mirror of
https://github.com/torvalds/linux.git
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 7.1-rc5
Cross-merge BPF and other fixes after downstream PR. Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Alexei Starovoitov
commit
eb19eead36
3
.mailmap
3
.mailmap
|
|
@ -584,6 +584,8 @@ Mayuresh Janorkar <mayur@ti.com>
|
|||
Md Sadre Alam <quic_mdalam@quicinc.com> <mdalam@codeaurora.org>
|
||||
Miaoqing Pan <quic_miaoqing@quicinc.com> <miaoqing@codeaurora.org>
|
||||
Michael Buesch <m@bues.ch>
|
||||
Michal Grzeschik <mgr@kernel.org> <m.grzeschik@pengutronix.de>
|
||||
Michal Grzeschik <mgr@kernel.org> <mgr@pengutronix.de>
|
||||
Michael Riesch <michael.riesch@collabora.com> <michael.riesch@wolfvision.net>
|
||||
Michal Simek <michal.simek@amd.com> <michal.simek@xilinx.com>
|
||||
Michel Dänzer <michel@tungstengraphics.com>
|
||||
|
|
@ -857,6 +859,7 @@ Tobias Klauser <tklauser@distanz.ch> <klto@zhaw.ch>
|
|||
Tobias Klauser <tklauser@distanz.ch> <tklauser@nuerscht.ch>
|
||||
Tobias Klauser <tklauser@distanz.ch> <tklauser@xenon.tklauser.home>
|
||||
Todor Tomov <todor.too@gmail.com> <todor.tomov@linaro.org>
|
||||
Tomasz Jeznach <tomasz.jeznach@linux.dev> <tjeznach@rivosinc.com>
|
||||
Tony Luck <tony.luck@intel.com>
|
||||
Trilok Soni <quic_tsoni@quicinc.com> <tsoni@codeaurora.org>
|
||||
TripleX Chung <xxx.phy@gmail.com> <triplex@zh-kernel.org>
|
||||
|
|
|
|||
|
|
@ -786,6 +786,7 @@ networking/altera_tse networking/device_drivers/ethernet/altera/altera_tse
|
|||
networking/bpf_flow_dissector bpf/prog_flow_dissector
|
||||
networking/cxacru networking/device_drivers/atm/cxacru
|
||||
networking/defza networking/device_drivers/fddi/defza
|
||||
networking/device_drivers/3com/3c509 networking/device_drivers/ethernet/3com/3c509
|
||||
networking/device_drivers/3com/vortex networking/device_drivers/ethernet/3com/vortex
|
||||
networking/device_drivers/amazon/ena networking/device_drivers/ethernet/amazon/ena
|
||||
networking/device_drivers/aquantia/atlantic networking/device_drivers/ethernet/aquantia/atlantic
|
||||
|
|
|
|||
|
|
@ -43,6 +43,11 @@ Support for changing the platform performance mode is currently not implemented.
|
|||
Battery Charging Control
|
||||
------------------------
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||||
|
||||
.. warning:: Some devices do not properly implement the charging threshold interface. Forcing
|
||||
the driver to enable access to said interface on such devices might damage the
|
||||
battery [1]_. Because of this the driver will not enable said feature even when
|
||||
using the ``force`` module parameter.
|
||||
|
||||
The ``uniwill-laptop`` driver supports controlling the battery charge limit. This happens over
|
||||
the standard ``charge_control_end_threshold`` power supply sysfs attribute. All values
|
||||
between 1 and 100 percent are supported.
|
||||
|
|
@ -70,3 +75,8 @@ The ``uniwill-laptop`` driver allows to set the configurable TGP for devices wit
|
|||
allow it.
|
||||
|
||||
See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details.
|
||||
|
||||
References
|
||||
==========
|
||||
|
||||
.. [1] https://www.reddit.com/r/XMG_gg/comments/ld9yyf/battery_limit_hidden_function_discovered_on/
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|
|
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|
|
@ -358,9 +358,9 @@ Dynamic energy performance profile
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The amd-pstate driver supports dynamically selecting the energy performance
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profile based on whether the machine is running on AC or DC power.
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|
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Whether this behavior is enabled by default depends on the kernel
|
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config option `CONFIG_X86_AMD_PSTATE_DYNAMIC_EPP`. This behavior can also be overridden
|
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at runtime by the sysfs file ``/sys/devices/system/cpu/cpufreq/policyX/dynamic_epp``.
|
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Whether this behavior is enabled by default depends on the kernel command line option
|
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``amd_dynamic_epp`` is set. This behavior can also be overridden
|
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at runtime by the sysfs file ``/sys/devices/system/cpu/amd_pstate/dynamic_epp``.
|
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|
||||
When set to enabled, the driver will select a different energy performance
|
||||
profile when the machine is running on battery or AC power. The driver will
|
||||
|
|
@ -485,9 +485,8 @@ kernel parameter ``amd_prefcore=disable``.
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``amd_dynamic_epp``
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|
||||
When AMD pstate is in auto mode, dynamic EPP will control whether the kernel
|
||||
autonomously changes the EPP mode. The default is configured by
|
||||
``CONFIG_X86_AMD_PSTATE_DYNAMIC_EPP`` but can be explicitly enabled with
|
||||
``amd_dynamic_epp=enable`` or disabled with ``amd_dynamic_epp=disable``.
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autonomously changes the EPP mode. The default is disabled. It can be enabled
|
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with the kernel parameter ``amd_dynamic_epp=enable``.
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|
||||
User Space Interface in ``sysfs`` - General
|
||||
===========================================
|
||||
|
|
|
|||
|
|
@ -355,11 +355,12 @@ HyperThreading (HT) in the context of Intel processors, is enabled on at least
|
|||
one core, ``intel_pstate`` assigns performance-based priorities to CPUs. Namely,
|
||||
the priority of a given CPU reflects its highest HWP performance level which
|
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causes the CPU scheduler to generally prefer more performant CPUs, so the less
|
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performant CPUs are used when the other ones are fully loaded. However, SMT
|
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siblings (that is, logical CPUs sharing one physical core) are treated in a
|
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special way such that if one of them is in use, the effective priority of the
|
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other ones is lowered below the priorities of the CPUs located in the other
|
||||
physical cores.
|
||||
performant CPUs are used when the other ones are fully loaded. SMT siblings
|
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(that is, logical CPUs sharing one physical core) are given the same priority.
|
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The scheduler can pull tasks from lower-priority cores and place them on any
|
||||
sibling. Since the scheduler spreads tasks among physical cores, tasks will be
|
||||
placed on the SMT siblings of physical cores only after all physical cores are
|
||||
busy.
|
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|
||||
This approach maximizes performance in the majority of cases, but unfortunately
|
||||
it also leads to excessive energy usage in some important scenarios, like video
|
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|
|
|
|||
|
|
@ -21,13 +21,13 @@ call at each patchable function entry, and patches it dynamically at runtime to
|
|||
enable or disable the redirection. In the case of RISC-V, 2 instructions,
|
||||
AUIPC + JALR, are required to compose a function call. However, it is impossible
|
||||
to patch 2 instructions and expect that a concurrent read-side executes them
|
||||
without a race condition. This series makes atmoic code patching possible in
|
||||
without a race condition. This series makes atomic code patching possible in
|
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RISC-V ftrace. Kernel preemption makes things even worse as it allows the old
|
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state to persist across the patching process with stop_machine().
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|
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In order to get rid of stop_machine() and run dynamic ftrace with full kernel
|
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preemption, we partially initialize each patchable function entry at boot-time,
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setting the first instruction to AUIPC, and the second to NOP. Now, atmoic
|
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setting the first instruction to AUIPC, and the second to NOP. Now, atomic
|
||||
patching is possible because the kernel only has to update one instruction.
|
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According to Ziccif, as long as an instruction is naturally aligned, the ISA
|
||||
guarantee an atomic update.
|
||||
|
|
@ -36,8 +36,8 @@ By fixing down the first instruction, AUIPC, the range of the ftrace trampoline
|
|||
is limited to +-2K from the predetermined target, ftrace_caller, due to the lack
|
||||
of immediate encoding space in RISC-V. To address the issue, we introduce
|
||||
CALL_OPS, where an 8B naturally align metadata is added in front of each
|
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pacthable function. The metadata is resolved at the first trampoline, then the
|
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execution can be derect to another custom trampoline.
|
||||
patchable function. The metadata is resolved at the first trampoline, then the
|
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execution can be directed to another custom trampoline.
|
||||
|
||||
CMODX in the User Space
|
||||
-----------------------
|
||||
|
|
|
|||
|
|
@ -78,7 +78,7 @@ the program.
|
|||
|
||||
Per-task indirect branch tracking state can be monitored and
|
||||
controlled via the :c:macro:`PR_GET_CFI` and :c:macro:`PR_SET_CFI`
|
||||
``prctl()` arguments (respectively), by supplying
|
||||
``prctl()`` arguments (respectively), by supplying
|
||||
:c:macro:`PR_CFI_BRANCH_LANDING_PADS` as the second argument. These
|
||||
are architecture-agnostic, and will return -EINVAL if the underlying
|
||||
functionality is not supported.
|
||||
|
|
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|||
|
|
@ -158,13 +158,22 @@ returned.
|
|||
When a message has been received, the location and size of the data with the
|
||||
message can be determined by calling::
|
||||
|
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void crypto_krb5_where_is_the_data(const struct krb5_enctype *krb5,
|
||||
enum krb5_crypto_mode mode,
|
||||
size_t *_offset, size_t *_len);
|
||||
int crypto_krb5_where_is_the_data(const struct krb5_enctype *krb5,
|
||||
enum krb5_crypto_mode mode,
|
||||
size_t *_offset, size_t *_len);
|
||||
|
||||
The caller provides the offset and length of the message to the function, which
|
||||
then alters those values to indicate the region containing the data (plus any
|
||||
padding). It is up to the caller to determine how much padding there is.
|
||||
padding). It is up to the caller to determine how much padding there is. The
|
||||
function returns an error if the length is too small or if the mode is
|
||||
unsupported. An additional function::
|
||||
|
||||
int crypto_krb5_check_data_len(const struct krb5_enctype *krb5,
|
||||
enum krb5_crypto_mode mode,
|
||||
size_t len, size_t min_content);
|
||||
|
||||
is provided to just do a basic check that the decrypted/verified message would
|
||||
have a sufficient minimum payload.
