Convert "5way switch" gpio-keys device and smsc911x ethernet controller
to use static device properties instead of bespoke platform data
structures for configuration.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[Bartosz: use platform_device_info::swnode]
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Convert I2C-gpio device and GPIO-connected LEDs on GPR board to software
nodes/properties, so that support for platform data can be removed from
gpio-leds driver (which will rely purely on generic device properties
for configuration).
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[Bartosz: use platform_device_info::swnode]
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
GPIO subsystem is switching the way it locates GPIO chip instances for
GPIO references in software nodes by doing identity matching instead of
matching on node names. Switch to using software nodes attached to gpio
chips instead of using freestanding software nodes.
Also stop supplying platform data for the spi-gpio controller since
spi-gpio driver can derive number of chipselect lines from device
properties.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
GPIO subsystem is switching the way it locates GPIO chip instances for
GPIO references in software nodes from matching on node names to
identity matching, which necessitates assigning firmware nodes
(software nodes) to GPIO chips.
Move the node definitions for alchemy-gpio1 and alchemy-gpio2 to
arch/misp/alchemy/common/gpiolib.c, register them there, and attach
them to gpio_chip instances. Adjust MTX1 board file to use these nodes.
Note that because nodes need to be registered before they can be used in
PROPERTY_ENTRY_GPIO() we have to do the registration at
postcore_initcall level, otherwise (due to the link order) MTX1 board
initialization code will run first.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[Bartosz: use platform_device_info::swnode]
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Board files under arch/mips/alchemy/ define functions called from
db1xxx.c but their prototypes are only in that .c file instead of being
declared in a common header. This causes several build warnings about
missing prototypes. Provide these prototypes in a new header and include
it where necessary.
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Pull in the platform.h header into platform.c to fix the following
warning:
arch/mips/alchemy/devboards/platform.c:68:12: warning: no previous prototype for ‘db1x_register_pcmcia_socket’ [-Wmissing-prototypes]
68 | int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/alchemy/devboards/platform.c:152:12: warning: no previous prototype for ‘db1x_register_norflash’ [-Wmissing-prototypes]
152 | int __init db1x_register_norflash(unsigned long size, int width,
| ^~~~~~~~~~~~~~~~~~~~~~
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
There is no need to export the gio device release function as the
devices are reference counted.
Drop the export along with the unused inline wrapper.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Driver core expects devices to be dynamically allocated and will, for
example, complain loudly when no release function has been provided.
Use root_device_register() to allocate and register the root device
instead of open coding using a static device.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The gio probe function needlessly takes a device reference which is
never released and therefore prevents unbound gio devices from being
freed.
Fixes: e84de0c619 ("MIPS: GIO bus support for SGI IP22/28")
Cc: stable@vger.kernel.org # 3.3
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The gio device release callback was never wired up so gio devices are
not freed when the last reference is dropped.
Fixes: e84de0c619 ("MIPS: GIO bus support for SGI IP22/28")
Cc: stable@vger.kernel.org # 3.3
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The gio bus root device is a statically allocated object which must not
be freed by kfree() on failure to register the device or bus.
Fixes: 82242d28ff ("MIPS: IP22: Add missing put_device call")
Cc: stable@vger.kernel.org # 3.17
Cc: Levente Kurusa <levex@linux.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Loongson 7A series PCH contain a LPC IRQ controller.
Add the device tree node of it.
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The RTC's address is after UARTs, however the node is currently before
them.
Re-order the node to match address sequence.
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
kconfiglint reports:
K008: config FIT_IMAGE_FDT_EPM5 has prompts in 2 separate definitions
The FIT_IMAGE_FDT_EPM5 Kconfig symbol is defined identically in two places:
arch/mips/Kconfig:1052
arch/mips/mobileye/Kconfig:17
Both have the same prompt, depends, default, and help text. Since
arch/mips/mobileye/Kconfig is sourced from arch/mips/Kconfig, both
definitions are parsed and the symbol ends up with two prompts.
