about
the reason and dropping qdisc in the tracepoints
- Remove the rtnl_lock use from IP Multicast Routing
- Pack size information into the Rx Flow Steering table pointer
itself. This allows making the table itself a flat array of u32s,
thus making the table allocation size a power of two
- Report TCP delayed ack timer information via socket diag
- Add ip_local_port_step_width sysctl to allow distributing the
randomly selected ports more evenly throughout the allowed space
- Add support for per-route tunsrc in IPv6 segment routing
- Start work of switching sockopt handling to iov_iter
- Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid
buffer size drifting up
- Support MSG_EOR in MPTCP
- Add stp_mode attribute to the bridge driver for STP mode selection.
This addresses concerns about call_usermodehelper() usage
- Remove UDP-Lite support (as announced in 2023)
- Remove support for building IPv6 as a module. Remove the now
unnecessary function calling indirection
Cross-tree stuff:
- Move Michael MIC code from generic crypto into wireless, it's
considered insecure but some WiFi networks still need it
Netfilter:
- Switch nft_fib_ipv6 module to no longer need temporary dst_entry
object allocations by using fib6_lookup() + RCU.
Florian W reports this gets us ~13% higher packet rate
- Convert IPVS's global __ip_vs_mutex to per-net service_mutex and
switch the service tables to be per-net. Convert some code that
walks the service lists to use RCU instead of the service_mutex
- Add more opinionated input validation to lower security exposure
- Make IPVS hash tables to be per-netns and resizable
Wireless:
- Finished assoc frame encryption/EPPKE/802.1X-over-auth
- Radar detection improvements
- Add 6 GHz incumbent signal detection APIs
- Multi-link support for FILS, probe response templates and client
probing
- New APIs and mac80211 support for NAN (Neighbor Aware Networking,
aka Wi-Fi Aware) so less work must be in firmware
Driver API:
- Add numerical ID for devlink instances (to avoid having to create
fake bus/device pairs just to have an ID). Support shared devlink
instances which span multiple PFs
- Add standard counters for reporting pause storm events (implement
in mlx5 and fbnic)
- Add configuration API for completion writeback buffering (implement
in mana)
- Support driver-initiated change of RSS context sizes
- Support DPLL monitoring input frequency (implement in zl3073x)
- Support per-port resources in devlink (implement in mlx5)
Misc:
- Expand the YAML spec for Netfilter
Drivers
- Software:
- macvlan: support multicast rx for bridge ports with shared
source MAC address
- team: decouple receive and transmit enablement for IEEE 802.3ad
LACP "independent control"
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- support high order pages in zero-copy mode (for payload
coalescing)
- support multiple packets in a page (for systems with 64kB
pages)
- Broadcom 25-400GE (bnxt):
- implement XDP RSS hash metadata extraction
- add software fallback for UDP GSO, lowering the IOMMU cost
- Broadcom 800GE (bnge):
- add link status and configuration handling
- add various HW and SW statistics
- Marvell/Cavium:
- NPC HW block support for cn20k
- Huawei (hinic3):
- add mailbox / control queue
- add rx VLAN offload
- add driver info and link management
- Ethernet NICs:
- Marvell/Aquantia:
- support reading SFP module info on some AQC100 cards
- Realtek PCI (r8169):
- add support for RTL8125cp
- Realtek USB (r8152):
- support for the RTL8157 5Gbit chip
- add 2500baseT EEE status/configuration support
- Ethernet NICs embedded and off-the-shelf IP:
- Synopsys (stmmac):
- cleanup and reorganize SerDes handling and PCS support
- cleanup descriptor handling and per-platform data
- cleanup and consolidate MDIO defines and handling
- shrink driver memory use for internal structures
- improve Tx IRQ coalescing
- improve TCP segmentation handling
- add support for Spacemit K3
- Cadence (macb):
- support PHYs that have inband autoneg disabled with GEM
- support IEEE 802.3az EEE
- rework usrio capabilities and handling
- AMD (xgbe):
- improve power management for S0i3
- improve TX resilience for link-down handling
- Virtual:
- Google cloud vNIC:
- support larger ring sizes in DQO-QPL mode
- improve HW-GRO handling
- support UDP GSO for DQO format
- PCIe NTB:
- support queue count configuration
- Ethernet PHYs:
- automatically disable PHY autonomous EEE if MAC is in charge
- Broadcom:
- add BCM84891/BCM84892 support
- Micrel:
- support for LAN9645X internal PHY
- Realtek:
- add RTL8224 pair order support
- support PHY LEDs on RTL8211F-VD
- support spread spectrum clocking (SSC)
- Maxlinear:
- add PHY-level statistics via ethtool
- Ethernet switches:
- Maxlinear (mxl862xx):
- support for bridge offloading
- support for VLANs
- support driver statistics
- Bluetooth:
- large number of fixes and new device IDs
- Mediatek:
- support MT6639 (MT7927)
- support MT7902 SDIO
- WiFi:
- Intel (iwlwifi):
- UNII-9 and continuing UHR work
- MediaTek (mt76):
- mt7996/mt7925 MLO fixes/improvements
- mt7996 NPU support (HW eth/wifi traffic offload)
- Qualcomm (ath12k):
- monitor mode support on IPQ5332
- basic hwmon temperature reporting
- support IPQ5424
- Realtek:
- add USB RX aggregation to improve performance
- add USB TX flow control by tracking in-flight URBs
- Cellular:
- IPA v5.2 support"
* tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1561 commits)
net: pse-pd: fix kernel-doc function name for pse_control_find_by_id()
wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit
wireguard: allowedips: remove redundant space
tools: ynl: add sample for wireguard
wireguard: allowedips: Use kfree_rcu() instead of call_rcu()
MAINTAINERS: Add netkit selftest files
selftests/net: Add additional test coverage in nk_qlease
selftests/net: Split netdevsim tests from HW tests in nk_qlease
tools/ynl: Make YnlFamily closeable as a context manager
net: airoha: Add missing PPE configurations in airoha_ppe_hw_init()
net: airoha: Fix VIP configuration for AN7583 SoC
net: caif: clear client service pointer on teardown
net: strparser: fix skb_head leak in strp_abort_strp()
net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()
selftests/bpf: add test for xdp_master_redirect with bond not up
net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master
net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration
sctp: disable BH before calling udp_tunnel_xmit_skb()
sctp: fix missing encap_port propagation for GSO fragments
net: airoha: Rely on net_device pointer in ETS callbacks
...
|
||
|
Linus Torvalds
|
f5ad410100 |
bpf-next-7.1
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Merge tag 'bpf-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
- Welcome new BPF maintainers: Kumar Kartikeya Dwivedi, Eduard
Zingerman while Martin KaFai Lau reduced his load to Reviwer.
- Lots of fixes everywhere from many first time contributors. Thank you
All.
- Diff stat is dominated by mechanical split of verifier.c into
multiple components:
- backtrack.c: backtracking logic and jump history
- states.c: state equivalence
- cfg.c: control flow graph, postorder, strongly connected
components
- liveness.c: register and stack liveness
- fixups.c: post-verification passes: instruction patching, dead
code removal, bpf_loop inlining, finalize fastcall
8k line were moved. verifier.c still stands at 20k lines.
Further refactoring is planned for the next release.
- Replace dynamic stack liveness with static stack liveness based on
data flow analysis.
This improved the verification time by 2x for some programs and
equally reduced memory consumption. New logic is in liveness.c and
supported by constant folding in const_fold.c (Eduard Zingerman,
Alexei Starovoitov)
- Introduce BTF layout to ease addition of new BTF kinds (Alan Maguire)
- Use kmalloc_nolock() universally in BPF local storage (Amery Hung)
- Fix several bugs in linked registers delta tracking (Daniel Borkmann)
- Improve verifier support of arena pointers (Emil Tsalapatis)
- Improve verifier tracking of register bounds in min/max and tnum
domains (Harishankar Vishwanathan, Paul Chaignon, Hao Sun)
- Further extend support for implicit arguments in the verifier (Ihor
Solodrai)
- Add support for nop,nop5 instruction combo for USDT probes in libbpf
(Jiri Olsa)
- Support merging multiple module BTFs (Josef Bacik)
- Extend applicability of bpf_kptr_xchg (Kaitao Cheng)
- Retire rcu_trace_implies_rcu_gp() (Kumar Kartikeya Dwivedi)
- Support variable offset context access for 'syscall' programs (Kumar
Kartikeya Dwivedi)
- Migrate bpf_task_work and dynptr to kmalloc_nolock() (Mykyta
Yatsenko)
- Fix UAF in in open-coded task_vma iterator (Puranjay Mohan)
* tag 'bpf-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (241 commits)
selftests/bpf: cover short IPv4/IPv6 inputs with adjust_room
bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb
selftests/bpf: Use memfd_create instead of shm_open in cgroup_iter_memcg
selftests/bpf: Add test for cgroup storage OOB read
bpf: Fix OOB in pcpu_init_value
selftests/bpf: Fix reg_bounds to match new tnum-based refinement
selftests/bpf: Add tests for non-arena/arena operations
bpf: Allow instructions with arena source and non-arena dest registers
bpftool: add missing fsession to the usage and docs of bpftool
docs/bpf: add missing fsession attach type to docs
bpf: add missing fsession to the verifier log
bpf: Move BTF checking logic into check_btf.c
bpf: Move backtracking logic to backtrack.c
bpf: Move state equivalence logic to states.c
bpf: Move check_cfg() into cfg.c
bpf: Move compute_insn_live_regs() into liveness.c
bpf: Move fixup/post-processing logic from verifier.c into fixups.c
bpf: Simplify do_check_insn()
bpf: Move checks for reserved fields out of the main pass
bpf: Delete unused variable
...
|
||
|
Linus Torvalds
|
e997ac58ad |
linux_kselftest-next-7.1-rc1
Improvements and fixes kselftest, kselftest harness, frameworks
and individual tests:
-- cpu-hotplug: fix to check if cpu hotplug is supported to avoid
test failures when cpu hotplug isn't supported.
-- frace: fix to relevant comparisons and path checks in the helper so
it handles those patterns without spurious shell warnings.
-- runner.sh: add ktrap support
-- tracing: fix to make --logdir option work again
-- tracing: fix to check awk supports non POSIX strtonum()
-- mqueue: fix incorrectly named settings file to make sure the test
used the correct timeout value
-- kselftest:
- fix to treat xpass as successful result
- add ksft_reset_state()
-- kselftest_harness:
- validate kselftest exit codes are handled explicitly
- add detection of invalid mixing of kselftest and harness functionality
- add validation of intermixing of kselftest and harness functionality
-- run_kselftest.sh:
- remove unused $ROOT
- resolve BASE_DIR with pwd -P to avoid dependency on realpath
or readlink commands to generate a physical absolute path for
BASE_DIR
- allow choosing per-test log directory
- preserve subtarget failures in all/install
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Merge tag 'linux_kselftest-next-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
- cpu-hotplug: fix to check if cpu hotplug is supported to avoid
test failures when cpu hotplug isn't supported.
- frace: fix to relevant comparisons and path checks in the helper so
it handles those patterns without spurious shell warnings.
- runner.sh: add ktrap support
- tracing: fix to make --logdir option work again
- tracing: fix to check awk supports non POSIX strtonum()
- mqueue: fix incorrectly named settings file to make sure the test
used the correct timeout value
- kselftest:
- fix to treat xpass as successful result
- add ksft_reset_state()
- kselftest_harness:
- validate kselftest exit codes are handled explicitly
- add detection of invalid mixing of kselftest and harness
functionality
- add validation of intermixing of kselftest and harness
functionality
- run_kselftest.sh:
- remove unused $ROOT
- resolve BASE_DIR with pwd -P to avoid dependency on realpath
or readlink commands to generate a physical absolute path for
BASE_DIR
- allow choosing per-test log directory
- preserve subtarget failures in all/install
* tag 'linux_kselftest-next-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ftrace: Quote check_requires comparisons
selftests: Preserve subtarget failures in all/install
selftests/run_kselftest.sh: Allow choosing per-test log directory
selftests/run_kselftest.sh: Resolve BASE_DIR with pwd -P
selftests/run_kselftest.sh: Remove unused $ROOT
selftests/cpu-hotplug: Fix check for cpu hotplug not supported
selftests/mqueue: Fix incorrectly named file
selftests: Use ktap helpers for runner.sh
selftests: harness: Validate intermixing of kselftest and harness functionality
selftests: harness: Detect illegal mixing of kselftest and harness functionality
selftests: kselftest: Add ksft_reset_state()
selftests: harness: Validate that explicit kselftest exitcodes are handled
selftests: kselftest: Treat xpass as successful result
selftests/tracing: Fix to check awk supports non POSIX strtonum()
selftests/tracing: Fix to make --logdir option work again
|
||
|
Linus Torvalds
|
6198c86a97 |
linux_kselftest-kunit-7.1-rc1
Fixes kunit tool to
-- terminate kernel under test on SIGINT when it catches SIGINT
to make sure the TTY isn't messed up and terminate the running
kernel.
-- recommend --raw_output=all when KTAP header isn't found in the kernel
output, it's useful to re-run the test with --raw_output=all to find
out the reasons why the test didn't complete.
-- skip stty when stdin is not a tty to avoid writing noise to stderr.
-- show suites when user runs --list_suites option instead of entire
list of tests to make the output user friendly and concise.
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Merge tag 'linux_kselftest-kunit-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit tool updates from Shuah Khan:
- terminate kernel under test on SIGINT when it catches SIGINT to make
sure the TTY isn't messed up and terminate the running kernel
- recommend --raw_output=all when KTAP header isn't found in the kernel
output, it's useful to re-run the test with --raw_output=all to find
out the reasons why the test didn't complete.
- skip stty when stdin is not a tty to avoid writing noise to stderr.
- show suites when user runs --list_suites option instead of entire
list of tests to make the output user friendly and concise.
* tag 'linux_kselftest-kunit-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: Terminate kernel under test on SIGINT
kunit: tool: skip stty when stdin is not a tty
kunit: tool: Recommend --raw_output=all if no KTAP found
kunit: Add --list_suites to show suites
|
||
|
Linus Torvalds
|
88b29f3f57 |
Modules changes for v7.1-rc1
Kernel symbol flags:
- Replace the separate *_gpl symbol sections (__ksymtab_gpl and
__kcrctab_gpl) with a unified symbol table and a new
__kflagstab section. This section stores symbol flags, such as
the GPL-only flag, as an 8-bit bitset for each exported symbol.
This is a cleanup that simplifies symbol lookup in the module
loader by avoiding table fragmentation and will allow a cleaner
way to add more flags later if needed.
Module signature UAPI:
- Move struct module_signature to the UAPI headers to allow reuse
by tools outside the kernel proper, such as kmod and
scripts/sign-file. This also renames a few constants for clarity
and drops unused signature types as preparation for hash-based
module integrity checking work that's in progress.
Sysfs:
- Add a /sys/module/<module>/import_ns sysfs attribute to show
the symbol namespaces imported by loaded modules. This makes it
easier to verify driver API access at runtime on systems that
care about such things (e.g. Android).
Cleanups and fixes:
- Force sh_addr to 0 for all sections in module.lds. This prevents
non-zero section addresses when linking modules with ld.bfd -r,
which confused elfutils.
- Fix a memory leak of charp module parameters on module unload
when the kernel is configured with CONFIG_SYSFS=n.
- Override the -EEXIST error code returned by module_init() to
userspace. This prevents confusion with the errno reserved by
the module loader to indicate that a module is already loaded.
- Simplify the warning message and drop the stack dump on positive
returns from module_init().
- Drop unnecessary extern keywords from function declarations and
synchronize parse_args() arguments with their implementation.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Merge tag 'modules-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull module updates from Sami Tolvanen:
"Kernel symbol flags:
- Replace the separate *_gpl symbol sections (__ksymtab_gpl and
__kcrctab_gpl) with a unified symbol table and a new __kflagstab
section.
This section stores symbol flags, such as the GPL-only flag, as an
8-bit bitset for each exported symbol. This is a cleanup that
simplifies symbol lookup in the module loader by avoiding table
fragmentation and will allow a cleaner way to add more flags later
if needed.
Module signature UAPI:
- Move struct module_signature to the UAPI headers to allow reuse by
tools outside the kernel proper, such as kmod and
scripts/sign-file.
This also renames a few constants for clarity and drops unused
signature types as preparation for hash-based module integrity
checking work that's in progress.
Sysfs:
- Add a /sys/module/<module>/import_ns sysfs attribute to show the
symbol namespaces imported by loaded modules.
This makes it easier to verify driver API access at runtime on
systems that care about such things (e.g. Android).
Cleanups and fixes:
- Force sh_addr to 0 for all sections in module.lds. This prevents
non-zero section addresses when linking modules with 'ld.bfd -r',
which confused elfutils.
- Fix a memory leak of charp module parameters on module unload when
the kernel is configured with CONFIG_SYSFS=n.
- Override the -EEXIST error code returned by module_init() to
userspace. This prevents confusion with the errno reserved by the
module loader to indicate that a module is already loaded.
- Simplify the warning message and drop the stack dump on positive
returns from module_init().
- Drop unnecessary extern keywords from function declarations and
synchronize parse_args() arguments with their implementation"
* tag 'modules-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: (23 commits)
module: Simplify warning on positive returns from module_init()
module: Override -EEXIST module return
documentation: remove references to *_gpl sections
module: remove *_gpl sections from vmlinux and modules
module: deprecate usage of *_gpl sections in module loader
module: use kflagstab instead of *_gpl sections
module: populate kflagstab in modpost
module: add kflagstab section to vmlinux and modules
module: define ksym_flags enumeration to represent kernel symbol flags
selftests/bpf: verify_pkcs7_sig: Use 'struct module_signature' from the UAPI headers
sign-file: use 'struct module_signature' from the UAPI headers
tools uapi headers: add linux/module_signature.h
module: Move 'struct module_signature' to UAPI
module: Give MODULE_SIG_STRING a more descriptive name
module: Give 'enum pkey_id_type' a more specific name
module: Drop unused signature types
extract-cert: drop unused definition of PKEY_ID_PKCS7
docs: symbol-namespaces: mention sysfs attribute
module: expose imported namespaces via sysfs
module: Remove extern keyword from param prototypes
...
|
||
|
Linus Torvalds
|
ee60c510fb |
nolibc changes for 7.1
Highlights: * Many new features and optimizations to printf(). * Rename non-standard symbols to avoid collisions with application code. * Support for byteswap.h, endian.h, err.h and asprintf(). * 64-bit dev_t. * Smaller cleanips and fixes to the code and build system. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTg4lxklFHAidmUs57B+h1jyw5bOAUCadvnagAKCRDB+h1jyw5b OPgLAQDlu6hdBZtzPzskzwcSQ2MFBQRuiOmHadksYIfvmxerZQD+LCf3xoO5a/vK Jg2K+90RvcerTbHuDqaQave1RPC0vAA= =LIjy -----END PGP SIGNATURE----- Merge tag 'nolibc-20260412-for-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc Pull nolibc updates from Thomas Weißschuh: - Many new features and optimizations to printf() - Rename non-standard symbols to avoid collisions with application code - Support for byteswap.h, endian.h, err.h and asprintf() - 64-bit dev_t - Smaller cleanups and fixes to the code and build system * tag 'nolibc-20260412-for-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (61 commits) selftests/nolibc: use gcc 15 tools/nolibc: support UBSAN on gcc tools/nolibc: create __nolibc_no_sanitize_ubsan selftests/nolibc: don't skip tests for unimplemented syscalls anymore selftests/nolibc: explicitly handle ENOSYS from ptrace() tools/nolibc: add byteorder conversions tools/nolibc: add the _syscall() macro tools/nolibc: move the call to __sysret() into syscall() tools/nolibc: rename the internal macros used in syscall() selftests/nolibc: only use libgcc when really necessary selftests/nolibc: test the memory allocator tools/nolibc: check for overflow in calloc() without divisions tools/nolibc: add support for asprintf() tools/nolibc: use __builtin_offsetof() tools/nolibc: use makedev() in fstatat() tools/nolibc: handle all major and minor numbers in makedev() and friends tools/nolibc: make dev_t 64 bits wide tools/nolibc: move the logic of makedev() and friends into functions selftests/nolibc: add a test for stat().st_rdev selftests/nolibc: add some tests for makedev() and friends ... |
||
|
Linus Torvalds
|
3203a08c12 |
powerpc updates for 7.1
- powerpc support for huge pfnmaps - Cleanups to use masked user access - Rework pnv_ioda_pick_m64_pe() to use better bitmap API - Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC - Backup region offset update to eflcorehdr - Fixes for wii/ps3 platform - Implement JIT support for private stack in powerpc - Implement JIT support for fsession in powerpc64 trampoline - Add support for instruction array and indirect jump in powerpc - Misc selftest fixes and cleanups Thanks to: Abhishek Dubey, Aditya Gupta, Alex Williamson, Amit Machhiwal, Andrew Donnellan, Bartosz Golaszewski, Cédric Le Goater, Chen Ni, Christophe Leroy (CS GROUP), Hari Bathini, J. Neuschäfer, Mukesh Kumar Chaurasiya (IBM), Nam Cao, Nilay Shroff, Pavithra Prakash, Randy Dunlap, Ritesh Harjani (IBM), Shrikanth Hegde, Sourabh Jain, Vaibhav Jain, Venkat Rao Bagalkote, Yury Norov (NVIDIA) -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEqX2DNAOgU8sBX3pRpnEsdPSHZJQFAmnc9bQACgkQpnEsdPSH ZJS0wg//TIma7bIPw0rFNnDWRHJq2YqXCSOKjU24gkYPD+T5lvuE4JtkYx1U7FOC yByjCwmWg0RMOlcDC0vtyqvcq8fZSc5VwrebjZaHtEcRFkcip5r57A1DkV1TLWF/ 3EXQzhOzh5Sf6+A7leg4hVhk0ZvCG/DFqKCW6s1uBBBALD2nv9oC9WLzdZeutiWm hC+f1pFbfr4ZAAcjeTTBLJPLa4ayWUbszseW2CX9B3Rf041fh4puAH709Wlf9gYz 7Gh7ZS/XhLYi5urH9bd7+0CTgDxeYI9D/0hBh1szXFHYB2N+1OdQNmMz0TfKlzsB byHGd9OW5EnfwKOFb9/wYQI6vODoZRSVB74oSHlJ7GoLe8FnNnBhqUaYuorJIYJF j8wuhOz/fdC8EWpol2lTsnQ+Lvo7N/YG7BIa2SiSTwpnOoZ2iQR3GeZcp4TCW8A/ ZUHEUuaM/zuNZxIZqxnM7wHBE+nGHjOcfRMZcZz1kwanw+Xyu0lDrTbn0O6h404R p0N/GG5Q8phVD/GQaXi3jt5/316D+SOTo4hhl7nyP1/UFvqH8YEEwXy2KnldBLKH C0S0pdmOx03fgjpG+Utkk2zYpz06KfYL58tiEaCFikoBRtQBfTFq7qyqNrgYRx1V 7h4lnjRqTLjyurBUAUPNZPHC6BY1inv3wJj1x5ooRbaPSDXw5VU= =P25l -----END PGP SIGNATURE----- Merge tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Madhavan Srinivasan: - powerpc support for huge pfnmaps - Cleanups to use masked user access - Rework pnv_ioda_pick_m64_pe() to use better bitmap API - Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC - Backup region offset update to eflcorehdr - Fixes for wii/ps3 platform - Implement JIT support for private stack in powerpc - Implement JIT support for fsession in powerpc64 trampoline - Add support for instruction array and indirect jump in powerpc - Misc selftest fixes and cleanups Thanks to Abhishek Dubey, Aditya Gupta, Alex Williamson, Amit Machhiwal, Andrew Donnellan, Bartosz Golaszewski, Cédric Le Goater, Chen Ni, Christophe Leroy (CS GROUP), Hari Bathini, J. Neuschäfer, Mukesh Kumar Chaurasiya (IBM), Nam Cao, Nilay Shroff, Pavithra Prakash, Randy Dunlap, Ritesh Harjani (IBM), Shrikanth Hegde, Sourabh Jain, Vaibhav Jain, Venkat Rao Bagalkote, and Yury Norov (NVIDIA) * tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (47 commits) mailmap: Add entry for Andrew Donnellan powerpc32/bpf: fix loading fsession func metadata using PPC_LI32 selftest/bpf: Enable gotox tests for powerpc64 powerpc64/bpf: Add support for indirect jump selftest/bpf: Enable instruction array test for powerpc powerpc/bpf: Add support for instruction array powerpc32/bpf: Add fsession support powerpc64/bpf: Implement fsession support selftests/bpf: Enable private stack tests for powerpc64 powerpc64/bpf: Implement JIT support for private stack powerpc: pci-ioda: Optimize pnv_ioda_pick_m64_pe() powerpc: pci-ioda: use bitmap_alloc() in pnv_ioda_pick_m64_pe() powerpc/net: Inline checksum wrappers and convert to scoped user access powerpc/sstep: Convert to scoped user access powerpc/align: Convert emulate_spe() to scoped user access powerpc/ptrace: Convert gpr32_set_common_user() to scoped user access powerpc/futex: Use masked user access powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC cpuidle: powerpc: avoid double clear when breaking snooze powerpc/ps3: spu.c: fix enum and Return kernel-doc warnings ... |
||
|
Linus Torvalds
|
c43267e679 |
arm64 updates for 7.1:
Core features:
- Add support for FEAT_LSUI, allowing futex atomic operations without
toggling Privileged Access Never (PAN)
- Further refactor the arm64 exception handling code towards the
generic entry infrastructure
- Optimise __READ_ONCE() with CONFIG_LTO=y and allow alias analysis
through it
Memory management:
- Refactor the arm64 TLB invalidation API and implementation for better
control over barrier placement and level-hinted invalidation
- Enable batched TLB flushes during memory hot-unplug
- Fix rodata=full block mapping support for realm guests (when
BBML2_NOABORT is available)
Perf and PMU:
- Add support for a whole bunch of system PMUs featured in NVIDIA's
Tegra410 SoC (cspmu extensions for the fabric and PCIe, new drivers
for CPU/C2C memory latency PMUs)
- Clean up iomem resource handling in the Arm CMN driver
- Fix signedness handling of AA64DFR0.{PMUVer,PerfMon}
MPAM (Memory Partitioning And Monitoring):
- Add architecture context-switch and hiding of the feature from KVM
- Add interface to allow MPAM to be exposed to user-space using resctrl
- Add errata workaround for some existing platforms
- Add documentation for using MPAM and what shape of platforms can use
resctrl
Miscellaneous:
- Check DAIF (and PMR, where relevant) at task-switch time
- Skip TFSR_EL1 checks and barriers in synchronous MTE tag check mode
(only relevant to asynchronous or asymmetric tag check modes)
- Remove a duplicate allocation in the kexec code
- Remove redundant save/restore of SCS SP on entry to/from EL0
- Generate the KERNEL_HWCAP_ definitions from the arm64 hwcap
descriptions
- Add kselftest coverage for cmpbr_sigill()
- Update sysreg definitions
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The biggest changes are MPAM enablement in drivers/resctrl and new PMU
support under drivers/perf.
On the core side, FEAT_LSUI lets futex atomic operations with EL0
permissions, avoiding PAN toggling.
The rest is mostly TLB invalidation refactoring, further generic entry
work, sysreg updates and a few fixes.