|
||||
|
||||
Preparation Functions
|
||||
---------------------
|
||||
|
|
|
|||
|
|
@ -219,6 +219,7 @@ allOf:
|
|||
- required:
|
||||
- "#sound-dai-cells"
|
||||
else:
|
||||
$ref: /schemas/sound/dai-common.yaml#
|
||||
properties:
|
||||
aux-bus: false
|
||||
required:
|
||||
|
|
@ -243,7 +244,7 @@ allOf:
|
|||
clocks:
|
||||
minItems: 5
|
||||
maxItems: 5
|
||||
clocks-names:
|
||||
clock-names:
|
||||
minItems: 5
|
||||
maxItems: 5
|
||||
|
||||
|
|
@ -264,7 +265,7 @@ allOf:
|
|||
clocks:
|
||||
minItems: 5
|
||||
maxItems: 6
|
||||
clocks-names:
|
||||
clock-names:
|
||||
minItems: 5
|
||||
maxItems: 6
|
||||
|
||||
|
|
@ -277,7 +278,6 @@ allOf:
|
|||
- qcom,sc8180x-dp
|
||||
- qcom,sdm845-dp
|
||||
- qcom,sm8350-dp
|
||||
- qcom,sm8650-dp
|
||||
then:
|
||||
properties:
|
||||
reg:
|
||||
|
|
@ -286,6 +286,24 @@ allOf:
|
|||
clocks:
|
||||
minItems: 6
|
||||
maxItems: 6
|
||||
clock-names:
|
||||
minItems: 6
|
||||
maxItems: 6
|
||||
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,sm8650-dp
|
||||
then:
|
||||
properties:
|
||||
reg:
|
||||
minItems: 5
|
||||
maxItems: 9
|
||||
clocks:
|
||||
minItems: 6
|
||||
maxItems: 6
|
||||
clocks-names:
|
||||
minItems: 6
|
||||
maxItems: 6
|
||||
|
|
@ -306,7 +324,7 @@ allOf:
|
|||
clocks:
|
||||
minItems: 6
|
||||
maxItems: 8
|
||||
clocks-names:
|
||||
clock-names:
|
||||
minItems: 6
|
||||
maxItems: 8
|
||||
|
||||
|
|
@ -326,7 +344,7 @@ allOf:
|
|||
clocks:
|
||||
minItems: 5
|
||||
maxItems: 6
|
||||
clocks-names:
|
||||
clock-names:
|
||||
minItems: 5
|
||||
maxItems: 6
|
||||
|
||||
|
|
|
|||
|
|
@ -119,7 +119,7 @@ examples:
|
|||
mdss_mdp: display-controller@ae01000 {
|
||||
compatible = "qcom,eliza-dpu";
|
||||
reg = <0x0ae01000 0x93000>,
|
||||
<0x0aeb0000 0x2008>;
|
||||
<0x0aeb0000 0x3000>;
|
||||
reg-names = "mdp",
|
||||
"vbif";
|
||||
|
||||
|
|
@ -304,7 +304,7 @@ examples:
|
|||
mdss_dsi0_phy: phy@ae95000 {
|
||||
compatible = "qcom,eliza-dsi-phy-4nm", "qcom,sm8650-dsi-phy-4nm";
|
||||
reg = <0x0ae95000 0x200>,
|
||||
<0x0ae95200 0x280>,
|
||||
<0x0ae95200 0x300>,
|
||||
<0x0ae95500 0x400>;
|
||||
reg-names = "dsi_phy",
|
||||
"dsi_phy_lane",
|
||||
|
|
@ -388,7 +388,7 @@ examples:
|
|||
mdss_dsi1_phy: phy@ae97000 {
|
||||
compatible = "qcom,eliza-dsi-phy-4nm", "qcom,sm8650-dsi-phy-4nm";
|
||||
reg = <0x0ae97000 0x200>,
|
||||
<0x0ae97200 0x280>,
|
||||
<0x0ae97200 0x300>,
|
||||
<0x0ae97500 0x400>;
|
||||
reg-names = "dsi_phy",
|
||||
"dsi_phy_lane",
|
||||
|
|
@ -407,11 +407,15 @@ examples:
|
|||
|
||||
displayport-controller@af54000 {
|
||||
compatible = "qcom,eliza-dp", "qcom,sm8650-dp";
|
||||
reg = <0xaf54000 0x104>,
|
||||
<0xaf54200 0xc0>,
|
||||
<0xaf55000 0x770>,
|
||||
<0xaf56000 0x9c>,
|
||||
<0xaf57000 0x9c>;
|
||||
reg = <0x0af54000 0x200>,
|
||||
<0x0af54200 0x200>,
|
||||
<0x0af55000 0xc00>,
|
||||
<0x0af56000 0x400>,
|
||||
<0x0af57000 0x400>,
|
||||
<0x0af58000 0x400>,
|
||||
<0x0af59000 0x400>,
|
||||
<0x0af5a000 0x600>,
|
||||
<0x0af5b000 0x600>;
|
||||
|
||||
interrupts-extended = <&mdss 12>;
|
||||
|
||||
|
|
|
|||
|
|
@ -70,7 +70,7 @@ examples:
|
|||
display-controller@ae01000 {
|
||||
compatible = "qcom,sm8650-dpu";
|
||||
reg = <0x0ae01000 0x8f000>,
|
||||
<0x0aeb0000 0x2008>;
|
||||
<0x0aeb0000 0x3000>;
|
||||
reg-names = "mdp", "vbif";
|
||||
|
||||
clocks = <&gcc_axi_clk>,
|
||||
|
|
|
|||
|
|
@ -112,7 +112,7 @@ examples:
|
|||
display-controller@ae01000 {
|
||||
compatible = "qcom,sm8650-dpu";
|
||||
reg = <0x0ae01000 0x8f000>,
|
||||
<0x0aeb0000 0x2008>;
|
||||
<0x0aeb0000 0x3000>;
|
||||
reg-names = "mdp", "vbif";
|
||||
|
||||
clocks = <&gcc_axi_clk>,
|
||||
|
|
|
|||
|
|
@ -117,7 +117,7 @@ examples:
|
|||
display-controller@ae01000 {
|
||||
compatible = "qcom,sm8750-dpu";
|
||||
reg = <0x0ae01000 0x93000>,
|
||||
<0x0aeb0000 0x2008>;
|
||||
<0x0aeb0000 0x3000>;
|
||||
reg-names = "mdp",
|
||||
"vbif";
|
||||
|
||||
|
|
@ -389,11 +389,15 @@ examples:
|
|||
|
||||
displayport-controller@af54000 {
|
||||
compatible = "qcom,sm8750-dp", "qcom,sm8650-dp";
|
||||
reg = <0xaf54000 0x104>,
|
||||
<0xaf54200 0xc0>,
|
||||
<0xaf55000 0x770>,
|
||||
<0xaf56000 0x9c>,
|
||||
<0xaf57000 0x9c>;
|
||||
reg = <0x0af54000 0x200>,
|
||||
<0x0af54200 0x200>,
|
||||
<0x0af55000 0xc00>,
|
||||
<0x0af56000 0x400>,
|
||||
<0x0af57000 0x400>,
|
||||
<0x0af58000 0x400>,
|
||||
<0x0af59000 0x400>,
|
||||
<0x0af5a000 0x600>,
|
||||
<0x0af5b000 0x600>;
|
||||
|
||||
interrupts-extended = <&mdss 12>;
|
||||
|
||||
|
|
|
|||
|
|
@ -73,6 +73,15 @@ properties:
|
|||
HSP CSR is to control and get status of different high-speed peripherals
|
||||
(such as Ethernet, USB, SATA, etc.) via register, which can tune
|
||||
board-level's parameters of PHY, etc.
|
||||
|
||||
Additional background information about the High-Speed Subsystem
|
||||
and the HSP CSR block is available in Chapter 10 ("High-Speed Interface")
|
||||
of the EIC7700X SoC Technical Reference Manual, Part 4
|
||||
(EIC7700X_SoC_Technical_Reference_Manual_Part4.pdf). The manual is
|
||||
publicly available at
|
||||
https://github.com/eswincomputing/EIC7700X-SoC-Technical-Reference-Manual/releases
|
||||
|
||||
This reference is provided for background information only.
|
||||
$ref: /schemas/types.yaml#/definitions/phandle-array
|
||||
items:
|
||||
- items:
|
||||
|
|
@ -82,6 +91,8 @@ properties:
|
|||
- description: Offset of AXI clock controller Low-Power request
|
||||
register
|
||||
- description: Offset of register controlling TX/RX clock delay
|
||||
- description: Optional offset of register controlling TXD delay
|
||||
- description: Optional offset of register controlling RXD delay
|
||||
|
||||
required:
|
||||
- compatible
|
||||
|
|
@ -116,7 +127,7 @@ examples:
|
|||
reset-names = "stmmaceth";
|
||||
rx-internal-delay-ps = <200>;
|
||||
tx-internal-delay-ps = <200>;
|
||||
eswin,hsp-sp-csr = <&hsp_sp_csr 0x100 0x108 0x118>;
|
||||
eswin,hsp-sp-csr = <&hsp_sp_csr 0x100 0x108 0x118 0x114 0x11c>;
|
||||
snps,axi-config = <&stmmac_axi_setup>;
|
||||
snps,aal;
|
||||
snps,fixed-burst;
|
||||
|
|
|
|||
|
|
@ -18,7 +18,9 @@ properties:
|
|||
description: Phandles of rt5650 and rt5514 codecs
|
||||
items:
|
||||
- description: phandle of rt5650 codec
|
||||
maxItems: 1
|
||||
- description: phandle of rt5514 codec
|
||||
maxItems: 1
|
||||
|
||||
mediatek,platform:
|
||||
$ref: /schemas/types.yaml#/definitions/phandle
|
||||
|
|
|
|||
|
|
@ -20,6 +20,9 @@ properties:
|
|||
- fsl,ls1021a-qspi
|
||||
- fsl,ls2080a-qspi
|
||||
- spacemit,k1-qspi
|
||||
- items:
|
||||
- const: spacemit,k3-qspi
|
||||
- const: spacemit,k1-qspi
|
||||
- items:
|
||||
- enum:
|
||||
- fsl,ls1043a-qspi
|
||||
|
|
|
|||
|
|
@ -22,5 +22,5 @@ The following sensors are supported
|
|||
sysfs-Interface
|
||||
---------------
|
||||
|
||||
temp0_input
|
||||
temp1_input
|
||||
- Temperature of external NTC (milli-degree C)
|
||||
|
|
|
|||
|
|
@ -69,6 +69,15 @@ properties:
|
|||
header:
|
||||
description: For C-compatible languages, header which already defines this value.
|
||||
type: string
|
||||
scope:
|
||||
description: |
|
||||
Visibility of this definition. "uapi" (default) renders into
|
||||
the uAPI header, "kernel" renders into the kernel-side
|
||||
generated header, "user" renders into the user-side
|
||||
generated header. When combined with `header:`, the
|
||||
definition is not rendered, and the named header is
|
||||
included only by code matching the scope.
|
||||
enum: [ uapi, kernel, user ]
|
||||
type:
|
||||
enum: [ const, enum, flags ]
|
||||
doc:
|
||||
|
|
|
|||
|
|
@ -83,6 +83,15 @@ properties:
|
|||
header:
|
||||
description: For C-compatible languages, header which already defines this value.
|
||||
type: string
|
||||
scope:
|
||||
description: |
|
||||
Visibility of this definition. "uapi" (default) renders into
|
||||
the uAPI header, "kernel" renders into the kernel-side
|
||||
generated header, "user" renders into the user-side
|
||||
generated header. When combined with `header:`, the
|
||||
definition is not rendered, and the named header is
|
||||
included only by code matching the scope.
|
||||
enum: [ uapi, kernel, user ]
|
||||
type:
|
||||
enum: [ const, enum, flags, struct ] # Trim
|
||||
doc:
|
||||
|
|
|
|||
|
|
@ -55,6 +55,15 @@ properties:
|
|||
header:
|
||||
description: For C-compatible languages, header which already defines this value.
|
||||
type: string
|
||||
scope:
|
||||
description: |
|
||||
Visibility of this definition. "uapi" (default) renders into
|
||||
the uAPI header, "kernel" renders into the kernel-side
|
||||
generated header, "user" renders into the user-side
|
||||
generated header. When combined with `header:`, the
|
||||
definition is not rendered, and the named header is
|
||||
included only by code matching the scope.
|
||||
enum: [ uapi, kernel, user ]
|
||||
type:
|
||||
enum: [ const, enum, flags ]
|
||||
doc:
|
||||
|
|
|
|||
|
|
@ -87,6 +87,15 @@ properties:
|
|||
header:
|
||||
description: For C-compatible languages, header which already defines this value.
|
||||
type: string
|
||||
scope:
|
||||
description: |
|
||||
Visibility of this definition. "uapi" (default) renders into
|
||||
the uAPI header, "kernel" renders into the kernel-side
|
||||
generated header, "user" renders into the user-side
|
||||
generated header. When combined with `header:`, the
|
||||
definition is not rendered, and the named header is
|
||||
included only by code matching the scope.
|
||||
enum: [ uapi, kernel, user ]
|
||||
type:
|
||||
enum: [ const, enum, flags, struct ] # Trim
|
||||
doc:
|
||||
|
|
|
|||
|
|
@ -33,6 +33,11 @@ doc: |
|
|||
@cap-get operation.
|
||||
|
||||
definitions:
|
||||
-
|
||||
type: const
|
||||
name: max-handle-id
|
||||
value: 0x3fffffe
|
||||
scope: kernel
|
||||
-
|
||||
type: enum
|
||||
name: scope
|
||||
|
|
@ -140,6 +145,8 @@ attribute-sets:
|
|||
-
|
||||
name: id
|
||||
type: u32
|
||||
checks:
|
||||
max: max-handle-id
|
||||
doc: |
|
||||
Numeric identifier of a shaper. The id semantic depends on
|
||||
the scope. For @queue scope it's the queue id and for @node
|
||||
|
|
|
|||
249
Documentation/networking/device_drivers/ethernet/3com/3c509.rst
Normal file
249
Documentation/networking/device_drivers/ethernet/3com/3c509.rst
Normal file
|
|
@ -0,0 +1,249 @@
|
|||
.. SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
=============================================================================
|
||||
Linux and the 3Com EtherLink III Series Ethercards (driver v1.18c and higher)
|
||||
=============================================================================
|
||||
|
||||
This file contains the instructions and caveats for v1.18c and higher versions
|
||||
of the 3c509 driver. You should not use the driver without reading this file.