The symbol was first introduced in commit 101bd58fde ("MIPS: Add
support for Mobileye EyeQ5") directly in
arch/mips/Kconfig. Three months later, commit fbe0fae601 ("MIPS:
mobileye: Add EyeQ6H support") created the
arch/mips/mobileye/Kconfig sub-file to organize the growing Mobileye
platform code and added the MACH_EYEQ5/MACH_EYEQ6H choice along with
a copy of FIT_IMAGE_FDT_EPM5. However, the original definition in
arch/mips/Kconfig was not removed at that time, leaving a duplicate.
Remove the definition from arch/mips/Kconfig, keeping the one in
arch/mips/mobileye/Kconfig where it belongs alongside the related
MACH_EYEQ5 machine type definition that it depends on.
Assisted-by: Claude:claude-opus-4-6 kconfiglint
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Currently, Ralink SoCs use the default ARCH_DMA_MINALIGN value of 128
bytes defined in mach-generic. This is excessive for these platforms
and leads to significant memory waste in kmalloc.
Override ARCH_DMA_MINALIGN to use L1_CACHE_BYTES, which is 16 bytes for
RT288X and 32 bytes for other Ralink SoCs.
Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The last user was removed in commit aea12071d6
("power/supply: Drop obsolete JZ4740 driver") and replaced by
a self-contained IIO-based driver. No file includes this header.
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The last user was the JZ4740 MFD ADC driver, removed in commit
ff71266aa4 ("mfd: Drop obsolete JZ4740 driver") and replaced
by a self-contained IIO driver. No file includes or references
this header.
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
A MIPS allmodconfig built with LLVM can select CPU_MIPS32_R1 together
with MIPS_MT_SMP. In that configuration clang invokes the integrated
assembler with -march=mips32, and the MIPS MT path in cps-vec.S fails
to assemble two jr.hb instructions:
arch/mips/kernel/cps-vec.S:376:2: error: instruction requires
a CPU feature not currently enabled
arch/mips/kernel/cps-vec.S:490:4: error: instruction requires
a CPU feature not currently enabled
The earlier jr.hb in the same file is already assembled inside a .set
MIPS_ISA_LEVEL_RAW scope. The two failing sites are reached after
popping back to the file's base ISA level, so LLVM correctly rejects
them for an R1 target.
Wrap those jr.hb instructions in the same ISA-level push/pop used by
the working site. This keeps the MT code unchanged while making the
required R2 hazard-branch encoding explicit to the assembler.
Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
In 64-bit configurations calling the initial console output handler from
a kernel thread other than the initial one will result in a situation
where the stack has been placed in the XKPHYS 64-bit memory segment and
consequently so has been the buffer allocated there that is used as the
argument corresponding to the `%s' output conversion specifier for the
firmware's printf() entry point.
This 64-bit address will then be truncated by 32-bit firmware, resulting
in an attempt to access the wrong memory location, which in turn will
cause all kinds of unpredictable behaviour, such as a kernel crash:
Console: colour dummy device 160x64
Calibrating delay loop... 49.36 BogoMIPS (lpj=192512)
pid_max: default: 32768 minimum: 301
CPU 0 Unable to handle kernel paging request at virtual address 000000000203bd00, epc == ffffffffbfc08364, ra == ffffffffbfc08800
Oops[#1]:
CPU: 0 PID: 0 Comm: swapper Not tainted 5.18.0-rc2-00254-gfb649bda6f56-dirty #121
$ 0 : 0000000000000000 0000000000000001 0000000000000023 ffffffff80684ba0
$ 4 : 000000000203bd00 ffffffffbfc0f3b4 ffffffffffffffff 0000000000000073
$ 8 : 0a303d7469000000 0000000000000000 0000000000000073 ffffffffbfc0f473
$12 : 0000000000000002 0000000000000000 ffffffff80684c1c 0000000000000000
$16 : 0000000000000000 ffffffff80596dc9 0000000000000000 ffffffffbfc09240
$20 : ffffffff80684c40 ffffffffbfc0f400 000000000000002d 000000000000002b
$24 : ffffffffffffffbf 000000000203bd00
$28 : ffffffff805f0000 ffffffff80684b58 0000000000000030 ffffffffbfc08800
Hi : 0000000000000000
Lo : 0000000000000aa8
epc : ffffffffbfc08364 0xffffffffbfc08364
ra : ffffffffbfc08800 0xffffffffbfc08800
Status: 140120e2 KX SX UX KERNEL EXL
Cause : 00000008 (ExcCode 02)
BadVA : 000000000203bd00
PrId : 00000430 (R4000SC)
Modules linked in:
Process swapper (pid: 0, threadinfo=(____ptrval____), task=(____ptrval____), tls=0000000000000000)
Stack : 0000000000000000 0000000000000000 0000000000000000 0000004d0000004d
80684cc0806a2a40 80596dc80000004d 8061000000000000 bfc0850c80684c38
0000000000000000 000000000203bd00 0000000000000000 0000000000000000
0000000000000000 00000000bfc0f3b4 0000000000000000 0000000000000000
0000000000000000 0000000000000000 0000000000000000 0000000000000000
0000000000000000 0000000000000000 0000000000000000 0000000000000000
0000002500000000 0000000000000000 0000000000000000 802c1a7400000000
0203bd0080596dc8 0203bd4d69000000 6c61632000000018 5f746567646e6172
6c616320625f6d6f 5f736e5f6d6f7266 206361323778302b 303d74696e726320
806a0a38806b0000 806a0a38806b0000 00000000806b0000 80683c58806b0000
...