Core features:
- Add support for FEAT_LSUI, allowing futex atomic operations without
toggling Privileged Access Never (PAN)
- Further refactor the arm64 exception handling code towards the
generic entry infrastructure
- Optimise __READ_ONCE() with CONFIG_LTO=y and allow alias analysis
through it
Memory management:
- Refactor the arm64 TLB invalidation API and implementation for
better control over barrier placement and level-hinted invalidation
- Enable batched TLB flushes during memory hot-unplug
- Fix rodata=full block mapping support for realm guests (when
BBML2_NOABORT is available)
Perf and PMU:
- Add support for a whole bunch of system PMUs featured in NVIDIA's
Tegra410 SoC (cspmu extensions for the fabric and PCIe, new drivers
for CPU/C2C memory latency PMUs)
- Clean up iomem resource handling in the Arm CMN driver
- Fix signedness handling of AA64DFR0.{PMUVer,PerfMon}
MPAM (Memory Partitioning And Monitoring):
- Add architecture context-switch and hiding of the feature from KVM
- Add interface to allow MPAM to be exposed to user-space using
resctrl
- Add errata workaround for some existing platforms
- Add documentation for using MPAM and what shape of platforms can
use resctrl
Miscellaneous:
- Check DAIF (and PMR, where relevant) at task-switch time
- Skip TFSR_EL1 checks and barriers in synchronous MTE tag check mode
(only relevant to asynchronous or asymmetric tag check modes)
- Remove a duplicate allocation in the kexec code
- Remove redundant save/restore of SCS SP on entry to/from EL0
- Generate the KERNEL_HWCAP_ definitions from the arm64 hwcap
descriptions
- Add kselftest coverage for cmpbr_sigill()
- Update sysreg definitions"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (109 commits)
arm64: rsi: use linear-map alias for realm config buffer
arm64: Kconfig: fix duplicate word in CMDLINE help text
arm64: mte: Skip TFSR_EL1 checks and barriers in synchronous tag check mode
arm64/sysreg: Update ID_AA64SMFR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64ZFR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64FPFR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64ISAR2_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64ISAR0_EL1 description to DDI0601 2025-12
arm64/hwcap: Generate the KERNEL_HWCAP_ definitions for the hwcaps
arm64: kexec: Remove duplicate allocation for trans_pgd
ACPI: AGDI: fix missing newline in error message
arm64: Check DAIF (and PMR) at task-switch time
arm64: entry: Use split preemption logic
arm64: entry: Use irqentry_{enter_from,exit_to}_kernel_mode()
arm64: entry: Consistently prefix arm64-specific wrappers
arm64: entry: Don't preempt with SError or Debug masked
entry: Split preemption from irqentry_exit_to_kernel_mode()
entry: Split kernel mode logic from irqentry_{enter,exit}()
entry: Move irqentry_enter() prototype later
entry: Remove local_irq_{enable,disable}_exit_to_user()
...
|
||
|
Linus Torvalds
|
9f2bb6c7b3 |
- Complete LASS enabling: deal with vsyscall and EFI
- Clean up CPUID usage in newer Intel audio driver -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEV76QKkVc4xCGURexaDWVMHDJkrAFAmndDsMACgkQaDWVMHDJ krAOhRAAi3BsToTbmKayQJKWwVr5aGbLYXe3FiBv5juPprsJDF4otd0ALkdbf5Ls n7nND4L9RBfcGZBu25vo60Y1I1b2JReu9Y8YXxsrEx+WIxTPYClOJa7AqakyNxc4 zbTCTv6TuEyXqG5VWe3AItWrMToc49TvUVoN2fi+V89fLWA8IOkMoIhbAWwQPBFI ir0N4UwC/RtRBFf9qc9jesirqGSgh6SEAK6oBYM3C2PV/njoKljTconaCnF7uJlq WxxVcb07dIvOdpdE941OZ6jyS6eePr2feXOazNjnPb0py5Ai4WCsEGdK68ltQ5fM EhY24Ex6ltudgphB/cajKIKZ8LUCWgnMwTotY8IQMQiQ47JKmyrucdLUwvhl0qTD IAWiOMvb5d3X+CoKt3lXlzc29WhbogXzvxjZE29ad8Dm7DVBEOV57bXDwhnHb7LS rro7odiohsw7FMhfqxlb6NhYzCbdpBbmY3IFzXVgTZlWIXU1g/yBVz/2O0qsKLaw QQ2NKre6lioP2H3pWc0fi53336svzCSuuExCiu47Hx9WcYBX1Poq/AkpAoxPErq+ DRn8lXVwqMpefevlHK9XlZjSpwwwltULmId3LFxh3Z53b1NABrKpVEEJ/VChpzzA xC8dLdu1pbJa2jdccL6mBDYlMvyWLCmKfAlAHdRh8nLmOZxKRHg= =kPr7 -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpu updates from Dave Hansen: - Complete LASS enabling: deal with vsyscall and EFI The existing Linear Address Space Separation (LASS) support punted on support for common EFI and vsyscall configs. Complete the implementation by supporting EFI and vsyscall=xonly. - Clean up CPUID usage in newer Intel "avs" audio driver and update the x86-cpuid-db file * tag 'x86_cpu_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.0 ASoC: Intel: avs: Include CPUID header at file scope ASoC: Intel: avs: Check maximum valid CPUID leaf x86/cpu: Remove LASS restriction on vsyscall emulation x86/vsyscall: Disable LASS if vsyscall mode is set to EMULATE x86/vsyscall: Restore vsyscall=xonly mode under LASS x86/traps: Consolidate user fixups in the #GP handler x86/vsyscall: Reorganize the page fault emulation code x86/cpu: Remove LASS restriction on EFI x86/efi: Disable LASS while executing runtime services x86/cpu: Defer LASS enabling until userspace comes up |
||
|
Linus Torvalds
|
33c66eb5e9 |
Performance events changes for v7.1:
Core updates:
- Try to allocate task_ctx_data quickly, to optimize
O(N^2) algorithm on large systems with O(100k) threads
(Namhyung Kim)
AMD PMU driver IBS support updates and fixes, by Ravi Bangoria:
- Fix interrupt accounting for discarded samples
- Fix a Zen5-specific quirk
- Fix PhyAddrVal handling
- Fix NMI-safety with perf_allow_kernel()
- Fix a race between event add and NMIs
Intel PMU driver updates:
- Only check GP counters for PEBS constraints validation (Dapeng Mi)
MSR driver:
- Turn SMI_COUNT and PPERF on by default, instead of a long
list of CPU models to enable them on (Kan Liang)
Misc cleanups and fixes by Aldf Conte, Anshuman Khandual, Namhyung Kim,
Ravi Bangoria and Yen-Hsiang Hsu.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Core updates:
- Try to allocate task_ctx_data quickly, to optimize O(N^2) algorithm
on large systems with O(100k) threads (Namhyung Kim)
AMD PMU driver IBS support updates and fixes, by Ravi Bangoria:
- Fix interrupt accounting for discarded samples
- Fix a Zen5-specific quirk
- Fix PhyAddrVal handling
- Fix NMI-safety with perf_allow_kernel()
- Fix a race between event add and NMIs
Intel PMU driver updates:
- Only check GP counters for PEBS constraints validation (Dapeng Mi)
MSR driver:
- Turn SMI_COUNT and PPERF on by default, instead of a long list of
CPU models to enable them on (Kan Liang)
... and misc cleanups and fixes by Aldf Conte, Anshuman Khandual,
Namhyung Kim, Ravi Bangoria and Yen-Hsiang Hsu"
* tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/events: Replace READ_ONCE() with standard pgtable accessors
perf/x86/msr: Make SMI and PPERF on by default
perf/x86/intel/p4: Fix unused variable warning in p4_pmu_init()
perf/x86/intel: Only check GP counters for PEBS constraints validation
perf/x86/amd/ibs: Fix comment typo in ibs_op_data
perf/amd/ibs: Advertise remote socket capability
perf/amd/ibs: Enable streaming store filter
perf/amd/ibs: Enable RIP bit63 hardware filtering
perf/amd/ibs: Enable fetch latency filtering
perf/amd/ibs: Support IBS_{FETCH|OP}_CTL2[Dis] to eliminate RMW race
perf/amd/ibs: Add new MSRs and CPUID bits definitions
perf/amd/ibs: Define macro for ldlat mask and shift
perf/amd/ibs: Avoid race between event add and NMI
perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler
perf/amd/ibs: Preserve PhyAddrVal bit when clearing PhyAddr MSR
perf/amd/ibs: Limit ldlat->l3missonly dependency to Zen5
perf/amd/ibs: Account interrupt for discarded samples
perf/core: Simplify __detach_global_ctx_data()
perf/core: Try to allocate task_ctx_data quickly
perf/core: Pass GFP flags to attach_task_ctx_data()
|
||
|
Linus Torvalds
|
4b2bdc2221 |
objtool updates for v7.1:
- KLP support updates and fixes (Song Liu)
- KLP-build script updates and fixes (Joe Lawrence)
- Support Clang RAX DRAP sequence, to address clang
false positive (Josh Poimboeuf)
- Reorder ORC register numbering to match regular x86
register numbering (Josh Poimboeuf)
- Misc cleanups (Wentong Tian, Song Liu)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- KLP support updates and fixes (Song Liu)
- KLP-build script updates and fixes (Joe Lawrence)
- Support Clang RAX DRAP sequence, to address clang false positive
(Josh Poimboeuf)
- Reorder ORC register numbering to match regular x86 register
numbering (Josh Poimboeuf)
- Misc cleanups (Wentong Tian, Song Liu)
* tag 'objtool-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool/x86: Reorder ORC register numbering
objtool: Support Clang RAX DRAP sequence
livepatch/klp-build: report patch validation fuzz
livepatch/klp-build: add terminal color output
livepatch/klp-build: provide friendlier error messages
livepatch/klp-build: improve short-circuit validation
livepatch/klp-build: fix shellcheck complaints
livepatch/klp-build: add Makefile with check target
livepatch/klp-build: add grep-override function
livepatch/klp-build: switch to GNU patch and recountdiff
livepatch/klp-build: support patches that add/remove files
objtool/klp: Correlate locals to globals
objtool/klp: Match symbols based on demangled_name for global variables
objtool/klp: Remove .llvm suffix in demangle_name()
objtool/klp: Also demangle global objects
objtool/klp: Use sym->demangled_name for symbol_name hash
objtool/klp: Remove trailing '_' in demangle_name()
objtool/klp: Remove redundant strcmp() in correlate_symbols()
objtool: Use section/symbol type helpers
|
||
|
Jakub Kicinski
|
35c2c39832 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in late fixes in preparation for the net-next PR. Conflicts: include/net/sch_generic.h |
||
|
Asbjørn Sloth Tønnesen
|
121f416756 |
tools: ynl: add sample for wireguard
Add a sample application for WireGuard, using the generated C library.
The main benefit of this is to exercise the generated library,
which might be useful for future self-tests.
Example:
$ make -C tools/net/ynl/lib
$ make -C tools/net/ynl/generated
$ make -C tools/net/ynl/tests wireguard
$ ./tools/net/ynl/tests/wireguard
usage: ./tools/net/ynl/tests/wireguard <ifindex|ifname>
$ sudo ./tools/net/ynl/tests/wireguard wg-test
Interface 3: wg-test
Peer 6adfb183a4a2c94a2f92dab5ade762a4788[...]:
Data: rx: 42 / tx: 42 bytes
Allowed IPs:
0.0.0.0/0
::/0
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://patch.msgid.link/20260414153944.2742252-3-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Linus Torvalds
|
f21f7b5162 |
Update to the VDSO subsystem:
- Make the handling of compat functions consistent and more robust
- Rework the underlying data store so that it is dynamically
allocated, which allows the conversion of the last holdout SPARC64
to the generic VDSO implementation
- Rework the SPARC64 VDSO to utilize the generic implementation
- Mop up the left overs of the non-generic VDSO support in the core
code.
- Expand the VDSO selftest and make them more robust
- Allow time namespaces to be enabled independently of the generic
VDSO support, which was not possible before due to SPARC64 not
using it.
- Various cleanups and improvements in the related code.
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Merge tag 'timers-vdso-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull vdso updates from Thomas Gleixner:
- Make the handling of compat functions consistent and more robust
- Rework the underlying data store so that it is dynamically allocated,
which allows the conversion of the last holdout SPARC64 to the
generic VDSO implementation
- Rework the SPARC64 VDSO to utilize the generic implementation
- Mop up the left overs of the non-generic VDSO support in the core
code
- Expand the VDSO selftest and make them more robust
- Allow time namespaces to be enabled independently of the generic VDSO
support, which was not possible before due to SPARC64 not using it
- Various cleanups and improvements in the related code
* tag 'timers-vdso-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
timens: Use task_lock guard in timens_get*()
timens: Use mutex guard in proc_timens_set_offset()
timens: Simplify some calls to put_time_ns()
timens: Add a __free() wrapper for put_time_ns()
timens: Remove dependency on the vDSO
vdso/timens: Move functions to new file
selftests: vDSO: vdso_test_correctness: Add a test for time()
selftests: vDSO: vdso_test_correctness: Use facilities from parse_vdso.c
selftests: vDSO: vdso_test_correctness: Handle different tv_usec types
selftests: vDSO: vdso_test_correctness: Drop SYS_getcpu fallbacks
selftests: vDSO: vdso_test_gettimeofday: Remove nolibc checks
Revert "selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers"
random: vDSO: Remove ifdeffery
random: vDSO: Trim vDSO includes
vdso/datapage: Trim down unnecessary includes
vdso/datapage: Remove inclusion of gettimeofday.h
vdso/helpers: Explicitly include vdso/processor.h
vdso/gettimeofday: Add explicit includes
random: vDSO: Add explicit includes
MIPS: vdso: Explicitly include asm/vdso/vdso.h
...
|
||
|
Linus Torvalds
|
5d0d362330 |
Kbuild/Kconfig updates for 7.1
Kbuild changes
==============
* tools/build: Reject unexpected values for LLVM=
* kbuild: uapi: remove usage of toolchain headers
* kbuild: Switch from '-fms-extensions' to '-fms-anonymous-structs'
when available (currently: clang >= 23.0.0)
* kbuild: Reduce the number of compiler-generated suffixes for clang
thin-lto build
* kbuild: reduce output spam ("GEN Makefile") when building out of tree
* check-uapi: improve portability for testing headers
* uapi: also test UAPI headers against C++ compilers
* kbuild: vdso_install: drop build ID architecture allow-list
* checksyscalls: only run when necessary
* Documentation: kbuild: Update the debug information notes in
reproducible-builds.rst
* kconfig: forbid multiple entries with the same symbol in a choice
* kbuild: expand inlining hints with -fdiagnostics-show-inlining-chain
Kconfig changes
===============
* kconfig: Error out on duplicated kconfig inclusion
Cc: Alexander Coffin <alex@cyberialabs.net>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bill Wendling <morbo@google.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Dodji Seketeli <dodji@seketeli.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Helge Deller <deller@gmx.de>
Cc: John Moon <john@jmoon.dev>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Song Liu <song@kernel.org>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Cc: Yonghong Song <yonghong.song@linux.dev>
Cc: kernel-team@fb.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-efi@vger.kernel.org
Cc: linux-hexagon@vger.kernel.org
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: llvm@lists.linux.dev
Cc: loongarch@lists.linux.dev
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Merge tag 'kbuild-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild/Kconfig updates from Nicolas Schier:
"Kbuild:
- reject unexpected values for LLVM=
- uapi: remove usage of toolchain headers
- switch from '-fms-extensions' to '-fms-anonymous-structs' when
available (currently: clang >= 23.0.0)
- reduce the number of compiler-generated suffixes for clang thin-lto
build
- reduce output spam ("GEN Makefile") when building out of tree
- improve portability for testing headers
- also test UAPI headers against C++ compilers
- drop build ID architecture allow-list in vdso_install
- only run checksyscalls when necessary
- update the debug information notes in reproducible-builds.rst
- expand inlining hints with -fdiagnostics-show-inlining-chain
Kconfig:
- forbid multiple entries with the same symbol in a choice
- error out on duplicated kconfig inclusion"
* tag 'kbuild-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (35 commits)
kbuild: expand inlining hints with -fdiagnostics-show-inlining-chain
kconfig: forbid multiple entries with the same symbol in a choice
Documentation: kbuild: Update the debug information notes in reproducible-builds.rst
checksyscalls: move instance functionality into generic code
checksyscalls: only run when necessary
checksyscalls: fail on all intermediate errors
checksyscalls: move path to reference table to a variable
kbuild: vdso_install: drop build ID architecture allow-list
kbuild: vdso_install: gracefully handle images without build ID
kbuild: vdso_install: hide readelf warnings
kbuild: vdso_install: split out the readelf invocation
kbuild: uapi: also test UAPI headers against C++ compilers
kbuild: uapi: provide a C++ compatible dummy definition of NULL
kbuild: uapi: handle UML in architecture-specific exclusion lists
kbuild: uapi: move all include path flags together
kbuild: uapi: move some compiler arguments out of the command definition
check-uapi: use dummy libc includes
check-uapi: honor ${CROSS_COMPILE} setting
check-uapi: link into shared objects
kbuild: reduce output spam when building out of tree
...
|
||
|
Linus Torvalds
|
5181afcdf9 |
A busier cycle than I had expected for docs, including:
- Translations: some overdue updates to the Japanese translations, Chinese
translations for some of the Rust documentation, and the beginnings of a
Portuguese translation.
- New documents covering CPU isolation, managed interrupts, debugging
Python gbb scripts, and more.
- More tooling work from Mauro, reducing docs-build warnings, adding self
tests, improving man-page output, bringing in a proper C tokenizer to
replace (some of) the mess of kernel-doc regexes, and more.
- Update and synchronize changes.rst and scripts/ver_linux, and put both
into alphabetical order.
...and a long list of documentation updates, typo fixes, and general
improvements.
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Merge tag 'docs-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux
Pull documentation updates from Jonathan Corbet:
"A busier cycle than I had expected for docs, including:
- Translations: some overdue updates to the Japanese translations,
Chinese translations for some of the Rust documentation, and the
beginnings of a Portuguese translation.
- New documents covering CPU isolation, managed interrupts, debugging
Python gbb scripts, and more.
- More tooling work from Mauro, reducing docs-build warnings, adding
self tests, improving man-page output, bringing in a proper C
tokenizer to replace (some of) the mess of kernel-doc regexes, and
more.
- Update and synchronize changes.rst and scripts/ver_linux, and put
both into alphabetical order.
... and a long list of documentation updates, typo fixes, and general
improvements"
* tag 'docs-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (162 commits)
Documentation: core-api: real-time: correct spelling
doc: Add CPU Isolation documentation
Documentation: Add managed interrupts
Documentation: seq_file: drop 2.6 reference
docs/zh_CN: update rust/index.rst translation
docs/zh_CN: update rust/quick-start.rst translation
docs/zh_CN: update rust/coding-guidelines.rst translation
docs/zh_CN: update rust/arch-support.rst translation
docs/zh_CN: sync process/2.Process.rst with English version
docs/zh_CN: fix an inconsistent statement in dev-tools/testing-overview
tracing: Documentation: Update histogram-design.rst for fn() handling
docs: sysctl: Add documentation for /proc/sys/xen/
Docs: hid: intel-ish-hid: make long URL usable
Documentation/kernel-parameters: fix architecture alignment for pt, nopt, and nobypass
sched/doc: Update yield_task description in sched-design-CFS
Documentation/rtla: Convert links to RST format
docs: fix typos and duplicated words across documentation
docs: fix typo in zoran driver documentation
docs: add an Assisted-by mention to submitting-patches.rst
Revert "scripts/checkpatch: add Assisted-by: tag validation"
...
|
||
|
Daniel Borkmann
|
1e822171ba |
selftests/net: Add additional test coverage in nk_qlease
Add further netkit queue-lease coverage for netns lifecycle of the guest and physical halves, channel resize across active leases, single-device and multi-lessee scenarios, L3 mode operation, lease capacity exhaustion, and corner-cases of e.g. queue-create rejection paths. Also make the tests more robust by removing the time.sleep(0.1) after netns deletion and turn them into a wait loop. Full test run: # ./nk_qlease.py TAP version 13 1..45 ok 1 nk_qlease.test_remove_phys ok 2 nk_qlease.test_double_lease ok 3 nk_qlease.test_virtual_lessor ok 4 nk_qlease.test_phys_lessee ok 5 nk_qlease.test_different_lessors ok 6 nk_qlease.test_queue_out_of_range ok 7 nk_qlease.test_resize_leased ok 8 nk_qlease.test_self_lease ok 9 nk_qlease.test_create_tx_type ok 10 nk_qlease.test_create_primary ok 11 nk_qlease.test_create_limit ok 12 nk_qlease.test_link_flap_phys ok 13 nk_qlease.test_queue_get_virtual ok 14 nk_qlease.test_remove_virt_first ok 15 nk_qlease.test_multiple_leases ok 16 nk_qlease.test_lease_queue_tx_type ok 17 nk_qlease.test_invalid_netns ok 18 nk_qlease.test_invalid_phys_ifindex ok 19 nk_qlease.test_multi_netkit_remove_phys ok 20 nk_qlease.test_single_remove_phys ok 21 nk_qlease.test_link_flap_virt ok 22 nk_qlease.test_phys_queue_no_lease ok 23 nk_qlease.test_same_ns_lease ok 24 nk_qlease.test_resize_after_unlease ok 25 nk_qlease.test_lease_queue_zero ok 26 nk_qlease.test_release_and_reuse ok 27 nk_qlease.test_veth_queue_create ok 28 nk_qlease.test_two_netkits_same_queue ok 29 nk_qlease.test_l3_mode_lease ok 30 nk_qlease.test_single_double_lease ok 31 nk_qlease.test_single_different_lessors ok 32 nk_qlease.test_cross_ns_netns_id ok 33 nk_qlease.test_delete_guest_netns ok 34 nk_qlease.test_move_guest_netns ok 35 nk_qlease.test_resize_phys_no_reduction ok 36 nk_qlease.test_delete_one_netkit_of_two ok 37 nk_qlease.test_bind_rx_leased_phys_queue ok 38 nk_qlease.test_resize_phys_shrink_past_leased ok 39 nk_qlease.test_resize_virt_not_supported ok 40 nk_qlease.test_lease_devices_down ok 41 nk_qlease.test_lease_capacity_exhaustion ok 42 nk_qlease.test_resize_phys_up ok 43 nk_qlease.test_multi_ns_lease ok 44 nk_qlease.test_multi_ns_delete_one ok 45 nk_qlease.test_move_phys_netns # Totals: pass:45 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20260413220809.604592-4-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Daniel Borkmann
|
e254ffb950 |
selftests/net: Split netdevsim tests from HW tests in nk_qlease
As pointed out in |
||
|
Daniel Borkmann
|
4a6fe5fe60 |
tools/ynl: Make YnlFamily closeable as a context manager
YnlFamily opens an AF_NETLINK socket in __init__ but has no way to release it other than leaving it to the GC. YnlFamily holds a self reference cycle through SpecFamily's self.family = self in its super().__init__() call, so refcount GC cannot reclaim it and the socket stays open until the cyclic GC runs. If a test creates a guest netns, instantiates a YnlFamily inside it via NetNSEnter(), performs some test case work via Ynl, and then deletes the netns, then the 'ip netns del' only drops the mount binding and cleanup_net in the kernel never runs, so any subsequent test case assertions that objects got cleaned up would fail given this only gets triggered later via cyclic GC run. Add an explicit close() that closes the netlink socket and wire up the __enter__/__exit__ so callers can scope the instance deterministically via 'with YnlFamily(...) as ynl: ...'. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20260413220809.604592-2-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Tom Zanussi
|
621a59d8fc |
selftests/ftrace: Add test case for fully-qualified variable references
This test adds a variable (ts0) to two events (sched_waking and sched_wakeup) and uses a fully-qualified variable reference to expicitly choose a particular one (sched_wakeup.$ts0) when calculating the wakeup latency. Link: https://patch.msgid.link/ce9d96aeb84b2d40bd469fe9a346e225442873b1.1776112478.git.zanussi@kernel.org Signed-off-by: Tom Zanussi <zanussi@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
||
|
Jiayuan Chen
|
8dd1bdde38 |
selftests/bpf: add test for xdp_master_redirect with bond not up
Add a selftest that reproduces the null-ptr-deref in bond_rr_gen_slave_id() when XDP redirect targets a bond device in round-robin mode that was never brought up. The test verifies the fix by ensuring no crash occurs. Test setup: - bond0: active-backup mode, UP, with native XDP (enables bpf_master_redirect_enabled_key globally) - bond1: round-robin mode, never UP - veth1: slave of bond1, with generic XDP (XDP_TX) - BPF_PROG_TEST_RUN with live frames triggers the redirect path Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev> Link: https://patch.msgid.link/20260411005524.201200-3-jiayuan.chen@linux.dev Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
WANG Rui
|
841dbf4871 |
perf loongarch: Fix build failure with CONFIG_LIBDW_DWARF_UNWIND
Building perf for LoongArch fails when CONFIG_LIBDW_DWARF_UNWIND is
enabled because unwind-libdw.o is still referenced in
arch/loongarch/util/Build.
Fixes:
|
||
|
Christian Brauner
|
cad3bf1c33
|
selftests/namespaces: remove unused utils.h include from listns_efault_test
Remove the inclusion of ../filesystems/utils.h from listns_efault_test.c.
The test doesn't use any symbols from that header. Including it alongside
../pidfd/pidfd.h causes a build failure because both headers define
wait_for_pid() with conflicting linkage:
../filesystems/utils.h: extern int wait_for_pid(pid_t pid);
../pidfd/pidfd.h: static inline int wait_for_pid(pid_t pid)
All symbols the test actually uses (create_child, read_nointr,
write_nointr, sys_pidfd_send_signal) come from pidfd.h.
Reported-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/all/acPV19IY3Gna6Ira@sirena.org.uk
Fixes:
|
||
|
Christian Brauner
|
660c09404c
|
selftests/fsmount_ns: add missing TARGETS and fix cap test
Add missing top-level kselftest TARGETS entries for empty_mntns and
fsmount_ns so that 'make kselftest' discovers and runs these tests.
Fix requires_cap_sys_admin test which always SKIPped because fsopen()
was called after enter_userns(), where CAP_SYS_ADMIN in the mount
namespace's user_ns is unavailable. Move fsopen/fsconfig before fork so
the configured fs_fd is inherited by the child, which then only needs to
call fsmount() after dropping privileges.
Fixes:
|
||
|
Christian Brauner
|
d38aa6cdee
|
selftests/empty_mntns: fix wrong CLONE_EMPTY_MNTNS hex value in comment
CLONE_EMPTY_MNTNS is (1ULL << 37) = 0x2000000000ULL, not 0x400000000ULL.
Fixes:
|
||
|
Christian Brauner
|
1a398a2378
|
selftests/empty_mntns: fix statmount_alloc() signature mismatch
empty_mntns.h includes ../statmount/statmount.h which provides a
4-argument statmount_alloc(mnt_id, mnt_ns_id, mask, flags), but then
redefines its own 3-argument version without the flags parameter. This
causes a build failure due to conflicting types.
Remove the duplicate definition from empty_mntns.h and update all
callers to pass 0 for the flags argument.
Fixes:
|
||
|
Christian Brauner
|
a27e464262
|
selftests/statmount: remove duplicate wait_for_pid()
Remove the local static wait_for_pid() definition from
statmount_test_ns.c as it conflicts with the extern declaration in
utils.h. The identical function is already provided by utils.c.
Fixes:
|
||
|
Rong Bao
|
a355eefc36 |
perf annotate: Use jump__delete when freeing LoongArch jumps
Currently, the initialization of loongarch_jump_ops does not contain an
assignment to its .free field. This causes disasm_line__free() to fall
through to ins_ops__delete() for LoongArch jump instructions.
ins_ops__delete() will free ins_operands.source.raw and
ins_operands.source.name, and these fields overlaps with
ins_operands.jump.raw_comment and ins_operands.jump.raw_func_start.
Since in loongarch_jump__parse(), these two fields are populated by
strchr()-ing the same buffer, trying to free them will lead to undefined
behavior.
This invalid free usually leads to crashes:
Process 1712902 (perf) of user 1000 dumped core.
Stack trace of thread 1712902:
#0 0x00007fffef155c58 n/a (libc.so.6 + 0x95c58)
#1 0x00007fffef0f7a94 raise (libc.so.6 + 0x37a94)
#2 0x00007fffef0dd6a8 abort (libc.so.6 + 0x1d6a8)
#3 0x00007fffef145490 n/a (libc.so.6 + 0x85490)
#4 0x00007fffef1646f4 n/a (libc.so.6 + 0xa46f4)
#5 0x00007fffef164718 n/a (libc.so.6 + 0xa4718)
#6 0x00005555583a6764 __zfree (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x106764)
#7 0x000055555854fb70 disasm_line__free (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x2afb70)
#8 0x000055555853d618 annotated_source__purge (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x29d618)
#9 0x000055555852300c __hist_entry__tui_annotate (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x28300c)
#10 0x0000555558526718 do_annotate (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x286718)
#11 0x000055555852ed94 evsel__hists_browse (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x28ed94)
#12 0x000055555831fdd0 cmd_report (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x7fdd0)
#13 0x000055555839b644 handle_internal_command (/home/csmantle/dist/linux-arch/tools/perf/perf + 0xfb644)
#14 0x00005555582fe6ac main (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x5e6ac)
#15 0x00007fffef0ddd90 n/a (libc.so.6 + 0x1dd90)
#16 0x00007fffef0ddf0c __libc_start_main (libc.so.6 + 0x1df0c)
#17 0x00005555582fed10 _start (/home/csmantle/dist/linux-arch/tools/perf/perf + 0x5ed10)
ELF object binary architecture: LoongArch
... and it can be confirmed with Valgrind:
==1721834== Invalid free() / delete / delete[] / realloc()
==1721834== at 0x4EA9014: free (in /usr/lib/valgrind/vgpreload_memcheck-loongarch64-linux.so)
==1721834== by 0x4106287: __zfree (zalloc.c:13)
==1721834== by 0x42ADC8F: disasm_line__free (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x429B737: annotated_source__purge (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x42811EB: __hist_entry__tui_annotate (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x42848D7: do_annotate (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x428CF33: evsel__hists_browse (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== Address 0x7d34303 is 35 bytes inside a block of size 62 alloc'd
==1721834== at 0x4EA59B8: malloc (in /usr/lib/valgrind/vgpreload_memcheck-loongarch64-linux.so)
==1721834== by 0x6B80B6F: strdup (strdup.c:42)
==1721834== by 0x42AD917: disasm_line__new (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x42AE5A3: symbol__disassemble_objdump (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x42AF0A7: symbol__disassemble (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x429B3CF: symbol__annotate (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x429C233: symbol__annotate2 (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x42804D3: __hist_entry__tui_annotate (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x42848D7: do_annotate (in /home/csmantle/dist/linux-arch/tools/perf/perf)
==1721834== by 0x428CF33: evsel__hists_browse (in /home/csmantle/dist/linux-arch/tools/perf/perf)
This patch adds the missing free() specialization in loongarch_jump_ops,
which prevents disasm_line__free() from invoking the default cleanup
function.