|
||||
|
||||
release 1.0
|
||||
|
||||
28 February 2002
|
||||
|
||||
Current maintainer (corrections to):
|
||||
Maciej W. Rozycki <macro@orcam.me.uk>
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
The following are notes and information on using the 3Com EtherLink III series
|
||||
ethercards in Linux. These cards are commonly known by the most widely-used
|
||||
card's 3Com model number, 3c509. They are all 10mb/s ISA-bus cards and shouldn't
|
||||
be (but sometimes are) confused with the similarly-numbered PCI-bus "3c905"
|
||||
(aka "Vortex" or "Boomerang") series. Kernel support for the 3c509 family is
|
||||
provided by the module 3c509.c, which has code to support all of the following
|
||||
models:
|
||||
|
||||
- 3c509 (original ISA card)
|
||||
- 3c509B (later revision of the ISA card; supports full-duplex)
|
||||
- 3c589 (PCMCIA)
|
||||
- 3c589B (later revision of the 3c589; supports full-duplex)
|
||||
- 3c579 (EISA)
|
||||
|
||||
Large portions of this documentation were heavily borrowed from the guide
|
||||
written the original author of the 3c509 driver, Donald Becker. The master
|
||||
copy of that document, which contains notes on older versions of the driver,
|
||||
currently resides on Scyld web server: http://www.scyld.com/.
|
||||
|
||||
|
||||
Special Driver Features
|
||||
=======================
|
||||
|
||||
Overriding card settings
|
||||
|
||||
The driver allows boot- or load-time overriding of the card's detected IOADDR,
|
||||
IRQ, and transceiver settings, although this capability shouldn't generally be
|
||||
needed except to enable full-duplex mode (see below). An example of the syntax
|
||||
for LILO parameters for doing this::
|
||||
|
||||
ether=10,0x310,3,0x3c509,eth0
|
||||
|
||||
This configures the first found 3c509 card for IRQ 10, base I/O 0x310, and
|
||||
transceiver type 3 (10base2). The flag "0x3c509" must be set to avoid conflicts
|
||||
with other card types when overriding the I/O address. When the driver is
|
||||
loaded as a module, only the IRQ may be overridden. For example,
|
||||
setting two cards to IRQ10 and IRQ11 is done by using the irq module
|
||||
option::
|
||||
|
||||
options 3c509 irq=10,11
|
||||
|
||||
|
||||
Full-duplex mode
|
||||
================
|
||||
|
||||
The v1.18c driver added support for the 3c509B's full-duplex capabilities.
|
||||
In order to enable and successfully use full-duplex mode, three conditions
|
||||
must be met:
|
||||
|
||||
(a) You must have a Etherlink III card model whose hardware supports full-
|
||||
duplex operations. Currently, the only members of the 3c509 family that are
|
||||
positively known to support full-duplex are the 3c509B (ISA bus) and 3c589B
|
||||
(PCMCIA) cards. Cards without the "B" model designation do *not* support
|
||||
full-duplex mode; these include the original 3c509 (no "B"), the original
|
||||
3c589, the 3c529 (MCA bus), and the 3c579 (EISA bus).
|
||||
|
||||
(b) You must be using your card's 10baseT transceiver (i.e., the RJ-45
|
||||
connector), not its AUI (thick-net) or 10base2 (thin-net/coax) interfaces.
|
||||
AUI and 10base2 network cabling is physically incapable of full-duplex
|
||||
operation.
|
||||
|
||||
(c) Most importantly, your 3c509B must be connected to a link partner that is
|
||||
itself full-duplex capable. This is almost certainly one of two things: a full-
|
||||
duplex-capable Ethernet switch (*not* a hub), or a full-duplex-capable NIC on
|
||||
another system that's connected directly to the 3c509B via a crossover cable.
|
||||
|
||||
Full-duplex mode can be enabled using 'ethtool'.
|
||||
|
||||
.. warning::
|
||||
|
||||
Extremely important caution concerning full-duplex mode
|
||||
|
||||
Understand that the 3c509B's hardware's full-duplex support is much more
|
||||
limited than that provide by more modern network interface cards. Although
|
||||
at the physical layer of the network it fully supports full-duplex operation,
|
||||
the card was designed before the current Ethernet auto-negotiation (N-way)
|
||||
spec was written. This means that the 3c509B family ***cannot and will not
|
||||
auto-negotiate a full-duplex connection with its link partner under any
|
||||
circumstances, no matter how it is initialized***. If the full-duplex mode
|
||||
of the 3c509B is enabled, its link partner will very likely need to be
|
||||
independently _forced_ into full-duplex mode as well; otherwise various nasty
|
||||
failures will occur - at the very least, you'll see massive numbers of packet
|
||||
collisions. This is one of very rare circumstances where disabling auto-
|
||||
negotiation and forcing the duplex mode of a network interface card or switch
|
||||
would ever be necessary or desirable.
|
||||
|
||||
|
||||
Available Transceiver Types
|
||||
===========================
|
||||
|
||||
For versions of the driver v1.18c and above, the available transceiver types are:
|
||||
|
||||
== =========================================================================
|
||||
0 transceiver type from EEPROM config (normally 10baseT); force half-duplex
|
||||
1 AUI (thick-net / DB15 connector)
|
||||
2 (undefined)
|
||||
3 10base2 (thin-net == coax / BNC connector)
|
||||
4 10baseT (RJ-45 connector); force half-duplex mode
|
||||
8 transceiver type and duplex mode taken from card's EEPROM config settings
|
||||
12 10baseT (RJ-45 connector); force full-duplex mode
|
||||
== =========================================================================
|
||||
|
||||
Prior to driver version 1.18c, only transceiver codes 0-4 were supported. Note
|
||||
that the new transceiver codes 8 and 12 are the *only* ones that will enable
|
||||
full-duplex mode, no matter what the card's detected EEPROM settings might be.
|
||||
This insured that merely upgrading the driver from an earlier version would
|
||||
never automatically enable full-duplex mode in an existing installation;
|
||||
it must always be explicitly enabled via one of these code in order to be
|
||||
activated.
|
||||
|
||||
The transceiver type can be changed using 'ethtool'.
|
||||
|
||||
|
||||
Interpretation of error messages and common problems
|
||||
----------------------------------------------------
|
||||
|
||||
Error Messages
|
||||
^^^^^^^^^^^^^^
|
||||
|
||||
eth0: Infinite loop in interrupt, status 2011.
|
||||
These are "mostly harmless" message indicating that the driver had too much
|
||||
work during that interrupt cycle. With a status of 0x2011 you are receiving
|
||||
packets faster than they can be removed from the card. This should be rare
|
||||
or impossible in normal operation. Possible causes of this error report are:
|
||||
|
||||
- a "green" mode enabled that slows the processor down when there is no
|
||||
keyboard activity.
|
||||
|
||||
- some other device or device driver hogging the bus or disabling interrupts.
|
||||
Check /proc/interrupts for excessive interrupt counts. The timer tick
|
||||
interrupt should always be incrementing faster than the others.
|
||||
|
||||
No received packets
|
||||
^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
If a 3c509, 3c562 or 3c589 can successfully transmit packets, but never
|
||||
receives packets (as reported by /proc/net/dev or 'ifconfig') you likely
|
||||
have an interrupt line problem. Check /proc/interrupts to verify that the
|
||||
card is actually generating interrupts. If the interrupt count is not
|
||||
increasing you likely have a physical conflict with two devices trying to
|
||||
use the same ISA IRQ line. The common conflict is with a sound card on IRQ10
|
||||
or IRQ5, and the easiest solution is to move the 3c509 to a different
|
||||
interrupt line. If the device is receiving packets but 'ping' doesn't work,
|
||||
you have a routing problem.
|
||||
|
||||
Tx Carrier Errors Reported in /proc/net/dev
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
|
||||
If an EtherLink III appears to transmit packets, but the "Tx carrier errors"
|
||||
field in /proc/net/dev increments as quickly as the Tx packet count, you
|
||||
likely have an unterminated network or the incorrect media transceiver selected.
|
||||
|
||||
3c509B card is not detected on machines with an ISA PnP BIOS.
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
While the updated driver works with most PnP BIOS programs, it does not work
|
||||
with all. This can be fixed by disabling PnP support using the 3Com-supplied
|
||||
setup program.
|
||||
|
||||
3c509 card is not detected on overclocked machines
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
Increase the delay time in id_read_eeprom() from the current value, 500,
|
||||
to an absurdly high value, such as 5000.
|
||||
|
||||
|
||||
Decoding Status and Error Messages
|
||||
----------------------------------
|
||||
|
||||
|
||||
The bits in the main status register are:
|
||||
|
||||
===== ======================================
|
||||
value description
|
||||
===== ======================================
|
||||
0x01 Interrupt latch
|
||||
0x02 Tx overrun, or Rx underrun
|
||||
0x04 Tx complete
|
||||
0x08 Tx FIFO room available
|
||||
0x10 A complete Rx packet has arrived
|
||||
0x20 A Rx packet has started to arrive
|
||||
0x40 The driver has requested an interrupt
|
||||
0x80 Statistics counter nearly full
|
||||
===== ======================================
|
||||
|
||||
The bits in the transmit (Tx) status word are:
|
||||
|
||||
===== ============================================
|
||||
value description
|
||||
===== ============================================
|
||||
0x02 Out-of-window collision.
|
||||
0x04 Status stack overflow (normally impossible).
|
||||
0x08 16 collisions.
|
||||
0x10 Tx underrun (not enough PCI bus bandwidth).
|
||||
0x20 Tx jabber.
|
||||
0x40 Tx interrupt requested.
|
||||
0x80 Status is valid (this should always be set).
|
||||
===== ============================================
|
||||
|
||||
|
||||
When a transmit error occurs the driver produces a status message such as::
|
||||
|
||||
eth0: Transmit error, Tx status register 82
|
||||
|
||||
The two values typically seen here are:
|
||||
|
||||
0x82
|
||||
^^^^
|
||||
|
||||
Out of window collision. This typically occurs when some other Ethernet
|
||||
host is incorrectly set to full duplex on a half duplex network.
|
||||
|
||||
0x88
|
||||
^^^^
|
||||
|
||||
16 collisions. This typically occurs when the network is exceptionally busy
|
||||
or when another host doesn't correctly back off after a collision. If this
|
||||
error is mixed with 0x82 errors it is the result of a host incorrectly set
|
||||
to full duplex (see above).
|
||||
|
||||
Both of these errors are the result of network problems that should be
|
||||
corrected. They do not represent driver malfunction.
|
||||
|
||||
|
||||
Revision history (this file)
|
||||
============================
|
||||
|
||||
28Feb02 v1.0 DR New; major portions based on Becker original 3c509 docs
|
||||
|
||||
|
|
@ -10,6 +10,7 @@ Contents:
|
|||
.. toctree::
|
||||
:maxdepth: 2
|
||||
|
||||
3com/3c509
|
||||
3com/vortex
|
||||
amazon/ena
|
||||
altera/altera_tse
|
||||
|
|
|
|||
|
|
@ -86,6 +86,7 @@ regressions and security problems.
|
|||
debugging/index
|
||||
handling-regressions
|
||||
security-bugs
|
||||
threat-model
|
||||
cve
|
||||
embargoed-hardware-issues
|
||||
|
||||
|
|
|
|||
|
|
@ -66,6 +66,42 @@ In addition, the following information are highly desirable:
|
|||
the issue appear. It is useful to share them, as they can be helpful to
|
||||
keep end users protected during the time it takes them to apply the fix.
|
||||
|
||||
What qualifies as a security bug
|
||||
--------------------------------
|
||||
|
||||
It is important that most bugs are handled publicly so as to involve the widest
|
||||
possible audience and find the best solution. By nature, bugs that are handled
|
||||
in closed discussions between a small set of participants are less likely to
|
||||
produce the best possible fix (e.g., risk of missing valid use cases, limited
|
||||
testing abilities).
|
||||
|
||||
It turns out that the majority of the bugs reported via the security team are
|
||||
just regular bugs that have been improperly qualified as security bugs due to
|
||||
a lack of awareness of the Linux kernel's threat model, as described in
|
||||
Documentation/process/threat-model.rst, and ought to have been sent through
|
||||
the normal channels described in Documentation/admin-guide/reporting-issues.rst
|
||||
instead.
|
||||
|
||||
The security list exists for urgent bugs that grant an attacker a capability
|
||||
they are not supposed to have on a correctly configured production system, and
|
||||
can be easily exploited, representing an imminent threat to many users. Before
|
||||
reporting, consider whether the issue actually crosses a trust boundary on such
|
||||
a system.