Call Trace:
Code: a082ffff 03e00008 00601021 <80820000> 00001821 10400005 24840001 80820000 24630001
---[ end trace 0000000000000000 ]---
Kernel panic - not syncing: Fatal exception in interrupt
KN04 V2.1k (PC: 0xa0026768, SP: 0x806848e8)
>>
In this case the pointer in $4 was truncated from 0x980000000203bd00 to
0x000000000203bd00.
This may happen when no final console driver has been enabled in the
configuration and consequently the initial console continues being used
late into bootstrap or with an upcoming change that will switch the zs
driver to use a platform device, which in turn will make the console
handover happen only after other kernel threads have already been
started.
Fix the issue by making the buffer static and initdata, and therefore
placed in the CKSEG0 32-bit compatibility segment, observing that the
console output handler is called with the console lock held, implying
no need for this code to be reentrant. Add an assertion to verify the
buffer actually has been placed in a compatibility segment.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Cc: stable@vger.kernel.org # v2.6.12+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
In 64-bit configurations calling any firmware entry points from a kernel
thread other than the initial one will result in a situation where the
stack has been placed in the XKPHYS 64-bit memory segment.
Consequently the stack pointer is no longer a 32-bit value and when the
32-bit firmware code called uses 32-bit ALU operations to manipulate the
stack pointer, the calculated result is incorrect (in fact in the 64-bit
MIPS ISA almost all 32-bit ALU operations will produce an unpredictable
result when executed on 64-bit data) and control goes astray.
This may happen when no final console driver has been enabled in the
configuration and consequently the initial console continues being used
late into bootstrap, or with an upcoming change that will switch the zs
driver to use a platform device, which in turn will make the console
handover happen only after other kernel threads have already been
started, and the kernel will hang at:
pid_max: default: 32768 minimum: 301
or somewhat later, but always before:
cblist_init_generic: Setting adjustable number of callback queues.
has been printed.
It seems that only the prom_printf() entry point is affected. Of all
the other entry points wired only rex_slot_address() and rex_gettcinfo()
are called from a kernel thread other than the initial one, specifically
kernel_init(), and they are leaf functions that do no business with the
stack, having worked with no issue ever since 64-bit support was added
for the platform back in 2002.
To address this issue then, arrange for the stack to be switched in the
o32 wrapper as required for prom_printf() only, by supplying call_o32()
with a pointer to a chunk of initdata space, which is placed in the
CKSEG0 32-bit compatibility segment, observing that prom_printf() is
only called from console output handler and therefore with the console
lock held, implying no need for this code to be reentrant.
Other firmware entry points may be called with interrupts enabled and no
lock held, and may therefore require that call_o32() be reentrant. They
trigger no issue at this point and "if it ain't broke, don't fix it," so
just leave them alone.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Cc: stable@vger.kernel.org # v2.6.12+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
There is no need for IOASIC DMA error interrupts to use the IRQF_ONESHOT
flag, because while they do need to have the source cleared only at the
conclusion of handling, the action handler supplied is either run in the
hardirq context with interrupts disabled at the CPU level or, where IRQ
threading has been forced, the primary handler has the IRQF_ONESHOT flag
implicitly added and therefore the original action handler, now run as
the thread handler and with interrupts enabled in the CPU, is executed
with the originating interrupt line masked. Therefore no interrupt will
retrigger regardless until the original request has been handled.