Fixes:
|
||
|
Ian Rogers
|
86d1095fdb |
perf test: Fixes for check branch stack sampling
When filtering branch stack samples on user events they sample in user land but may have come from the kernel. Aarch64 avoids leaking the kernel address for kaslr reasons but other platforms, for now, don't. Be more permissive in allowing kernel addresses in the source of user branch stacks. When filtering branch stack samples on kernel events they sample in kernel land but may have come from user land. Avoid the target being a user address but allow the source to be in user land. Aarch64 may not leak the user land addresses (making them 0) but other platforms do. As the kernel address sampling implies privelege, just allow this. Increase the duration of the system call sampling test to make the likelihood of sampling a system call higher (increased from 1000 to 8000 loops - a number found through experimentation on an Intel Tigerlake laptop), also make the period of the event a prime number. Put unneeded perf record output into a temporary file so that the test output isn't cluttered. More clearly state which test is running and the pass, fail or skipped result of the test. These changes make the test on an Intel tigerlake laptop reliably pass rather than reliably fail. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: James Clark <james.clark@linaro.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Ian Rogers
|
c7fe4e5665 |
perf test: Fix inet_pton probe failure and unroll call graph
When adding a probe for libc's inet_pton, perf probe may create multiple probe points (e.g., due to inlining or multiple symbol resolutions), resulting in multiple identical event names being output (e.g., `probe_libc:inet_pton_1`). The script previously used a brittle pipeline (`tail -n +2 | head -n -5`) and an awk script to extract the event name. When multiple probes were added, awk would output the event name multiple times, which expanded to multiple words in bash. This broke the subsequent `perf record` and `perf probe -d` commands, causing the test to fail with: `Error: another command except --add is set.` Fix this by removing the brittle `tail/head` commands and appending `| head -n 1` to the awk extraction. This ensures that only a single, unique event name is captured, regardless of how many probe points are created. Additionally, the test artificially limited the backtrace size via `max-stack=4` and did not specify dwarf call graphs for non-s390x architectures. In newer libc versions where `inet_pton` is nested deeper or compiled without frame pointers, `perf script` failed to resolve the backtrace up to `/bin/ping`. Fix this by explicitly collecting dwarf call-graphs for all architectures and increasing `max-stack` to 8. Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Markus Mayer
|
97ab89686a |
perf build: fix "argument list too long" in second location
Turns out that displaying "RM $^" via quiet_cmd_rm can also upset the shell and cause it to display "argument list too long". Trying to quote $^ doesn't help. In the end, *not* displaying the (potentially long) list of files is probably the right thing to do for a "quiet" message, anyway. Instead, let's display a count of how many files were removed. There is always V=1 if more detail is required. TEST linux/tools/perf/pmu-events/metric_test.log RM ...634 orphan file(s)... LD linux/tools/perf/util/perf-util-in.o Also move the comment regarding xargs before the rule, so it doesn't show up in the build output. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Reviewed-by: James Clark <james.clark@linaro.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
dff56bdafa |
perf header: Add sanity checks to HEADER_BPF_BTF processing
Validate the BTF entry count and individual data sizes when reading HEADER_BPF_BTF from perf.data files to prevent excessive memory allocation from malformed files. Reuses the MAX_BPF_PROGS (131072) and MAX_BPF_DATA_LEN (256 MB) limits from HEADER_BPF_PROG_INFO processing. Cc: Song Liu <song@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
66af7e9b05 |
perf header: Sanity check HEADER_BPF_PROG_INFO
Add validation to process_bpf_prog_info() to harden against malformed perf.data files: - Upper bound on BPF program count (max 131072) - Upper bound on per-program data_len (max 256MB) Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
f5722a6b6a |
perf header: Sanity check HEADER_PMU_CAPS
Add upper bound checks in PMU capabilities processing to harden against malformed perf.data files: - nr_pmu bounded to MAX_PMU_MAPPINGS (4096) in process_pmu_caps() - nr_pmu_caps bounded to MAX_PMU_CAPS (512) in __process_pmu_caps() Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
47c68eb15a |
perf header: Sanity check HEADER_HYBRID_TOPOLOGY
Add upper bound check on nr_nodes in process_hybrid_topology() to harden against malformed perf.data files (reuses MAX_PMU_MAPPINGS, 4096). Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
110a661708 |
perf header: Sanity check HEADER_CACHE
Add upper bound check on cache entry count in process_cache() to harden against malformed perf.data files (max 32768). Cc: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
6830e20c92 |
perf header: Sanity check HEADER_GROUP_DESC
Add upper bound check on nr_groups in process_group_desc() to harden against malformed perf.data files (max 32768), and move the env assignment after validation. Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
f613a6d694 |
perf header: Sanity check HEADER_PMU_MAPPINGS
Add upper bound check on pmu_num in process_pmu_mappings() to harden against malformed perf.data files (max 4096). Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
a881fc5603 |
perf header: Sanity check HEADER_MEM_TOPOLOGY
Add validation to process_mem_topology() to harden against malformed perf.data files: - Upper bound check on nr_nodes (reuses MAX_NUMA_NODES, 4096) - Minimum section size check before allocating This is particularly important here since nr is u64, making unbounded values especially dangerous. Cc: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
4ba223016b |
perf header: Sanity check HEADER_NUMA_TOPOLOGY
Add validation to process_numa_topology() to harden against malformed perf.data files: - Upper bound check on nr_nodes (max 4096) - Minimum section size check before allocating Cc: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
22a2e2b292 |
perf header: Sanity check HEADER_CPU_TOPOLOGY
Add validation to process_cpu_topology() to harden against malformed perf.data files: - Verify nr_cpus_avail was initialized (HEADER_NRCPUS processed first) - Bounds check sibling counts (cores, threads, dies) against nr_cpus_avail - Fix two bare 'return -1' that leaked env->cpu by using 'goto free_cpu' Cc: Jiri Olsa <jolsa@kernel.org> Cc: Ian Rogers <irogers@google.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
376ce5a9f7 |
perf header: Sanity check HEADER_NRCPUS and HEADER_CPU_DOMAIN_INFO
While working on some cleanups sashiko questioned about pre-existing issues, namely lacking sanity checks for perf.data headers, add some with the help of Claude. Cc: Ian Rogers <irogers@google.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
06452a412e |
perf header: Bump up the max number of command line args allowed
We need to do some upper limit validation, bump up the arbitrary limit as per suggestion of Sashiko about command line wildcard expansion ending up with more than 32768 args. Link: https://sashiko.dev/#/patchset/20260408172846.96360-1-acme%40kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
f823d7efb8 |
perf header: Validate nr_domains when reading HEADER_CPU_DOMAIN_INFO
Further validate the HEADER_CPU_DOMAIN_INFO fields, this time checking the nr_domains field. Assisted-by: Claude Code:claude-opus-4-6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Aditya Garg
|
ca5ee0e918 |
tools: hv: Fix cross-compilation
Use the native ARCH only in case it is not set, this will allow the
cross-compilation where ARCH is explicitly set.
Additionally, simplify the ARCH check to build the fcopy daemon only
for x86 and x86_64.
Fixes:
|
||
|
Linus Torvalds
|
1334d2a3b3 |
gpio updates for v7.1-rc1
GPIO core:
- defer probe on software node lookups when the remote software node
exists but has not been registered as a firmware node yet
- unify GPIO hog handling by moving code duplicated in OF and ACPI
modules into GPIO core and allow setting up hogs with software nodes
- allow matching GPIO controllers by secondary firmware node if matching
by primary does not succeed
- demote deferral warnings to debug level as they are quite normal when
using software nodes which don't support fw_devlink yet
- disable the legacy GPIO character device uAPI v1 supprt in Kconfig by
default
- rework several core functions in preparation for the upcoming Revocable
helper library for protecting resources against sudden removal, this
reduces the number of SRCU dereferences in GPIO core
- simplify file descriptor logic in GPIO character device code by using
FD_PREPARE()
- introduce a header defining symbols used by both GPIO consumers and
providers to avoid having to include provider-specific headers from
drivers which only consume GPIOs
- replace snprintf() with strscpy() where formatting is not required
New drivers:
- add the gpio-by-pinctrl generic driver using the ARM SCMI protocol to
control GPIOs (along with SCMI changes pulled from the pinctrl tree)
- add a driver providing support for handling of platform events via
GPIO-signalled ACPI events (used on Intel Nova Lake and later platforms)
Driver changes:
- extend the gpio-kempld driver with support for more recent models,
interrupts and setting/getting multiple values at once
- improve interrupt handling in gpio-brcmstb
- add support for multi-SoC systems in gpio-tegra186
- make sure we return correct values from the .get() callbacks in several
GPIO drivers by normalizing any values other than 0, 1 or negative error
numbers
- use flexible arrays in several drivers to reduce the number of required
memory allocations
- simplify synchronous waiting for virtual drivers to probe and remove the
dedicated, a bit overengineered helper library dev-sync-probe
- remove unneeded Kconfig dependencies on OF_GPIO in several drivers and
subsystems
- convert the two remaining users of of_get_named_gpio() to using GPIO
descriptors and remove the (no longer used) function along with the
header that declares it
- add missing includes in gpio-mmio
- shrink and simplify code in gpio-max732x by using guard(mutex)
- remove duplicated code handling the 'ngpios' property from gpio-ts4800,
it's already handled in GPIO core
- use correct variable type in gpio-aspeed
- add support for a new model in gpio-realtek-otto
- allow to specify the active-low setting of simulated hogs over the
configfs interface (in addition to existing devicetree support) in
gpio-sim
Bug fixes:
- clear the OF_POPULATED flag on hog nodes in GPIO chip remove path on
OF systems
- fix resource leaks in error path in gpiochip_add_data_with_key()
- drop redundant device reference in gpio-mpsse
Tests:
- add selftests for use-after-free cases in GPIO character device code
DT bindings:
- add a DT binding document for SCMI based, gpio-over-pinctrl devices
- fix interrupt description in microchip,mpfs-gpio
- add new compatible for gpio-realtek-otto
- describe the resets of the mpfs-gpio controller
- fix maintainer's email in gpio-delay bindings
- remove the binding document for cavium,thunder-8890 as the corresponding
device is bound over PCI and not firmware nodes
Documentation:
- update the recommended way of converting legacy boards to using software
nodes for GPIO description
- describe GPIO line value semantics
- misc updates to kerneldocs
Misc:
- convert OMAP1 ams-delta board to using GPIO hogs described with software
nodes
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Merge tag 'gpio-updates-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"For this merge window we have two new drivers: support for
GPIO-signalled ACPI events on Intel platforms and a generic
GPIO-over-pinctrl driver using the ARM SCMI protocol for
controlling pins.
Several things have been reworked in GPIO core: we unduplicated GPIO
hog handling, reduced the number of SRCU locks and dereferences,
improved support for software-node-based lookup and removed more
legacy code after converting remaining users to modern alternatives.
There's also a number of driver reworks and refactoring, documentation
updates, some bug-fixes and new tests.
GPIO core:
- defer probe on software node lookups when the remote software node
exists but has not been registered as a firmware node yet
- unify GPIO hog handling by moving code duplicated in OF and ACPI
modules into GPIO core and allow setting up hogs with software
nodes
- allow matching GPIO controllers by secondary firmware node if
matching by primary does not succeed
- demote deferral warnings to debug level as they are quite normal
when using software nodes which don't support fw_devlink yet
- disable the legacy GPIO character device uAPI v1 supprt in Kconfig
by default
- rework several core functions in preparation for the upcoming
Revocable helper library for protecting resources against sudden
removal, this reduces the number of SRCU dereferences in GPIO core
- simplify file descriptor logic in GPIO character device code by
using FD_PREPARE()
- introduce a header defining symbols used by both GPIO consumers and
providers to avoid having to include provider-specific headers from
drivers which only consume GPIOs
- replace snprintf() with strscpy() where formatting is not required
New drivers:
- add the gpio-by-pinctrl generic driver using the ARM SCMI protocol
to control GPIOs (along with SCMI changes pulled from the pinctrl
tree)
- add a driver providing support for handling of platform events via
GPIO-signalled ACPI events (used on Intel Nova Lake and later
platforms)
Driver changes:
- extend the gpio-kempld driver with support for more recent models,
interrupts and setting/getting multiple values at once
- improve interrupt handling in gpio-brcmstb
- add support for multi-SoC systems in gpio-tegra186
- make sure we return correct values from the .get() callbacks in
several GPIO drivers by normalizing any values other than 0, 1 or
negative error numbers
- use flexible arrays in several drivers to reduce the number of
required memory allocations
- simplify synchronous waiting for virtual drivers to probe and
remove the dedicated, a bit overengineered helper library
dev-sync-probe
- remove unneeded Kconfig dependencies on OF_GPIO in several drivers
and subsystems
- convert the two remaining users of of_get_named_gpio() to using
GPIO descriptors and remove the (no longer used) function along
with the header that declares it
- add missing includes in gpio-mmio
- shrink and simplify code in gpio-max732x by using guard(mutex)
- remove duplicated code handling the 'ngpios' property from
gpio-ts4800, it's already handled in GPIO core
- use correct variable type in gpio-aspeed
- add support for a new model in gpio-realtek-otto
- allow to specify the active-low setting of simulated hogs over the
configfs interface (in addition to existing devicetree support) in
gpio-sim
Bug fixes:
- clear the OF_POPULATED flag on hog nodes in GPIO chip remove path
on OF systems
- fix resource leaks in error path in gpiochip_add_data_with_key()
- drop redundant device reference in gpio-mpsse
Tests:
- add selftests for use-after-free cases in GPIO character device
code
DT bindings:
- add a DT binding document for SCMI based, gpio-over-pinctrl devices
- fix interrupt description in microchip,mpfs-gpio
- add new compatible for gpio-realtek-otto
- describe the resets of the mpfs-gpio controller
- fix maintainer's email in gpio-delay bindings
- remove the binding document for cavium,thunder-8890 as the
corresponding device is bound over PCI and not firmware nodes
Documentation:
- update the recommended way of converting legacy boards to using
software nodes for GPIO description
- describe GPIO line value semantics
- misc updates to kerneldocs
Misc:
- convert OMAP1 ams-delta board to using GPIO hogs described with
software nodes"
* tag 'gpio-updates-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (79 commits)
gpio: swnode: defer probe on references to unregistered software nodes
dt-bindings: gpio: cavium,thunder-8890: Remove DT binding
Documentation: gpio: update the preferred method for using software node lookup
gpio: gpio-by-pinctrl: s/used to do/is used to do/
gpio: aspeed: fix unsigned long int declaration
gpio: rockchip: convert to dynamic GPIO base allocation
gpio: remove dev-sync-probe
gpio: virtuser: stop using dev-sync-probe
gpio: aggregator: stop using dev-sync-probe
gpio: sim: stop using dev-sync-probe
gpio: Add Intel Nova Lake ACPI GPIO events driver
gpiolib: Make deferral warnings debug messages
gpiolib: fix hogs with multiple lines
gpio: fix up CONFIG_OF dependencies
gpio: gpio-by-pinctrl: add pinctrl based generic GPIO driver
gpio: dt-bindings: Add GPIO on top of generic pin control
firmware: arm_scmi: Allow PINCTRL_REQUEST to return EOPNOTSUPP
pinctrl: scmi: ignore PIN_CONFIG_PERSIST_STATE
pinctrl: scmi: Delete PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS support
pinctrl: scmi: Add SCMI_PIN_INPUT_VALUE
...
|
||
|
Linus Torvalds
|
d7c8087a9c |
Power management updates for 7.1-rc1
- Update qcom-hw DT bindings to include Eliza hardware (Abel Vesa)
- Update cpufreq-dt-platdev blocklist (Faruque Ansari)
- Minor updates to driver and dt-bindings for Tegra (Thierry Reding,
Rosen Penev)
- Add MAINTAINERS entry for CPPC driver (Viresh Kumar)
- Add support for new features: CPPC performance priority, Dynamic EPP,
Raw EPP, and new unit tests for them to amd-pstate (Gautham Shenoy,
Mario Limonciello)
- Fix sysfs files being present when HW missing and broken/outdated
documentation in the amd-pstate driver (Ninad Naik, Gautham Shenoy)
- Pass the policy to cpufreq_driver->adjust_perf() to avoid using
cpufreq_cpu_get() in the .adjust_perf() callback in amd-pstate which
leads to a scheduling-while-atomic bug (K Prateek Nayak)
- Clean up dead code in Kconfig for cpufreq (Julian Braha)
- Remove max_freq_req update for pre-existing cpufreq policy and add a
boost_freq_req QoS request to save the boost constraint instead of
overwriting the last scaling_max_freq constraint (Pierre Gondois)
- Embed cpufreq QoS freq_req objects in cpufreq policy so they all
are allocated in one go along with the policy to simplify lifetime
rules and avoid error handling issues (Viresh Kumar)
- Use DMI max speed when CPPC is unavailable in the acpi-cpufreq
scaling driver (Henry Tseng)
- Switch policy_is_shared() in cpufreq to using cpumask_nth() instead
of cpumask_weight() because the former is more efficient (Yury Norov)
- Use sysfs_emit() in sysfs show functions for cpufreq governor
attributes (Thorsten Blum)
- Update intel_pstate to stop returning an error when "off" is written
to its status sysfs attribute while the driver is already off (Fabio
De Francesco)
- Include current frequency in the debug message printed by
__cpufreq_driver_target() (Pengjie Zhang)
- Refine stopped tick handling in the menu cpuidle governor and
rearrange stopped tick handling in the teo cpuidle governor (Rafael
Wysocki)
- Add Panther Lake C-states table to the intel_idle driver (Artem
Bityutskiy)
- Clean up dead dependencies on CPU_IDLE in Kconfig (Julian Braha)
- Simplify cpuidle_register_device() with guard() (Huisong Li)
- Use performance level if available to distinguish between rates in
OPP debugfs (Manivannan Sadhasivam)
- Fix scoped_guard in dev_pm_opp_xlate_required_opp() (Viresh Kumar)
- Return -ENODATA if the snapshot image is not loaded (Alberto Garcia)
- Remove inclusion of crypto/hash.h from hibernate_64.c on x86 (Eric
Biggers)
- Clean up and rearrange the intel_rapl power capping driver to make
the respective interface drivers (TPMI, MSR, and MMOI) hold their
own settings and primitives and consolidate PL4 and PMU support
flags into rapl_defaults (Kuppuswamy Sathyanarayanan)
- Correct kernel-doc function parameter names in the power capping core
code (Randy Dunlap)
- Remove unneeded casting for HZ_PER_KHZ in devfreq (Andy Shevchenko)
- Use _visible attribute to replace create/remove_sysfs_files() in
devfreq (Pengjie Zhang)
- Add Tegra114 support to activity monitor device in tegra30-devfreq as
a preparation to upcoming EMC controller support (Svyatoslav Ryhel)
- Fix mistakes in cpupower man pages, add the boost and epp options to
the cpupower-frequency-info man page, and add the perf-bias option to
the cpupower-info man page (Roberto Ricci)
- Remove unnecessary extern declarations from getopt.h in arguments
parsing functions in cpufreq-set, cpuidle-info, cpuidle-set,
cpupower-info, and cpupower-set utilities (Kaushlendra Kumar)
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Merge tag 'pm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"Once again, cpufreq is the most active development area, mostly
because of the new feature additions and documentation updates in the
amd-pstate driver, but there are also changes in the cpufreq core
related to boost support and other assorted updates elsewhere.
Next up are power capping changes due to the major cleanup of the
Intel RAPL driver.
On the cpuidle front, a new C-states table for Intel Panther Lake is
added to the intel_idle driver, the stopped tick handling in the menu
and teo governors is updated, and there are a couple of cleanups.
Apart from the above, support for Tegra114 is added to devfreq and
there are assorted cleanups of that code, there are also two updates
of the operating performance points (OPP) library, two minor updates
related to hibernation, and cpupower utility man pages updates and
cleanups.
Specifics:
- Update qcom-hw DT bindings to include Eliza hardware (Abel Vesa)
- Update cpufreq-dt-platdev blocklist (Faruque Ansari)
- Minor updates to driver and dt-bindings for Tegra (Thierry Reding,
Rosen Penev)
- Add MAINTAINERS entry for CPPC driver (Viresh Kumar)
- Add support for new features: CPPC performance priority, Dynamic
EPP, Raw EPP, and new unit tests for them to amd-pstate (Gautham
Shenoy, Mario Limonciello)
- Fix sysfs files being present when HW missing and broken/outdated
documentation in the amd-pstate driver (Ninad Naik, Gautham Shenoy)
- Pass the policy to cpufreq_driver->adjust_perf() to avoid using
cpufreq_cpu_get() in the .adjust_perf() callback in amd-pstate
which leads to a scheduling-while-atomic bug (K Prateek Nayak)
- Clean up dead code in Kconfig for cpufreq (Julian Braha)
- Remove max_freq_req update for pre-existing cpufreq policy and add
a boost_freq_req QoS request to save the boost constraint instead
of overwriting the last scaling_max_freq constraint (Pierre
Gondois)
- Embed cpufreq QoS freq_req objects in cpufreq policy so they all
are allocated in one go along with the policy to simplify lifetime
rules and avoid error handling issues (Viresh Kumar)
- Use DMI max speed when CPPC is unavailable in the acpi-cpufreq
scaling driver (Henry Tseng)
- Switch policy_is_shared() in cpufreq to using cpumask_nth() instead
of cpumask_weight() because the former is more efficient (Yury
Norov)
- Use sysfs_emit() in sysfs show functions for cpufreq governor
attributes (Thorsten Blum)
- Update intel_pstate to stop returning an error when "off" is
written to its status sysfs attribute while the driver is already
off (Fabio De Francesco)
- Include current frequency in the debug message printed by
__cpufreq_driver_target() (Pengjie Zhang)
- Refine stopped tick handling in the menu cpuidle governor and
rearrange stopped tick handling in the teo cpuidle governor (Rafael
Wysocki)
- Add Panther Lake C-states table to the intel_idle driver (Artem
Bityutskiy)
- Clean up dead dependencies on CPU_IDLE in Kconfig (Julian Braha)
- Simplify cpuidle_register_device() with guard() (Huisong Li)
- Use performance level if available to distinguish between rates in
OPP debugfs (Manivannan Sadhasivam)
- Fix scoped_guard in dev_pm_opp_xlate_required_opp() (Viresh Kumar)
- Return -ENODATA if the snapshot image is not loaded (Alberto
Garcia)
- Remove inclusion of crypto/hash.h from hibernate_64.c on x86 (Eric
Biggers)
- Clean up and rearrange the intel_rapl power capping driver to make
the respective interface drivers (TPMI, MSR, and MMOI) hold their
own settings and primitives and consolidate PL4 and PMU support
flags into rapl_defaults (Kuppuswamy Sathyanarayanan)
- Correct kernel-doc function parameter names in the power capping
core code (Randy Dunlap)
- Remove unneeded casting for HZ_PER_KHZ in devfreq (Andy Shevchenko)
- Use _visible attribute to replace create/remove_sysfs_files() in
devfreq (Pengjie Zhang)
- Add Tegra114 support to activity monitor device in tegra30-devfreq
as a preparation to upcoming EMC controller support (Svyatoslav
Ryhel)
- Fix mistakes in cpupower man pages, add the boost and epp options
to the cpupower-frequency-info man page, and add the perf-bias
option to the cpupower-info man page (Roberto Ricci)
- Remove unnecessary extern declarations from getopt.h in arguments
parsing functions in cpufreq-set, cpuidle-info, cpuidle-set,
cpupower-info, and cpupower-set utilities (Kaushlendra Kumar)"
* tag 'pm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
cpufreq/amd-pstate: Add POWER_SUPPLY select for dynamic EPP
cpupower: remove extern declarations in cmd functions
cpuidle: Simplify cpuidle_register_device() with guard()
PM / devfreq: tegra30-devfreq: add support for Tegra114
PM / devfreq: use _visible attribute to replace create/remove_sysfs_files()
PM / devfreq: Remove unneeded casting for HZ_PER_KHZ
MAINTAINERS: amd-pstate: Step down as maintainer, add Prateek as reviewer
cpufreq: Pass the policy to cpufreq_driver->adjust_perf()
cpufreq/amd-pstate: Pass the policy to amd_pstate_update()
cpufreq/amd-pstate-ut: Add a unit test for raw EPP
cpufreq/amd-pstate: Add support for raw EPP writes
cpufreq/amd-pstate: Add support for platform profile class
cpufreq/amd-pstate: add kernel command line to override dynamic epp
cpufreq/amd-pstate: Add dynamic energy performance preference
Documentation: amd-pstate: fix dead links in the reference section
cpufreq/amd-pstate: Cache the max frequency in cpudata
Documentation/amd-pstate: Add documentation for amd_pstate_floor_{freq,count}
Documentation/amd-pstate: List amd_pstate_prefcore_ranking sysfs file
Documentation/amd-pstate: List amd_pstate_hw_prefcore sysfs file
amd-pstate-ut: Add a testcase to validate the visibility of driver attributes
...
|
||
|
Linus Torvalds
|
4793dae01f |
Driver core changes for 7.1-rc1
- debugfs:
- Fix NULL pointer dereference in debugfs_create_str()
- Fix misplaced EXPORT_SYMBOL_GPL for debugfs_create_str()
- Fix soundwire debugfs NULL pointer dereference from uninitialized
firmware_file
- device property:
- Make fwnode flags modifications thread safe; widen the field to
unsigned long and use set_bit() / clear_bit() based accessors
- Document how to check for the property presence
- devres:
- Separate struct devres_node from its "subclasses" (struct devres,
struct devres_group); give struct devres_node its own release and
free callbacks for per-type dispatch
- Introduce struct devres_action for devres actions, avoiding the
ARCH_DMA_MINALIGN alignment overhead of struct devres
- Export struct devres_node and its init/add/remove/dbginfo
primitives for use by Rust Devres<T>
- Fix missing node debug info in devm_krealloc()
- Use guard(spinlock_irqsave) where applicable; consolidate unlock
paths in devres_release_group()
- driver_override:
- Convert PCI, WMI, vdpa, s390/cio, s390/ap, and fsl-mc to the
generic driver_override infrastructure, replacing per-bus
driver_override strings, sysfs attributes, and match logic; fixes
a potential UAF from unsynchronized access to driver_override in
bus match() callbacks
- Simplify __device_set_driver_override() logic
- kernfs:
- Send IN_DELETE_SELF and IN_IGNORED inotify events on kernfs
file and directory removal
- Add corresponding selftests for memcg
- platform:
- Allow attaching software nodes when creating platform devices via
a new 'swnode' field in struct platform_device_info
- Add kerneldoc for struct platform_device_info
- software node:
- Move software node initialization from postcore_initcall() to
driver_init(), making it available early in the boot process
- Move kernel_kobj initialization (ksysfs_init) earlier to support
the above
- Remove software_node_exit(); dead code in a built-in unit
- SoC:
- Introduce of_machine_read_compatible() and of_machine_read_model()
OF helpers and export soc_attr_read_machine() to replace direct
accesses to of_root from SoC drivers; also enables
CONFIG_COMPILE_TEST coverage for these drivers
- sysfs:
- Constify attribute group array pointers to
'const struct attribute_group *const *' in sysfs functions,
device_add_groups() / device_remove_groups(), and struct class
- Rust:
- Devres:
- Embed struct devres_node directly in Devres<T> instead of going
through devm_add_action(), avoiding the extra allocation and
the unnecessary ARCH_DMA_MINALIGN alignment
- I/O:
- Turn IoCapable from a marker trait into a functional trait
carrying the raw I/O accessor implementation (io_read /
io_write), providing working defaults for the per-type Io
methods
- Add RelaxedMmio wrapper type, making relaxed accessors usable
in code generic over the Io trait
- Remove overloaded per-type Io methods and per-backend macros
from Mmio and PCI ConfigSpace
- I/O (Register):
- Add IoLoc trait and generic read/write/update methods to the Io
trait, making I/O operations parameterizable by typed locations
- Add register! macro for defining hardware register types with
typed bitfield accessors backed by Bounded values; supports
direct, relative, and array register addressing
- Add write_reg() / try_write_reg() and LocatedRegister trait
- Update PCI sample driver to demonstrate the register! macro
Example:
```
register! {
/// UART control register.
CTRL(u32) @ 0x18 {
/// Receiver enable.
19:19 rx_enable => bool;
/// Parity configuration.
14:13 parity ?=> Parity;
}
/// FIFO watermark and counter register.
WATER(u32) @ 0x2c {
/// Number of datawords in the receive FIFO.
26:24 rx_count;
/// RX interrupt threshold.
17:16 rx_water;
}
}
impl WATER {
fn rx_above_watermark(&self) -> bool {
self.rx_count() > self.rx_water()
}
}
fn init(bar: &pci::Bar<BAR0_SIZE>) {
let water = WATER::zeroed()
.with_const_rx_water::<1>(); // > 3 would not compile
bar.write_reg(water);
let ctrl = CTRL::zeroed()
.with_parity(Parity::Even)
.with_rx_enable(true);
bar.write_reg(ctrl);
}
fn handle_rx(bar: &pci::Bar<BAR0_SIZE>) {
if bar.read(WATER).rx_above_watermark() {
// drain the FIFO
}
}
fn set_parity(bar: &pci::Bar<BAR0_SIZE>, parity: Parity) {
bar.update(CTRL, |r| r.with_parity(parity));
}
```
- IRQ:
- Move 'static bounds from where clauses to trait declarations
for IRQ handler traits
- Misc:
- Enable the generic_arg_infer Rust feature
- Extend Bounded with shift operations, single-bit bool conversion,
and const get()
- Misc:
- Make deferred_probe_timeout default a Kconfig option
- Drop auxiliary_dev_pm_ops; the PM core falls back to driver PM
callbacks when no bus type PM ops are set
- Add conditional guard support for device_lock()
- Add ksysfs.c to the DRIVER CORE MAINTAINERS entry
- Fix kernel-doc warnings in base.h
- Fix stale reference to memory_block_add_nid() in documentation
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Merge tag 'driver-core-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"debugfs:
- Fix NULL pointer dereference in debugfs_create_str()
- Fix misplaced EXPORT_SYMBOL_GPL for debugfs_create_str()
- Fix soundwire debugfs NULL pointer dereference from uninitialized
firmware_file
device property:
- Make fwnode flags modifications thread safe; widen the field to
unsigned long and use set_bit() / clear_bit() based accessors
- Document how to check for the property presence
devres:
- Separate struct devres_node from its "subclasses" (struct devres,
struct devres_group); give struct devres_node its own release and
free callbacks for per-type dispatch
- Introduce struct devres_action for devres actions, avoiding the
ARCH_DMA_MINALIGN alignment overhead of struct devres
- Export struct devres_node and its init/add/remove/dbginfo
primitives for use by Rust Devres<T>
- Fix missing node debug info in devm_krealloc()
- Use guard(spinlock_irqsave) where applicable; consolidate unlock
paths in devres_release_group()
driver_override:
- Convert PCI, WMI, vdpa, s390/cio, s390/ap, and fsl-mc to the
generic driver_override infrastructure, replacing per-bus
driver_override strings, sysfs attributes, and match logic; fixes a
potential UAF from unsynchronized access to driver_override in bus
match() callbacks
- Simplify __device_set_driver_override() logic
kernfs:
- Send IN_DELETE_SELF and IN_IGNORED inotify events on kernfs file
and directory removal
- Add corresponding selftests for memcg
platform:
- Allow attaching software nodes when creating platform devices via a
new 'swnode' field in struct platform_device_info
- Add kerneldoc for struct platform_device_info
software node:
- Move software node initialization from postcore_initcall() to
driver_init(), making it available early in the boot process
- Move kernel_kobj initialization (ksysfs_init) earlier to support
the above
- Remove software_node_exit(); dead code in a built-in unit
SoC:
- Introduce of_machine_read_compatible() and of_machine_read_model()
OF helpers and export soc_attr_read_machine() to replace direct
accesses to of_root from SoC drivers; also enables
CONFIG_COMPILE_TEST coverage for these drivers
sysfs:
- Constify attribute group array pointers to
'const struct attribute_group *const *' in sysfs functions,
device_add_groups() / device_remove_groups(), and struct class
Rust:
- Devres:
- Embed struct devres_node directly in Devres<T> instead of going
through devm_add_action(), avoiding the extra allocation and the
unnecessary ARCH_DMA_MINALIGN alignment
- I/O:
- Turn IoCapable from a marker trait into a functional trait
carrying the raw I/O accessor implementation (io_read /
io_write), providing working defaults for the per-type Io
methods
- Add RelaxedMmio wrapper type, making relaxed accessors usable in
code generic over the Io trait
- Remove overloaded per-type Io methods and per-backend macros
from Mmio and PCI ConfigSpace
- I/O (Register):
- Add IoLoc trait and generic read/write/update methods to the Io
trait, making I/O operations parameterizable by typed locations
- Add register! macro for defining hardware register types with
typed bitfield accessors backed by Bounded values; supports
direct, relative, and array register addressing
- Add write_reg() / try_write_reg() and LocatedRegister trait
- Update PCI sample driver to demonstrate the register! macro
Example:
```
register! {
/// UART control register.