|
||||
|
||||
**If you resorted to AI assistance to identify a bug, you must treat it as
|
||||
public**. While you may have valid reasons to believe it is not, the security
|
||||
team's experience shows that bugs discovered this way systematically surface
|
||||
simultaneously across multiple researchers, often on the same day. In this
|
||||
case, do not publicly share a reproducer, as this could cause unintended harm;
|
||||
just mention that one is available and maintainers might ask for it privately
|
||||
if they need it.
|
||||
|
||||
If you are unsure whether an issue qualifies, err on the side of reporting
|
||||
privately: the security team would rather triage a borderline report than miss
|
||||
a real vulnerability. Reporting ordinary bugs to the security list, however,
|
||||
does not make them move faster and consumes triage capacity that other reports
|
||||
need.
|
||||
|
||||
Identifying contacts
|
||||
--------------------
|
||||
|
||||
|
|
@ -74,7 +110,7 @@ affected subsystem's maintainers and Cc: the Linux kernel security team. Do
|
|||
not send it to a public list at this stage, unless you have good reasons to
|
||||
consider the issue as being public or trivial to discover (e.g. result of a
|
||||
widely available automated vulnerability scanning tool that can be repeated by
|
||||
anyone).
|
||||
anyone, or use of AI-based tools).
|
||||
|
||||
If you're sending a report for issues affecting multiple parts in the kernel,
|
||||
even if they're fairly similar issues, please send individual messages (think
|
||||
|
|
@ -131,6 +167,64 @@ the Linux kernel security team only. Your message will be triaged, and you
|
|||
will receive instructions about whom to contact, if needed. Your message may
|
||||
equally be forwarded as-is to the relevant maintainers.
|
||||
|
||||
Responsible use of AI to find bugs
|
||||
----------------------------------
|
||||
|
||||
A significant fraction of bug reports submitted to the security team are
|
||||
actually the result of code reviews assisted by AI tools. While this can be an
|
||||
efficient means to find bugs in rarely explored areas, it causes an overload on
|
||||
maintainers, who are sometimes forced to ignore such reports due to their poor
|
||||
quality or accuracy. As such, reporters must be particularly cautious about a
|
||||
number of points which tend to make these reports needlessly difficult to
|
||||
handle:
|
||||
|
||||
* **Length**: AI-generated reports tend to be excessively long, containing
|
||||
multiple sections and excessive detail. This makes it difficult to spot
|
||||
important information such as affected files, versions, and impact. Please
|
||||
ensure that a clear summary of the problem and all critical details are
|
||||
presented first. Do not require triage engineers to scan multiple pages of
|
||||
text. Configure your tools to produce concise, human-style reports.
|
||||
|
||||
* **Formatting**: Most AI-generated reports are littered with Markdown tags.
|
||||
These decorations complicate the search for important information and do
|
||||
not survive the quoting processes involved in forwarding or replying.
|
||||
Please **always convert your report to plain text** without any formatting
|
||||
decorations before sending it.
|
||||
|
||||
* **Impact Evaluation**: Many AI-generated reports lack an understanding
|
||||
of the kernel's threat model (see Documentation/process/threat-model.rst)
|
||||
and go to great lengths inventing theoretical consequences. This adds
|
||||
noise and complicates triage. Please stick to verifiable facts (e.g.,
|
||||
"this bug permits any user to gain CAP_NET_ADMIN") without enumerating
|
||||
speculative implications. Have your tool read this documentation as
|
||||
part of the evaluation process.
|
||||
|
||||
* **Reproducer**: AI-based tools are often capable of generating reproducers.
|
||||
Please always ensure your tool provides one and **test it thoroughly**. If
|
||||
the reproducer does not work, or if the tool cannot produce one, the
|
||||
validity of the report should be seriously questioned. Note that since the
|
||||
report will be posted to a public list, the reproducer should only be
|
||||
shared upon maintainers' request.
|
||||
|
||||
* **Propose a Fix**: Many AI tools are actually better at writing code than
|
||||
evaluating it. Please ask your tool to propose a fix and **test it** before
|
||||
reporting the problem. If the fix cannot be tested because it relies on
|
||||
rare hardware or almost extinct network protocols, the issue is likely not
|
||||
a security bug. In any case, if a fix is proposed, it must adhere to
|
||||
Documentation/process/submitting-patches.rst and include a 'Fixes:' tag
|
||||
designating the commit that introduced the bug.
|
||||
|
||||
Failure to consider these points exposes your report to the risk of being
|
||||
ignored.
|
||||
|
||||
Use common sense when evaluating the report. If the affected file has not been
|
||||
touched for more than one year and is maintained by a single individual, it is
|
||||
likely that usage has declined and exposed users are virtually non-existent
|
||||
(e.g., drivers for very old hardware, obsolete filesystems). In such cases,
|
||||
there is no need to consume a maintainer's time with an unimportant report. If
|
||||
the issue is clearly trivial and publicly discoverable, you should report it
|
||||
directly to the public mailing lists.
|
||||
|
||||
Sending the report
|
||||
------------------
|
||||
|
||||
|
|
@ -148,7 +242,15 @@ run additional tests. Reports where the reporter does not respond promptly
|
|||
or cannot effectively discuss their findings may be abandoned if the
|
||||
communication does not quickly improve.
|
||||
|
||||
The report must be sent to maintainers, with the security team in ``Cc:``.
|
||||
The report must be sent to maintainers. If there are two or fewer
|
||||
recipients in your message, you must also always Cc: the Linux kernel
|
||||
security team who will ensure the message is delivered to the proper
|
||||
people, and will be able to assist small maintainer teams with processes
|
||||
they may not be familiar with. For larger teams, Cc: the Linux kernel
|
||||
security team for your first few reports or when seeking specific help,
|
||||
such as when resending a message which got no response within a week.
|
||||
Once you have become comfortable with the process for a few reports, it is
|
||||
no longer necessary to Cc: the security list when sending to large teams.
|
||||
The Linux kernel security team can be contacted by email at
|
||||
<security@kernel.org>. This is a private list of security officers
|
||||
who will help verify the bug report and assist developers working on a fix.
|
||||
|
|
|
|||
235
Documentation/process/threat-model.rst
Normal file
235
Documentation/process/threat-model.rst
Normal file
|
|
@ -0,0 +1,235 @@
|
|||
The Linux Kernel threat model
|
||||
=============================
|
||||
|
||||
There are a lot of assumptions regarding what the kernel does and does not
|
||||
protect against. These assumptions tend to cause confusion for bug reports
|
||||
(:doc:`security-related ones <security-bugs>` vs :doc:`non-security ones
|
||||
<../admin-guide/reporting-issues>`), and can complicate security enforcement
|
||||
when the responsibilities for some boundaries is not clear between the kernel,
|
||||
distros, administrators and users.
|
||||
|
||||
This document tries to clarify the responsibilities of the kernel in this
|
||||
domain.
|
||||
|
||||
The kernel's responsibilities
|
||||
-----------------------------
|
||||
|
||||
The kernel abstracts access to local hardware resources and to remote systems
|
||||
in a way that allows multiple local users to get a fair share of the available
|
||||
resources granted to them, and, when the underlying hardware permits, to assign
|
||||
a level of confidentiality to their communications and to the data they are
|
||||
processing or storing.
|
||||
|
||||
The kernel assumes that the underlying hardware behaves according to its
|
||||
specifications. This includes the integrity of the CPU's instruction set, the
|
||||
transparency of the branch prediction unit and the cache units, the consistency
|
||||
of the Memory Management Unit (MMU), the isolation of DMA-capable peripherals
|
||||
(e.g., via IOMMU), state transitions in controllers, ranges of values read from
|
||||
registers, the respect of documented hardware limitations, etc.
|
||||
|
||||
When hardware fails to maintain its specified isolation (e.g., CPU bugs,
|
||||
side-channels, hardware response to unexpected inputs), the kernel will usually
|
||||
attempt to implement reasonable mitigations. These are best-effort measures
|
||||
intended to reduce the attack surface or elevate the cost of an attack within
|
||||
the limits of the hardware's facilities; they do not constitute a
|
||||
kernel-provided safety guarantee.
|
||||
|
||||
Users always perform their activities under the authority of an administrator
|
||||
who is able to grant or deny various types of permissions that may affect how
|
||||
users benefit from available resources, or the level of confidentiality of
|
||||
their activities. Administrators may also delegate all or part of their own
|
||||
permissions to some users, particularly via capabilities but not only. All this
|
||||
is performed via configuration (sysctl, file-system permissions etc).
|
||||
|
||||
The Linux Kernel applies a certain collection of default settings that match
|
||||
its threat model. Distros have their own threat model and will come with their
|
||||
own configuration presets, that the administrator may have to adjust to better
|
||||
suit their expectations (relax or restrict).
|
||||
|
||||
By default, the Linux Kernel guarantees the following protections when running
|
||||
on common processors featuring privilege levels and memory management units:
|
||||
|
||||
* **User-based isolation**: an unprivileged user may restrict access to their
|
||||
own data from other unprivileged users running on the same system. This
|
||||
includes:
|
||||
|
||||
* stored data, via file system permissions
|
||||
* in-memory data (pages are not accessible by default to other users)
|
||||
* process activity (ptrace is not permitted to other users)
|
||||
* inter-process communication (other users may not observe data exchanged via
|
||||
UNIX domain sockets or other IPC mechanisms).
|
||||
* network communications within the same or with other systems
|
||||
|
||||
* **Capability-based protection**:
|
||||
|
||||
* users not having elevated capabilities (including but not limited to
|
||||
CAP_SYS_ADMIN) may not alter the
|
||||
kernel's configuration, memory nor state, change other users' view of the
|
||||
file system layout, grant any user capabilities they do not have, nor
|
||||
affect the system's availability (shutdown, reboot, panic, hang, or making
|
||||
the system unresponsive via unbounded resource exhaustion).
|
||||
* users not having the ``CAP_NET_ADMIN`` capability may not alter the network
|
||||
configuration, intercept nor spoof network communications from other users
|
||||
nor systems.
|
||||
* users not having ``CAP_SYS_PTRACE`` may not observe other users' processes
|
||||
activities.
|
||||
|
||||
When ``CONFIG_USER_NS`` is set, the kernel also permits unprivileged users to
|
||||
create their own user namespace in which they have all capabilities, but with a
|
||||
number of restrictions (they may not perform actions that have impacts on the
|
||||
initial user namespace, such as changing time, loading modules or mounting
|
||||
block devices). Please refer to ``user_namespaces(7)`` for more details, the
|
||||
possibilities of user namespaces are not covered in this document.
|
||||
|
||||
The kernel also offers a lot of troubleshooting and debugging facilities, which
|
||||
can constitute attack vectors when placed in wrong hands. While some of them
|
||||
are designed to be accessible to regular local users with a low risk (e.g.
|
||||
kernel logs via ``/proc/kmsg``), some would expose enough information to
|
||||
represent a risk in most places and the decision to expose them is under the
|
||||
administrator's responsibility (perf events, traces), and others are not
|
||||
designed to be accessed by non-privileged users (e.g. debugfs). Access to these
|
||||
facilities by a user who has been explicitly granted permission by an
|
||||
administrator does not constitute a security breach.
|
||||
|
||||
Bugs that permit to violate the principles above constitute security breaches.
|
||||
However, bugs that permit one violation only once another one was already
|
||||
achieved are only weaknesses. The kernel applies a number of self-protection
|
||||
measures whose purpose is to avoid crossing a security boundary when certain
|
||||
classes of bugs are found, but a failure of these extra protections do not
|
||||
constitute a vulnerability alone.
|
||||
|
||||
What does not constitute a security bug
|
||||
---------------------------------------
|
||||
|
||||
In the Linux kernel's threat model, the following classes of problems are
|
||||
**NOT** considered as Linux Kernel security bugs. However, when it is believed
|
||||
that the kernel could do better, they should be reported, so that they can be
|
||||
reviewed and fixed where reasonably possible, but they will be handled as any
|
||||
regular bug:
|
||||
|
||||
* **Configuration**:
|
||||
|
||||
* outdated kernels and particularly end-of-life branches are out of the scope
|
||||
of the kernel's threat model: administrators are responsible for keeping
|
||||
their system up to date. For a bug to qualify as a security bug, it must be
|
||||
demonstrated that it affects actively maintained versions.
|
||||
|
||||
* build-level: changes to the kernel configuration that are explicitly
|
||||
documented as lowering the security level (e.g. ``CONFIG_NOMMU``), or
|
||||
targeted at developers only.