Link: https://lore.kernel.org/r/20260127135334.qUEaYP9G@linutronix.de/
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Remove a bunch of compilation warnings for halt/reset handlers:
arch/mips/dec/reset.c:22:17: warning: no previous prototype for 'dec_machine_restart' [-Wmissing-prototypes]
22 | void __noreturn dec_machine_restart(char *command)
| ^~~~~~~~~~~~~~~~~~~
arch/mips/dec/reset.c:27:17: warning: no previous prototype for 'dec_machine_halt' [-Wmissing-prototypes]
27 | void __noreturn dec_machine_halt(void)
| ^~~~~~~~~~~~~~~~
arch/mips/dec/reset.c:32:17: warning: no previous prototype for 'dec_machine_power_off' [-Wmissing-prototypes]
32 | void __noreturn dec_machine_power_off(void)
| ^~~~~~~~~~~~~~~~~~~~~
arch/mips/dec/reset.c:38:13: warning: no previous prototype for 'dec_intr_halt'
[-Wmissing-prototypes]
38 | irqreturn_t dec_intr_halt(int irq, void *dev_id)
| ^~~~~~~~~~~~~
(which get promoted to compilation errors with CONFIG_WERROR), by moving
the local prototypes from arch/mips/dec/setup.c to a dedicated header
for arch/mips/dec/reset.c to use as well. No functional change.
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
As from commit 8f99a16265 ("MIPS: Tracing: Add IRQENTRY_EXIT section
for MIPS") do_IRQ() is not a macro anymore and can be invoked directly
from assembly code, as a tail call. Remove the dec_irq_dispatch() stub
then and the indirection previously introduced with commit 187933f236
("[MIPS] do_IRQ cleanup"), improving performance by reducing the number
of control flow changes and the overall instruction count, while fixing
a compiler's complaint about a missing prototype for said stub:
arch/mips/dec/setup.c:780:25: warning: no previous prototype for 'dec_irq_dispatch' [-Wmissing-prototypes]
780 | asmlinkage unsigned int dec_irq_dispatch(unsigned int irq)
| ^~~~~~~~~~~~~~~~
(which gets promoted to a compilation error with CONFIG_WERROR).
Fixes: 8f99a16265 ("MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
As from commit 8f99a16265 ("MIPS: Tracing: Add IRQENTRY_EXIT section
for MIPS") do_IRQ() is not a macro anymore and can be invoked directly
from assembly code again, however its `asmlinkage' annotation has never
been brought back from the previous removal of the function with commit
187933f236 ("[MIPS] do_IRQ cleanup").
Since calling the function directly from assembly code has a performance
advantage, add the annotation back so that the DEC platform can make use
of this again.
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Fix an issue in call_o32() where the upper 32-bit half of incoming n64
stack arguments is fetched and used for outgoing o32 stack arguments on
big-endian platforms.
This code was adapted from arch/mips/dec/prom/call_o32.S which was meant
for a little-endian platform only and therefore using 32-bit loads from
64-bit stack slot locations holding incoming stack arguments resulted in
correct values being retrieved for data that is expected to be 32-bit.
This works on little-endian platforms where the lower 32-bit half of the
64-bit value is located at every 64-bit stack slot location. However on
big-endian platforms the lower 32-bit half is instead located at offset
4 from every 64-bit stack slot location.
So to fix the issue the offset of 4 would have to be used on big-endian
platforms only, or alternatively a 64-bit load from the 64-bit stack
slot location can be used across the board, as the subsequent 32-bit
store to the corresponding outgoing stack argument slot will correctly
truncate the value and cause no unpredictable result. We already take
advantage of this architectural feature for the incoming arguments held
in $a6 and $a7 registers, since the o32 wrapper does not know how many
incoming arguments there are and consequently propagates incoming data
which may not be 32-bit.
Since this code is generally supposed to be used with the stack located
in cached memory there is no extra overhead expected for 64-bit loads as
opposed to 32-bit ones, so pick this variant for code simplicity.