CTRL(u32) @ 0x18 {
/// Receiver enable.
19:19 rx_enable => bool;
/// Parity configuration.
14:13 parity ?=> Parity;
}
/// FIFO watermark and counter register.
WATER(u32) @ 0x2c {
/// Number of datawords in the receive FIFO.
26:24 rx_count;
/// RX interrupt threshold.
17:16 rx_water;
}
}
impl WATER {
fn rx_above_watermark(&self) -> bool {
self.rx_count() > self.rx_water()
}
}
fn init(bar: &pci::Bar<BAR0_SIZE>) {
let water = WATER::zeroed()
.with_const_rx_water::<1>(); // > 3 would not compile
bar.write_reg(water);
let ctrl = CTRL::zeroed()
.with_parity(Parity::Even)
.with_rx_enable(true);
bar.write_reg(ctrl);
}
fn handle_rx(bar: &pci::Bar<BAR0_SIZE>) {
if bar.read(WATER).rx_above_watermark() {
// drain the FIFO
}
}
fn set_parity(bar: &pci::Bar<BAR0_SIZE>, parity: Parity) {
bar.update(CTRL, |r| r.with_parity(parity));
}
```
- IRQ:
- Move 'static bounds from where clauses to trait declarations for
IRQ handler traits
- Misc:
- Enable the generic_arg_infer Rust feature
- Extend Bounded with shift operations, single-bit bool
conversion, and const get()
Misc:
- Make deferred_probe_timeout default a Kconfig option
- Drop auxiliary_dev_pm_ops; the PM core falls back to driver PM
callbacks when no bus type PM ops are set
- Add conditional guard support for device_lock()
- Add ksysfs.c to the DRIVER CORE MAINTAINERS entry
- Fix kernel-doc warnings in base.h
- Fix stale reference to memory_block_add_nid() in documentation"
* tag 'driver-core-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (67 commits)
bus: fsl-mc: use generic driver_override infrastructure
s390/ap: use generic driver_override infrastructure
s390/cio: use generic driver_override infrastructure
vdpa: use generic driver_override infrastructure
platform/wmi: use generic driver_override infrastructure
PCI: use generic driver_override infrastructure
driver core: make software nodes available earlier
software node: remove software_node_exit()
kernel: ksysfs: initialize kernel_kobj earlier
MAINTAINERS: add ksysfs.c to the DRIVER CORE entry
drivers/base/memory: fix stale reference to memory_block_add_nid()
device property: Document how to check for the property presence
soundwire: debugfs: initialize firmware_file to empty string
debugfs: fix placement of EXPORT_SYMBOL_GPL for debugfs_create_str()
debugfs: check for NULL pointer in debugfs_create_str()
driver core: Make deferred_probe_timeout default a Kconfig option
driver core: simplify __device_set_driver_override() clearing logic
driver core: auxiliary bus: Drop auxiliary_dev_pm_ops
device property: Make modifications of fwnode "flags" thread safe
rust: devres: embed struct devres_node directly
...
|
||
|
Linus Torvalds
|
d568788baa |
hardening updates for v7.1-rc1
- randomize_kstack: Improve implementation across arches (Ryan Roberts) - lkdtm/fortify: Drop unneeded FORTIFY_STR_OBJECT test - refcount: Remove unused __signed_wrap function annotations -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCad16PwAKCRA2KwveOeQk u7crAP4qz8gXCjes76KsZm/YQS8PtOG5JroAVu5Oa4ohw0RfaQD+K/XLow1plcNF 4Bi8zSuv2ifcLysh9qEAbx5+wcHijgo= =woB3 -----END PGP SIGNATURE----- Merge tag 'hardening-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: - randomize_kstack: Improve implementation across arches (Ryan Roberts) - lkdtm/fortify: Drop unneeded FORTIFY_STR_OBJECT test - refcount: Remove unused __signed_wrap function annotations * tag 'hardening-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lkdtm/fortify: Drop unneeded FORTIFY_STR_OBJECT test refcount: Remove unused __signed_wrap function annotations randomize_kstack: Unify random source across arches randomize_kstack: Maintain kstack_offset per task |
||
|
Linus Torvalds
|
cea4a90faf |
seccomp update for v7.1-rc1
- selftests: Add hard-coded __NR_uprobe for x86_64 (Oleg Nesterov) -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCad146wAKCRA2KwveOeQk u9LrAP4hemiMrgvEIo2DPVJ8H+QiRZtsJvFLFC/yvdgrllxyUQEA24RjRKXoZcL4 G9hD3FL31MTcbTV9Gdf0bOlLCqqUqg4= =7sDF -----END PGP SIGNATURE----- Merge tag 'seccomp-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp update from Kees Cook: - selftests: Add hard-coded __NR_uprobe for x86_64 (Oleg Nesterov) * tag 'seccomp-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: Add hard-coded __NR_uprobe for x86_64 |
||
|
Linus Torvalds
|
d142ab35ee |
CRC updates for 7.1
- Several improvements related to crc_kunit, to align with the standard KUnit conventions and make it easier for developers and CI systems to run this test suite - Add an arm64-optimized implementation of CRC64-NVME - Remove unused code for big endian arm64 -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCadWAVxQcZWJpZ2dlcnNA a2VybmVsLm9yZwAKCRDzXCl4vpKOK4zEAP9Asz9U6aA8XdlYa66nSORpUz0zQxVL tIvSOaQis6K0LwEAm4xABXc+rrVHqYhePRRqDteAEOzhBOX9mwY8wPjR3Ag= =VknF -----END PGP SIGNATURE----- Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux Pull CRC updates from Eric Biggers: - Several improvements related to crc_kunit, to align with the standard KUnit conventions and make it easier for developers and CI systems to run this test suite - Add an arm64-optimized implementation of CRC64-NVME - Remove unused code for big endian arm64 * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: lib/crc: arm64: Simplify intrinsics implementation lib/crc: arm64: Use existing macros for kernel-mode FPU cflags lib/crc: arm64: Drop unnecessary chunking logic from crc64 lib/crc: arm64: Assume a little-endian kernel lib/crc: arm64: add NEON accelerated CRC64-NVMe implementation lib/crc: arm64: Drop check for CONFIG_KERNEL_MODE_NEON crypto: crc32c - Remove another outdated comment crypto: crc32c - Remove more outdated usage information kunit: configs: Enable all CRC tests in all_tests.config lib/crc: tests: Add a .kunitconfig file lib/crc: tests: Add CRC_ENABLE_ALL_FOR_KUNIT lib/crc: tests: Make crc_kunit test only the enabled CRC variants |
||
|
Linus Torvalds
|
370c388319 |
Crypto library updates for 7.1
- Migrate more hash algorithms from the traditional crypto subsystem
to lib/crypto/.
Like the algorithms migrated earlier (e.g. SHA-*), this simplifies
the implementations, improves performance, enables further
simplifications in calling code, and solves various other issues:
- AES CBC-based MACs (AES-CMAC, AES-XCBC-MAC, and AES-CBC-MAC)
- Support these algorithms in lib/crypto/ using the AES
library and the existing arm64 assembly code
- Reimplement the traditional crypto API's "cmac(aes)",
"xcbc(aes)", and "cbcmac(aes)" on top of the library
- Convert mac80211 to use the AES-CMAC library. Note: several
other subsystems can use it too and will be converted later
- Drop the broken, nonstandard, and likely unused support for
"xcbc(aes)" with key lengths other than 128 bits
- Enable optimizations by default
- GHASH
- Migrate the standalone GHASH code into lib/crypto/
- Integrate the GHASH code more closely with the very similar
POLYVAL code, and improve the generic GHASH implementation
to resist cache-timing attacks and use much less memory
- Reimplement the AES-GCM library and the "gcm" crypto_aead
template on top of the GHASH library. Remove "ghash" from
the crypto_shash API, as it's no longer needed
- Enable optimizations by default
- SM3
- Migrate the kernel's existing SM3 code into lib/crypto/, and
reimplement the traditional crypto API's "sm3" on top of it
- I don't recommend using SM3, but this cleanup is worthwhile
to organize the code the same way as other algorithms
- Testing improvements
- Add a KUnit test suite for each of the new library APIs
- Migrate the existing ChaCha20Poly1305 test to KUnit
- Make the KUnit all_tests.config enable all crypto library tests
- Move the test kconfig options to the Runtime Testing menu
- Other updates to arch-optimized crypto code
- Optimize SHA-256 for Zhaoxin CPUs using the Padlock Hash Engine
- Remove some MD5 implementations that are no longer worth keeping
- Drop big endian and voluntary preemption support from the arm64
code, as those configurations are no longer supported on arm64
- Make jitterentropy and samples/tsm-mr use the crypto library APIs
Note: the overall diffstat is neutral, but when the test code is
excluded it is significantly negative:
Tests: 13 files changed, 1982 insertions(+), 888 deletions(-)
Non-test: 141 files changed, 2897 insertions(+), 3987 deletions(-)
All: 154 files changed, 4879 insertions(+), 4875 deletions(-)
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
- Migrate more hash algorithms from the traditional crypto subsystem to
lib/crypto/
Like the algorithms migrated earlier (e.g. SHA-*), this simplifies
the implementations, improves performance, enables further
simplifications in calling code, and solves various other issues:
- AES CBC-based MACs (AES-CMAC, AES-XCBC-MAC, and AES-CBC-MAC)
- Support these algorithms in lib/crypto/ using the AES library
and the existing arm64 assembly code
- Reimplement the traditional crypto API's "cmac(aes)",
"xcbc(aes)", and "cbcmac(aes)" on top of the library
- Convert mac80211 to use the AES-CMAC library. Note: several
other subsystems can use it too and will be converted later
- Drop the broken, nonstandard, and likely unused support for
"xcbc(aes)" with key lengths other than 128 bits
- Enable optimizations by default
- GHASH
- Migrate the standalone GHASH code into lib/crypto/
- Integrate the GHASH code more closely with the very similar
POLYVAL code, and improve the generic GHASH implementation to
resist cache-timing attacks and use much less memory
- Reimplement the AES-GCM library and the "gcm" crypto_aead
template on top of the GHASH library. Remove "ghash" from the
crypto_shash API, as it's no longer needed
- Enable optimizations by default
- SM3
- Migrate the kernel's existing SM3 code into lib/crypto/, and
reimplement the traditional crypto API's "sm3" on top of it
- I don't recommend using SM3, but this cleanup is worthwhile
to organize the code the same way as other algorithms
- Testing improvements:
- Add a KUnit test suite for each of the new library APIs
- Migrate the existing ChaCha20Poly1305 test to KUnit
- Make the KUnit all_tests.config enable all crypto library tests
- Move the test kconfig options to the Runtime Testing menu
- Other updates to arch-optimized crypto code:
- Optimize SHA-256 for Zhaoxin CPUs using the Padlock Hash Engine
- Remove some MD5 implementations that are no longer worth keeping
- Drop big endian and voluntary preemption support from the arm64
code, as those configurations are no longer supported on arm64
- Make jitterentropy and samples/tsm-mr use the crypto library APIs
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (66 commits)
lib/crypto: arm64: Assume a little-endian kernel
arm64: fpsimd: Remove obsolete cond_yield macro
lib/crypto: arm64/sha3: Remove obsolete chunking logic
lib/crypto: arm64/sha512: Remove obsolete chunking logic
lib/crypto: arm64/sha256: Remove obsolete chunking logic
lib/crypto: arm64/sha1: Remove obsolete chunking logic
lib/crypto: arm64/poly1305: Remove obsolete chunking logic
lib/crypto: arm64/gf128hash: Remove obsolete chunking logic
lib/crypto: arm64/chacha: Remove obsolete chunking logic
lib/crypto: arm64/aes: Remove obsolete chunking logic
lib/crypto: Include <crypto/utils.h> instead of <crypto/algapi.h>
lib/crypto: aesgcm: Don't disable IRQs during AES block encryption
lib/crypto: aescfb: Don't disable IRQs during AES block encryption
lib/crypto: tests: Migrate ChaCha20Poly1305 self-test to KUnit
lib/crypto: sparc: Drop optimized MD5 code
lib/crypto: mips: Drop optimized MD5 code
lib: Move crypto library tests to Runtime Testing menu
crypto: sm3 - Remove 'struct sm3_state'
crypto: sm3 - Remove the original "sm3_block_generic()"
crypto: sm3 - Remove sm3_base.h
...
|
||
|
Linus Torvalds
|
7fe6ac157b |
for-7.1/block-20260411
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Merge tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- Add shared memory zero-copy I/O support for ublk, bypassing per-I/O
copies between kernel and userspace by matching registered buffer
PFNs at I/O time. Includes selftests.
- Refactor bio integrity to support filesystem initiated integrity
operations and arbitrary buffer alignment.
- Clean up bio allocation, splitting bio_alloc_bioset() into clear fast
and slow paths. Add bio_await() and bio_submit_or_kill() helpers,
unify synchronous bi_end_io callbacks.
- Fix zone write plug refcount handling and plug removal races. Add
support for serializing zone writes at QD=1 for rotational zoned
devices, yielding significant throughput improvements.
- Add SED-OPAL ioctls for Single User Mode management and a STACK_RESET
command.
- Add io_uring passthrough (uring_cmd) support to the BSG layer.
- Replace pp_buf in partition scanning with struct seq_buf.
- zloop improvements and cleanups.
- drbd genl cleanup, switching to pre_doit/post_doit.
- NVMe pull request via Keith:
- Fabrics authentication updates
- Enhanced block queue limits support
- Workqueue usage updates
- A new write zeroes device quirk
- Tagset cleanup fix for loop device
- MD pull requests via Yu Kuai:
- Fix raid5 soft lockup in retry_aligned_read()
- Fix raid10 deadlock with check operation and nowait requests
- Fix raid1 overlapping writes on writemostly disks
- Fix sysfs deadlock on array_state=clear
- Proactive RAID-5 parity building with llbitmap, with
write_zeroes_unmap optimization for initial sync
- Fix llbitmap barrier ordering, rdev skipping, and bitmap_ops
version mismatch fallback
- Fix bcache use-after-free and uninitialized closure
- Validate raid5 journal metadata payload size
- Various cleanups
- Various other fixes, improvements, and cleanups
* tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (146 commits)
ublk: fix tautological comparison warning in ublk_ctrl_reg_buf
scsi: bsg: fix buffer overflow in scsi_bsg_uring_cmd()
block: refactor blkdev_zone_mgmt_ioctl
MAINTAINERS: update ublk driver maintainer email
Documentation: ublk: address review comments for SHMEM_ZC docs
ublk: allow buffer registration before device is started
ublk: replace xarray with IDA for shmem buffer index allocation
ublk: simplify PFN range loop in __ublk_ctrl_reg_buf
ublk: verify all pages in multi-page bvec fall within registered range
ublk: widen ublk_shmem_buf_reg.len to __u64 for 4GB buffer support
xfs: use bio_await in xfs_zone_gc_reset_sync
block: add a bio_submit_or_kill helper
block: factor out a bio_await helper
block: unify the synchronous bi_end_io callbacks
xfs: fix number of GC bvecs
selftests/ublk: add read-only buffer registration test
selftests/ublk: add filesystem fio verify test for shmem_zc
selftests/ublk: add hugetlbfs shmem_zc test for loop target
selftests/ublk: add shared memory zero-copy test
selftests/ublk: add UBLK_F_SHMEM_ZC support for loop target
...
|
||
|
Linus Torvalds
|
b8f82cb0d8 |
Landlock update for v7.1-rc1
-----BEGIN PGP SIGNATURE----- iIYEABYKAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCadfgCxAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSl5cA/0QZjJ+4V2DVzJQM5qzmNK9He9uYaOs7F2Ks xRvg7IebAPwMEcVY+CVQxD+YGj08UgM753yx4CRbhsu4k5mowEEJDQ== =Lz9R -----END PGP SIGNATURE----- Merge tag 'landlock-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull Landlock update from Mickaël Salaün: "This adds a new Landlock access right for pathname UNIX domain sockets thanks to a new LSM hook, and a few fixes" * tag 'landlock-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (23 commits) landlock: Document fallocate(2) as another truncation corner case landlock: Document FS access right for pathname UNIX sockets selftests/landlock: Simplify ruleset creation and enforcement in fs_test selftests/landlock: Check that coredump sockets stay unrestricted selftests/landlock: Audit test for LANDLOCK_ACCESS_FS_RESOLVE_UNIX selftests/landlock: Test LANDLOCK_ACCESS_FS_RESOLVE_UNIX selftests/landlock: Replace access_fs_16 with ACCESS_ALL in fs_test samples/landlock: Add support for named UNIX domain socket restrictions landlock: Clarify BUILD_BUG_ON check in scoping logic landlock: Control pathname UNIX domain socket resolution by path landlock: Use mem_is_zero() in is_layer_masks_allowed() lsm: Add LSM hook security_unix_find landlock: Fix kernel-doc warning for pointer-to-array parameters landlock: Fix formatting in tsync.c landlock: Improve kernel-doc "Return:" section consistency landlock: Add missing kernel-doc "Return:" sections selftests/landlock: Fix format warning for __u64 in net_test selftests/landlock: Skip stale records in audit_match_record() selftests/landlock: Drain stale audit records on init selftests/landlock: Fix socket file descriptor leaks in audit helpers ... |
||
|
Linus Torvalds
|
ef3da345cc |
vfs-7.1-rc1.misc
Please consider pulling these changes from the signed vfs-7.1-rc1.misc tag.
Thanks!
Christian
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Merge tag 'vfs-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Features:
- coredump: add tracepoint for coredump events
- fs: hide file and bfile caches behind runtime const machinery
Fixes:
- fix architecture-specific compat_ftruncate64 implementations
- dcache: Limit the minimal number of bucket to two
- fs/omfs: reject s_sys_blocksize smaller than OMFS_DIR_START
- fs/mbcache: cancel shrink work before destroying the cache
- dcache: permit dynamic_dname()s up to NAME_MAX
Cleanups:
- remove or unexport unused fs_context infrastructure
- trivial ->setattr cleanups
- selftests/filesystems: Assume that TIOCGPTPEER is defined
- writeback: fix kernel-doc function name mismatch for wb_put_many()
- autofs: replace manual symlink buffer allocation in autofs_dir_symlink
- init/initramfs.c: trivial fix: FSM -> Finite-state machine
- fs: remove stale and duplicate forward declarations
- readdir: Introduce dirent_size()
- fs: Replace user_access_{begin/end} by scoped user access
- kernel: acct: fix duplicate word in comment
- fs: write a better comment in step_into() concerning .mnt assignment
- fs: attr: fix comment formatting and spelling issues"
* tag 'vfs-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (28 commits)
dcache: permit dynamic_dname()s up to NAME_MAX
fs: attr: fix comment formatting and spelling issues
fs: hide file and bfile caches behind runtime const machinery
fs: write a better comment in step_into() concerning .mnt assignment
proc: rename proc_notify_change to proc_setattr
proc: rename proc_setattr to proc_nochmod_setattr
affs: rename affs_notify_change to affs_setattr
adfs: rename adfs_notify_change to adfs_setattr
hfs: update comments on hfs_inode_setattr
kernel: acct: fix duplicate word in comment
fs: Replace user_access_{begin/end} by scoped user access
readdir: Introduce dirent_size()
coredump: add tracepoint for coredump events
fs: remove do_sys_truncate
fs: pass on FTRUNCATE_* flags to do_truncate
fs: fix archiecture-specific compat_ftruncate64
fs: remove stale and duplicate forward declarations
init/initramfs.c: trivial fix: FSM -> Finite-state machine
autofs: replace manual symlink buffer allocation in autofs_dir_symlink
fs/mbcache: cancel shrink work before destroying the cache
...
|
||
|
Linus Torvalds
|
07c3ef5822 |
vfs-7.1-rc1.pidfs
Please consider pulling these changes from the signed vfs-7.1-rc1.pidfs tag.
Thanks!
Christian
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Merge tag 'vfs-7.1-rc1.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull clone and pidfs updates from Christian Brauner:
"Add three new clone3() flags for pidfd-based process lifecycle
management.
CLONE_AUTOREAP:
CLONE_AUTOREAP makes a child process auto-reap on exit without ever
becoming a zombie. This is a per-process property in contrast to
the existing auto-reap mechanism via SA_NOCLDWAIT or SIG_IGN for
SIGCHLD which applies to all children of a given parent.
Currently the only way to automatically reap children is to set
SA_NOCLDWAIT or SIG_IGN on SIGCHLD. This is a parent-scoped
property affecting all children which makes it unsuitable for
libraries or applications that need selective auto-reaping of
specific children while still being able to wait() on others.
CLONE_AUTOREAP stores an autoreap flag in the child's
signal_struct. When the child exits do_notify_parent() checks this
flag and causes exit_notify() to transition the task directly to
EXIT_DEAD. Since the flag lives on the child it survives
reparenting: if the original parent exits and the child is
reparented to a subreaper or init the child still auto-reaps when
it eventually exits. This is cleaner than forcing the subreaper to
get SIGCHLD and then reaping it. If the parent doesn't care the
subreaper won't care. If there's a subreaper that would care it
would be easy enough to add a prctl() that either just turns back
on SIGCHLD and turns off auto-reaping or a prctl() that just
notifies the subreaper whenever a child is reparented to it.
CLONE_AUTOREAP can be combined with CLONE_PIDFD to allow the parent
to monitor the child's exit via poll() and retrieve exit status via
PIDFD_GET_INFO. Without CLONE_PIDFD it provides a fire-and-forget
pattern. No exit signal is delivered so exit_signal must be zero.
CLONE_THREAD and CLONE_PARENT are rejected: CLONE_THREAD because
autoreap is a process-level property, and CLONE_PARENT because an
autoreap child reparented via CLONE_PARENT could become an
invisible zombie under a parent that never calls wait().
The flag is not inherited by the autoreap process's own children.
Each child that should be autoreaped must be explicitly created
with CLONE_AUTOREAP.
CLONE_NNP:
CLONE_NNP sets no_new_privs on the child at clone time. Unlike
prctl(PR_SET_NO_NEW_PRIVS) which a process sets on itself,
CLONE_NNP allows the parent to impose no_new_privs on the child at
creation without affecting the parent's own privileges.
CLONE_THREAD is rejected because threads share credentials.
CLONE_NNP is useful on its own for any spawn-and-sandbox pattern
but was specifically introduced to enable unprivileged usage of
CLONE_PIDFD_AUTOKILL.
CLONE_PIDFD_AUTOKILL:
This flag ties a child's lifetime to the pidfd returned from
clone3(). When the last reference to the struct file created by
clone3() is closed the kernel sends SIGKILL to the child. A pidfd
obtained via pidfd_open() for the same process does not keep the
child alive and does not trigger autokill - only the specific
struct file from clone3() has this property. This is useful for
container runtimes, service managers, and sandboxed subprocess
execution - any scenario where the child must die if the parent
crashes or abandons the pidfd or just wants a throwaway helper
process.
CLONE_PIDFD_AUTOKILL requires both CLONE_PIDFD and CLONE_AUTOREAP.
It requires CLONE_PIDFD because the whole point is tying the
child's lifetime to the pidfd. It requires CLONE_AUTOREAP because a
killed child with no one to reap it would become a zombie - the
primary use case is the parent crashing or abandoning the pidfd so
no one is around to call waitpid(). CLONE_THREAD is rejected
because autokill targets a process not a thread.
If CLONE_NNP is specified together with CLONE_PIDFD_AUTOKILL an
unprivileged user may spawn a process that is autokilled. The child
cannot escalate privileges via setuid/setgid exec after being
spawned. If CLONE_PIDFD_AUTOKILL is specified without CLONE_NNP the
caller must have have CAP_SYS_ADMIN in its user namespace"
* tag 'vfs-7.1-rc1.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: check pidfd_info->coredump_code correctness
pidfds: add coredump_code field to pidfd_info
kselftest/coredump: reintroduce null pointer dereference
selftests/pidfd: add CLONE_PIDFD_AUTOKILL tests
selftests/pidfd: add CLONE_NNP tests
selftests/pidfd: add CLONE_AUTOREAP tests
pidfd: add CLONE_PIDFD_AUTOKILL
clone: add CLONE_NNP
clone: add CLONE_AUTOREAP
|
||
|
Linus Torvalds
|
c8db08110c |
vfs-7.1-rc1.xattr
Please consider pulling these changes from the signed vfs-7.1-rc1.xattr tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCadjZCgAKCRCRxhvAZXjc olWpAQCf//do9MtHmqTjgVfMIv18vw5woI8Bdx/X3m5S9e2D9gD/QddDnkFiVMmu txsT+N8BGuW+jbAkYwax5LnUFGUTYgY= =a4gm -----END PGP SIGNATURE----- Merge tag 'vfs-7.1-rc1.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs xattr updates from Christian Brauner: "This reworks the simple_xattr infrastructure and adds support for user.* extended attributes on sockets. The simple_xattr subsystem currently uses an rbtree protected by a reader-writer spinlock. This series replaces the rbtree with an rhashtable giving O(1) average-case lookup with RCU-based lockless reads. This sped up concurrent access patterns on tmpfs quite a bit and it's an overall easy enough conversion to do and gets rid or rwlock_t. The conversion is done incrementally: a new rhashtable path is added alongside the existing rbtree, consumers are migrated one at a time (shmem, kernfs, pidfs), and then the rbtree code is removed. All three consumers switch from embedded structs to pointer-based lazy allocation so the rhashtable overhead is only paid for inodes that actually use xattrs. With this infrastructure in place the series adds support for user.* xattrs on sockets. Path-based AF_UNIX sockets inherit xattr support from the underlying filesystem (e.g. tmpfs) but sockets in sockfs - that is everything created via socket() including abstract namespace AF_UNIX sockets - had no xattr support at all. The xattr_permission() checks are reworked to allow user.* xattrs on S_IFSOCK inodes. Sockfs sockets get per-inode limits of 128 xattrs and 128KB total value size matching the limits already in use for kernfs. The practical motivation comes from several directions. systemd and GNOME are expanding their use of Varlink as an IPC mechanism. For D-Bus there are tools like dbus-monitor that can observe IPC traffic across the system but this only works because D-Bus has a central broker. For Varlink there is no broker and there is currently no way to identify which sockets speak Varlink. With user.* xattrs on sockets a service can label its socket with the IPC protocol it speaks (e.g., user.varlink=1) and an eBPF program can then selectively capture traffic on those sockets. Enumerating bound sockets via netlink combined with these xattr labels gives a way to discover all Varlink IPC entrypoints for debugging and introspection. Similarly, systemd-journald wants to use xattrs on the /dev/log socket for protocol negotiation to indicate whether RFC 5424 structured syslog is supported or whether only the legacy RFC 3164 format should be used. In containers these labels are particularly useful as high-privilege or more complicated solutions for socket identification aren't available. The series comes with comprehensive selftests covering path-based AF_UNIX sockets, sockfs socket operations, per-inode limit enforcement, and xattr operations across multiple address families (AF_INET, AF_INET6, AF_NETLINK, AF_PACKET)" * tag 'vfs-7.1-rc1.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests/xattr: test xattrs on various socket families selftests/xattr: sockfs socket xattr tests selftests/xattr: path-based AF_UNIX socket xattr tests xattr: support extended attributes on sockets xattr,net: support limited amount of extended attributes on sockfs sockets xattr: move user limits for xattrs to generic infra xattr: switch xattr_permission() to switch statement xattr: add xattr_permission_error() xattr: remove rbtree-based simple_xattr infrastructure pidfs: adapt to rhashtable-based simple_xattrs kernfs: adapt to rhashtable-based simple_xattrs with lazy allocation shmem: adapt to rhashtable-based simple_xattrs with lazy allocation xattr: add rhashtable-based simple_xattr infrastructure xattr: add rcu_head and rhash_head to struct simple_xattr |
||
|
Cao Ruichuang
|
f8e0a5a174 |
selftests/ftrace: Quote check_requires comparisons
check_requires() compares requirement strings that can contain shell pattern characters such as '[' and ']'. Under /bin/sh, the unquoted test expressions can emit 'unexpected operator' warnings while parsing README-backed requirements. Quote the relevant comparisons and path checks so the helper handles those patterns without spurious shell warnings. Validated by rerunning fprobe_syntax_errors.tc and confirming the previous '/bin/sh: unexpected operator' lines disappear from the detailed ftracetest log. Signed-off-by: Cao Ruichuang <create0818@163.com> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20260408043212.8063-1-create0818@163.com Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Ricardo B. Marlière
|
7e47389142 |
selftests: Preserve subtarget failures in all/install
Track failures explicitly in the top-level selftests all/install loops. The current code multiplies `ret` by each sub-make exit status. For example, with `TARGETS=net`, the implicit `net/lib` dependency runs after `net`, so a failed `net` build can be followed by a successful `net/lib` build and reset the final result to success. Set `ret` to 1 on any non-zero sub-make exit code and keep it sticky, so the top-level make returns failure when any selected selftest target fails. Signed-off-by: Ricardo B. Marlière <rbm@suse.com> Link: https://lore.kernel.org/r/20260320-selftests-fixes-v1-5-79144f76be01@suse.com Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Ricardo B. Marlière
|
d6ea9f404b |
selftests/run_kselftest.sh: Allow choosing per-test log directory
The --per-test-log option currently hard-codes /tmp. However, the system under test will most likely have tmpfs mounted there. Since it's not clear which filenames the log files will have, the user should be able to specify a persistent directory to store the logs. Keeping those logs are important because the run_kselftest.sh runner will only yield KTAP output, trimming information that is otherwise available through running individual tests directly. Allow --per-test-log to take an optional directory argument. Keep the existing behaviour when the option is passed without an argument, but if a directory is provided, create it if needed, reject non-directory paths and non-writable directories, canonicalize it, and have runner.sh write per-test logs there instead of /tmp. This also makes relative paths safe by resolving them before the runner changes into a collection directory. Signed-off-by: Ricardo B. Marlière <rbm@suse.com> Link: https://lore.kernel.org/r/20260320-selftests-fixes-v1-4-79144f76be01@suse.com Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Ricardo B. Marlière
|
a82e076f4a |
selftests/run_kselftest.sh: Resolve BASE_DIR with pwd -P
run_kselftest.sh only needs to canonicalize the directory containing the script itself. Use shell-native path resolution for that by changing into the directory and calling pwd -P. This avoids depending on either realpath or readlink -f while still producing a physical absolute path for BASE_DIR. Signed-off-by: Ricardo B. Marlière <rbm@suse.com> Link: https://lore.kernel.org/r/20260320-selftests-fixes-v1-3-79144f76be01@suse.com Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Paolo Bonzini
|
6b80203187 |
- ESA nesting support
- 4k memslots - LPSW/E fix -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEwGNS88vfc9+v45Yq41TmuOI4ufgFAmncpfkACgkQ41TmuOI4 ufj4ehAA0fTpaA4VdUbF/uH1o4BLu/hElPXhJYnyDa6hUK0XiFS6bpouz50wTMz/ QjbmM+uCLKxVBK2FPE0cPj3iobvlfTTgP0tNkgwHDFlLfuZ9914cxYc4HYPrRJ/y Ey+6TT4ynkf2mihiLFHKKuBPi4DjfC3rAjy8ZHOnNh5ro+00uXVCGhssBUKvXNST X45q6JaN6p3eDVjC/ov/K593BJgMoW5x/kDmoyICuhDYs+8TiY+n+61BdVARKdtu 3+vwkjQ/mrl+IwJMvfeH+nO2qnjREc6EZd9YTJOCheThhELw0tX4jeha4PldeeZY fg+8uObSmbzxcmsvWRGTuVpobEBpOqRP9sdADxF77dq1ExFXwthXFT8AQw8NzI2k leU8DQqXVUOkykmpvacV96AGlYrRWb47806TdVM+fJmLkvmt0llS/MK6fQNz+Jlb okFx1kLnqSKz7x0O6Avgz/+F6yjFAwTp7mwKmd8bHzKCkLCYq8Gl6WPxx/peFY0P dwEwq0k89Wld7gjkAXwtwjttIrQcwghacqBCJAu4cA/3NnM2DCAPf3gSiY1PoYPX 06ZUYBzLH8wQJRZLToWpYvH9xOOfMmTETx7LDsYuMztxyesS+ReR/dVkCCei/2oD KeoGD0vBA0d8/wW+ZmB6YYxUiWT0WOllb/9s26NG/7lCTY1UgLI= =YTUc -----END PGP SIGNATURE----- Merge tag 'kvm-s390-next-7.1-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD - ESA nesting support - 4k memslots - LPSW/E fix |
||
|
Paolo Bonzini
|
92cdeac6a4 |
KVM SVM changes for 7.1
- Fix and optimize IRQ window inhibit handling for AVIC (the tracking needs to
be per-vCPU, e.g. so that KVM doesn't prematurely re-enable AVIC if multiple
vCPUs have to-be-injected IRQs).