|
||||
|
||||
* OS-level: changes to command line parameters, sysctls, filesystem
|
||||
permissions, user capabilities, exposure of privileged interfaces, that
|
||||
explicitly increase exposure by either offering non-default access to
|
||||
unprivileged users, or reduce the kernel's ability to enforce some
|
||||
protections or mitigations. Example: write access to procfs or debugfs.
|
||||
|
||||
* issues triggered only when using features intended for development or
|
||||
debugging (e.g., LOCKDEP, KASAN, FAULT_INJECTION): these features are known
|
||||
to introduce overhead and potential instability and are not intended for
|
||||
production use.
|
||||
|
||||
* issues affecting drivers exposed under CONFIG_STAGING, as well as features
|
||||
marked EXPERIMENTAL in the configuration.
|
||||
|
||||
* loading of explicitly insecure/broken/staging modules, and generally any
|
||||
using any subsystem marked as experimental or not intended for production
|
||||
use.
|
||||
|
||||
* running out-of-tree modules or unofficial kernel forks; these should be
|
||||
reported to the relevant vendor.
|
||||
|
||||
* **Excess of initial privileges**:
|
||||
|
||||
* actions performed by a user already possessing the privileges required to
|
||||
perform that action or modify that state (e.g. ``CAP_SYS_ADMIN``,
|
||||
``CAP_NET_ADMIN``, ``CAP_SYS_RAWIO``, ``CAP_SYS_MODULE`` with no further
|
||||
boundary being crossed).
|
||||
|
||||
* actions performed in user namespace that do not bypass the restrictions
|
||||
imposed to the initial user (e.g. ptrace usage, signal delivery, resource
|
||||
usage, access to FS/device/sysctl/memory, network binding, system/network
|
||||
configuration etc).
|
||||
|
||||
* anything performed by the root user in the initial namespace (e.g. kernel
|
||||
oops when writing to a privileged device).
|
||||
|
||||
* **Out of production use**:
|
||||
|
||||
This covers theoretical/probabilistic attacks that rely on laboratory
|
||||
conditions with zero system noise, or those requiring an unrealistic number
|
||||
of attempts (e.g., billions of trials) that would be detected by standard
|
||||
system monitoring long before success, such as:
|
||||
|
||||
* prediction of random numbers that only works in a totally silent
|
||||
environment (such as IP ID, TCP ports or sequence numbers that can only be
|
||||
guessed in a lab).
|
||||
|
||||
* activity observation and information leaks based on probabilistic
|
||||
approaches that are prone to measurement noise and not realistically
|
||||
reproducible on a production system.
|
||||
|
||||
* issues that can only be triggered by heavy attacks (e.g. brute force) whose
|
||||
impact on the system makes it unlikely or impossible to remain undetected
|
||||
before they succeed (e.g. consuming all memory before succeeding).
|
||||
|
||||
* problems seen only under development simulators, emulators, or combinations
|
||||
that do not exist on real systems at the time of reporting (issues
|
||||
involving tens of millions of threads, tens of thousands of CPUs,
|
||||
unrealistic CPU frequencies, RAM sizes or disk capacities, network speeds.
|
||||
|
||||
* issues whose reproduction requires hardware modification or emulation,
|
||||
including fake USB devices that pretend to be another one.
|
||||
|
||||
* as well as issues that can be triggered at a cost that is orders of
|
||||
magnitude higher than the expected benefits (e.g. fully functional keyboard
|
||||
emulator only to retrieve 7 uninitialized bytes in a structure, or
|
||||
brute-force method involving millions of connection attempts to guess a
|
||||
port number).
|
||||
|
||||
* **Hardening failures**:
|
||||
|
||||
* ability to bypass some of the kernel's hardening measures with no
|
||||
demonstrable exploit path (e.g. ASLR bypass, events timing or probing with
|
||||
no demonstrable consequence). These are just weaknesses, not
|
||||
vulnerabilities.
|
||||
|
||||
* missing argument checks and failure to report certain errors with no
|
||||
immediate consequence.
|
||||
|
||||
* **Random information leaks**:
|
||||
|
||||
This concerns information leaks of small data parts that happen to be there
|
||||
and that cannot be chosen by the attacker, or face access restrictions:
|
||||
|
||||
* structure padding reported by syscalls or other interfaces.
|
||||
|
||||
* identifiers, partial data, non-terminated strings reported in error
|
||||
messages.
|
||||
|
||||
* Leaks of kernel memory addresses/pointers do not constitute an immediately
|
||||
exploitable vector and are not security bugs, though they must be reported
|
||||
and fixed.
|
||||
|
||||
* **Crafted file system images**:
|
||||
|
||||
* bugs triggered by mounting a corrupted or maliciously crafted file system
|
||||
image are generally not security bugs, as the kernel assumes the underlying
|
||||
storage media is under the administrator's control, unless the filesystem
|
||||
driver is specifically documented as being hardened against untrusted media.
|
||||
|
||||
* issues that are resolved, mitigated, or detected by running a filesystem
|
||||
consistency check (fsck) on the image prior to mounting.
|
||||
|
||||
* **Physical access**:
|
||||
|
||||
Issues that require physical access to the machine, hardware modification, or
|
||||
the use of specialized hardware (e.g., logic analyzers, DMA-attack tools over
|
||||
PCI-E/Thunderbolt) are out of scope unless the system is explicitly
|
||||
configured with technologies meant to defend against such attacks
|
||||
(e.g. IOMMU).
|
||||
|
||||
* **Functional and performance regressions**:
|
||||
|
||||
Any issue that can be mitigated by setting proper permissions and limits
|
||||
doesn't qualify as a security bug.
|
||||
|
|
@ -40,7 +40,7 @@ There are two drivers in the kernel
|
|||
|
||||
*For systems using SoundWire*: sound/soc/codecs/cs35l56.c and associated files
|
||||
|
||||
*For systems using HDA*: sound/pci/hda/cs35l56_hda.c
|
||||
*For systems using HDA*: sound/hda/codecs/side-codecs/cs35l56_hda.c
|
||||
|
||||
Firmware
|
||||
========
|
||||
|
|
|
|||
|
|
@ -656,8 +656,8 @@ References
|
|||
See [white-paper]_, [api-spec]_, [amd-apm]_, [kvm-forum]_, and [snp-fw-abi]_
|
||||
for more info.
|
||||
|
||||
.. [white-paper] https://developer.amd.com/wordpress/media/2013/12/AMD_Memory_Encryption_Whitepaper_v7-Public.pdf
|
||||
.. [api-spec] https://support.amd.com/TechDocs/55766_SEV-KM_API_Specification.pdf
|
||||
.. [amd-apm] https://support.amd.com/TechDocs/24593.pdf (section 15.34)
|
||||
.. [white-paper] https://docs.amd.com/v/u/en-US/memory-encryption-white-paper
|
||||
.. [api-spec] https://docs.amd.com/v/u/en-US/55766_PUB_3.24_SEV_API
|
||||
.. [amd-apm] https://docs.amd.com/v/u/en-US/24593_3.44_APM_Vol2 (section 15.34)
|
||||
.. [kvm-forum] https://www.linux-kvm.org/images/7/74/02x08A-Thomas_Lendacky-AMDs_Virtualizatoin_Memory_Encryption_Technology.pdf
|
||||
.. [snp-fw-abi] https://www.amd.com/system/files/TechDocs/56860.pdf
|
||||
.. [snp-fw-abi] https://www.amd.com/content/dam/amd/en/documents/developer/56860.pdf
|
||||
|
|
|
|||
46
MAINTAINERS
46
MAINTAINERS
|
|
@ -68,6 +68,12 @@ Maintainers List
|
|||
first. When adding to this list, please keep the entries in
|
||||
alphabetical order.
|
||||
|
||||
3C509 NETWORK DRIVER
|
||||
M: "Maciej W. Rozycki" <macro@orcam.me.uk>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ethernet/3com/3c509.c
|
||||
|
||||
3C59X NETWORK DRIVER
|
||||
M: Steffen Klassert <klassert@kernel.org>
|
||||
L: netdev@vger.kernel.org
|
||||
|
|
@ -2015,7 +2021,7 @@ F: Documentation/hwmon/aquacomputer_d5next.rst
|
|||
F: drivers/hwmon/aquacomputer_d5next.c
|
||||
|
||||
AQUANTIA ETHERNET DRIVER (atlantic)
|
||||
M: Igor Russkikh <irusskikh@marvell.com>
|
||||
M: Sukhdeep Singh <sukhdeeps@marvell.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
W: https://www.marvell.com/
|
||||
|
|
@ -2024,7 +2030,7 @@ F: Documentation/networking/device_drivers/ethernet/aquantia/atlantic.rst
|
|||
F: drivers/net/ethernet/aquantia/atlantic/
|
||||
|
||||
AQUANTIA ETHERNET DRIVER PTP SUBSYSTEM
|
||||
M: Egor Pomozov <epomozov@marvell.com>
|
||||
M: Sukhdeep Singh <sukhdeeps@marvell.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
W: http://www.aquantia.com
|
||||
|
|
@ -2058,7 +2064,7 @@ F: Documentation/devicetree/bindings/display/snps,arcpgu.txt
|
|||
F: drivers/gpu/drm/tiny/arcpgu.c
|
||||
|
||||
ARCNET NETWORK LAYER
|
||||
M: Michael Grzeschik <m.grzeschik@pengutronix.de>
|
||||
M: Michael Grzeschik <mgr@kernel.org>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/arcnet/
|
||||
|
|
@ -3361,7 +3367,9 @@ F: drivers/irqchip/irq-rda-intc.c
|
|||
F: drivers/tty/serial/rda-uart.c
|
||||
|
||||
ARM/REALTEK ARCHITECTURE
|
||||
M: Andreas Färber <afaerber@suse.de>
|
||||
M: James Tai <james.tai@realtek.com>
|
||||
M: Yu-Chun Lin <eleanor.lin@realtek.com>
|
||||
R: Andreas Färber <afaerber@suse.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
L: linux-realtek-soc@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
|
@ -3369,6 +3377,7 @@ F: Documentation/devicetree/bindings/arm/realtek.yaml
|
|||
F: arch/arm/boot/dts/realtek/
|
||||
F: arch/arm/mach-realtek/
|
||||
F: arch/arm64/boot/dts/realtek/
|
||||
F: drivers/pinctrl/realtek/
|
||||
|
||||
ARM/RISC-V/RENESAS ARCHITECTURE
|
||||
M: Geert Uytterhoeven <geert+renesas@glider.be>
|
||||
|
|
@ -4181,8 +4190,8 @@ F: include/uapi/linux/sonet.h
|
|||
F: net/atm/
|
||||
|
||||
ATMEL MACB ETHERNET DRIVER
|
||||
M: Nicolas Ferre <nicolas.ferre@microchip.com>
|
||||
M: Claudiu Beznea <claudiu.beznea@tuxon.dev>
|
||||
M: Théo Lebrun <theo.lebrun@bootlin.com>
|
||||