Fixes: 231a35d372 ("[MIPS] RM: Collected changes")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This function is not used outside of this compilation unit so make it
static.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
GPIOLIB wants to remove the software node's name matching against GPIO
controller's label that is going on behind the scenes in software node
lookup. To that end, we need to convert all existing users to using
software nodes actually attached to the GPIO devices they represent.
In order to use an attached software node with the GPIO controller on
rb532: convert the GPIO module into a real platform device, provide
platform device info for it in device.c and assign the software node
using its swnode field.
The software node will get inherited by the GPIO chip from the parent
platform device in devm_gpiochip_add_data() as we don't set the fwnode
using any other of the mechanisms.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
- Fix ITS EventID sanitisation when restoring an interrupt translation
table.
- Fix PPI memory leak when failing to initialise a vcpu.
- Correctly return an error when the validation of a hypervisor trace
descriptor fails, and limit this validation to protected mode only.
RISC-V:
- Fix invalid HVA warning in steal-time recording
- Return SBI_ERR_FAILURE to guest upon OOM in pmu_event_info()
and pmu_snapshot_set_shmem()
- Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
- Fix sign extension of value for MMIO loads
s390:
- Fix bugs in vSIE (nested virtualization) and UCONTROL, caused by the page
table rewrite.
x86:
- Apply erratum #1235 workaround (disable AVIC IPI virtualization) on Hygon
Family 18h, just like on AMD Family 17h.
- When KVM_CAP_X86_APIC_BUS_CYCLES_NS is queried on a specific VM, return
the VM's configured APIC bus frequency instead of the default. This
is less confusing (read: not wrong) and makes it easier to fill in CPUID
information that communicates the APIC bus frequency to the guest.
Selftests:
- Do not include glibc-internal <bits/endian.h>; it worked by chance and
broke building KVM selftests with musl.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"arm64:
- Fix ITS EventID sanitisation when restoring an interrupt
translation table.
- Fix PPI memory leak when failing to initialise a vcpu.
- Correctly return an error when the validation of a hypervisor trace
descriptor fails, and limit this validation to protected mode only.
RISC-V:
- Fix invalid HVA warning in steal-time recording
- Return SBI_ERR_FAILURE to guest upon OOM in pmu_event_info() and
pmu_snapshot_set_shmem()
- Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
- Fix sign extension of value for MMIO loads
s390:
- Fix bugs in vSIE (nested virtualization) and UCONTROL, caused by
the page table rewrite.
x86:
- Apply erratum #1235 workaround (disable AVIC IPI virtualization) on
Hygon Family 18h, just like on AMD Family 17h.
- When KVM_CAP_X86_APIC_BUS_CYCLES_NS is queried on a specific VM,
return the VM's configured APIC bus frequency instead of the
default. This is less confusing (read: not wrong) and makes it
easier to fill in CPUID information that communicates the APIC bus
frequency to the guest.
Selftests:
- Do not include glibc-internal <bits/endian.h>; it worked by chance
and broke building KVM selftests with musl"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Disable AVIC IPI virtualization on Hygon Family 18h (erratum #1235)
KVM: selftests: Verify that KVM returns the configured APIC cycle length
KVM: x86: Return the VM's configured APIC bus frequency when queried
KVM: selftests: elf: Include <endian.h> instead of <bits/endian.h>
KVM: s390: Properly reset zero bit in PGSTE
KVM: s390: vsie: Fix redundant rmap entries
KVM: s390: vsie: Fix unshadowing logic
KVM: s390: Fix leaking kvm_s390_mmu_cache in case of errors
KVM: s390: vsie: Fix memory leak when unshadowing
KVM: arm64: Fix nVHE/pKVM hyp tracing error on invalid desc
KVM: arm64: vgic: Free private_irqs when init fails after allocation
KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits
RISC-V: KVM: Fix sign extension for MMIO loads
RISC-V: KVM: Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
riscv: kvm: return SBI_ERR_FAILURE for pmu_event_info() when OOM
riscv: kvm: return SBI_ERR_FAILURE for pmu_snapshot_set_shmem() when OOM
RISC-V: KVM: Fix invalid HVA warning in steal-time recording
- On SEV guests, handle set_memory_{encrypted,decrypted}()
failures more conservatively by assuming that all affected
pages are unencrypted (Carlos López)
- Disable broadcast TLB flush when PCID is disabled
(Tom Lendacky)
- Fix VMX vs. hrtimer_rearm_deferred() regression
(Peter Zijlstra)
- Move IRQ/NMI dispatch code from KVM into x86 core, to