- Fix an undefined behavior warning where a crafty userspace can read the
"avic" module param before it's fully initialized.
- Fix a (likely benign) bug in the "OS-visible workarounds" handling, where
KVM could clobber state when enabling virtualization on multiple CPUs in
parallel, and clean up and optimize the code.
- Drop a WARN in KVM_MEMORY_ENCRYPT_REG_REGION where KVM complains about a
"too large" size based purely on user input, and clean up and harden the
related pinning code.
- Disallow synchronizing a VMSA of an already-launched/encrypted vCPU, as
doing so for an SNP guest will trigger an RMP violation #PF and crash the
host.
- Protect all of sev_mem_enc_register_region() with kvm->lock to ensure
sev_guest() is stable for the entire of the function.
- Lock all vCPUs when synchronizing VMSAs for SNP guests to ensure the VMSA
page isn't actively being used.
- Overhaul KVM's APIs for detecting SEV+ guests so that VM-scoped queries are
required to hold kvm->lock (KVM has had multiple bugs due "is SEV?" checks
becoming stale), enforced by lockdep. Add and use vCPU-scoped APIs when
possible/appropriate, as all checks that originate from a vCPU are
guaranteed to be stable.
- Convert a pile of kvm->lock SEV code to guard().
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Merge tag 'kvm-x86-svm-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM SVM changes for 7.1
- Fix and optimize IRQ window inhibit handling for AVIC (the tracking needs to
be per-vCPU, e.g. so that KVM doesn't prematurely re-enable AVIC if multiple
vCPUs have to-be-injected IRQs).
- Fix an undefined behavior warning where a crafty userspace can read the
"avic" module param before it's fully initialized.
- Fix a (likely benign) bug in the "OS-visible workarounds" handling, where
KVM could clobber state when enabling virtualization on multiple CPUs in
parallel, and clean up and optimize the code.
- Drop a WARN in KVM_MEMORY_ENCRYPT_REG_REGION where KVM complains about a
"too large" size based purely on user input, and clean up and harden the
related pinning code.
- Disallow synchronizing a VMSA of an already-launched/encrypted vCPU, as
doing so for an SNP guest will trigger an RMP violation #PF and crash the
host.
- Protect all of sev_mem_enc_register_region() with kvm->lock to ensure
sev_guest() is stable for the entire of the function.
- Lock all vCPUs when synchronizing VMSAs for SNP guests to ensure the VMSA
page isn't actively being used.
- Overhaul KVM's APIs for detecting SEV+ guests so that VM-scoped queries are
required to hold kvm->lock (KVM has had multiple bugs due "is SEV?" checks
becoming stale), enforced by lockdep. Add and use vCPU-scoped APIs when
possible/appropriate, as all checks that originate from a vCPU are
guaranteed to be stable.
- Convert a pile of kvm->lock SEV code to guard().
|
||
|
Linus Torvalds
|
28483203f7 |
RCU changes for v7.1
NOCB CPU management:
- Consolidate rcu_nocb_cpu_offload() and rcu_nocb_cpu_deoffload() to reduce
code duplication.
- Extract nocb_bypass_needs_flush() helper to reduce duplication in NOCB
bypass path.
rcutorture/torture infrastructure:
- Add NOCB01 config for RCU_LAZY torture testing.
- Add NOCB02 config for NOCB poll mode testing.
- Add TRIVIAL-PREEMPT config for textbook-style preemptible RCU torture.
- Test call_srcu() with preemption both disabled and enabled.
- Remove kvm-check-branches.sh in favor of kvm-series.sh.
- Make hangs more visible in torture.sh output.
- Add informative message for tests without a recheck file.
- Fix numeric test comparison in srcu_lockdep.sh.
- Use torture_shutdown_init() in refscale and rcuscale instead of open-coded
shutdown functions.
- Fix modulo-zero error in torture_hrtimeout_ns().
SRCU:
- Fix SRCU read flavor macro comments.
- Fix s/they disables/they disable/ typo in srcu_read_unlock_fast().
RCU Tasks:
- Document that RCU Tasks Trace grace periods now imply RCU grace periods.
- Remove unnecessary smp_store_release() in cblist_init_generic().
RCU stall:
- Add BOOTPARAM_RCU_STALL_PANIC Kconfig option to allow triggering a kernel
panic on RCU stall via kernel boot parameter.
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Merge tag 'rcu.2026.03.31a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Joel Fernandes:
"NOCB CPU management:
- Consolidate rcu_nocb_cpu_offload() and rcu_nocb_cpu_deoffload() to
reduce code duplication
- Extract nocb_bypass_needs_flush() helper to reduce duplication in
NOCB bypass path
rcutorture/torture infrastructure:
- Add NOCB01 config for RCU_LAZY torture testing
- Add NOCB02 config for NOCB poll mode testing
- Add TRIVIAL-PREEMPT config for textbook-style preemptible RCU
torture
- Test call_srcu() with preemption both disabled and enabled
- Remove kvm-check-branches.sh in favor of kvm-series.sh
- Make hangs more visible in torture.sh output
- Add informative message for tests without a recheck file
- Fix numeric test comparison in srcu_lockdep.sh
- Use torture_shutdown_init() in refscale and rcuscale instead of
open-coded shutdown functions
- Fix modulo-zero error in torture_hrtimeout_ns().
SRCU:
- Fix SRCU read flavor macro comments
- Fix s/they disables/they disable/ typo in srcu_read_unlock_fast()
RCU Tasks:
- Document that RCU Tasks Trace grace periods now imply RCU grace
periods
- Remove unnecessary smp_store_release() in cblist_init_generic()"
* tag 'rcu.2026.03.31a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux:
rcutorture: Test call_srcu() with preemption disabled and not
rcu: Add BOOTPARAM_RCU_STALL_PANIC Kconfig option
torture: Avoid modulo-zero error in torture_hrtimeout_ns()
rcu/nocb: Extract nocb_bypass_needs_flush() to reduce duplication
rcu/nocb: Consolidate rcu_nocb_cpu_offload/deoffload functions
rcu-tasks: Remove unnecessary smp_store_release() in cblist_init_generic()
rcutorture: Add NOCB02 config for nocb poll mode testing
rcutorture: Add NOCB01 config for RCU_LAZY torture testing
rcu-tasks: Document that RCU Tasks Trace grace periods now imply RCU grace periods
srcu: Fix s/they disables/they disable/ typo in srcu_read_unlock_fast()
srcu: Fix SRCU read flavor macro comments
rcuscale: Ditch rcu_scale_shutdown in favor of torture_shutdown_init()
refscale: Ditch ref_scale_shutdown in favor of torture_shutdown_init()
rcutorture: Fix numeric "test" comparison in srcu_lockdep.sh
torture: Print informative message for test without recheck file
torture: Make hangs more visible in torture.sh output
kvm-check-branches.sh: Remove in favor of kvm-series.sh
rcutorture: Add a textbook-style trivial preemptible RCU
|
||
|
Kuba Piecuch
|
7e311bafb9 |
tools/sched_ext: Add explicit cast from void* in RESIZE_ARRAY()
This fixes the following compilation error when using the header from C++ code: error: assigning to 'struct scx_flux__data_uei_dump *' from incompatible type 'void *' Signed-off-by: Kuba Piecuch <jpiecuch@google.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
||
|
Kuba Piecuch
|
4615361f0b |
sched_ext: Make string params of __ENUM_set() const
A small change to improve type safety/const correctness.
__COMPAT_read_enum() already has const string parameters.
It fixes a warning when using the header in C++ code:
error: ISO C++11 does not allow conversion from string literal
to 'char *' [-Werror,-Wwritable-strings]
That's because string literals have type char[N] in C and
const char[N] in C++.
Signed-off-by: Kuba Piecuch <jpiecuch@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
|
||
|
Tejun Heo
|
3d3667f265 |
tools/sched_ext: Kick home CPU for stranded tasks in scx_qmap
scx_qmap uses global BPF queue maps (BPF_MAP_TYPE_QUEUE) that any CPU's ops.dispatch() can pop from. When a CPU pops a task that can't run on it (e.g. a pinned per-CPU kthread), it inserts the task into SHARED_DSQ. consume_dispatch_q() then skips the task due to affinity mismatch, leaving it stranded until some CPU in its allowed mask calls ops.dispatch(). This doesn't cause indefinite stalls -- the periodic tick keeps firing (can_stop_idle_tick() returns false when softirq is pending) -- but can cause noticeable scheduling delays. After inserting to SHARED_DSQ, kick the task's home CPU if this CPU can't run it. There's a small race window where the home CPU can enter idle before the kick lands -- if a per-CPU kthread like ksoftirqd is the stranded task, this can trigger a "NOHZ tick-stop error" warning. The kick arrives shortly after and the home CPU drains the task. Rather than fully eliminating the warning by routing pinned tasks to local or global DSQs, the current code keeps them going through the normal BPF queue path and documents the race and the resulting warning in detail. scx_qmap is an example scheduler and having tasks go through the usual dispatch path is useful for testing. The detailed comment also serves as a reference for other schedulers that may encounter similar warnings. Reviewed-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
||
|
Linus Torvalds
|
fdcbb1bc06 |
Merge branch 'nocache-cleanup'
This series cleans up some of the special user copy functions naming and semantics. In particular, get rid of the (very traditional) double underscore names and behavior: the whole "optimize away the range check" model has been largely excised from the other user accessors because it's so subtle and can be unsafe, but also because it's just not a relevant optimization any more. To do that, a couple of drivers that misused the "user" copies as kernel copies in order to get non-temporal stores had to be fixed up, but that kind of code should never have been allowed anyway. The x86-only "nocache" version was also renamed to more accurately reflect what it actually does. This was all done because I looked at this code due to a report by Jann Horn, and I just couldn't stand the inconsistent naming, the horrible semantics, and the random misuse of these functions. This code should probably be cleaned up further, but it's at least slightly closer to normal semantics. I had a more intrusive series that went even further in trying to normalize the semantics, but that ended up hitting so many other inconsistencies between different architectures in this area (eg 'size_t' vs 'unsigned long' vs 'int' as size arguments, and various iovec check differences that Vasily Gorbik pointed out) that I ended up with this more limited version that fixed the worst of the issues. Reported-by: Jann Horn <jannh@google.com> Tested-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/all/CAHk-=wgg1QVWNWG-UCFo1hx0zqrPnB3qhPzUTrWNft+MtXQXig@mail.gmail.com/ * nocache-cleanup: x86-64/arm64/powerpc: clean up and rename __copy_from_user_flushcache x86: rename and clean up __copy_from_user_inatomic_nocache() x86-64: rename misleadingly named '__copy_user_nocache()' function |
||
|
Marc Harvey
|
d3870724eb |
selftests: net: Add tests for team driver decoupled tx and rx control
Use ping and tcpdump to verify that independent rx and tx enablement of team driver member interfaces works as intended. Signed-off-by: Marc Harvey <marcharvey@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260409-teaming-driver-internal-v7-10-f47e7589685d@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Marc Harvey
|
10407eebe8 |
selftests: net: Add test for enablement of ports with teamd
There are no tests that verify enablement and disablement of team driver ports with teamd. This should work even with changes to the enablement option, so it is important to test. This test sets up an active-backup network configuration across two network namespaces, and tries to send traffic while changing which link is the active one. Also increase the team test timeout to 300 seconds, because gracefully killing teamd can take 30 seconds for each instance. Signed-off-by: Marc Harvey <marcharvey@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260409-teaming-driver-internal-v7-5-f47e7589685d@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Marc Harvey
|
05e352444b |
selftests: net: Add tests for failover of team-aggregated ports
There are currently no kernel tests that verify the effect of setting the enabled team driver option. In a followup patch, there will be changes to this option, so it will be important to make sure it still behaves as it does now. The test verifies that tcp continues to work across two different team devices in separate network namespaces, even when member links are manually disabled. Signed-off-by: Marc Harvey <marcharvey@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260409-teaming-driver-internal-v7-4-f47e7589685d@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Paolo Bonzini
|
ea8bc95fbb |
KVM nested SVM changes for 7.1 (with one common x86 fix)
- To minimize the probability of corrupting guest state, defer KVM's
non-architectural delivery of exception payloads (e.g. CR2 and DR6) until
consumption of the payload is imminent, and force delivery of the payload
in all paths where userspace saves relevant state.
- Use vcpu->arch.cr2 when updating vmcb12's CR2 on nested #VMEXIT to fix a
bug where L2's CR2 can get corrupted after a save/restore, e.g. if the VM
is migrated while L2 is faulting in memory.
- Fix a class of nSVM bugs where some fields written by the CPU are not
synchronized from vmcb02 to cached vmcb12 after VMRUN, and so are not
up-to-date when saved by KVM_GET_NESTED_STATE.
- Fix a class of bugs where the ordering between KVM_SET_NESTED_STATE and
KVM_SET_{S}REGS could cause vmcb02 to be incorrectly initialized after
save+restore.
- Add a variety of missing nSVM consistency checks.
- Fix several bugs where KVM failed to correctly update VMCB fields on nested
#VMEXIT.
- Fix several bugs where KVM failed to correctly synthesize #UD or #GP for
SVM-related instructions.
- Add support for save+restore of virtualized LBRs (on SVM).
- Refactor various helpers and macros to improve clarity and (hopefully) make
the code easier to maintain.
- Aggressively sanitize fields when copying from vmcb12 to guard against
unintentionally allowing L1 to utilize yet-to-be-defined features.
- Fix several bugs where KVM botched rAX legality checks when emulating SVM
instructions. Note, KVM is still flawed in that KVM doesn't address size
prefix overrides for 64-bit guests; this should probably be documented as a
KVM erratum.
- Fail emulation of VMRUN/VMLOAD/VMSAVE if mapping vmcb12 fails instead of
somewhat arbitrarily synthesizing #GP (i.e. don't bastardize AMD's already-
sketchy behavior of generating #GP if for "unsupported" addresses).
- Cache all used vmcb12 fields to further harden against TOCTOU bugs.
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Merge tag 'kvm-x86-nested-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM nested SVM changes for 7.1 (with one common x86 fix)
- To minimize the probability of corrupting guest state, defer KVM's
non-architectural delivery of exception payloads (e.g. CR2 and DR6) until
consumption of the payload is imminent, and force delivery of the payload
in all paths where userspace saves relevant state.
- Use vcpu->arch.cr2 when updating vmcb12's CR2 on nested #VMEXIT to fix a
bug where L2's CR2 can get corrupted after a save/restore, e.g. if the VM
is migrated while L2 is faulting in memory.
- Fix a class of nSVM bugs where some fields written by the CPU are not
synchronized from vmcb02 to cached vmcb12 after VMRUN, and so are not
up-to-date when saved by KVM_GET_NESTED_STATE.
- Fix a class of bugs where the ordering between KVM_SET_NESTED_STATE and
KVM_SET_{S}REGS could cause vmcb02 to be incorrectly initialized after
save+restore.
- Add a variety of missing nSVM consistency checks.
- Fix several bugs where KVM failed to correctly update VMCB fields on nested
#VMEXIT.
- Fix several bugs where KVM failed to correctly synthesize #UD or #GP for
SVM-related instructions.
- Add support for save+restore of virtualized LBRs (on SVM).
- Refactor various helpers and macros to improve clarity and (hopefully) make
the code easier to maintain.
- Aggressively sanitize fields when copying from vmcb12 to guard against
unintentionally allowing L1 to utilize yet-to-be-defined features.
- Fix several bugs where KVM botched rAX legality checks when emulating SVM
instructions. Note, KVM is still flawed in that KVM doesn't address size
prefix overrides for 64-bit guests; this should probably be documented as a
KVM erratum.
- Fail emulation of VMRUN/VMLOAD/VMSAVE if mapping vmcb12 fails instead of
somewhat arbitrarily synthesizing #GP (i.e. don't bastardize AMD's already-
sketchy behavior of generating #GP if for "unsupported" addresses).
- Cache all used vmcb12 fields to further harden against TOCTOU bugs.
|
||
|
Paolo Bonzini
|
c13008ed3d |
KVM selftests changes for 7.1
- Add support for Hygon CPUs in KVM selftests.
- Fix a bug in the MSR test where it would get false failures on AMD/Hygon
CPUs with exactly one of RDPID or RDTSCP.
- Add an MADV_COLLAPSE testcase for guest_memfd as a regression test for a
bug where the kernel would attempt to collapse guest_memfd folios against
KVM's will.
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Merge tag 'kvm-x86-selftests-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM selftests changes for 7.1
- Add support for Hygon CPUs in KVM selftests.
- Fix a bug in the MSR test where it would get false failures on AMD/Hygon
CPUs with exactly one of RDPID or RDTSCP.
- Add an MADV_COLLAPSE testcase for guest_memfd as a regression test for a
bug where the kernel would attempt to collapse guest_memfd folios against
KVM's will.
|
||
|
Paolo Bonzini
|
e74c3a8891 |
KVM/arm64 updates for 7.1
* New features: - Add support for tracing in the standalone EL2 hypervisor code, which should help both debugging and performance analysis. This comes with a full infrastructure for 'remote' trace buffers that can be exposed by non-kernel entities such as firmware. - Add support for GICv5 Per Processor Interrupts (PPIs), as the starting point for supporting the new GIC architecture in KVM. - Finally add support for pKVM protected guests, with anonymous memory being used as a backing store. About time! * Improvements and bug fixes: - Rework the dreaded user_mem_abort() function to make it more maintainable, reducing the amount of state being exposed to the various helpers and rendering a substantial amount of state immutable. - Expand the Stage-2 page table dumper to support NV shadow page tables on a per-VM basis. - Tidy up the pKVM PSCI proxy code to be slightly less hard to follow. - Fix both SPE and TRBE in non-VHE configurations so that they do not generate spurious, out of context table walks that ultimately lead to very bad HW lockups. - A small set of patches fixing the Stage-2 MMU freeing in error cases. - Tighten-up accepted SMC immediate value to be only #0 for host SMCCC calls. - The usual cleanups and other selftest churn. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmnWdswACgkQI9DQutE9 ekNYvBAAxj5Zmsx8sJ2CYDTJc2w4XkEjSgDugA+J/s0TMgrzExeBlWCstdhVTncy 68nwOjQl3TotnIrt7q36kko9u7IdD0pHNrk34NtlggLjHfB61n9SNcAA6j4F6zJa GFkHpJSrSnZuUPqapkDnlyhuPkgTIAkEUk2Am9siksSfY4HvRyHZJm2FTdxsdIBn NN9wvQqw2wefTXOQ8gS+oHbPVp1cPbwrF2a3EhzXXv/6W3mUBstXgsijgo07UzCp W6vHCv2wqHbHdf67z3Q3hL+VXlVH6oHlyW99/swqISvqRkH/iSB90+oUojnMRrSm yB6Wmhh8jboCaajWMJhG+veZw+7GMXU4nOrGd1rbnY8cwRl/TQ5YibhRm7DIdvjO xeUluTLJ0NdweQUwE2k4OlgKOuGang3E2p0clmkUO4SstA48MdqR/kpST6guIlWw U5syuNaaaiuwP5QOi9qZmMCNmQ3ZfnZG3nseJFdoyGjhVhf5jyQyv4Du9vGZQFF/ Zkg7yTqC4OWiC+3GkW9YYAySM1MyetivLtd47PGzHPTdtaZziWhNvQ0y+8QjQ+R+ CJNvyS/DvsT7epSya4sLgMP1ZAlih9xkz5sQ6k8NJLBYYXi0v33qwqditErgLLyj S4Ci4WNhHHWIusvCVM7JUBkH0AElpmi506f7F6iHoFLlkYR4t9U= =/SuQ -----END PGP SIGNATURE----- Merge tag 'kvmarm-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for 7.1 * New features: - Add support for tracing in the standalone EL2 hypervisor code, which should help both debugging and performance analysis. This comes with a full infrastructure for 'remote' trace buffers that can be exposed by non-kernel entities such as firmware. - Add support for GICv5 Per Processor Interrupts (PPIs), as the starting point for supporting the new GIC architecture in KVM. - Finally add support for pKVM protected guests, with anonymous memory being used as a backing store. About time! * Improvements and bug fixes: - Rework the dreaded user_mem_abort() function to make it more maintainable, reducing the amount of state being exposed to the various helpers and rendering a substantial amount of state immutable. - Expand the Stage-2 page table dumper to support NV shadow page tables on a per-VM basis. - Tidy up the pKVM PSCI proxy code to be slightly less hard to follow. - Fix both SPE and TRBE in non-VHE configurations so that they do not generate spurious, out of context table walks that ultimately lead to very bad HW lockups. - A small set of patches fixing the Stage-2 MMU freeing in error cases. - Tighten-up accepted SMC immediate value to be only #0 for host SMCCC calls. - The usual cleanups and other selftest churn. |
||
|
Paolo Bonzini
|
05578316ca |
LoongArch KVM changes for v7.1
1. Use CSR_CRMD_PLV in kvm_arch_vcpu_in_kernel(). 2. Let vcpu_is_preempted() a macro & some enhanments. 3. Add DMSINTC irqchip in kernel support. 4. Add KVM PMU test cases for tools/selftests. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmnXiPMWHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImehVBD/4v8Y6S4Sxkc/EBUDKbPwLGGhGR aZEe2dzHr10C/mx7Q2cYwjKhR9bpgPcBe0xiEomxAopLwK15qMai2mnNRX6SJA8P 00J/3xWpKR6XsgsMv2KF9XvqdT1SlnzOC04D2v/wbkjlebWaCRIZgWG7yoRTHRIj TOpzf7XFBOnNpuzg94DjXsgAlSOo0qbHAMGMgbQ3k7OKzomAIlD4ljCyPD+JdvCz T7jW7n4Nho1SoOYPeWwXyxbIeorgtRB3JQ8RakMCjkJYyChICe1BGXJ66qeTLizd G5GOhiePtU5LLXQlRUU/uOLmxsJ5jZjJWs3tfsQOFz9f2i8JmF5nSw3DqmpTaQSF IF3v+3Iu9o+1dUBPsZVUjPWORWuRSFrXnnrUF3JPBZazXPwJHq8Gvbt3z6QFE8RO Z+Z9zDDcVrSWfJkYV3uHocPPnkCNTcIUdT2QFAWZYkBQCVlbbKET43dY0MbeFR9R n+mQcQVJOfp/a5oXwQyiiov6c67JX9yTT8wCB3tyPJVsLsiCOR8hN9UHSiQBc+Sx TLCuSkt0uVgwkTEM+pnJqLofRZGc9A6z8RPubwCgyxJp3+YPX5d3FtgHYcdNmAfK fQ2ILp7K0L52FcjVSr3uV8QacqUMhxLknODdjBhBcU0sh2V7yJPd9zoJq41xjtLy e8PC1D6NHGneLiuCCA== =zbdN -----END PGP SIGNATURE----- Merge tag 'loongarch-kvm-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD LoongArch KVM changes for v7.1 1. Use CSR_CRMD_PLV in kvm_arch_vcpu_in_kernel(). 2. Let vcpu_is_preempted() a macro & some enhanments. 3. Add DMSINTC irqchip in kernel support. 4. Add KVM PMU test cases for tools/selftests. |
||
|
Paolo Bonzini
|
d880d2a9c6 |
KVM/riscv changes for 7.1
- Fix steal time shared memory alignment checks - Fix vector context allocation leak - Fix array out-of-bounds in pmu_ctr_read() and pmu_fw_ctr_read_hi() - Fix double-free of sdata in kvm_pmu_clear_snapshot_area() - Fix integer overflow in kvm_pmu_validate_counter_mask() - Fix shift-out-of-bounds in make_xfence_request() - Fix lost write protection on huge pages during dirty logging - Split huge pages during fault handling for dirty logging - Skip CSR restore if VCPU is reloaded on the same core - Implement kvm_arch_has_default_irqchip() for KVM selftests - Factored-out ISA checks into separate sources - Added hideleg to struct kvm_vcpu_config - Factored-out VCPU config into separate sources - Support configuration of per-VM HGATP mode from KVM user space -----BEGIN PGP SIGNATURE----- iQIyBAABCgAdFiEEZdn75s5e6LHDQ+f/rUjsVaLHLAcFAmnbi74ACgkQrUjsVaLH LAejGw/3XRqexEOrxJ74GvAylGtGkQRuTw003mhIBIyshosYw6PiOSHEuAu7TQLc N074wt0QSfwbmQmeNaa0q3gIqb7Sp6gC0Eidurv1zHXuKSaAGbppnKD0VOZibtm6 CK4+HQqBXFxf2mMeJSQX7+EOWNO+rf2jfw80c3SiKTnPE8mtb8Xfn3G6Zw22UmBZ gOrDrW4IijNKNkrBItb8V1IJgsfFIdUY+1Il2n1MSRuuqQL+tJcmHWXEPs7GdfMf 9siV7asCfhKdf6xDys/Px42DBgQxLASG72Q8X2cESCxkO1kDplJZAt1AitAGfzXL bk20uAWikO0j7/Su93pWDOwMxRqb8c9dIMrnyRsCpmx1ovWA/odEnkrhslS1lafN hpUr6DWmTrE+2I6PW9UgBRAbleMomtK411fLhZh28PSyvp42sxG8841PwUNd/hFP lfcFO/ksJS7HFxQK5RaGZaMUuSMsgtZAu5P7zGGZm9uQh60eaHRF1vFcA+c5GAHe hibOegHjdYMkcLFqbVJDegU6a5+kohO3I8R21WXItp+VQjGvezOWuTDJtcR+jPAJ RNe4R1QeRgbsIwRuP9+fm6QnLeTPmBfxkCPFS1FvzrimLWskcQxqPWUq+eDvNDp+ EdnE1KPjPsTykWq2baiG70+0xnetHP4ZGIrWwOQNOREJPEGOqg== =LbnE -----END PGP SIGNATURE----- Merge tag 'kvm-riscv-7.1-1' of https://github.com/kvm-riscv/linux into HEAD KVM/riscv changes for 7.1 - Fix steal time shared memory alignment checks - Fix vector context allocation leak - Fix array out-of-bounds in pmu_ctr_read() and pmu_fw_ctr_read_hi() - Fix double-free of sdata in kvm_pmu_clear_snapshot_area() - Fix integer overflow in kvm_pmu_validate_counter_mask() - Fix shift-out-of-bounds in make_xfence_request() - Fix lost write protection on huge pages during dirty logging - Split huge pages during fault handling for dirty logging - Skip CSR restore if VCPU is reloaded on the same core - Implement kvm_arch_has_default_irqchip() for KVM selftests - Factored-out ISA checks into separate sources - Added hideleg to struct kvm_vcpu_config - Factored-out VCPU config into separate sources - Support configuration of per-VM HGATP mode from KVM user space |
||
|
Sun Jian
|
f1cc94665d |
selftests/bpf: cover short IPv4/IPv6 inputs with adjust_room
Add a selftest covering ETH_HLEN-sized IPv4/IPv6 EtherType inputs for bpf_prog_test_run_skb(). Reuse a single zero-initialized struct ethhdr eth_hlen and set eth_hlen.h_proto from the per-test h_proto field. Also add a dedicated tc_adjust_room program and route the short IPv4/IPv6 cases to it, so the selftest actually exercises the bpf_skb_adjust_room() path from the report. Signed-off-by: Sun Jian <sun.jian.kdev@gmail.com> Link: https://lore.kernel.org/r/20260408034623.180320-3-sun.jian.kdev@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Alexei Starovoitov
|
47687a29b2
|
selftests/bpf: Use memfd_create instead of shm_open in cgroup_iter_memcg
Replace shm_open/shm_unlink with memfd_create in the shmem subtest. shm_open requires /dev/shm to be mounted, which is not always available in test environments, causing the test to fail with ENOENT. memfd_create creates an anonymous shmem-backed fd without any filesystem dependency while exercising the same shmem accounting path. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20260412210636.47516-1-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> |
||
|
Alexei Starovoitov
|
fa2942918a |
Merge patch series "bpf: Fix OOB in pcpu_init_value and add a test"
xulang <xulang@uniontech.com> says: ==================== Fix OOB read when copying element from a BPF_MAP_TYPE_CGROUP_STORAGE map to another pcpu map with the same value_size that is not rounded up to 8 bytes, and add a test case to reproduce the issue. The root cause is that pcpu_init_value() uses copy_map_value_long() which rounds up the copy size to 8 bytes, but CGROUP_STORAGE map values are not 8-byte aligned (e.g., 4-byte). This causes a 4-byte OOB read when the copy is performed. ==================== Link: https://lore.kernel.org/r/7653EEEC2BAB17DF+20260402073948.2185396-1-xulang@uniontech.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Lang Xu
|
171609f047 |
selftests/bpf: Add test for cgroup storage OOB read
Add a test case to reproduce the out-of-bounds read issue when copying from a cgroup storage map to a pcpu map with a value_size not rounded up to 8 bytes. The test creates: 1. A CGROUP_STORAGE map with 4-byte value (not 8-byte aligned) 2. A LRU_PERCPU_HASH map with 4-byte value (same size) When a socket is created in the cgroup, the BPF program triggers bpf_map_update_elem() which calls copy_map_value_long(). This function rounds up the copy size to 8 bytes, but the cgroup storage buffer is only 4 bytes, causing an OOB read (before the fix). Signed-off-by: Lang Xu <xulang@uniontech.com> Link: https://lore.kernel.org/r/D63BF0DBFF1EA122+20260402074236.2187154-2-xulang@uniontech.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Paul Chaignon
|
2fefa9c81a |
selftests/bpf: Fix reg_bounds to match new tnum-based refinement
Commit |
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|
Emil Tsalapatis
|
4c5f21d4df |
selftests/bpf: Add tests for non-arena/arena operations
Add a selftest that ensures instructions with arena source and non-arena destination registers are accepted by the verifier. Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Acked-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20260412174546.18684-3-emil@etsalapatis.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Menglong Dong
|
f0e16ac716 |
bpftool: add missing fsession to the usage and docs of bpftool