R: Conor Dooley <conor.dooley@microchip.com>
|
||||
S: Maintained
|
||||
F: drivers/net/ethernet/cadence/
|
||||
|
||||
|
|
@ -12783,7 +12792,6 @@ M: Cezary Rojewski <cezary.rojewski@intel.com>
|
|||
M: Liam Girdwood <liam.r.girdwood@linux.intel.com>
|
||||
M: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
|
||||
M: Bard Liao <yung-chuan.liao@linux.intel.com>
|
||||
M: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
|
||||
M: Kai Vehmanen <kai.vehmanen@linux.intel.com>
|
||||
R: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
|
||||
L: linux-sound@vger.kernel.org
|
||||
|
|
@ -13864,6 +13872,7 @@ M: Pratyush Yadav <pratyush@kernel.org>
|
|||
R: Dave Young <ruirui.yang@linux.dev>
|
||||
L: kexec@lists.infradead.org
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux.git
|
||||
F: Documentation/admin-guide/kdump/
|
||||
F: fs/proc/vmcore.c
|
||||
F: include/linux/crash_core.h
|
||||
|
|
@ -14056,6 +14065,7 @@ KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64)
|
|||
M: Marc Zyngier <maz@kernel.org>
|
||||
M: Oliver Upton <oupton@kernel.org>
|
||||
R: Joey Gouly <joey.gouly@arm.com>
|
||||
R: Steffen Eiden <seiden@linux.ibm.com>
|
||||
R: Suzuki K Poulose <suzuki.poulose@arm.com>
|
||||
R: Zenghui Yu <yuzenghui@huawei.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
|
|
@ -14180,6 +14190,7 @@ M: Pasha Tatashin <pasha.tatashin@soleen.com>
|
|||
M: Pratyush Yadav <pratyush@kernel.org>
|
||||
L: kexec@lists.infradead.org
|
||||
W: http://kernel.org/pub/linux/utils/kernel/kexec/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux.git
|
||||
F: include/linux/kexec.h
|
||||
F: include/uapi/linux/kexec.h
|
||||
F: kernel/kexec*
|
||||
|
|
@ -14896,6 +14907,7 @@ LIVE UPDATE
|
|||
M: Pasha Tatashin <pasha.tatashin@soleen.com>
|
||||
M: Mike Rapoport <rppt@kernel.org>
|
||||
M: Pratyush Yadav <pratyush@kernel.org>
|
||||
L: kexec@lists.infradead.org
|
||||
L: linux-kernel@vger.kernel.org
|
||||
S: Maintained
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux.git
|
||||
|
|
@ -18626,6 +18638,7 @@ F: tools/testing/selftests/net/
|
|||
X: Documentation/networking/mac80211-injection.rst
|
||||
X: Documentation/networking/mac80211_hwsim/
|
||||
X: Documentation/networking/regulatory.rst
|
||||
X: include/net/bluetooth/
|
||||
X: include/net/cfg80211.h
|
||||
X: include/net/ieee80211_radiotap.h
|
||||
X: include/net/iw_handler.h
|
||||
|
|
@ -18935,7 +18948,8 @@ F: drivers/hid/hid-nintendo*
|
|||
|
||||
NIOS2 ARCHITECTURE
|
||||
M: Dinh Nguyen <dinguyen@kernel.org>
|
||||
S: Maintained
|
||||
M: Simon Schuster <schuster.simon@siemens-energy.com>
|
||||
S: Supported
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
|
||||
F: arch/nios2/
|
||||
|
||||
|
|
@ -19449,7 +19463,6 @@ F: include/misc/ocxl*
|
|||
F: include/uapi/misc/ocxl.h
|
||||
|
||||
OMAP AUDIO SUPPORT
|
||||
M: Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
M: Jarkko Nikula <jarkko.nikula@bitmer.com>
|
||||
L: linux-sound@vger.kernel.org
|
||||
L: linux-omap@vger.kernel.org
|
||||
|
|
@ -20731,15 +20744,13 @@ F: Documentation/devicetree/bindings/pci/intel,keembay-pcie*
|
|||
F: drivers/pci/controller/dwc/pcie-keembay.c
|
||||
|
||||
PCIE DRIVER FOR INTEL LGM GW SOC
|
||||
M: Chuanhua Lei <lchuanhua@maxlinear.com>
|
||||
L: linux-pci@vger.kernel.org
|
||||
S: Maintained
|
||||
S: Orphan
|
||||
F: Documentation/devicetree/bindings/pci/intel-gw-pcie.yaml
|
||||
F: drivers/pci/controller/dwc/pcie-intel-gw.c
|
||||
|
||||
PCIE DRIVER FOR MEDIATEK
|
||||
M: Ryder Lee <ryder.lee@mediatek.com>
|
||||
M: Jianjun Wang <jianjun.wang@mediatek.com>
|
||||
L: linux-pci@vger.kernel.org
|
||||
L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Supported
|
||||
|
|
@ -22945,7 +22956,7 @@ N: riscv
|
|||
K: riscv
|
||||
|
||||
RISC-V IOMMU
|
||||
M: Tomasz Jeznach <tjeznach@rivosinc.com>
|
||||
M: Tomasz Jeznach <tomasz.jeznach@linux.dev>
|
||||
L: iommu@lists.linux.dev
|
||||
L: linux-riscv@lists.infradead.org
|
||||
S: Maintained
|
||||
|
|
@ -25059,7 +25070,6 @@ SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS
|
|||
M: Liam Girdwood <lgirdwood@gmail.com>
|
||||
M: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
|
||||
M: Bard Liao <yung-chuan.liao@linux.intel.com>
|
||||
M: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
|
||||
M: Daniel Baluta <daniel.baluta@nxp.com>
|
||||
R: Kai Vehmanen <kai.vehmanen@linux.intel.com>
|
||||
R: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
|
||||
|
|
@ -26352,7 +26362,7 @@ F: arch/xtensa/
|
|||
F: drivers/irqchip/irq-xtensa-*
|
||||
|
||||
TEXAS INSTRUMENTS ASoC DRIVERS
|
||||
M: Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
M: Sen Wang <sen@ti.com>
|
||||
L: linux-sound@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/sound/davinci-mcasp-audio.yaml
|
||||
|
|
@ -26854,12 +26864,6 @@ S: Maintained
|
|||
F: Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
|
||||
F: drivers/iio/adc/ti-tsc2046.c
|
||||
|
||||
TI TWL4030 SERIES SOC CODEC DRIVER
|
||||
M: Peter Ujfalusi <peter.ujfalusi@gmail.com>
|
||||
L: linux-sound@vger.kernel.org
|
||||
S: Maintained
|
||||
F: sound/soc/codecs/twl4030*
|
||||
|
||||
TI VPE/CAL DRIVERS
|
||||
M: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
|
||||
L: linux-media@vger.kernel.org
|
||||
|
|
|
|||
2
Makefile
2
Makefile
|
|
@ -2,7 +2,7 @@
|
|||
VERSION = 7
|
||||
PATCHLEVEL = 1
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc2
|
||||
EXTRAVERSION = -rc5
|
||||
NAME = Baby Opossum Posse
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
|
|
|||
|
|
@ -5,4 +5,5 @@ generic-y += agp.h
|
|||
generic-y += asm-offsets.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -5,5 +5,6 @@ generic-y += extable.h
|
|||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += user.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -34,9 +34,6 @@ flash@18000000 {
|
|||
clocks = <&mstp9_clks R7S72100_CLK_SPIBSC0>;
|
||||
power-domains = <&cpg_clocks>;
|
||||
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
partitions {
|
||||
compatible = "fixed-partitions";
|
||||
#address-cells = <1>;
|
||||
|
|
|
|||
|
|
@ -36,8 +36,6 @@ flash@18000000 {
|
|||
power-domains = <&cpg_clocks>;
|
||||
bank-width = <4>;
|
||||
device-width = <1>;
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
partitions {
|
||||
compatible = "fixed-partitions";
|
||||
|
|
|
|||
|
|
@ -37,7 +37,7 @@ b_clk: b {
|
|||
clock-div = <3>;
|
||||
};
|
||||
|
||||
bsc: bus {
|
||||
bsc: bus@0 {
|
||||
compatible = "simple-bus";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
|
|
|||
|
|
@ -40,7 +40,7 @@ aliases {
|
|||
spi2 = &hspi2;
|
||||
};
|
||||
|
||||
lbsc: bus {
|
||||
lbsc: bus@0 {
|
||||
compatible = "simple-bus";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
|
|
|||
|
|
@ -704,7 +704,7 @@ R8A7779_CLK_MMC1 R8A7779_CLK_MMC0
|
|||
};
|
||||
};
|
||||
|
||||
lbsc: bus {
|
||||
lbsc: bus@0 {
|
||||
compatible = "simple-bus";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
|
|
|||
|
|
@ -86,7 +86,7 @@ extal_clk: extal {
|
|||
bootph-all;
|
||||
};
|
||||
|
||||
lbsc: bus {
|
||||
lbsc: bus@0 {
|
||||
compatible = "simple-bus";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@ generic-y += early_ioremap.h
|
|||
generic-y += extable.h
|
||||
generic-y += flat.h
|
||||
generic-y += parport.h
|
||||
generic-y += ring_buffer.h
|
||||
|
||||
generated-y += mach-types.h
|
||||
generated-y += unistd-nr.h
|
||||
|
|
|
|||
|
|
@ -86,14 +86,6 @@ static u64 notrace intcp_read_sched_clock(void)
|
|||
return val;
|
||||
}
|
||||
|
||||
static void __init intcp_init_early(void)
|
||||
{
|
||||
cm_map = syscon_regmap_lookup_by_compatible("arm,core-module-integrator");
|
||||
if (IS_ERR(cm_map))
|
||||
return;
|
||||
sched_clock_register(intcp_read_sched_clock, 32, 24000000);
|
||||
}
|
||||
|
||||
static void __init intcp_init_irq_of(void)
|
||||
{
|
||||
cm_init();
|
||||
|
|
@ -119,6 +111,10 @@ static void __init intcp_init_of(void)
|
|||
{
|
||||
struct device_node *cpcon;
|
||||
|
||||
cm_map = syscon_regmap_lookup_by_compatible("arm,core-module-integrator");
|
||||
if (!IS_ERR(cm_map))
|
||||
sched_clock_register(intcp_read_sched_clock, 32, 24000000);
|
||||
|
||||
cpcon = of_find_matching_node(NULL, intcp_syscon_match);
|
||||
if (!cpcon)
|
||||
return;
|
||||
|
|
@ -138,7 +134,6 @@ static const char * intcp_dt_board_compat[] = {
|
|||
DT_MACHINE_START(INTEGRATOR_CP_DT, "ARM Integrator/CP (Device Tree)")
|
||||
.reserve = integrator_reserve,
|
||||
.map_io = intcp_map_io,
|
||||
.init_early = intcp_init_early,
|
||||
.init_irq = intcp_init_irq_of,
|
||||
.init_machine = intcp_init_of,
|
||||
.dt_compat = intcp_dt_board_compat,
|
||||
|
|
|
|||
|
|
@ -27,7 +27,12 @@ &lvds1 {
|
|||
status = "okay";
|
||||
|
||||
ports {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
port@1 {
|
||||
reg = <1>;
|
||||
|
||||
lvds1_out: endpoint {
|
||||
remote-endpoint = <&panel_in>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -699,7 +699,7 @@ scif0: serial@c0700000 {
|
|||
"renesas,rcar-gen5-scif", "renesas,scif";
|
||||
reg = <0 0xc0700000 0 0x40>;
|
||||
interrupts = <GIC_ESPI 10 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd16>, <&scif_clk>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd4>, <&scif_clk>;
|
||||
clock-names = "fck", "brg_int", "scif_clk";
|
||||
status = "disabled";
|
||||
};
|
||||
|
|
@ -709,7 +709,7 @@ scif1: serial@c0704000 {
|
|||
"renesas,rcar-gen5-scif", "renesas,scif";
|
||||
reg = <0 0xc0704000 0 0x40>;
|
||||
interrupts = <GIC_ESPI 11 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd16>, <&scif_clk>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd4>, <&scif_clk>;
|
||||