prepare for a KVM x2apic fix (Peter Zijlstra)
- Fix incorrect munmap() size on map_vdso() failure
(Guilherme Giacomo Simoes)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- On SEV guests, handle set_memory_{encrypted,decrypted}() failures
more conservatively by assuming that all affected pages are
unencrypted (Carlos López)
- Disable broadcast TLB flush when PCID is disabled (Tom Lendacky)
- Fix VMX vs. hrtimer_rearm_deferred() regression (Peter Zijlstra)
- Move IRQ/NMI dispatch code from KVM into x86 core, to prepare for a
KVM x2apic fix (Peter Zijlstra)
- Fix incorrect munmap() size on map_vdso() failure (Guilherme Giacomo
Simoes)
* tag 'x86-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
virt: sev-guest: Explicitly leak pages in unknown state
x86/mm: Disable broadcast TLB flush when PCID is disabled
x86/kvm/vmx: Fix VMX vs hrtimer_rearm_deferred()
x86/kvm/vmx: Move IRQ/NMI dispatch from KVM into x86 core
x86/vdso: Fix incorrect size in munmap() on map_vdso() failure
- Fix the hardware probing error path of the renesas-rzt2h
irqchip driver
- Fix the exynos-combiner irqchip driver on -rt kernels
by turning the IRQ controller spinlock into a raw spinlock
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqchip driver fixes from Ingo Molnar:
- Fix the hardware probing error path of the renesas-rzt2h
irqchip driver
- Fix the exynos-combiner irqchip driver on -rt kernels
by turning the IRQ controller spinlock into a raw spinlock
* tag 'irq-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/renesas-rzt2h: Use pm_runtime_put_sync() in probe error path
irqchip/exynos-combiner: Switch to raw_spinlock
- Fix debugobjects regression on -rt kernels: don't fill the
pool (which uses a coarse lock) if ->pi_blocked_on, because
that messes up the priority inheritance of callers.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects fix from Ingo Molnar::
- Fix debugobjects regression on -rt kernels: don't fill the pool
(which uses a coarse lock) if ->pi_blocked_on, because that messes up
the priority inheritance of callers
* tag 'core-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debugobjects: Do not fill_pool() if pi_blocked_on
- adm1266: Various fixes from Abdurrahman Hussain
The fixed issues were reported by Sashiko as part of a code review of a
functional change in the driver.
- lenovo-ec-sensors: Convert to devm_request_region() to fix release_region
cleanup, and fix EC "MCHP" signature validation logic, from Kean Ren
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Merge tag 'hwmon-for-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- adm1266: Various fixes from Abdurrahman Hussain
The fixed issues were reported by Sashiko as part of a code review of
a functional change in the driver.
- lenovo-ec-sensors: Convert to devm_request_region() to fix
release_region cleanup, and fix EC "MCHP" signature validation logic,
from Kean Ren
* tag 'hwmon-for-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (pmbus/adm1266) serialize sequencer_state debugfs read with pmbus_lock
hwmon: (pmbus/adm1266) serialize NVMEM blackbox read with pmbus_lock
hwmon: (pmbus/adm1266) serialize GPIO PMBus accesses with pmbus_lock
hwmon: (pmbus/adm1266) register the nvmem device after pmbus_do_probe()
hwmon: (pmbus/adm1266) register the gpio_chip after pmbus_do_probe()
hwmon: (pmbus/adm1266) reject short block-read responses in the GPIO accessors
hwmon: (pmbus/adm1266) don't clobber GPIO bits before PDIO read in get_multiple
hwmon: (pmbus/adm1266) cap PDIO scan in get_multiple at ADM1266_PDIO_NR
hwmon: (pmbus/adm1266) bounce blackbox records through a protocol-sized buffer
hwmon: (pmbus/adm1266) include adapter number in GPIO line label
hwmon: (pmbus/adm1266) include PEC byte in pmbus_block_xfer read buffer
hwmon: (pmbus/adm1266) reject implausible blackbox record_count
hwmon: (pmbus/adm1266) widen blackbox-info buffer to I2C_SMBUS_BLOCK_MAX
hwmon: (pmbus/adm1266) seed timestamp from the real-time clock
hwmon: (lenovo-ec-sensors): Fix EC "MCHP" signature validation logic
hwmon: (lenovo-ec-sensors): Convert to devm_request_region()
After commit 3392291fc5 ("drm/msm: Fix shrinker deadlock"), all
supported versions of clang warn (or error with CONFIG_WERROR=y):
drivers/gpu/drm/msm/msm_gem_shrinker.c:105:58: error: omitting the parameter name in a function definition is a C23 extension [-Werror,-Wc23-extensions]
105 | purge(struct drm_gem_object *obj, struct ww_acquire_ctx *)
| ^
drivers/gpu/drm/msm/msm_gem_shrinker.c:117:58: error: omitting the parameter name in a function definition is a C23 extension [-Werror,-Wc23-extensions]
117 | evict(struct drm_gem_object *obj, struct ww_acquire_ctx *)
| ^
2 errors generated.