Add the fsession attach type to the usage of bpftool in do_help(). Meanwhile, add it to the bash-completion and bpftool-prog.rst too. Acked-by: Leon Hwang <leon.hwang@linux.dev> Acked-by: Quentin Monnet <qmo@kernel.org> Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Link: https://lore.kernel.org/r/20260412060346.142007-4-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Menglong Dong
|
9fd19e3ed7 |
bpf: add missing fsession to the verifier log
The fsession attach type is missed in the verifier log in check_get_func_ip(), bpf_check_attach_target() and check_attach_btf_id(). Update them to make the verifier log proper. Meanwhile, update the corresponding selftests. Acked-by: Leon Hwang <leon.hwang@linux.dev> Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Link: https://lore.kernel.org/r/20260412060346.142007-2-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Jiayuan Chen
|
04013c3ca0 |
selftests/bpf: Add tests for sock_ops ctx access with same src/dst register
Add selftests to verify SOCK_OPS_GET_SK() and SOCK_OPS_GET_FIELD() correctly return NULL/zero when dst_reg == src_reg and is_fullsock == 0. Three subtests are included: - get_sk: ctx->sk with same src/dst register (SOCK_OPS_GET_SK) - get_field: ctx->snd_cwnd with same src/dst register (SOCK_OPS_GET_FIELD) - get_sk_diff_reg: ctx->sk with different src/dst register (baseline) Each BPF program uses inline asm (__naked) to force specific register allocation, reads is_fullsock first, then loads the field using the same (or different) register. The test triggers TCP_NEW_SYN_RECV via a TCP handshake and checks that the result is NULL/zero when is_fullsock == 0. Reviewed-by: Sun Jian <sun.jian.kdev@gmail.com> Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20260407022720.162151-3-jiayuan.chen@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Ian Rogers
|
fab205e492 |
perf sample: Fix documentation typo
s/PEF/PERF/ Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
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|
Hangbin Liu
|
594ba44771 |
tools: ynl: ethtool: add --dbg-small-recv option
Add a --dbg-small-recv debug option to control the recv() buffer size used by YNL, matching the same option already present in cli.py. This is useful if user need to get large netlink message. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20260408-b4-ynl_ethtool-v2-3-7623a5e8f70b@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Hangbin Liu
|
1c43d471a5 |
tools: ynl: ethtool: use doit instead of dumpit for per-device GET
Rename the local helper doit() to do_set() and dumpit() to do_get() to better reflect their purpose. Convert do_get() to use ynl.do() with an explicit device header instead of ynl.dump() followed by client-side filtering. This is more efficient as the kernel only processes and returns data for the requested device, rather than dumping all devices across the netns. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20260408-b4-ynl_ethtool-v2-2-7623a5e8f70b@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Hangbin Liu
|
22ef8a263c |
tools: ynl: move ethtool.py to selftest
We have converted all the samples to selftests. This script is the last piece of random "PoC" code we still have lying around. Let's move it to tests. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20260408-b4-ynl_ethtool-v2-1-7623a5e8f70b@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Joe Damato
|
5d3b12d1a2 |
selftests: drv-net: Add USO test
Add a simple test for USO. Tests both ipv4 and ipv6 with several full segments and a partial segment. Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Joe Damato <joe@dama.to> Link: https://patch.msgid.link/20260408230607.2019402-11-joe@dama.to Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Florian Westphal
|
6111954266 |
selftests: netfilter: nft_tproxy.sh: adjust to socat changes
Like |
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Jakub Kicinski
|
e46ff213f7 |
selftests: net: py: add test case filtering and listing
When developing new test cases and reproducing failures in existing ones we currently have to run the entire test which can take minutes to finish. Add command line options for test selection, modeled after kselftest_harness.h: -l list tests (filtered, if filters were specified) -t name include test -T name exclude test Since we don't have as clean separation into fixture / variant / test as kselftest_harness this is not really a 1 to 1 match. We have to lean on glob patterns instead. Like in kselftest_harness filters are evaluated in order, first match wins. If only exclusions are specified everything else is included and vice versa. Glob patterns (*, ?, [) are supported in addition to exact matching. Reviewed-by: Willem de Bruijn <willemb@google.com> Tested-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20260410013921.1710295-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Alexei Starovoitov
|
ae3f8ca2ba |
bpf: Move checks for reserved fields out of the main pass
Check reserved fields of each insn once in a prepass instead of repeatedly rechecking them during the main verifier pass. Link: https://lore.kernel.org/r/20260411200932.41797-1-alexei.starovoitov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Eduard Zingerman
|
335a6ca041 |
selftests/bpf: inline TEST_TAG constants in test_loader.c
After str_has_pfx() refactoring each TEST_TAG_* / TEST_BTF_PATH constant is used exactly once. Since constant definitions are not shared between BPF-side bpf_misc.h and userspace side test_loader.c, there is no need in the additional redirection layer. Acked-by: Ihor Solodrai <ihor.solodrai@linux.dev> Reviewed-by: Puranjay Mohan <puranjay@kernel.org> Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260410-selftests-global-tags-ordering-v2-4-c566ec9781bf@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Eduard Zingerman
|
713db9fd03 |
selftests/bpf: impose global ordering for test decl_tags
Impose global ordering for all decl tags used by test_loader.c based
tests (__success, __failure, __msg, etc):
- change every tag to expand as
__attribute__((btf_decl_tag("comment:" XSTR(__COUNTER__) ...)))
- change parse_test_spec() to collect all decl tags before
processing and sort them using strverscmp().
The ordering is necessary for gcc-bpf.
Neither GCC nor the C standard defines the order in which function
attributes are consumed. While Clang tends to preserve definition order,
GCC may process them out of sequence. This inconsistency causes BPF
tests with multiple __msg entries to fail when compiled with GCC.
Signed-off-by: Cupertino Miranda <cupertino.miranda@oracle.com>
Reviewed-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260410-selftests-global-tags-ordering-v2-3-c566ec9781bf@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Eduard Zingerman
|
5160e584c3 |
selftests/bpf: make str_has_pfx return pointer past the prefix
Change str_has_pfx() to return a pointer to the first character after the prefix, thus eliminating the repetitive (s + sizeof(PFX) - 1) patterns. Acked-by: Ihor Solodrai <ihor.solodrai@linux.dev> Acked-by: Mykyta Yatsenko <yatsenko@meta.com> Reviewed-by: Puranjay Mohan <puranjay@kernel.org> Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260410-selftests-global-tags-ordering-v2-2-c566ec9781bf@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Eduard Zingerman
|
cdd54fe98c |
selftests/bpf: fix __jited_unpriv tag name
__jited_unpriv was using "test_jited=" as its tag name, same as the
priv variant __jited. Fix by using "test_jited_unpriv=".
Fixes:
|
||
|
Zongmin Zhou
|
cfcd7b29e5 |
usbip: tools: add hint when no exported devices are found
When refresh_exported_devices() finds no devices, it's helpful to inform users about potential causes. This could be due to: 1. The usbip driver module is not loaded. 2. No devices have been exported yet. Add an informational message to guide users when ndevs == 0. Also update the condition in usbip_host_driver_open() and usbip_device_driver_open() to check both ret and ndevs == 0, and change err() to info(). Message visibility by scenario: - usbipd (console mode): Show on console/serial, this allows instant visibility for debugging. - usbipd -D (daemon mode): Message logged to syslog, can keep logs for later traceability in production. Also can use "journalctl -f" to trace on console. Suggested-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/20260402083204.53179-1-min_halo@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Amery Hung
|
78ee02a966 |
selftests/bpf: Remove kmalloc tracing from local storage create bench
Remove the raw_tp/kmalloc BPF program and its associated reporting from the local storage create benchmark. The kmalloc count per create is not a useful metric as different code paths use different allocators (e.g. kmalloc_nolock vs kzalloc), introducing noise that makes the number hard to interpret. Keep total_creates in the summary output as it is useful for normalizing perf statistics collected alongside the benchmark. Signed-off-by: Amery Hung <ameryhung@gmail.com> Link: https://lore.kernel.org/r/20260411015419.114016-2-ameryhung@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Daniel Borkmann
|
497fa510ee |
selftests/bpf: Add test for add_const base_id consistency
Add a test to verifier_linked_scalars that exercises the base_id consistency check for BPF_ADD_CONST linked scalars during state pruning. With the fix, pruning fails and the verifier discovers the true branch's R3 is too wide for the stack access. # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_linked_scalars [...] #613/22 verifier_linked_scalars/scalars_stale_delta_from_cleared_id:OK #613/23 verifier_linked_scalars/scalars_stale_delta_from_cleared_id_alu32:OK #613/24 verifier_linked_scalars/linked scalars: add_const base_id must be consistent for pruning:OK #613 verifier_linked_scalars:OK Summary: 1/24 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20260410232651.559778-2-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
e774d5f1bc |
RISC-V updates for v7.0-rc8
Before v7.0 is released, fix a few issues with the CFI patchset,
merged earlier in v7.0-rc, that primarily affect interfaces to
non-kernel code:
- Improve the prctl() interface for per-task indirect branch landing
pad control to expand abbreviations and to resemble the speculation
control prctl() interface
- Expand the "LP" and "SS" abbreviations in the ptrace uapi header
file to "branch landing pad" and "shadow stack", to improve
readability
- Fix a typo in a CFI-related macro name in the ptrace uapi header
file
- Ensure that the indirect branch tracking state and shadow stack
state are unlocked immediately after an exec() on the new task so
that libc subsequently can control it
- While working in this area, clean up the kernel-internal,
cross-architecture prctl() function names by expanding the
abbreviations mentioned above
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Merge tag 'riscv-for-linus-v7.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"Before v7.0 is released, fix a few issues with the CFI patchset,
merged earlier in v7.0-rc, that primarily affect interfaces to
non-kernel code:
- Improve the prctl() interface for per-task indirect branch landing
pad control to expand abbreviations and to resemble the speculation
control prctl() interface
- Expand the "LP" and "SS" abbreviations in the ptrace uapi header
file to "branch landing pad" and "shadow stack", to improve
readability
- Fix a typo in a CFI-related macro name in the ptrace uapi header
file
- Ensure that the indirect branch tracking state and shadow stack
state are unlocked immediately after an exec() on the new task so
that libc subsequently can control it
- While working in this area, clean up the kernel-internal,
cross-architecture prctl() function names by expanding the
abbreviations mentioned above"
* tag 'riscv-for-linus-v7.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
prctl: cfi: change the branch landing pad prctl()s to be more descriptive
riscv: ptrace: cfi: expand "SS" references to "shadow stack" in uapi headers
prctl: rename branch landing pad implementation functions to be more explicit
riscv: ptrace: expand "LP" references to "branch landing pads" in uapi headers
riscv: cfi: clear CFI lock status in start_thread()
riscv: ptrace: cfi: fix "PRACE" typo in uapi header
|
||
|
Andy Roulin
|
20ae6d76e3 |
selftests: net: add bridge STP mode selection test
Add a selftest for the IFLA_BR_STP_MODE bridge attribute that verifies: 1. stp_mode defaults to auto on new bridges 2. stp_mode can be toggled between user, kernel, and auto 3. Changing stp_mode while STP is active is rejected with -EBUSY 4. Re-setting the same stp_mode while STP is active succeeds 5. stp_mode user in a network namespace yields userspace STP (stp_state=2) 6. stp_mode kernel forces kernel STP (stp_state=1) 7. stp_mode auto in a netns preserves traditional fallback to kernel STP 8. stp_mode and stp_state can be set atomically in a single message 9. stp_mode persists across STP disable/enable cycles Test 5 is the key use case: it demonstrates that userspace STP can now be enabled in non-init network namespaces by setting stp_mode to user before enabling STP. Test 8 verifies the atomic usage pattern where both attributes are set in a single netlink message, which is supported because br_changelink() processes IFLA_BR_STP_MODE before IFLA_BR_STP_STATE. The test gracefully skips if the installed iproute2 does not support the stp_mode attribute. Assisted-by: Claude:claude-opus-4-6 Reviewed-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Andy Roulin <aroulin@nvidia.com> Link: https://patch.msgid.link/20260405205224.3163000-4-aroulin@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Dimitri Daskalakis
|
a66374a3eb |
selftests: drv-net: ntuple: Add dst-ip, src-port, dst-port fields
Extend the ntuple flow steering test to cover dst-ip, src-port, and dst-port fields. The test supports arbitrary combinations of the fields, for now we test src_ip/dst_ip, and src_ip/dst_ip/src_port/dst_port. The tests currently match full fields, but we can consider adding support for masked fields in the future. TAP version 13 1..24 ok 1 ntuple.queue.tcp4.src_ip ok 2 ntuple.queue.tcp4.dst_ip ok 3 ntuple.queue.tcp4.src_port ok 4 ntuple.queue.tcp4.dst_port ok 5 ntuple.queue.tcp4.src_ip.dst_ip ok 6 ntuple.queue.tcp4.src_ip.dst_ip.src_port.dst_port ok 7 ntuple.queue.udp4.src_ip ok 8 ntuple.queue.udp4.dst_ip ok 9 ntuple.queue.udp4.src_port ok 10 ntuple.queue.udp4.dst_port ok 11 ntuple.queue.udp4.src_ip.dst_ip ok 12 ntuple.queue.udp4.src_ip.dst_ip.src_port.dst_port ok 13 ntuple.queue.tcp6.src_ip ok 14 ntuple.queue.tcp6.dst_ip ok 15 ntuple.queue.tcp6.src_port ok 16 ntuple.queue.tcp6.dst_port ok 17 ntuple.queue.tcp6.src_ip.dst_ip ok 18 ntuple.queue.tcp6.src_ip.dst_ip.src_port.dst_port ok 19 ntuple.queue.udp6.src_ip ok 20 ntuple.queue.udp6.dst_ip ok 21 ntuple.queue.udp6.src_port ok 22 ntuple.queue.udp6.dst_port ok 23 ntuple.queue.udp6.src_ip.dst_ip ok 24 ntuple.queue.udp6.src_ip.dst_ip.src_port.dst_port # Totals: pass:24 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Dimitri Daskalakis <daskald@meta.com> Link: https://patch.msgid.link/20260407164954.2977820-3-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Dimitri Daskalakis
|
18589df934 |
selftests: drv-net: Add ntuple (NFC) flow steering test
Add a test for ethtool NFC (ntuple) flow steering rules. The test creates an ntuple rule matching on various flow fields and verifies that traffic is steered to the correct queue. The test forces all traffic to queue 0 via the indirection table, then installs an ntuple rule to steer select traffic to a specific queue. The test then verifies the expected number of packets is received on the queue. This test has variants for TCP/UDP over IPv4/IPv6, with rules matching the source IP. Additional match fields will be added in the next commit. TAP version 13 1..4 ok 1 ntuple.queue.tcp4.src_ip ok 2 ntuple.queue.udp4.src_ip ok 3 ntuple.queue.tcp6.src_ip ok 4 ntuple.queue.udp6.src_ip # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Dimitri Daskalakis <daskald@meta.com> Link: https://patch.msgid.link/20260407164954.2977820-2-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Alexei Starovoitov
|
2cb27158ad |
bpf: poison dead stack slots
As a sanity check poison stack slots that stack liveness determined to be dead, so that any read from such slots will cause program rejection. If stack liveness logic is incorrect the poison can cause valid program to be rejected, but it also will prevent unsafe program to be accepted. Allow global subprogs "read" poisoned stack slots. The static stack liveness determined that subprog doesn't read certain stack slots, but sizeof(arg_type) based global subprog validation isn't accurate enough to know which slots will actually be read by the callee, so it needs to check full sizeof(arg_type) at the caller. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260410-patch-set-v4-14-5d4eecb343db@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Alexei Starovoitov
|
27417e5eb9 |
selftests/bpf: add new tests for static stack liveness analysis
Add a bunch of new tests to verify the static stack liveness analysis. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260410-patch-set-v4-13-5d4eecb343db@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Alexei Starovoitov
|
957c30c067 |
selftests/bpf: adjust verifier_log buffers
The new liveness analysis in liveness.c adds verbose output at BPF_LOG_LEVEL2, making the verifier log for good_prog exceed the 1024-byte reference buffer. When the reference is truncated in fixed mode, the rolling mode captures the actual tail of the full log, which doesn't match the truncated reference. The fix is to increase the buffer sizes in the test. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260410-patch-set-v4-12-5d4eecb343db@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Alexei Starovoitov
|
b42eb55f6c |
selftests/bpf: update existing tests due to liveness changes
The verifier cleans all dead registers and stack slots in the current state. Adjust expected output in tests or insert dummy stack/register reads. Also update verifier_live_stack tests to adhere to new logging scheme. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260410-patch-set-v4-11-5d4eecb343db@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Alan Maguire
|
0e4dc6fbdd |
selftests/bpf: Add BTF sanitize test covering BTF layout
Add test that fakes up a feature cache of supported BPF features to simulate an older kernel that does not support BTF layout information. Ensure that BTF is sanitized correctly to remove layout info between types and strings, and that all offsets and lengths are adjusted appropriately. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Link: https://lore.kernel.org/r/20260408165735.843763-3-alan.maguire@oracle.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Alan Maguire
|
7419fcadd1 |
libbpf: Allow use of feature cache for non-token cases
Allow bpf object feat_cache assignment in BPF selftests to simulate missing features via inclusion of libbpf_internal.h and use of bpf_object_set_feat_cache() and bpf_object__sanitize_btf() to test BTF sanitization for cases where missing features are simulated. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Link: https://lore.kernel.org/r/20260408165735.843763-2-alan.maguire@oracle.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Venkat Rao Bagalkote
|
aacee214d5 |
selftests/bpf: Remove test_access_variable_array
test_access_variable_array relied on accessing struct sched_domain::span to validate variable-length array handling via BTF. Recent scheduler refactoring removed or hid this field, causing the test to fail to build. Given that this test depends on internal scheduler structures that are subject to refactoring, and equivalent variable-length array coverage already exists via bpf_testmod-based tests, remove test_access_variable_array entirely. Link: https://lore.kernel.org/all/177434340048.1647592.8586759362906719839.tip-bot2@tip-bot2/ Signed-off-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Tested-by: Naveen Kumar Thummalapenta <naveen66@linux.ibm.com> Link: https://lore.kernel.org/r/20260410105404.91126-1-venkat88@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Leo Yan
|
4e03d6494f |
perf arm_spe: Improve SIMD flags setting
Fill in ASE and SME operations for the SIMD arch field.
Also set the predicate flags for SVE and SME, but differences between
them: SME does not have a predicate flag, so the setting is based on
events. SVE provides a predicate flag to indicate whether the predicate
is disabled, which allows it to be distinguished into four cases: full
predicates, empty predicates, fully predicated, and disabled predicates.
After:
perf report -s +simd
...
0.06% 0.06% sve-test sve-test [.] setz [p] SVE
0.06% 0.06% sve-test [kernel.kallsyms] [k] do_raw_spin_lock
0.06% 0.06% sve-test sve-test [.] getz [p] SVE
0.06% 0.06% sve-test [kernel.kallsyms] [k] timekeeping_advance
0.06% 0.06% sve-test sve-test [.] getz [d] SVE
0.06% 0.06% sve-test [kernel.kallsyms] [k] update_load_avg
0.06% 0.06% sve-test sve-test [.] getz [e] SVE
0.05% 0.05% sve-test sve-test [.] setz [e] SVE
0.05% 0.05% sve-test [kernel.kallsyms] [k] update_curr
0.05% 0.05% sve-test sve-test [.] setz [d] SVE
0.05% 0.05% sve-test [kernel.kallsyms] [k] do_raw_spin_unlock
0.05% 0.05% sve-test [kernel.kallsyms] [k] timekeeping_update_from_shadow.constprop.0
0.05% 0.05% sve-test sve-test [.] getz [f] SVE
0.05% 0.05% sve-test sve-test [.] setz [f] SVE
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
|
||
|
Leo Yan
|
54940f1526 |
perf report: Update document for SIMD flags
Update SIMD architecture and predicate flags. Reviewed-by: James Clark <james.clark@linaro.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Leo Yan <leo.yan@arm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Leo Yan
|
0f648fc245 |
perf sort: Sort disabled and full predicated flags
According to the Arm ARM (ARM DDI 0487, L.a), section D18.2.6 "Events packet", apart from the empty predicate and partial predicates, an SVE or SME operation can be predicate-disabled or full predicated. To provide complete results, introduce two predicate types for these cases. Reviewed-by: James Clark <james.clark@linaro.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Leo Yan <leo.yan@arm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Leo Yan
|
faaf70f938 |
perf sort: Support sort ASE and SME
Support sort Advance SIMD extension (ASE) and SME. Reviewed-by: James Clark <james.clark@linaro.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Leo Yan <leo.yan@arm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Linus Torvalds
|
96463e4e02 |
Turbostat Fixes
Fix a memory allocation issue that could corrupt output values or SEGV Fix a perf initilization issue that could exit on some HW + kernels. Minor fixes. -----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEE67dNfPFP+XUaA73mB9BFOha3NhcFAmnY/PkUHGxlbi5icm93 bkBpbnRlbC5jb20ACgkQB9BFOha3NhcTIA//QsbmJV7qddOe/kOhS7izRyVjuaLQ QIyIrSLSa5+49oT4uRhZxuzDm6N6zVykFf+yxK5E2TSf+JfvzfwjZJQEgUPqHtkt vietoJheI4voMgmDQk39oxQmYyxmXuD3TRgvY+EN+QEIuWFA3/J9YaOulQMICrRy TX3juoZ3mxUpO8LC6+t3Yd8Kl1JEl3cKj3LdX7cMIchLM2cSTlbVFGSP0y5f0mu/ m54+JLSeSCFyqfin8rkgLYar8+AIIrHVak57rQ3qKBUOfoJlMaJEgXC4/sKdEzAW zKld2cFfzzXd2LnShN9Su7L9VCF09POKpD7P9bk9rDcp/MfsOmlKRctRvnY4T7Bq si+AflAYzYtHlq0LQbw2tHsKLFnqIJziDzz+YHl9UxcK0X17Gkp32NSQOX7Djvdu g/HDMHudnyoq0dAObieQgevYAWYmfKTNeQpJk+d+27X9HTzNXCDe70D774+DhM73 ViDU5zPrFBc1Z9ScQmgbe4z2N3MvzWGkodJRseb1v44ClH+Z6sCG4RYxYpxj0Zyu 0rR5GBb6ymuDUAQYEVuk2/F05bgmp3oXhoaddC+bO115XGEfe9sR7PBk3p9LYSM5 KirznZsjE8qI8GUXdL4EztTtIUJ5sx9CWb5FqP6k7XovrPCoMhSsbbo0vUbLCK4C eh0+iPh3sAf0NZs= =xJLy -----END PGP SIGNATURE----- Merge tag 'turbostat-fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat fixes from Len Brown: - Fix a memory allocation issue that could corrupt output values or SEGV - Fix a perf initilization issue that could exit on some HW + kernels - Minor fixes * tag 'turbostat-fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: Allow execution to continue after perf_l2_init() failure tools/power turbostat: Fix delimiter bug in print functions tools/power turbostat: Fix --show/--hide for individual cpuidle counters tools/power turbostat: Fix incorrect format variable tools/power turbostat: Consistently use print_float_value() tools/power/turbostat: Fix microcode patch level output for AMD/Hygon tools/power turbostat: Eliminate unnecessary data structure allocation tools/power turbostat: Fix swidle header vs data display tools/power turbostat: Fix illegal memory access when SMT is present and disabled |
||
|
Catalin Marinas
|
480a9e57cc |
Merge branches 'for-next/misc', 'for-next/tlbflush', 'for-next/ttbr-macros-cleanup', 'for-next/kselftest', 'for-next/feat_lsui', 'for-next/mpam', 'for-next/hotplug-batched-tlbi', 'for-next/bbml2-fixes', 'for-next/sysreg', 'for-next/generic-entry' and 'for-next/acpi', remote-tracking branches 'arm64/for-next/perf' and 'arm64/for-next/read-once' into for-next/core
* arm64/for-next/perf:
: Perf updates
perf/arm-cmn: Fix resource_size_t printk specifier in arm_cmn_init_dtc()
perf/arm-cmn: Fix incorrect error check for devm_ioremap()
perf: add NVIDIA Tegra410 C2C PMU
perf: add NVIDIA Tegra410 CPU Memory Latency PMU
perf/arm_cspmu: nvidia: Add Tegra410 PCIE-TGT PMU
perf/arm_cspmu: nvidia: Add Tegra410 PCIE PMU
perf/arm_cspmu: Add arm_cspmu_acpi_dev_get
perf/arm_cspmu: nvidia: Add Tegra410 UCF PMU
perf/arm_cspmu: nvidia: Rename doc to Tegra241
perf/arm-cmn: Stop claiming entire iomem region
arm64: cpufeature: Use pmuv3_implemented() function
arm64: cpufeature: Make PMUVer and PerfMon unsigned
KVM: arm64: Read PMUVer as unsigned
* arm64/for-next/read-once:
: Fixes for __READ_ONCE() with CONFIG_LTO=y
arm64, compiler-context-analysis: Permit alias analysis through __READ_ONCE() with CONFIG_LTO=y
arm64: Optimize __READ_ONCE() with CONFIG_LTO=y
* for-next/misc:
: Miscellaneous cleanups/fixes
arm64: rsi: use linear-map alias for realm config buffer
arm64: Kconfig: fix duplicate word in CMDLINE help text
arm64: mte: Skip TFSR_EL1 checks and barriers in synchronous tag check mode
arm64/hwcap: Generate the KERNEL_HWCAP_ definitions for the hwcaps
arm64: kexec: Remove duplicate allocation for trans_pgd
arm64: mm: Use generic enum pgtable_level
arm64: scs: Remove redundant save/restore of SCS SP on entry to/from EL0
arm64: remove ARCH_INLINE_*
* for-next/tlbflush:
: Refactor the arm64 TLB invalidation API and implementation
arm64: mm: __ptep_set_access_flags must hint correct TTL
arm64: mm: Provide level hint for flush_tlb_page()
arm64: mm: Wrap flush_tlb_page() around __do_flush_tlb_range()
arm64: mm: More flags for __flush_tlb_range()
arm64: mm: Refactor __flush_tlb_range() to take flags
arm64: mm: Refactor flush_tlb_page() to use __tlbi_level_asid()
arm64: mm: Simplify __flush_tlb_range_limit_excess()
arm64: mm: Simplify __TLBI_RANGE_NUM() macro
arm64: mm: Re-implement the __flush_tlb_range_op macro in C
arm64: mm: Inline __TLBI_VADDR_RANGE() into __tlbi_range()
arm64: mm: Push __TLBI_VADDR() into __tlbi_level()
arm64: mm: Implicitly invalidate user ASID based on TLBI operation
arm64: mm: Introduce a C wrapper for by-range TLB invalidation
arm64: mm: Re-implement the __tlbi_level macro as a C function
* for-next/ttbr-macros-cleanup:
: Cleanups of the TTBR1_* macros
arm64/mm: Directly use TTBRx_EL1_CnP
arm64/mm: Directly use TTBRx_EL1_ASID_MASK
arm64/mm: Describe TTBR1_BADDR_4852_OFFSET
* for-next/kselftest:
: arm64 kselftest updates
selftests/arm64: Implement cmpbr_sigill() to hwcap test
* for-next/feat_lsui:
: Futex support using FEAT_LSUI instructions to avoid toggling PAN
arm64: armv8_deprecated: Disable swp emulation when FEAT_LSUI present
arm64: Kconfig: Add support for LSUI
KVM: arm64: Use CAST instruction for swapping guest descriptor
arm64: futex: Support futex with FEAT_LSUI
arm64: futex: Refactor futex atomic operation
KVM: arm64: kselftest: set_id_regs: Add test for FEAT_LSUI
KVM: arm64: Expose FEAT_LSUI to guests
arm64: cpufeature: Add FEAT_LSUI
* for-next/mpam: (40 commits)
: Expose MPAM to user-space via resctrl:
: - Add architecture context-switch and hiding of the feature from KVM.