clock-names = "fck", "brg_int", "scif_clk";
|
||||
status = "disabled";
|
||||
};
|
||||
|
|
@ -719,7 +719,7 @@ scif3: serial@c0708000 {
|
|||
"renesas,rcar-gen5-scif", "renesas,scif";
|
||||
reg = <0 0xc0708000 0 0x40>;
|
||||
interrupts = <GIC_ESPI 12 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd16>, <&scif_clk>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd4>, <&scif_clk>;
|
||||
clock-names = "fck", "brg_int", "scif_clk";
|
||||
status = "disabled";
|
||||
};
|
||||
|
|
@ -729,7 +729,7 @@ scif4: serial@c070c000 {
|
|||
"renesas,rcar-gen5-scif", "renesas,scif";
|
||||
reg = <0 0xc070c000 0 0x40>;
|
||||
interrupts = <GIC_ESPI 13 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd16>, <&scif_clk>;
|
||||
clocks = <&dummy_clk_sgasyncd16>, <&dummy_clk_sgasyncd4>, <&scif_clk>;
|
||||
clock-names = "fck", "brg_int", "scif_clk";
|
||||
status = "disabled";
|
||||
};
|
||||
|
|
|
|||
|
|
@ -1327,6 +1327,7 @@ usb20phyrst: usb20phy-reset@15830000 {
|
|||
resets = <&cpg 0xaf>;
|
||||
power-domains = <&cpg>;
|
||||
#reset-cells = <0>;
|
||||
#mux-state-cells = <1>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -1345,6 +1345,7 @@ usb20phyrst: usb20phy-reset@15830000 {
|
|||
resets = <&cpg 0xaf>;
|
||||
power-domains = <&cpg>;
|
||||
#reset-cells = <0>;
|
||||
#mux-state-cells = <1>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
@ -1355,6 +1356,7 @@ usb21phyrst: usb21phy-reset@15840000 {
|
|||
resets = <&cpg 0xaf>;
|
||||
power-domains = <&cpg>;
|
||||
#reset-cells = <0>;
|
||||
#mux-state-cells = <1>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -46,7 +46,12 @@ &csi2 {
|
|||
status = "okay";
|
||||
|
||||
ports {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
port@0 {
|
||||
reg = <0>;
|
||||
|
||||
csi2_in: endpoint {
|
||||
clock-lanes = <0>;
|
||||
data-lanes = <1 2>;
|
||||
|
|
|
|||
|
|
@ -26,7 +26,12 @@ &du {
|
|||
status = "okay";
|
||||
|
||||
ports {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
port@0 {
|
||||
reg = <0>;
|
||||
|
||||
du_out_rgb: endpoint {
|
||||
remote-endpoint = <&adv7513_in>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -27,7 +27,12 @@ &lvds0 {
|
|||
status = "okay";
|
||||
|
||||
ports {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
port@1 {
|
||||
reg = <1>;
|
||||
|
||||
lvds0_out: endpoint {
|
||||
remote-endpoint = <&panel_in>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -409,7 +409,7 @@ __AARCH64_INSN_FUNCS(cbz, 0x7F000000, 0x34000000)
|
|||
__AARCH64_INSN_FUNCS(cbnz, 0x7F000000, 0x35000000)
|
||||
__AARCH64_INSN_FUNCS(tbz, 0x7F000000, 0x36000000)
|
||||
__AARCH64_INSN_FUNCS(tbnz, 0x7F000000, 0x37000000)
|
||||
__AARCH64_INSN_FUNCS(bcond, 0xFF000010, 0x54000000)
|
||||
__AARCH64_INSN_FUNCS(bcond, 0xFF000000, 0x54000000)
|
||||
__AARCH64_INSN_FUNCS(svc, 0xFFE0001F, 0xD4000001)
|
||||
__AARCH64_INSN_FUNCS(hvc, 0xFFE0001F, 0xD4000002)
|
||||
__AARCH64_INSN_FUNCS(smc, 0xFFE0001F, 0xD4000003)
|
||||
|
|
|
|||
|
|
@ -23,6 +23,7 @@ static inline u64 tcr_el2_ps_to_tcr_el1_ips(u64 tcr_el2)
|
|||
static inline u64 translate_tcr_el2_to_tcr_el1(u64 tcr)
|
||||
{
|
||||
return TCR_EPD1_MASK | /* disable TTBR1_EL1 */
|
||||
((tcr & TCR_EL2_DS) ? TCR_DS : 0) |
|
||||
((tcr & TCR_EL2_TBI) ? TCR_TBI0 : 0) |
|
||||
tcr_el2_ps_to_tcr_el1_ips(tcr) |
|
||||
(tcr & TCR_EL2_TG0_MASK) |
|
||||
|
|
|
|||
|
|
@ -33,7 +33,7 @@ struct folio *vma_alloc_zeroed_movable_folio(struct vm_area_struct *vma,
|
|||
unsigned long vaddr);
|
||||
#define vma_alloc_zeroed_movable_folio vma_alloc_zeroed_movable_folio
|
||||
|
||||
bool tag_clear_highpages(struct page *to, int numpages);
|
||||
bool tag_clear_highpages(struct page *to, int numpages, bool clear_pages);
|
||||
#define __HAVE_ARCH_TAG_CLEAR_HIGHPAGES
|
||||
|
||||
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
|
||||
|
|
|
|||
10
arch/arm64/include/asm/ring_buffer.h
Normal file
10
arch/arm64/include/asm/ring_buffer.h
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
#ifndef _ASM_ARM64_RING_BUFFER_H
|
||||
#define _ASM_ARM64_RING_BUFFER_H
|
||||
|
||||
#include <asm/cacheflush.h>
|
||||
|
||||
/* Flush D-cache on persistent ring buffer */
|
||||
#define arch_ring_buffer_flush_range(start, end) dcache_clean_pop(start, end)
|
||||
|
||||
#endif /* _ASM_ARM64_RING_BUFFER_H */
|
||||
|
|
@ -844,7 +844,7 @@
|
|||
#define INIT_SCTLR_EL2_MMU_ON \
|
||||
(SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | SCTLR_ELx_I | \
|
||||
SCTLR_ELx_IESB | SCTLR_ELx_WXN | ENDIAN_SET_EL2 | \
|
||||
SCTLR_ELx_ITFSB | SCTLR_EL2_RES1)
|
||||
SCTLR_ELx_ITFSB | SCTLR_ELx_EIS | SCTLR_ELx_EOS | SCTLR_EL2_RES1)
|
||||
|
||||
#define INIT_SCTLR_EL2_MMU_OFF \
|
||||
(SCTLR_EL2_RES1 | ENDIAN_SET_EL2)
|
||||
|
|
|
|||
|
|
@ -53,7 +53,8 @@ static inline int tlb_get_level(struct mmu_gather *tlb)
|
|||
static inline void tlb_flush(struct mmu_gather *tlb)
|
||||
{
|
||||
struct vm_area_struct vma = TLB_FLUSH_VMA(tlb->mm, 0);
|
||||
tlbf_t flags = tlb->freed_tables ? TLBF_NONE : TLBF_NOWALKCACHE;
|
||||
tlbf_t flags = (tlb->freed_tables || tlb->unshared_tables) ?
|
||||
TLBF_NONE : TLBF_NOWALKCACHE;
|
||||
unsigned long stride = tlb_get_unmap_size(tlb);
|
||||
int tlb_level = tlb_get_level(tlb);
|
||||
|
||||
|
|
|
|||
|
|
@ -62,6 +62,13 @@ static void noinstr arm64_exit_to_kernel_mode(struct pt_regs *regs,
|
|||
irqentry_exit_to_kernel_mode_after_preempt(regs, state);
|
||||
}
|
||||
|
||||
static __always_inline void arm64_syscall_enter_from_user_mode(struct pt_regs *regs)
|
||||
{
|
||||
enter_from_user_mode(regs);
|
||||
mte_disable_tco_entry(current);
|
||||
sme_enter_from_user_mode();
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle IRQ/context state management when entering from user mode.
|
||||
* Before this function is called it is not safe to call regular kernel code,
|
||||
|
|
@ -70,20 +77,30 @@ static void noinstr arm64_exit_to_kernel_mode(struct pt_regs *regs,
|
|||
static __always_inline void arm64_enter_from_user_mode(struct pt_regs *regs)
|
||||
{
|
||||
enter_from_user_mode(regs);
|
||||
rseq_note_user_irq_entry();
|
||||
mte_disable_tco_entry(current);
|
||||
sme_enter_from_user_mode();
|
||||
}
|
||||
|
||||
static __always_inline void arm64_syscall_exit_to_user_mode(struct pt_regs *regs)
|
||||
{
|
||||
local_irq_disable();
|
||||
syscall_exit_to_user_mode_prepare(regs);
|
||||
local_daif_mask();
|
||||
sme_exit_to_user_mode();
|
||||
mte_check_tfsr_exit();
|
||||
exit_to_user_mode();
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle IRQ/context state management when exiting to user mode.
|
||||
* After this function returns it is not safe to call regular kernel code,
|
||||
* instrumentable code, or any code which may trigger an exception.
|
||||
*/
|
||||
|
||||
static __always_inline void arm64_exit_to_user_mode(struct pt_regs *regs)
|
||||
{
|
||||
local_irq_disable();
|
||||
exit_to_user_mode_prepare_legacy(regs);
|
||||
irqentry_exit_to_user_mode_prepare(regs);
|
||||
local_daif_mask();
|
||||
sme_exit_to_user_mode();
|
||||
mte_check_tfsr_exit();
|
||||
|
|
@ -92,7 +109,7 @@ static __always_inline void arm64_exit_to_user_mode(struct pt_regs *regs)
|
|||
|
||||
asmlinkage void noinstr asm_exit_to_user_mode(struct pt_regs *regs)
|
||||
{
|
||||
arm64_exit_to_user_mode(regs);
|
||||
arm64_syscall_exit_to_user_mode(regs);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -716,12 +733,12 @@ static void noinstr el0_brk64(struct pt_regs *regs, unsigned long esr)
|
|||
|
||||
static void noinstr el0_svc(struct pt_regs *regs)
|
||||
{
|
||||
arm64_enter_from_user_mode(regs);
|
||||
arm64_syscall_enter_from_user_mode(regs);
|
||||
cortex_a76_erratum_1463225_svc_handler();
|
||||
fpsimd_syscall_enter();
|
||||
local_daif_restore(DAIF_PROCCTX);
|
||||
do_el0_svc(regs);
|
||||
arm64_exit_to_user_mode(regs);
|
||||
arm64_syscall_exit_to_user_mode(regs);
|
||||
fpsimd_syscall_exit();
|
||||
}
|
||||
|
||||
|
|
@ -868,11 +885,11 @@ static void noinstr el0_cp15(struct pt_regs *regs, unsigned long esr)
|
|||
|
||||
static void noinstr el0_svc_compat(struct pt_regs *regs)
|
||||
{
|
||||
arm64_enter_from_user_mode(regs);
|
||||
arm64_syscall_enter_from_user_mode(regs);
|
||||
cortex_a76_erratum_1463225_svc_handler();
|
||||
local_daif_restore(DAIF_PROCCTX);
|
||||
do_el0_svc_compat(regs);
|
||||
arm64_exit_to_user_mode(regs);
|
||||
arm64_syscall_exit_to_user_mode(regs);
|
||||
}
|
||||
|
||||
static void noinstr el0_bkpt32(struct pt_regs *regs, unsigned long esr)
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
* Author: Christoffer Dall <c.dall@virtualopensystems.com>
|
||||
*/
|
||||
|
||||
#include <linux/arm-smccc.h>
|
||||
#include <linux/bug.h>
|
||||
#include <linux/cpu_pm.h>
|
||||
#include <linux/errno.h>
|
||||
|
|
@ -554,8 +555,10 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
|
|||
kvm_destroy_mpidr_data(vcpu->kvm);
|
||||
|
||||
err = kvm_vgic_vcpu_init(vcpu);
|
||||
if (err)
|
||||
if (err) {
|
||||
kvm_vgic_vcpu_destroy(vcpu);
|
||||
return err;
|
||||
}
|
||||
|
||||
err = kvm_share_hyp(vcpu, vcpu + 1);
|
||||
if (err)
|
||||
|
|
@ -2638,6 +2641,22 @@ static int init_pkvm_host_sve_state(void)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int pkvm_check_sme_dvmsync_fw_call(void)
|
||||
{
|
||||
struct arm_smccc_res res;
|
||||
|
||||
if (!cpus_have_final_cap(ARM64_WORKAROUND_4193714))
|
||||
return 0;
|
||||
|
||||
arm_smccc_1_1_smc(ARM_SMCCC_CPU_WORKAROUND_4193714, &res);
|
||||
if (res.a0) {
|
||||
kvm_err("pKVM requires firmware support for C1-Pro erratum 4193714\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Finalizes the initialization of hyp mode, once everything else is initialized
|
||||
* and the initialziation process cannot fail.