With older but supported versions of GCC, this is an unconditional hard error:
drivers/gpu/drm/msm/msm_gem_shrinker.c: In function 'purge':
drivers/gpu/drm/msm/msm_gem_shrinker.c:105:35: error: parameter name omitted
purge(struct drm_gem_object *obj, struct ww_acquire_ctx *)
^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/msm/msm_gem_shrinker.c: In function 'evict':
drivers/gpu/drm/msm/msm_gem_shrinker.c:117:35: error: parameter name omitted
evict(struct drm_gem_object *obj, struct ww_acquire_ctx *)
^~~~~~~~~~~~~~~~~~~~~~~
Restore the parameter name to clear up the warnings, renaming it
"unused" to make it clear it is only needed to satisfy the prototype of
drm_gem_lru_scan().
Cc: stable@vger.kernel.org
Fixes: 3392291fc5 ("drm/msm: Fix shrinker deadlock")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'for-7.1-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A batch of fixes to simple quotas:
- add conditional rescheduling point not dependent on the lock during
inode iterations to avoid delays with PREEMPT_NONE enabled
- fix subvolume deletion so it does not break the squota invariants
- properly handle enabling squota, tracking extents in the initial
transaction
- catch and warn about underflows, clamp to zero to avoid further
problems
And one fix to inode size handling:
- fix handling of preallocated extents beyond i_size when not using
the no-holes feature"
* tag 'for-7.1-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: swallow btrfs_record_squota_delta() ENOENT
btrfs: clamp to avoid squota underflow
btrfs: fix squota accounting during enable generation
btrfs: check for subvolume before deleting squota qgroup
btrfs: always drop root->inodes lock before cond_resched()
btrfs: mark file extent range dirty after converting prealloc extents
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-7.1-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Carlos Maiolino:
"A single fix for a race in xfs buffer cache which may lead to
filesystem shutdown due to inconsistent metadata if the buffer
lookup happens to find an old dead buffer still in the cache"
* tag 'xfs-fixes-7.1-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix a buffer lookup against removal race
- Implement _THIS_IP_ for inline asm
- Add Simon Schuster as a maintainer and mark the NIOS2 as Supported
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Merge tag 'nios2_updates_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux
Pull nios2 fixes from Dinh Nguyen:
- Implement _THIS_IP_ for inline asm
- Add Simon Schuster as a maintainer and mark the NIOS2 as Supported
* tag 'nios2_updates_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
nios2: Implement _THIS_IP_ using inline asm
MAINTAINERS: arch/nios2: Add Simon Schuster as co-maintainer
The offset for the cleanup-label jump is computed before the MOV R7
instruction is emitted, but the JMP lands after it. Account for the
extra insn in the offset calculation (-2 instead of -1). Drop the
redundant self-loop in the else branch; gen->error = -ERANGE already
marks the generation as failed.