: - Add interface to allow MPAM to be exposed to user-space using resctrl.
: - Add errata workaoround for some existing platforms.
: - Add documentation for using MPAM and what shape of platforms can use resctrl
arm64: mpam: Add initial MPAM documentation
arm_mpam: Quirk CMN-650's CSU NRDY behaviour
arm_mpam: Add workaround for T241-MPAM-6
arm_mpam: Add workaround for T241-MPAM-4
arm_mpam: Add workaround for T241-MPAM-1
arm_mpam: Add quirk framework
arm_mpam: resctrl: Call resctrl_init() on platforms that can support resctrl
arm64: mpam: Select ARCH_HAS_CPU_RESCTRL
arm_mpam: resctrl: Add empty definitions for assorted resctrl functions
arm_mpam: resctrl: Update the rmid reallocation limit
arm_mpam: resctrl: Add resctrl_arch_rmid_read()
arm_mpam: resctrl: Allow resctrl to allocate monitors
arm_mpam: resctrl: Add support for csu counters
arm_mpam: resctrl: Add monitor initialisation and domain boilerplate
arm_mpam: resctrl: Add kunit test for control format conversions
arm_mpam: resctrl: Add support for 'MB' resource
arm_mpam: resctrl: Wait for cacheinfo to be ready
arm_mpam: resctrl: Add rmid index helpers
arm_mpam: resctrl: Convert to/from MPAMs fixed-point formats
arm_mpam: resctrl: Hide CDP emulation behind CONFIG_EXPERT
...
* for-next/hotplug-batched-tlbi:
: arm64/mm: Enable batched TLB flush in unmap_hotplug_range()
arm64/mm: Reject memory removal that splits a kernel leaf mapping
arm64/mm: Enable batched TLB flush in unmap_hotplug_range()
* for-next/bbml2-fixes:
: Fixes for realm guest and BBML2_NOABORT
arm64: mm: Remove pmd_sect() and pud_sect()
arm64: mm: Handle invalid large leaf mappings correctly
arm64: mm: Fix rodata=full block mapping support for realm guests
* for-next/sysreg:
: arm64 sysreg updates
arm64/sysreg: Update ID_AA64SMFR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64ZFR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64FPFR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64ISAR2_EL1 description to DDI0601 2025-12
arm64/sysreg: Update ID_AA64ISAR0_EL1 description to DDI0601 2025-12
arm64/sysreg: Update SMIDR_EL1 to DDI0601 2025-06
* for-next/generic-entry:
: More arm64 refactoring towards using the generic entry code
arm64: Check DAIF (and PMR) at task-switch time
arm64: entry: Use split preemption logic
arm64: entry: Use irqentry_{enter_from,exit_to}_kernel_mode()
arm64: entry: Consistently prefix arm64-specific wrappers
arm64: entry: Don't preempt with SError or Debug masked
entry: Split preemption from irqentry_exit_to_kernel_mode()
entry: Split kernel mode logic from irqentry_{enter,exit}()
entry: Move irqentry_enter() prototype later
entry: Remove local_irq_{enable,disable}_exit_to_user()
entry: Fix stale comment for irqentry_enter()
* for-next/acpi:
: arm64 ACPI updates
ACPI: AGDI: fix missing newline in error message
|
||
|
David Arcari
|
ba893caead |
tools/power turbostat: Allow execution to continue after perf_l2_init() failure
Currently, if perf_l2_init() fails turbostat exits after issuing the following error (which was encountered on AlderLake): turbostat: perf_l2_init(cpu0, 0x0, 0xff24) REFS: Invalid argument This occurs because perf_l2_init() calls err(). However, the code has been written in such a manner that it is able to perform cleanup and continue. Therefore, this issue can be addressed by changing the appropriate calls to err() to warnx(). Additionally, correct the PMU type arguments passed to the warning strings in the ecore and lcore blocks so the logs accurately reflect the failing counter type. Signed-off-by: David Arcari <darcari@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com> |
||
|
Rafael J. Wysocki
|
83e990310d |
Merge branch 'pm-cpufreq'
Merge cpufreq updates for 7.1-rc1:
- Update qcom-hw DT bindings to include Eliza hardware (Abel Vesa)
- Update cpufreq-dt-platdev blocklist (Faruque Ansari)
- Minor updates to driver and dt-bindings for Tegra (Thierry Reding,
Rosen Penev)
- Add MAINTAINERS entry for CPPC driver (Viresh Kumar)
- Add support for new features: CPPC performance priority, Dynamic EPP,
Raw EPP, and new unit tests for them to amd-pstate (Gautham Shenoy,
Mario Limonciello)
- Fix sysfs files being present when HW missing and broken/outdated
documentation in the amd-pstate driver (Ninad Naik, Gautham Shenoy)
- Pass the policy to cpufreq_driver->adjust_perf() to avoid using
cpufreq_cpu_get() in the .adjust_perf() callback in amd-pstate which
leads to a scheduling-while-atomic bug (K Prateek Nayak)
- Clean up dead code in Kconfig for cpufreq (Julian Braha)
- Remove max_freq_req update for pre-existing cpufreq policy and add a
boost_freq_req QoS request to save the boost constraint instead of
overwriting the last scaling_max_freq constraint (Pierre Gondois)
- Embed cpufreq QoS freq_req objects in cpufreq policy so they all
are allocated in one go along with the policy to simplify lifetime
rules and avoid error handling issues (Viresh Kumar)
- Use DMI max speed when CPPC is unavailable in the acpi-cpufreq
scaling driver (Henry Tseng)
- Switch policy_is_shared() in cpufreq to using cpumask_nth() instead
of cpumask_weight() because the former is more efficient (Yury Norov)
- Use sysfs_emit() in sysfs show functions for cpufreq governor
attributes (Thorsten Blum)
- Update intel_pstate to stop returning an error when "off" is written
to its status sysfs attribute while the driver is already off (Fabio
De Francesco)
- Include current frequency in the debug message printed by
__cpufreq_driver_target() (Pengjie Zhang)
* pm-cpufreq: (38 commits)
cpufreq/amd-pstate: Add POWER_SUPPLY select for dynamic EPP
MAINTAINERS: amd-pstate: Step down as maintainer, add Prateek as reviewer
cpufreq: Pass the policy to cpufreq_driver->adjust_perf()
cpufreq/amd-pstate: Pass the policy to amd_pstate_update()
cpufreq/amd-pstate-ut: Add a unit test for raw EPP
cpufreq/amd-pstate: Add support for raw EPP writes
cpufreq/amd-pstate: Add support for platform profile class
cpufreq/amd-pstate: add kernel command line to override dynamic epp
cpufreq/amd-pstate: Add dynamic energy performance preference
Documentation: amd-pstate: fix dead links in the reference section
cpufreq/amd-pstate: Cache the max frequency in cpudata
Documentation/amd-pstate: Add documentation for amd_pstate_floor_{freq,count}
Documentation/amd-pstate: List amd_pstate_prefcore_ranking sysfs file
Documentation/amd-pstate: List amd_pstate_hw_prefcore sysfs file
amd-pstate-ut: Add a testcase to validate the visibility of driver attributes
amd-pstate-ut: Add module parameter to select testcases
amd-pstate: Introduce a tracepoint trace_amd_pstate_cppc_req2()
amd-pstate: Add sysfs support for floor_freq and floor_count
amd-pstate: Add support for CPPC_REQ2 and FLOOR_PERF
x86/cpufeatures: Add AMD CPPC Performance Priority feature.
...
|
||
|
fangqiurong
|
dcd47f27c0 |
selftests/sched_ext: Fix wrong DSQ ID in peek_dsq error message
The error path after scx_bpf_create_dsq(real_dsq_id, ...) was reporting test_dsq_id instead of real_dsq_id in the error message, which would mislead debugging. Signed-off-by: fangqiurong <fangqiurong@kylinos.cn> Signed-off-by: Tejun Heo <tj@kernel.org> |
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|
Hangbin Liu
|
42f9b4c6ef |
tools: ynl: tests: fix leading space on Makefile target
The ../generated/protos.a rule had a spurious leading space before the
target name. In make, target rules must start at column 0; only recipe
lines are indented with a tab. The extra space caused make to misparse
the rule.
Remove the leading space to match the style of the adjacent
../lib/ynl.a rule.
Fixes:
|
||
|
Jakub Kicinski
|
3d2c3d2eea |
selftests: net: py: explicitly forbid multiple ksft_run() calls
People (do people still write code or is it all AI?) seem to not get that ksft_run() can only be called once. If we call it multiple times KTAP parsers will likely cut off after the first batch has finished. Link: https://patch.msgid.link/20260408221952.819822-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Cosmin Ratiu
|
26555673bc |
selftests: Add MACsec VLAN propagation traffic test
Add VLAN filter propagation tests through offloaded MACsec devices via actual traffic. The tests create MACsec tunnels with matching SAs on both endpoints, stack VLANs on top, and verify connectivity with ping. Covered: - Offloaded MACsec with VLAN (filters propagate to HW) - Software MACsec with VLAN (no HW filter propagation) - Offload on/off toggle and verifying traffic still works On netdevsim this makes use of the VLAN filter debugfs file to actually validate that filters are applied/removed correctly. On real hardware the traffic should validate actual VLAN filter propagation. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20260408115240.1636047-4-cratiu@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Cosmin Ratiu
|
e1ab601bb2 |
selftests: Migrate nsim-only MACsec tests to Python
Move MACsec offload API and ethtool feature tests from tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh to tools/testing/selftests/drivers/net/macsec.py using the NetDrvEnv framework so tests can run against both netdevsim (default) and real hardware (NETIF=ethX). As some real hardware requires MACsec to use encryption, add that to the tests. Netdevsim-specific limit checks (max SecY, max RX SC) were moved into separate test cases to avoid failures on real hardware. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20260408115240.1636047-2-cratiu@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Jakub Kicinski
|
1508922588 |
Merge branch 'netkit-support-for-io_uring-zero-copy-and-af_xdp'
Daniel Borkmann says: ==================== netkit: Support for io_uring zero-copy and AF_XDP Containers use virtual netdevs to route traffic from a physical netdev in the host namespace. They do not have access to the physical netdev in the host and thus can't use memory providers or AF_XDP that require reconfiguring/restarting queues in the physical netdev. This patchset adds the concept of queue leasing to virtual netdevs that allow containers to use memory providers and AF_XDP at native speed. Leased queues are bound to a real queue in a physical netdev and act as a proxy. Memory providers and AF_XDP operations take an ifindex and queue id, so containers would pass in an ifindex for a virtual netdev and a queue id of a leased queue, which then gets proxied to the underlying real queue. We have implemented support for this concept in netkit and tested the latter against Nvidia ConnectX-6 (mlx5) as well as Broadcom BCM957504 (bnxt_en) 100G NICs. For more details see the individual patches. ==================== Link: https://patch.msgid.link/20260402231031.447597-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
David Wei
|
65d657d806 |
selftests/net: Add queue leasing tests with netkit
Add extensive selftests for netkit queue leasing, using io_uring zero copy test binary inside of a netns with netkit. This checks that memory providers can be bound against virtual queues in a netkit within a netns that are leasing from a physical netdev in the default netns. Also add various test cases around corner cases for the queue creation itself as well as queue info dumping and teardown in case of netkit in device pair and single mode. Signed-off-by: David Wei <dw@davidwei.uk> Co-developed-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://patch.msgid.link/20260402231031.447597-15-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Daniel Borkmann
|
7789c6bb76 |
net: Add queue-create operation
Add a ynl netdev family operation called queue-create that creates a
new queue on a netdevice:
name: queue-create
attribute-set: queue
flags: [admin-perm]
do:
request:
attributes:
- ifindex
- type
- lease
reply: &queue-create-op
attributes:
- id
This is a generic operation such that it can be extended for various
use cases in future. Right now it is mandatory to specify ifindex,
the queue type which is enforced to rx and a lease. The newly created
queue id is returned to the caller.
A queue from a virtual device can have a lease which refers to another
queue from a physical device. This is useful for memory providers
and AF_XDP operations which take an ifindex and queue id to allow
applications to bind against virtual devices in containers. The lease
couples both queues together and allows to proxy the operations from
a virtual device in a container to the physical device.
In future, the nested lease attribute can be lifted and made optional
for other use-cases such as dynamic queue creation for physical
netdevs. The lack of lease and the specification of the physical
device as an ifindex will imply that we need a real queue to be
allocated. Similarly, the queue type enforcement to rx can then be
lifted as well to support tx.
An early implementation had only driver-specific integration [0], but
in order for other virtual devices to reuse, it makes sense to have
this as a generic API in core net.
For leasing queues, the virtual netdev must have real_num_rx_queues
less than num_rx_queues at the time of calling queue-create. The
queue-type must be rx as only rx queues are supported for leasing
for now. We also enforce that the queue-create ifindex must point
to a virtual device, and that the nested lease attribute's ifindex
must point to a physical device. The nested lease attribute set
contains a netns-id attribute which is optional and can specify a
netns-id relative to the caller's netns. It requires cap_net_admin
and if the netns-id attribute is not specified, the lease ifindex
will be retrieved from the current netns. Also, it is modeled as
an s32 type similarly as done elsewhere in the stack.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Co-developed-by: David Wei <dw@davidwei.uk>
Signed-off-by: David Wei <dw@davidwei.uk>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://bpfconf.ebpf.io/bpfconf2025/bpfconf2025_material/lsfmmbpf_2025_netkit_borkmann.pdf [0]
Link: https://patch.msgid.link/20260402231031.447597-2-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Thomas Weißschuh
|
b070dc3629 |
selftests/nolibc: use gcc 15
Newer compilers tend to detect more problematic code. Update the testsuite to use gcc 15.2.0 by default. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://patch.msgid.link/20260408-nolibc-gcc-15-v1-3-330d0c40f894@weissschuh.net |
||
|
Thomas Weißschuh
|
3495279d05 |
tools/nolibc: support UBSAN on gcc
The UBSAN implementation in gcc requires a slightly different function attribute to skip instrumentation. Extend __nolibc_no_sanitize_undefined to also handle gcc. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://patch.msgid.link/20260408-nolibc-gcc-15-v1-2-330d0c40f894@weissschuh.net |
||
|
Thomas Weißschuh
|
08ab958072 |
tools/nolibc: create __nolibc_no_sanitize_ubsan
The logic to disable UBSAN will become a bit more complicated. Move it out into compiler.h, so crt.h stays readable. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://patch.msgid.link/20260408-nolibc-gcc-15-v1-1-330d0c40f894@weissschuh.net |
||
|
Jakub Kicinski
|
b6e39e4846 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.0-rc8). Conflicts: net/ipv6/seg6_iptunnel.c |
||
|
Daniel Borkmann
|
8697bdd67b |
selftests/bpf: Add test for stale pkt range after scalar arithmetic
Extend the verifier_direct_packet_access BPF selftests to exercise the verifier code paths which ensure that the pkt range is cleared after add/sub alu with a known scalar. The tests reject the invalid access. # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_direct [...] #592/35 verifier_direct_packet_access/direct packet access: pkt_range cleared after sub with known scalar:OK #592/36 verifier_direct_packet_access/direct packet access: pkt_range cleared after add with known scalar:OK #592/37 verifier_direct_packet_access/direct packet access: test3:OK #592/38 verifier_direct_packet_access/direct packet access: test3 @unpriv:OK #592/39 verifier_direct_packet_access/direct packet access: test34 (non-linear, cgroup_skb/ingress, too short eth):OK #592/40 verifier_direct_packet_access/direct packet access: test35 (non-linear, cgroup_skb/ingress, too short 1):OK #592/41 verifier_direct_packet_access/direct packet access: test36 (non-linear, cgroup_skb/ingress, long enough):OK #592 verifier_direct_packet_access:OK [...] Summary: 2/47 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20260409155016.536608-2-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
a55f7f5f29 |
Including fixes from netfilter, IPsec and wireless. This is again
considerably bigger than the old average. No known outstanding
regressions.
Current release - regressions:
- net: increase IP_TUNNEL_RECURSION_LIMIT to 5
- eth: ice: fix PTP timestamping broken by SyncE code on E825C
Current release - new code bugs:
- eth: stmmac: dwmac-motorcomm: fix eFUSE MAC address read failure
Previous releases - regressions:
- core: fix cross-cache free of KFENCE-allocated skb head
- sched: act_csum: validate nested VLAN headers
- rxrpc: fix call removal to use RCU safe deletion
- xfrm:
- wait for RCU readers during policy netns exit
- fix refcount leak in xfrm_migrate_policy_find
- wifi: rt2x00usb: fix devres lifetime
- mptcp: fix slab-use-after-free in __inet_lookup_established
- ipvs: fix NULL deref in ip_vs_add_service error path
- eth: airoha: fix memory leak in airoha_qdma_rx_process()
- eth: lan966x: fix use-after-free and leak in lan966x_fdma_reload()
Previous releases - always broken:
- ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()
- ipv4: nexthop: avoid duplicate NHA_HW_STATS_ENABLE on nexthop group dump
- bridge: guard local VLAN-0 FDB helpers against NULL vlan group
- xsk: tailroom reservation and MTU validation
- rxrpc:
- fix to request an ack if window is limited
- fix RESPONSE authenticator parser OOB read
- netfilter: nft_ct: fix use-after-free in timeout object destroy
- batman-adv: hold claim backbone gateways by reference
- eth: stmmac: fix PTP ref clock for Tegra234
- eth: idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling
- eth: ipa: fix GENERIC_CMD register field masks for IPA v5.0+
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter, IPsec and wireless. This is again
considerably bigger than the old average. No known outstanding
regressions.
Current release - regressions:
- net: increase IP_TUNNEL_RECURSION_LIMIT to 5
- eth: ice: fix PTP timestamping broken by SyncE code on E825C
Current release - new code bugs:
- eth: stmmac: dwmac-motorcomm: fix eFUSE MAC address read failure
Previous releases - regressions:
- core: fix cross-cache free of KFENCE-allocated skb head
- sched: act_csum: validate nested VLAN headers
- rxrpc: fix call removal to use RCU safe deletion
- xfrm:
- wait for RCU readers during policy netns exit
- fix refcount leak in xfrm_migrate_policy_find
- wifi: rt2x00usb: fix devres lifetime
- mptcp: fix slab-use-after-free in __inet_lookup_established
- ipvs: fix NULL deref in ip_vs_add_service error path
- eth:
- airoha: fix memory leak in airoha_qdma_rx_process()
- lan966x: fix use-after-free and leak in lan966x_fdma_reload()
Previous releases - always broken:
- ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()
- ipv4: nexthop: avoid duplicate NHA_HW_STATS_ENABLE on nexthop group
dump
- bridge: guard local VLAN-0 FDB helpers against NULL vlan group
- xsk: tailroom reservation and MTU validation
- rxrpc:
- fix to request an ack if window is limited
- fix RESPONSE authenticator parser OOB read
- netfilter: nft_ct: fix use-after-free in timeout object destroy
- batman-adv: hold claim backbone gateways by reference
- eth:
- stmmac: fix PTP ref clock for Tegra234
- idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling
- ipa: fix GENERIC_CMD register field masks for IPA v5.0+"
* tag 'net-7.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (104 commits)
net: lan966x: fix use-after-free and leak in lan966x_fdma_reload()
net: lan966x: fix page pool leak in error paths
net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()
nfc: pn533: allocate rx skb before consuming bytes
l2tp: Drop large packets with UDP encap
net: ipa: fix event ring index not programmed for IPA v5.0+
net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+
MAINTAINERS: Add Prashanth as additional maintainer for amd-xgbe driver
devlink: Fix incorrect skb socket family dumping
af_unix: read UNIX_DIAG_VFS data under unix_state_lock
Revert "mptcp: add needs_id for netlink appending addr"
mptcp: fix slab-use-after-free in __inet_lookup_established
net: txgbe: leave space for null terminators on property_entry
net: ioam6: fix OOB and missing lock
rxrpc: proc: size address buffers for %pISpc output
rxrpc: only handle RESPONSE during service challenge
rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()
rxrpc: Fix leak of rxgk context in rxgk_verify_response()
rxrpc: Fix integer overflow in rxgk_verify_response()
rxrpc: Fix missing error checks for rxkad encryption/decryption failure
...
|
||
|
Will Deacon
|
f8d5e7066d | Merge branches 'fixes', 'arm/smmu/updates', 'arm/smmu/bindings', 'riscv', 'intel/vt-d', 'amd/amd-vi' and 'core' into next | ||
|
Song Gao
|
e47b8e1db9 |
KVM: LoongArch: selftests: Add PMU overflow interrupt test
Extend the PMU test suite to cover overflow interrupts. The test enables the PMI (Performance Monitor Interrupt), sets counter 0 to one less than the overflow value, and verifies that an interrupt is raised when the counter overflows. A guest interrupt handler checks the interrupt cause and disables further PMU interrupts upon success. Signed-off-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Song Gao
|
11c8401927 |
KVM: LoongArch: selftests: Add basic PMU event counting test
Introduce a basic PMU test that verifies hardware event counting for four performance counters. The test enables the events for CPU cycles, instructions retired, branch instructions, and branch misses, runs a fixed number of loops, and checks that the counter values fall within expected ranges. It also validates that the host supports PMU and that the VM feature is enabled. Signed-off-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Song Gao
|
fa19ea9a7b |
KVM: LoongArch: selftests: Add cpucfg read/write helpers
Add helper macros and functions to read and write CPU configuration registers (cpucfg) from the guest and from the VMM. This interface is required in upcoming selftests for querying and setting CPU features, such as PMU capabilities. Signed-off-by: Song Gao <gaosong@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Takashi Iwai
|
3f44bccdd6 |
Merge branch 'for-linus' into for-next
Pull 7.0-devel branch for further development of HD-audio codec quirks. Signed-off-by: Takashi Iwai <tiwai@suse.de> |
||
|
Thomas Richter
|
4cf1f549bb |
perf test: Make perf trace BTF general tests exclusive
Running both tests cases 126 128 together causes the first test case 126 to fail: # for i in $(seq 3); do ./perf test 'perf trace BTF general tests' \ 'perf trace record and replay'; done 126: perf trace BTF general tests : FAILED! 128: perf trace record and replay : Ok 126: perf trace BTF general tests : FAILED! 128: perf trace record and replay : Ok 126: perf trace BTF general tests : FAILED! 128: perf trace record and replay : Ok # Test case 126 fails because test case 128 runs concurrently as can be observed using a ps -ef | grep perf output list on a different window. Both do a perf trace command concurrently. Make test case 'perf trace BTF general tests' exclusive. Output after: # for i in $(seq 3); do ./perf test 'perf trace BTF general tests' \ 'perf trace record and replay'; done 127: perf trace BTF general tests : Ok 155: perf trace record and replay : Ok 127: perf trace BTF general tests : Ok 155: perf trace record and replay : Ok 127: perf trace BTF general tests : Ok 155: perf trace record and replay : Ok # Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Howard Chu <howardchu95@gmail.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Or Har-Toov
|
2a8e912352 |
selftest: netdevsim: Add resource dump and scope filter test
Add resource_dump_test() which verifies dumping resources for all devices and ports, and tests that scope=dev returns only device-level resources and scope=port returns only port resources. Skip if userspace does not support the scope parameter. Signed-off-by: Or Har-Toov <ohartoov@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260407194107.148063-12-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Or Har-Toov
|
3961353771 |
selftest: netdevsim: Add devlink port resource doit test
Tests that querying a specific port handle returns the expected resource name and size. Signed-off-by: Or Har-Toov <ohartoov@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260407194107.148063-9-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Leon Hwang
|
5ae4ba98d7 |
selftests/drivers/net: Add an xdp test to xdp.py
In "bpf: Disallow freplace on XDP with mismatched xdp_has_frags values" [1], this XDP test is suggested to add to xdp.py. 1. Verify the failure of updating frag-capable prog with non-frag-capable prog, when the frag-capable prog attaches to mtu=9k driver. The test has been verified against Mellanox CX6 and Intel 82599ES NICs. With dropping other tests, here is the test log. # ethtool -i eth0 driver: mlx5_core version: 6.19.0-061900-generic # NETIF=eth0 python3 xdp.py TAP version 13 1..1 ok 1 xdp.test_xdp_native_update_mb_to_sb # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 # ethtool -i eth0 driver: ixgbe version: 6.19.0-061900-generic # NETIF=eth0 python3 xdp.py TAP version 13 1..1 # CMD: ip link set dev eth0 xdpdrv obj /path/to/tools/testing/selftests/net/lib/xdp_dummy.bpf.o sec xdp.frags # EXIT: 2 # STDERR: RTNETLINK answers: Invalid argument ok 1 xdp.test_xdp_native_update_mb_to_sb # SKIP device does not support multi-buffer XDP # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:1 error:0 Signed-off-by: Leon Hwang <leon.huangfu@shopee.com> Link: https://patch.msgid.link/20260406072655.368173-1-leon.huangfu@shopee.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Ioana Ciornei
|
fff75dba79 |
selftests: forwarding: lib: rewrite processing of command line arguments
The piece of code which processes the command line arguments and populates NETIFS based on them is really unobvious. Rewrite it so that the intention is clear and the code is easy to follow. Suggested-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20260407102058.867279-1-ioana.ciornei@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Ian Rogers
|
80b549be27 |
perf data: Clean up use_stdio and structures
use_stdio was associated with struct perf_data and not perf_data_file meaning there was implicit use of fd rather than fptr that may not be safe. For example, in perf_data_file__write. Reorganize perf_data_file to better abstract use_stdio, add kernel-doc and more consistently use perf_data__ accessors so that use_stdio is better respected. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
19a9ed115f |
perf tools: Replace basename() calls with perf_basename()
As noticed in a sashiko review for a patch adding a missing libgen.h in a file using basename(): https://sashiko.dev/#/patchset/20260402001740.2220481-1-acme%40kernel.org So avoid these subtleties and instead reuse the gnu_basename() function we had in srcline.c, renaming it to perf_basename() and replace basename() calls with it, simplifying several cases by removing now needless strdups. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
fbfb858552 |
perf tools: Use calloc() where applicable
Instead of using zalloc(nr_entries * sizeof_entry) that is what calloc() does. In some places where linux/zalloc.h isn't needed, remove it, add when needed and was getting it indirectly. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
7507abd16a |
perf header: Do validation of perf.data HEADER_CPU_DOMAIN_INFO
As suggested in an unrelated sashiko review: https://sashiko.dev/#/patchset/20260407195145.2372104-1-acme%40kernel.org " Could a malformed perf.data file provide out-of-bounds values for cpu and domain? These variables are read directly from the file and used as indices for cd_map and cd_map[cpu]->domains without any validation against env->nr_cpus_avail or max_sched_domains. Similar to the issue above, this is an existing lack of validation that becomes apparent when looking at the allocation boundaries. " Validate it. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
fc32ae6df8 |
perf header: Use a max number of command line args
Sashiko suggests we use some reasonable max number of args to avoid overflows when reading perf.data files, do it. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
c89f35def8 |
perf bench: Constify tables
Those tables and variables don't change, better capture this by explicitely using 'const'. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Ian Rogers
|
046fd8206d |
perf tools: Make more global variables static
`make check` will run sparse on the perf code base. A frequent warning is "warning: symbol '...' was not declared. Should it be static?" Go through and make global definitions without declarations static. In some cases it is deliberate due to dlsym accessing the symbol, this change doesn't clean up the missing declarations for perf test suites. Sometimes things can opportunistically be made const. Making somethings static exposed unused functions warnings, so restructuring of ifdefs was necessary for that. These changes reduce the size of the perf binary by 568 bytes. Committer notes: Refreshed the patch, the original one fell thru the cracks, updated the size reduction. Remove the trace-event-scripting.c changes, break the build, noticed with container builds and with sashiko: https://sashiko.dev/#/patchset/20260401215306.2152898-1-acme%40kernel.org Also make two variables static to address another sashiko review comment: https://sashiko.dev/#/patchset/20260402001740.2220481-1-acme%40kernel.org Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Ankur Arora <ankur.a.arora@oracle.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Guo Ren <guoren@kernel.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yujie Liu <yujie.liu@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
e5cce1b9c8 |
perf util: Kill die() prototype, dead for a long time
In |
||
|
Arnaldo Carvalho de Melo
|
d3e01be6da |
perf symbols: Make variable receiving result strrchr() const
Fixing:
util/symbol.c: In function ‘symbol__config_symfs’:
util/symbol.c:2499:20: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
2499 | layout_str = strrchr(dir, ',');
|
With recent gcc/glibc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
|
||
|
Jakub Kicinski
|
ea0f90d1ed |
ipsec-next-2026-04-08
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEH7ZpcWbFyOOp6OJbrB3Eaf9PW7cFAmnWIe8ACgkQrB3Eaf9P W7dDqRAAho59mSQlQAaoj6lkPlBCR8/TZrEHWXeTZvWzzyILiE8GJGdkMoUOk47S QR2YJ7xTg/eAALJFFPCKj82k5GOt2CjOo30BS901zdBhSZbN/H+tW57QfYRegR3o BFZ0eBCDc5FHQYRl8QbCi2XtF4Sqr8erLIvNwfaOiuoPCZmoehD2kyMpPhb/w9qQ DD0OsYWjZuhBP+MwHGCsmtMBoesVKI/86HV0LpeyH7uU+928Tf+TcACJzkLMrUcE AwrvTL3Mvp2ljsm9mw6mElyiAqemQHM87yg8BrR7NoXlahAEOJx8UWchKpAgGXv5 bO8ng0Y8lNcuG+tN7rVk4/KeyjGNSW6ubRKfZbast6aoj5LfUhOIxxMTyYOEU5rH wKbIX00ilONs8S+kK/S4D0/1EdszOB/WVUTN5yEH1+FxkpvMGs3LUfhEjzfk9Lnz sT1ZF65YNwR0qa1SaIU4kYM543mlr/CrFgoPx5VOu0+jG+xCVWiC8fy+/SD688ht VTQGf8Y6gGX0yRMYJeauHHCBeMwbF7WEu7MYSi+4+7uUCYexh700QpOjaYLrTpgS NLpT9JPvuyWQ389DjJ+h5cpTqIsLrNs6+SXo+mZ6nkubGe+HRKZnLFwXj+41p3hE tUv+EcZTKDa+YVGymVcjORC5JjqvJXXklqQFeROuoamdJF0M96c= =0E3L -----END PGP SIGNATURE----- Merge tag 'ipsec-next-2026-04-08' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2026-04-08 1) Update outdated comment in xfrm_dst_check(). From kexinsun. 2) Drop support for HMAC-RIPEMD-160 from IPsec. From Eric Biggers. * tag 'ipsec-next-2026-04-08' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: xfrm: Drop support for HMAC-RIPEMD-160 xfrm: update outdated comment ==================== Link: https://patch.msgid.link/20260408094258.148555-1-steffen.klassert@secunet.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Daniel Borkmann
|
e0fcb42bc6 |
selftests/bpf: Add tests for ld_{abs,ind} failure path in subprogs
Extend the verifier_ld_ind BPF selftests with subprogs containing
ld_{abs,ind} and craft the test in a way where the invalid register
read is rejected in the fixed case. Also add a success case each,
and add additional coverage related to the BTF return type enforcement.
# LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_ld_ind
[...]
#611/1 verifier_ld_ind/ld_ind: check calling conv, r1:OK
#611/2 verifier_ld_ind/ld_ind: check calling conv, r1 @unpriv:OK
#611/3 verifier_ld_ind/ld_ind: check calling conv, r2:OK
#611/4 verifier_ld_ind/ld_ind: check calling conv, r2 @unpriv:OK
#611/5 verifier_ld_ind/ld_ind: check calling conv, r3:OK
#611/6 verifier_ld_ind/ld_ind: check calling conv, r3 @unpriv:OK
#611/7 verifier_ld_ind/ld_ind: check calling conv, r4:OK
#611/8 verifier_ld_ind/ld_ind: check calling conv, r4 @unpriv:OK
#611/9 verifier_ld_ind/ld_ind: check calling conv, r5:OK
#611/10 verifier_ld_ind/ld_ind: check calling conv, r5 @unpriv:OK
#611/11 verifier_ld_ind/ld_ind: check calling conv, r7:OK
#611/12 verifier_ld_ind/ld_ind: check calling conv, r7 @unpriv:OK
#611/13 verifier_ld_ind/ld_abs: subprog early exit on ld_abs failure:OK
#611/14 verifier_ld_ind/ld_ind: subprog early exit on ld_ind failure:OK
#611/15 verifier_ld_ind/ld_abs: subprog with both paths safe:OK
#611/16 verifier_ld_ind/ld_ind: subprog with both paths safe:OK
#611/17 verifier_ld_ind/ld_abs: reject void return subprog:OK
#611/18 verifier_ld_ind/ld_ind: reject void return subprog:OK
#611 verifier_ld_ind:OK
Summary: 1/18 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20260408191242.526279-4-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
||
|
Cheng-Yang Chou
|
ff1befcb16 |
selftests/sched_ext: Improve runner error reporting for invalid arguments
Report an error for './runner foo' (positional arg instead of -t) and for './runner -t foo' when the filter matches no tests. Previously both cases produced no error output. Pre-scan the test list before the main loop so the error is reported immediately, avoiding spurious SKIP output from '-s' when no tests match. Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
||
|
Varun R Mallya
|
c7cab53f9d |
selftests/bpf: Add test to ensure kprobe_multi is not sleepable
Add a selftest to ensure that kprobe_multi programs cannot be attached using the BPF_F_SLEEPABLE flag. This test succeeds when the kernel rejects attachment of kprobe_multi when the BPF_F_SLEEPABLE flag is set. Suggested-by: Leon Hwang <leon.hwang@linux.dev> Signed-off-by: Varun R Mallya <varunrmallya@gmail.com> Link: https://lore.kernel.org/r/20260408190137.101418-3-varunrmallya@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Christian Bruel
|
1d3225cb5d |
selftests: pci_endpoint: Skip BAR subrange test on -ENOSPC
In pci-epf-test.c, set the STATUS_NO_RESOURCE status bit if pci_epc_set_bar() returns -ENOSPC. This status bit is used to indicate that there are not enough inbound window resources to allocate the subrange. In pci_endpoint_test.c, return -ENOSPC instead of -EIO when STATUS_NO_RESOURCE is set. In pci_endpoint_test.c, skip the BAR subrange test if -ENOSPC, i.e., there are not enough inbound window resources to run the test. Signed-off-by: Christian Bruel <christian.bruel@foss.st.com> [mani: commit log] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> [bhelgaas: squash related commits] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Niklas Cassel <cassel@kernel.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Koichiro Den <den@valinux.co.jp> Link: https://patch.msgid.link/20260407-skip-bar_subrange-tests-if-enospc-v4-1-6f2e65f2298c@foss.st.com Link: https://patch.msgid.link/20260407-skip-bar_subrange-tests-if-enospc-v4-2-6f2e65f2298c@foss.st.com Link: https://patch.msgid.link/20260407-skip-bar_subrange-tests-if-enospc-v4-3-6f2e65f2298c@foss.st.com |
||
|
Ian Rogers
|
f552b132e4 |
perf maps: Fix copy_from that can break sorted by name order
When an parent is copied into a child the name array is populated in
address not name order. Make sure the name array isn't flagged as sorted.
Fixes:
|
||
|
Ian Rogers
|
c4f3ff3289 |
perf maps: Fix fixup_overlap_and_insert that can break sorted by name order
When an entry in the address array is replaced, the corresponding name
entry is replaced. The entries names may sort differently and so it is
important that the sorted by name property be cleared on the maps.
Fixes:
|
||
|
Ian Rogers
|
b01741b285 |
perf maps: Move getting debug_file to verbose path
Getting debug_file can trigger warnings if not set. Avoid getting these warnings by pushing the use under the controlling if. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Thomas Richter
|
83674a7829 |
perf addr2line: Remove global variable addr2line_timeout_ms
Remove global variable addr2line_timeout_ms and add it as a member to symbol_conf structure. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> [namhyung: move the initialization to util/symbol.c] Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Thomas Richter
|
59f6de4e8f |
perf config: Make symbol_conf::addr2line_disable_warn configurable
Make symbol_conf::addr2line_disable_warn configurable by reading the perfconfig file. Use section core and addr2line-disable-warn = value. Update documentation. Example: # perf config -l core.addr2line-timeout=5000 core.addr2line-disable-warn=1 # Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Suggested-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Thomas Richter
|
bb7aeeaa21 |
perf config: Rename symbol_conf::disable_add2line_warn
Rename member symbol_conf::disable_add2line_warn to symbol_conf::addr2line_disable_warn to make it consistent with other addr2line_xxx constants. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
|
Fernando Fernandez Mancera
|
dde1a6084c |
selftests: nft_queue.sh: add a parallel stress test
Introduce a new stress test to check for race conditions in the nfnetlink_queue subsystem, where an entry is freed while another CPU is concurrently walking the global rhashtable. To trigger this, `nf_queue.c` is extended with two new flags: * -O (out-of-order): Buffers packet IDs and flushes them in reverse. * -b (bogus verdicts): Floods the kernel with non-existent packet IDs. The bogus verdict loop forces the kernel's lookup function to perform full rhashtable bucket traversals (-ENOENT). Combined with reverse-order flushing and heavy parallel UDP/ping flooding across 8 queues, this puts the nfnetlink_queue code under pressure. Joint work with Florian Westphal. Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de> Signed-off-by: Florian Westphal <fw@strlen.de> |
||
|
Marc Zyngier
|
94b4ae79eb |
Merge branch kvm-arm64/misc-7.1 into kvmarm-master/next
* kvm-arm64/misc-7.1: KVM: arm64: selftests: Avoid testing the IMPDEF behavior KVM: arm64: Destroy stage-2 page-table in kvm_arch_destroy_vm() KVM: arm64: Don't leave mmu->pgt dangling on kvm_init_stage2_mmu() error KVM: arm64: Prevent the host from using an smc with imm16 != 0 Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
d77f4792db |
Merge branch kvm-arm64/vgic-fixes-7.1 into kvmarm-master/next
* kvm-arm64/vgic-fixes-7.1: : . : FIrst pass at fixing a number of vgic-v5 bugs that were found : after the merge of the initial series. : . KVM: arm64: Advertise ID_AA64PFR2_EL1.GCIE KVM: arm64: vgic-v5: Fold PPI state for all exposed PPIs KVM: arm64: set_id_regs: Allow GICv3 support to be set at runtime KVM: arm64: Don't advertises GICv3 in ID_PFR1_EL1 if AArch32 isn't supported KVM: arm64: Correctly plumb ID_AA64PFR2_EL1 into pkvm idreg handling KVM: arm64: Move GICv5 timer PPI validation into timer_irqs_are_valid() KVM: arm64: Remove evaluation of timer state in kvm_cpu_has_pending_timer() KVM: arm64: Kill arch_timer_context::direct field KVM: arm64: vgic-v5: Correctly set dist->ready once initialised KVM: arm64: vgic-v5: Make the effective priority mask a strict limit KVM: arm64: vgic-v5: Cast vgic_apr to u32 to avoid undefined behaviours KVM: arm64: vgic-v5: Transfer edge pending state to ICH_PPI_PENDRx_EL2 KVM: arm64: vgic-v5: Hold config_lock while finalizing GICv5 PPIs KVM: arm64: Account for RESx bits in __compute_fgt() KVM: arm64: Fix writeable mask for ID_AA64PFR2_EL1 arm64: Fix field references for ICH_PPI_DVIR[01]_EL2 KVM: arm64: Don't skip per-vcpu NV initialisation KVM: arm64: vgic: Don't reset cpuif/redist addresses at finalize time Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Marc Zyngier
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f8078d51ee |
Merge branch kvm-arm64/vgic-v5-ppi into kvmarm-master/next
* kvm-arm64/vgic-v5-ppi: (40 commits) : . : Add initial GICv5 support for KVM guests, only adding PPI support : for the time being. Patches courtesy of Sascha Bischoff. : : From the cover letter: : : "This is v7 of the patch series to add the virtual GICv5 [1] device : (vgic_v5). Only PPIs are supported by this initial series, and the : vgic_v5 implementation is restricted to the CPU interface, : only. Further patch series are to follow in due course, and will add : support for SPIs, LPIs, the GICv5 IRS, and the GICv5 ITS." : . KVM: arm64: selftests: Add no-vgic-v5 selftest KVM: arm64: selftests: Introduce a minimal GICv5 PPI selftest KVM: arm64: gic-v5: Communicate userspace-driveable PPIs via a UAPI Documentation: KVM: Introduce documentation for VGICv5 KVM: arm64: gic-v5: Probe for GICv5 device KVM: arm64: gic-v5: Set ICH_VCTLR_EL2.En on boot KVM: arm64: gic-v5: Introduce kvm_arm_vgic_v5_ops and register them KVM: arm64: gic-v5: Hide FEAT_GCIE from NV GICv5 guests KVM: arm64: gic: Hide GICv5 for protected guests KVM: arm64: gic-v5: Mandate architected PPI for PMU emulation on GICv5 KVM: arm64: gic-v5: Enlighten arch timer for GICv5 irqchip/gic-v5: Introduce minimal irq_set_type() for PPIs KVM: arm64: gic-v5: Initialise ID and priority bits when resetting vcpu KVM: arm64: gic-v5: Create and initialise vgic_v5 KVM: arm64: gic-v5: Support GICv5 interrupts with KVM_IRQ_LINE KVM: arm64: gic-v5: Implement direct injection of PPIs KVM: arm64: Introduce set_direct_injection irq_op KVM: arm64: gic-v5: Trap and mask guest ICC_PPI_ENABLERx_EL1 writes KVM: arm64: gic-v5: Check for pending PPIs KVM: arm64: gic-v5: Clear TWI if single task running ... Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Marc Zyngier
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2de32a25a3 |
Merge branch kvm-arm64/hyp-tracing into kvmarm-master/next
* kvm-arm64/hyp-tracing: (40 commits) : . : EL2 tracing support, adding both 'remote' ring-buffer : infrastructure and the tracing itself, courtesy of : Vincent Donnefort. From the cover letter: : : "The growing set of features supported by the hypervisor in protected : mode necessitates debugging and profiling tools. Tracefs is the : ideal candidate for this task: : : * It is simple to use and to script. : : * It is supported by various tools, from the trace-cmd CLI to the : Android web-based perfetto. : : * The ring-buffer, where are stored trace events consists of linked : pages, making it an ideal structure for sharing between kernel and : hypervisor. : : This series first introduces a new generic way of creating remote events and : remote buffers. Then it adds support to the pKVM hypervisor." : . tracing: selftests: Extend hotplug testing for trace remotes tracing: Non-consuming read for trace remotes with an offline CPU tracing: Adjust cmd_check_undefined to show unexpected undefined symbols tracing: Restore accidentally removed SPDX tag KVM: arm64: avoid unused-variable warning tracing: Generate undef symbols allowlist for simple_ring_buffer KVM: arm64: tracing: add ftrace dependency tracing: add more symbols to whitelist tracing: Update undefined symbols allow list for simple_ring_buffer KVM: arm64: Fix out-of-tree build for nVHE/pKVM tracing tracing: selftests: Add hypervisor trace remote tests KVM: arm64: Add selftest event support to nVHE/pKVM hyp KVM: arm64: Add hyp_enter/hyp_exit events to nVHE/pKVM hyp KVM: arm64: Add event support to the nVHE/pKVM hyp and trace remote KVM: arm64: Add trace reset to the nVHE/pKVM hyp KVM: arm64: Sync boot clock with the nVHE/pKVM hyp KVM: arm64: Add trace remote for the nVHE/pKVM hyp KVM: arm64: Add tracing capability for the nVHE/pKVM hyp KVM: arm64: Support unaligned fixmap in the pKVM hyp KVM: arm64: Initialise hyp_nr_cpus for nVHE hyp ... Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Andrea Mayer
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32dfd742f0 |
selftests: seg6: add test for dst_cache isolation in seg6 lwtunnel
Add a selftest that verifies the dst_cache in seg6 lwtunnel is not
shared between the input (forwarding) and output (locally generated)
paths.
The test creates three namespaces (ns_src, ns_router, ns_dst)
connected in a line. An SRv6 encap route on ns_router encapsulates
traffic destined to cafe::1 with SID fc00::100. The SID is
reachable only for forwarded traffic (from ns_src) via an ip rule
matching the ingress interface (iif veth-r0 lookup 100), and
blackholed in the main table.
The test verifies that:
1. A packet generated locally on ns_router does not reach
ns_dst with an empty cache, since the SID is blackholed;
2. A forwarded packet from ns_src populates the input cache
from table 100 and reaches ns_dst;
3. A packet generated locally on ns_router still does not
reach ns_dst after the input cache is populated,
confirming the output path does not reuse the input
cache entry.
Both the forwarded and local packets are pinned to the same CPU
with taskset, since dst_cache is per-cpu.
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Justin Iurman <justin.iurman@gmail.com>
Link: https://patch.msgid.link/20260404004405.4057-3-andrea.mayer@uniroma2.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Daniel Golle
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efaa71faf2 |
selftests: net: bridge_vlan_mcast: wait for h1 before querier check
The querier-interval test adds h1 (currently a slave of the VRF created
by simple_if_init) to a temporary bridge br1 acting as an outside IGMP
querier. The kernel VRF driver (drivers/net/vrf.c) calls cycle_netdev()
on every slave add and remove, toggling the interface admin-down then up.
Phylink takes the PHY down during the admin-down half of that cycle.
Since h1 and swp1 are cable-connected, swp1 also loses its link may need
several seconds to re-negotiate.
Use setup_wait_dev $h1 0 which waits for h1 to return to UP state, so the
test can rely on the link being back up at this point.
Fixes:
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Jakub Kicinski
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e65d8b6f30 |
selftests: drv-net: adjust to socat changes
socat v1.8.1.0 now defaults to shut-null, it sends an extra 0-length UDP packet when sender disconnects. This breaks our tests which expect the exact packet sequence. Add shut-none which was the old default where necessary. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Joe Damato <joe@dama.to> Reviewed-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20260404230103.2719103-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Amery Hung
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4cfb09a383 |
selftests/bpf: Test overwriting referenced dynptr
Test overwriting referenced dynptr and clones to make sure it is only allow when there is at least one other dynptr with the same ref_obj_id. Also make sure slice is still invalidated after the dynptr's stack slot is destroyed. Signed-off-by: Amery Hung <ameryhung@gmail.com> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20260406150548.1354271-3-ameryhung@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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cac16ce1e3 |
selftests/bpf: Add tests for stale delta leaking through id reassignment
Extend the verifier_linked_scalars BPF selftest with a stale delta test such that the div-by-zero path is rejected in the fixed case. # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_linked_scalars [...] ./test_progs -t verifier_linked_scalars #612/1 verifier_linked_scalars/scalars: find linked scalars:OK #612/2 verifier_linked_scalars/sync_linked_regs_preserves_id:OK #612/3 verifier_linked_scalars/scalars_neg:OK #612/4 verifier_linked_scalars/scalars_neg_sub:OK #612/5 verifier_linked_scalars/scalars_neg_alu32_add:OK #612/6 verifier_linked_scalars/scalars_neg_alu32_sub:OK #612/7 verifier_linked_scalars/scalars_pos:OK #612/8 verifier_linked_scalars/scalars_sub_neg_imm:OK #612/9 verifier_linked_scalars/scalars_double_add:OK #612/10 verifier_linked_scalars/scalars_sync_delta_overflow:OK #612/11 verifier_linked_scalars/scalars_sync_delta_overflow_large_range:OK #612/12 verifier_linked_scalars/scalars_alu32_big_offset:OK #612/13 verifier_linked_scalars/scalars_alu32_basic:OK #612/14 verifier_linked_scalars/scalars_alu32_wrap:OK #612/15 verifier_linked_scalars/scalars_alu32_zext_linked_reg:OK #612/16 verifier_linked_scalars/scalars_alu32_alu64_cross_type:OK #612/17 verifier_linked_scalars/scalars_alu32_alu64_regsafe_pruning:OK #612/18 verifier_linked_scalars/alu32_negative_offset:OK #612/19 verifier_linked_scalars/spurious_precision_marks:OK #612/20 verifier_linked_scalars/scalars_self_add_clears_id:OK #612/21 verifier_linked_scalars/scalars_self_add_alu32_clears_id:OK #612/22 verifier_linked_scalars/scalars_stale_delta_from_cleared_id:OK #612/23 verifier_linked_scalars/scalars_stale_delta_from_cleared_id_alu32:OK #612 verifier_linked_scalars:OK Summary: 1/23 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20260407192421.508817-4-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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ed2eecdc0c |
selftests/bpf: Add tests for delta tracking when src_reg == dst_reg
Extend the verifier_linked_scalars BPF selftest with a rX += rX test such that the div-by-zero path is rejected in the fixed case. # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_linked_scalars [...] ./test_progs -t verifier_linked_scalars #612/1 verifier_linked_scalars/scalars: find linked scalars:OK #612/2 verifier_linked_scalars/sync_linked_regs_preserves_id:OK #612/3 verifier_linked_scalars/scalars_neg:OK #612/4 verifier_linked_scalars/scalars_neg_sub:OK #612/5 verifier_linked_scalars/scalars_neg_alu32_add:OK #612/6 verifier_linked_scalars/scalars_neg_alu32_sub:OK #612/7 verifier_linked_scalars/scalars_pos:OK #612/8 verifier_linked_scalars/scalars_sub_neg_imm:OK #612/9 verifier_linked_scalars/scalars_double_add:OK #612/10 verifier_linked_scalars/scalars_sync_delta_overflow:OK #612/11 verifier_linked_scalars/scalars_sync_delta_overflow_large_range:OK #612/12 verifier_linked_scalars/scalars_alu32_big_offset:OK #612/13 verifier_linked_scalars/scalars_alu32_basic:OK #612/14 verifier_linked_scalars/scalars_alu32_wrap:OK #612/15 verifier_linked_scalars/scalars_alu32_zext_linked_reg:OK #612/16 verifier_linked_scalars/scalars_alu32_alu64_cross_type:OK #612/17 verifier_linked_scalars/scalars_alu32_alu64_regsafe_pruning:OK #612/18 verifier_linked_scalars/alu32_negative_offset:OK #612/19 verifier_linked_scalars/spurious_precision_marks:OK #612/20 verifier_linked_scalars/scalars_self_add_clears_id:OK #612/21 verifier_linked_scalars/scalars_self_add_alu32_clears_id:OK #612 verifier_linked_scalars:OK Summary: 1/21 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20260407192421.508817-3-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Andrey Grodzovsky
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cea4323f1c |
selftests/bpf: Add tests for kprobe attachment with duplicate symbols
bpf_fentry_shadow_test exists in both vmlinux (net/bpf/test_run.c) and
bpf_testmod (bpf_testmod.c), creating a duplicate symbol condition when
bpf_testmod is loaded. Add subtests that verify kprobe behavior with
this duplicate symbol:
In attach_probe:
- dup-sym-{default,legacy,perf,link}: unqualified attach succeeds
across all four modes, preferring vmlinux over module shadow.
- MOD:SYM qualification attaches to the module version.
In kprobe_multi_test:
- dup_sym: kprobe_multi attach with kprobe and kretprobe succeeds.
bpf_fentry_shadow_test is not invoked via test_run, so tests verify
attach and detach succeed without triggering the probe.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com>
Link: https://lore.kernel.org/r/20260407203912.1787502-3-andrey.grodzovsky@crowdstrike.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Qi Tang
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a4985a1755 |
selftests/bpf: add test for nullable PTR_TO_BUF access
Add iter_buf_null_fail with two tests and a test runner:
- iter_buf_null_deref: verifier must reject direct dereference of
ctx->key (PTR_TO_BUF | PTR_MAYBE_NULL) without a null check
- iter_buf_null_check_ok: verifier must accept dereference after
an explicit null check
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Reviewed-by: Amery Hung <ameryhung@gmail.com>
Signed-off-by: Qi Tang <tpluszz77@gmail.com>
Link: https://lore.kernel.org/r/20260407145421.4315-1-tpluszz77@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Kumar Kartikeya Dwivedi
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a8aa306741 |
selftests/bpf: Allow prog name matching for tests with __description
For tests that carry a __description tag, allow matching on both the description string and program name for convenience. Before this commit, the description string must be spelt out to filter the tests. Suggested-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20260407145606.3991770-1-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Günther Noack
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dc75f89046
|
selftests/landlock: Simplify ruleset creation and enforcement in fs_test
* Add enforce_fs() for defining and enforcing a ruleset in one step * In some places, dropped "ASSERT_LE(0, fd)" checks after create_ruleset() call -- create_ruleset() already checks that. * In some places, rename "file_fd" to "fd" if it is not needed to disambiguate any more. Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260327164838.38231-12-gnoack3000@gmail.com [mic: Tweak subjet] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Günther Noack
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f433fd3fa2
|
selftests/landlock: Check that coredump sockets stay unrestricted
Even when a process is restricted with the new LANDLOCK_ACCESS_FS_RESOLVE_UNIX right, the kernel can continue writing its coredump to the configured coredump socket. In the test, we create a local server and rewire the system to write coredumps into it. We then create a child process within a Landlock domain where LANDLOCK_ACCESS_FS_RESOLVE_UNIX is restricted and make the process crash. The test uses SO_PEERCRED to check that the connecting client process is the expected one. Includes a fix by Mickaël Salaün for setting the EUID to 0 (see [1]). Link[1]: https://lore.kernel.org/all/20260218.ohth8theu8Yi@digikod.net/ Suggested-by: Mickaël Salaün <mic@digikod.net> Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260327164838.38231-11-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Günther Noack
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0f42f5be0b
|
selftests/landlock: Audit test for LANDLOCK_ACCESS_FS_RESOLVE_UNIX
Add an audit test to check that Landlock denials from LANDLOCK_ACCESS_FS_RESOLVE_UNIX result in audit logs in the expected format. (There is one audit test for each filesystem access right, so we should add one for LANDLOCK_ACCESS_FS_RESOLVE_UNIX as well.) Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260327164838.38231-10-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Günther Noack
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9da41c65c9
|
selftests/landlock: Test LANDLOCK_ACCESS_FS_RESOLVE_UNIX
* Extract common helpers from an existing IOCTL test that
also uses pathname unix(7) sockets.
* These tests use the common scoped domains fixture which is also used
in other Landlock scoping tests and which was used in Tingmao Wang's
earlier patch set in [1].
These tests exercise the cross product of the following scenarios:
* Stream connect(), Datagram connect(), Datagram sendmsg() and
Seqpacket connect().
* Child-to-parent and parent-to-child communication
* The Landlock policy configuration as listed in the scoped_domains
fixture.
* In the default variant, Landlock domains are only placed where
prescribed in the fixture.
* In the "ALL_DOMAINS" variant, Landlock domains are also placed in
the places where the fixture says to omit them, but with a
LANDLOCK_RULE_PATH_BENEATH that allows connection.
Cc: Justin Suess <utilityemal77@gmail.com>
Cc: Tingmao Wang <m@maowtm.org>
Cc: Mickaël Salaün <mic@digikod.net>
Link[1]: https://lore.kernel.org/all/53b9883648225d5a08e82d2636ab0b4fda003bc9.1767115163.git.m@maowtm.org/
Signed-off-by: Günther Noack <gnoack3000@gmail.com>
Link: https://lore.kernel.org/r/20260327164838.38231-9-gnoack3000@gmail.com
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Günther Noack
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db8201a3fa
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selftests/landlock: Replace access_fs_16 with ACCESS_ALL in fs_test
The access_fs_16 variable was originally intended to stay frozen at 16 access rights so that audit tests would not need updating when new access rights are added. Now that we have 17 access rights, the name is confusing. Replace all uses of access_fs_16 with ACCESS_ALL and delete the variable. Suggested-by: Mickaël Salaün <mic@digikod.net> Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20260327164838.38231-8-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Günther Noack
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ae97330d1b
|
landlock: Control pathname UNIX domain socket resolution by path
* Add a new access right LANDLOCK_ACCESS_FS_RESOLVE_UNIX, which controls the lookup operations for named UNIX domain sockets. The resolution happens during connect() and sendmsg() (depending on socket type). * Change access_mask_t from u16 to u32 (see below) * Hook into the path lookup in unix_find_bsd() in af_unix.c, using a LSM hook. Make policy decisions based on the new access rights * Increment the Landlock ABI version. * Minor test adaptations to keep the tests working. * Document the design rationale for scoped access rights, and cross-reference it from the header documentation. With this access right, access is granted if either of the following conditions is met: * The target socket's filesystem path was allow-listed using a LANDLOCK_RULE_PATH_BENEATH rule, *or*: * The target socket was created in the same Landlock domain in which LANDLOCK_ACCESS_FS_RESOLVE_UNIX was restricted. In case of a denial, connect() and sendmsg() return EACCES, which is the same error as it is returned if the user does not have the write bit in the traditional UNIX file system permissions of that file. The access_mask_t type grows from u16 to u32 to make space for the new access right. This also doubles the size of struct layer_access_masks from 32 byte to 64 byte. To avoid memory layout inconsistencies between architectures (especially m68k), pack and align struct access_masks [2]. Document the (possible future) interaction between scoped flags and other access rights in struct landlock_ruleset_attr, and summarize the rationale, as discussed in code review leading up to [3]. This feature was created with substantial discussion and input from Justin Suess, Tingmao Wang and Mickaël Salaün. Cc: Tingmao Wang <m@maowtm.org> Cc: Justin Suess <utilityemal77@gmail.com> Cc: Kuniyuki Iwashima <kuniyu@google.com> Suggested-by: Jann Horn <jannh@google.com> Link[1]: https://github.com/landlock-lsm/linux/issues/36 Link[2]: https://lore.kernel.org/all/20260401.Re1Eesu1Yaij@digikod.net/ Link[3]: https://lore.kernel.org/all/20260205.8531e4005118@gnoack.org/ Signed-off-by: Günther Noack <gnoack3000@gmail.com> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20260327164838.38231-5-gnoack3000@gmail.com [mic: Fix kernel-doc formatting, pack and align access_masks] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Mickaël Salaün
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a060ac0b8c
|
selftests/landlock: Fix format warning for __u64 in net_test
On architectures where __u64 is unsigned long (e.g. powerpc64), using
%llx to format a __u64 triggers a -Wformat warning because %llx expects
unsigned long long. Cast the argument to unsigned long long.
Cc: Günther Noack <gnoack@google.com>
Cc: stable@vger.kernel.org
Fixes:
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