Fixes: fb2b0e2901 ("libbpf: Update light skeleton for signing")
Signed-off-by: KP Singh <kpsingh@kernel.org>
Link: https://lore.kernel.org/r/20260522215337.662271-2-kpsingh@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
- Remove the software node on platform device release(); without this,
the software node remains registered after the device is gone and a
subsequent platform_device_register_full() reusing the same node fails
with -EBUSY
- In sysfs_update_group(), do not remove a pre-existing directory when
create_files() fails; the previous code would silently destroy a sysfs
group that the caller did not create
- Set fwnode->secondary to NULL in fwnode_init() to avoid dereferencing
uninitialized memory (e.g. in dev_to_swnode()) when the firmware node
is allocated on the stack or via a non-zeroing allocator
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Merge tag 'driver-core-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Remove the software node on platform device release(); without this,
the software node remains registered after the device is gone and a
subsequent platform_device_register_full() reusing the same node
fails with -EBUSY
- In sysfs_update_group(), do not remove a pre-existing directory when
create_files() fails; the previous code would silently destroy a
sysfs group that the caller did not create
- Set fwnode->secondary to NULL in fwnode_init() to avoid dereferencing
uninitialized memory (e.g. in dev_to_swnode()) when the firmware node
is allocated on the stack or via a non-zeroing allocator
* tag 'driver-core-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
device property: set fwnode->secondary to NULL in fwnode_init()
sysfs: don't remove existing directory on update failure
driver core: platform: remove software node on release()
- syzbot triggred crash in rxe due to concurrent plug/unplug
- Possible non-zero'd memory exposed to userspace in bnxt_re
- Malicous 'magic packet' with SIW causes a buffer overflow
- Tighten the new uAPI validation code to not crash in debugging prints
and have the right module dependencies in drivers
- mana was missing the max_msg_sz report to userspace
- UAF in rtrs on an error path
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
- syzbot triggred crash in rxe due to concurrent plug/unplug
- Possible non-zero'd memory exposed to userspace in bnxt_re
- Malicous 'magic packet' with SIW causes a buffer overflow
- Tighten the new uAPI validation code to not crash in debugging prints
and have the right module dependencies in drivers
- mana was missing the max_msg_sz report to userspace
- UAF in rtrs on an error path
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/rtrs: Fix use-after-free in path file creation cleanup
RDMA/mana_ib: Report max_msg_sz in mana_ib_query_port
RDMA/core: Do not read wild stack memory in uverbs_get_handler_fn()
RDMA/core: Move the _ib_copy_validate_udata* functions to ib_core_uverbs
RDMA/siw: Reject MPA FPDU length underflow before signed receive math
RDMA/bnxt_re: zero shared page before exposing to userspace
selftests/rdma: explicitly skip tests when required modules are missing
RDMA/nldev: Add mutual exclusion in nldev_dellink()
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-7.1-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux into test_merge
xfs: fixes for v7.1-rc5
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Lines starting with '#' will be ignored.
- Buffer overflow due to missing input validation in pds
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Merge tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl
Pull fwctl fix from Jason Gunthorpe:
- Buffer overflow due to missing input validation in pds
* tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl:
fwctl: pds: Validate RPC input size before parsing
Hygon Family 18h CPUs are derived from AMD Family 17h (Zen1) silicon and
share the same erratum #1235: hardware may read a stale IsRunning=1 bit
during ICR write emulation and silently fail to generate an
AVIC_IPI_FAILURE_TARGET_NOT_RUNNING VM-Exit on the sending vCPU.
The absence of the VM-Exit causes KVM to miss the required wakeup of
blocking target vCPUs, leading to hung vCPUs and unbounded delays in
guest execution.
Extend the existing AMD Family 17h erratum #1235 workaround to also cover
Hygon Family 18h. With IPI virtualization disabled, KVM never sets
IsRunning=1 in the Physical ID table, so every non-self IPI generates a
VM-Exit and is correctly emulated.
Fixes: 8de4a1c816 ("KVM: SVM: Disable (x2)AVIC IPI virtualization if CPU has erratum #1235")
Cc: <stable@vger.kernel.org>
Signed-off-by: Tina Zhang <zhang_wei@open-hieco.net>
Message-ID: <20260522040014.3380201-1-zhang_wei@open-hieco.net>
Add checks in the APIC bus clock test to verify that querying
KVM_CAP_X86_APIC_BUS_CYCLES_NS on the VM after changing the frequency
returns the VM's actual APIC cycle length, not KVM's default. For
giggles, verify that KVM still returns its default frequency for the
system-scoped check.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20260522173526.3539407-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