|
||||
|
|
@ -2838,6 +2857,10 @@ static int __init init_hyp_mode(void)
|
|||
if (err)
|
||||
goto out_err;
|
||||
|
||||
err = pkvm_check_sme_dvmsync_fw_call();
|
||||
if (err)
|
||||
goto out_err;
|
||||
|
||||
err = kvm_hyp_init_protection(hyp_va_bits);
|
||||
if (err) {
|
||||
kvm_err("Failed to init hyp memory protection\n");
|
||||
|
|
|
|||
|
|
@ -245,7 +245,7 @@ static inline void __activate_traps_ich_hfgxtr(struct kvm_vcpu *vcpu)
|
|||
__activate_fgt(hctxt, vcpu, ICH_HFGITR_EL2);
|
||||
}
|
||||
|
||||
#define __deactivate_fgt(htcxt, vcpu, reg) \
|
||||
#define __deactivate_fgt(hctxt, vcpu, reg) \
|
||||
do { \
|
||||
write_sysreg_s(ctxt_sys_reg(hctxt, reg), \
|
||||
SYS_ ## reg); \
|
||||
|
|
|
|||
|
|
@ -35,6 +35,9 @@ void trace_clock_update(u32 mult, u32 shift, u64 epoch_ns, u64 epoch_cyc)
|
|||
struct clock_data *clock = &trace_clock_data;
|
||||
u64 bank = clock->cur ^ 1;
|
||||
|
||||
if (!mult || shift >= 64)
|
||||
return;
|
||||
|
||||
clock->data[bank].mult = mult;
|
||||
clock->data[bank].shift = shift;
|
||||
clock->data[bank].epoch_ns = epoch_ns;
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@
|
|||
*/
|
||||
|
||||
#include <linux/kvm_host.h>
|
||||
|
||||
#include <asm/kvm_emulate.h>
|
||||
#include <asm/kvm_hyp.h>
|
||||
#include <asm/kvm_mmu.h>
|
||||
|
|
@ -14,6 +15,7 @@
|
|||
|
||||
#include <hyp/fault.h>
|
||||
|
||||
#include <nvhe/arm-smccc.h>
|
||||
#include <nvhe/gfp.h>
|
||||
#include <nvhe/memory.h>
|
||||
#include <nvhe/mem_protect.h>
|
||||
|
|
@ -29,6 +31,19 @@ static struct hyp_pool host_s2_pool;
|
|||
static DEFINE_PER_CPU(struct pkvm_hyp_vm *, __current_vm);
|
||||
#define current_vm (*this_cpu_ptr(&__current_vm))
|
||||
|
||||
static void pkvm_sme_dvmsync_fw_call(void)
|
||||
{
|
||||
if (alternative_has_cap_unlikely(ARM64_WORKAROUND_4193714)) {
|
||||
struct arm_smccc_res res;
|
||||
|
||||
/*
|
||||
* Ignore the return value. Probing for the workaround
|
||||
* availability took place in init_hyp_mode().
|
||||
*/
|
||||
hyp_smccc_1_1_smc(ARM_SMCCC_CPU_WORKAROUND_4193714, &res);
|
||||
}
|
||||
}
|
||||
|
||||
static void guest_lock_component(struct pkvm_hyp_vm *vm)
|
||||
{
|
||||
hyp_spin_lock(&vm->lock);
|
||||
|
|
@ -574,8 +589,14 @@ static int host_stage2_set_owner_metadata_locked(phys_addr_t addr, u64 size,
|
|||
ret = host_stage2_try(kvm_pgtable_stage2_annotate, &host_mmu.pgt,
|
||||
addr, size, &host_s2_pool,
|
||||
KVM_HOST_INVALID_PTE_TYPE_DONATION, annotation);
|
||||
if (!ret)
|
||||
if (!ret) {
|
||||
/*
|
||||
* After stage2 maintenance has happened, but before the page
|
||||
* owner has changed.
|
||||
*/
|
||||
pkvm_sme_dvmsync_fw_call();
|
||||
__host_update_page_state(addr, size, PKVM_NOPAGE);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
@ -1369,6 +1390,22 @@ int __pkvm_host_reclaim_page_guest(u64 gfn, struct pkvm_hyp_vm *vm)
|
|||
return ret && ret != -EHWPOISON ? ret : 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* share/donate install at most one stage-2 leaf (PAGE_SIZE, or one
|
||||
* KVM_PGTABLE_LAST_LEVEL - 1 block for share). kvm_mmu_cache_min_pages()
|
||||
* bounds the worst-case allocation: exact for the PAGE_SIZE leaf,
|
||||
* conservative by one for the block.
|
||||
*/
|
||||
static int __guest_check_pgtable_memcache(struct pkvm_hyp_vcpu *vcpu)
|
||||
{
|
||||
struct pkvm_hyp_vm *vm = pkvm_hyp_vcpu_to_hyp_vm(vcpu);
|
||||
|
||||
if (vcpu->vcpu.arch.pkvm_memcache.nr_pages < kvm_mmu_cache_min_pages(vm->pgt.mmu))
|
||||
return -ENOMEM;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct pkvm_hyp_vcpu *vcpu)
|
||||
{
|
||||
struct pkvm_hyp_vm *vm = pkvm_hyp_vcpu_to_hyp_vm(vcpu);
|
||||
|
|
@ -1388,6 +1425,10 @@ int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct pkvm_hyp_vcpu *vcpu)
|
|||
if (ret)
|
||||
goto unlock;
|
||||
|
||||
ret = __guest_check_pgtable_memcache(vcpu);
|
||||
if (ret)
|
||||
goto unlock;
|
||||
|
||||
meta = host_stage2_encode_gfn_meta(vm, gfn);
|
||||
WARN_ON(host_stage2_set_owner_metadata_locked(phys, PAGE_SIZE,
|
||||
PKVM_ID_GUEST, meta));
|
||||
|
|
@ -1453,6 +1494,10 @@ int __pkvm_host_share_guest(u64 pfn, u64 gfn, u64 nr_pages, struct pkvm_hyp_vcpu
|
|||
}
|
||||
}
|
||||
|
||||
ret = __guest_check_pgtable_memcache(vcpu);
|
||||
if (ret)
|
||||
goto unlock;
|
||||
|
||||
for_each_hyp_page(page, phys, size) {
|
||||
set_host_state(page, PKVM_PAGE_SHARED_OWNED);
|
||||
page->host_share_guest_count++;
|
||||
|
|
|
|||
|
|
@ -752,16 +752,30 @@ static struct pkvm_hyp_vcpu selftest_vcpu = {
|
|||
struct pkvm_hyp_vcpu *init_selftest_vm(void *virt)
|
||||
{
|
||||
struct hyp_page *p = hyp_virt_to_page(virt);
|
||||
unsigned long min_pages, seeded = 0;
|
||||
int i;
|
||||
|
||||
selftest_vm.kvm.arch.mmu.vtcr = host_mmu.arch.mmu.vtcr;
|
||||
WARN_ON(kvm_guest_prepare_stage2(&selftest_vm, virt));
|
||||
|
||||
/*
|
||||
* Mirror pkvm_refill_memcache() for the share/donate pre-checks;
|
||||
* the selftest invokes those functions directly and would
|
||||
* otherwise see an empty memcache.
|
||||
*/
|
||||
min_pages = kvm_mmu_cache_min_pages(&selftest_vm.kvm.arch.mmu);
|
||||
|
||||
for (i = 0; i < pkvm_selftest_pages(); i++) {
|
||||
if (p[i].refcount)
|
||||
continue;
|
||||
p[i].refcount = 1;
|
||||
hyp_put_page(&selftest_vm.pool, hyp_page_to_virt(&p[i]));
|
||||
if (seeded < min_pages) {
|
||||
push_hyp_memcache(&selftest_vcpu.vcpu.arch.pkvm_memcache,
|
||||
hyp_page_to_virt(&p[i]), hyp_virt_to_phys);
|
||||
seeded++;
|
||||
} else {
|
||||
hyp_put_page(&selftest_vm.pool, hyp_page_to_virt(&p[i]));
|
||||
}
|
||||
}
|
||||
|
||||
selftest_vm.kvm.arch.pkvm.handle = __pkvm_reserve_vm();
|
||||
|
|
|
|||
|
|
@ -164,13 +164,16 @@ static int hyp_trace_buffer_load(struct hyp_trace_buffer *trace_buffer,
|
|||
return ret;
|
||||
}
|
||||
|
||||
static bool hyp_trace_desc_validate(struct hyp_trace_desc *desc, size_t desc_size)
|
||||
static bool hyp_trace_desc_is_valid(struct hyp_trace_desc *desc, size_t desc_size)
|
||||
{
|
||||
struct ring_buffer_desc *rb_desc;
|
||||
unsigned int cpu;
|
||||
size_t nr_bpages;
|
||||
void *desc_end;
|
||||
|
||||
if (!is_protected_kvm_enabled())
|
||||
return true;
|
||||
|
||||
/*
|
||||
* Both desc_size and bpages_backing_size are untrusted host-provided
|
||||
* values. We rely on __pkvm_host_donate_hyp() to enforce their validity.
|
||||
|
|
@ -212,8 +215,10 @@ int __tracing_load(unsigned long desc_hva, size_t desc_size)
|
|||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (!hyp_trace_desc_validate(desc, desc_size))
|
||||
if (!hyp_trace_desc_is_valid(desc, desc_size)) {
|
||||
ret = -EINVAL;
|
||||
goto err_release_desc;
|
||||
}
|
||||
|
||||
hyp_spin_lock(&trace_buffer.lock);
|
||||
|
||||
|
|
|
|||
|
|
@ -663,7 +663,8 @@ static void __noreturn __hyp_call_panic(u64 spsr, u64 elr, u64 par)
|
|||
host_ctxt = host_data_ptr(host_ctxt);
|
||||
vcpu = host_ctxt->__hyp_running_vcpu;
|
||||
|
||||
__deactivate_traps(vcpu);
|
||||
if (vcpu)
|
||||
__deactivate_traps(vcpu);
|
||||
sysreg_restore_host_state_vhe(host_ctxt);
|
||||
|
||||
panic("HYP panic:\nPS:%08llx PC:%016llx ESR:%08llx\nFAR:%016llx HPFAR:%016llx PAR:%016llx\nVCPU:%p\n",
|
||||
|
|
|
|||
|
|
@ -1576,21 +1576,24 @@ struct kvm_s2_fault_desc {
|
|||
static int gmem_abort(const struct kvm_s2_fault_desc *s2fd)
|
||||
{
|
||||
bool write_fault, exec_fault;
|
||||
bool perm_fault = kvm_vcpu_trap_is_permission_fault(s2fd->vcpu);
|
||||
enum kvm_pgtable_walk_flags flags = KVM_PGTABLE_WALK_SHARED;
|
||||
enum kvm_pgtable_prot prot = KVM_PGTABLE_PROT_R;
|
||||
struct kvm_pgtable *pgt = s2fd->vcpu->arch.hw_mmu->pgt;
|
||||
unsigned long mmu_seq;
|
||||
struct page *page;
|
||||
struct kvm *kvm = s2fd->vcpu->kvm;
|
||||
void *memcache;
|
||||
void *memcache = NULL;
|
||||
kvm_pfn_t pfn;
|
||||
gfn_t gfn;
|
||||
int ret;
|
||||
|
||||
memcache = get_mmu_memcache(s2fd->vcpu);
|
||||
ret = topup_mmu_memcache(s2fd->vcpu, memcache);
|
||||
if (ret)
|
||||
return ret;
|
||||
if (!perm_fault) {
|
||||
memcache = get_mmu_memcache(s2fd->vcpu);
|
||||
ret = topup_mmu_memcache(s2fd->vcpu, memcache);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (s2fd->nested)
|
||||
gfn = kvm_s2_trans_output(s2fd->nested) >> PAGE_SHIFT;
|
||||
|
|
@ -1631,9 +1634,19 @@ static int gmem_abort(const struct kvm_s2_fault_desc *s2fd)
|
|||
goto out_unlock;
|
||||
}
|
||||
|
||||
ret = KVM_PGT_FN(kvm_pgtable_stage2_map)(pgt, s2fd->fault_ipa, PAGE_SIZE,
|
||||
__pfn_to_phys(pfn), prot,
|
||||
memcache, flags);
|
||||
if (perm_fault) {
|
||||
/*
|
||||
* Drop the SW bits in favour of those stored in the
|
||||
* PTE, which will be preserved.
|
||||
*/
|
||||
prot &= ~KVM_NV_GUEST_MAP_SZ;
|
||||
ret = KVM_PGT_FN(kvm_pgtable_stage2_relax_perms)(pgt, s2fd->fault_ipa,
|
||||
prot, flags);
|
||||
} else {
|
||||
ret = KVM_PGT_FN(kvm_pgtable_stage2_map)(pgt, s2fd->fault_ipa, PAGE_SIZE,
|
||||
__pfn_to_phys(pfn), prot,
|
||||
memcache, flags);
|
||||
}
|
||||
|
||||
out_unlock:
|
||||
kvm_release_faultin_page(kvm, page, !!ret, prot & KVM_PGTABLE_PROT_W);
|
||||
|
|
|
|||
|
|
@ -2307,6 +2307,10 @@ static int vgic_its_restore_dte(struct vgic_its *its, u32 id,
|
|||
/* dte entry is valid */
|
||||
offset = (entry & KVM_ITS_DTE_NEXT_MASK) >> KVM_ITS_DTE_NEXT_SHIFT;
|
||||
|
||||
/* Mimic the MAPD behaviour and reject invalid EID bits. */
|
||||
if (num_eventid_bits > VITS_TYPER_IDBITS)
|
||||
return -EINVAL;
|
||||
|
||||
if (!vgic_its_check_id(its, baser, id, NULL))
|
||||
return -EINVAL;
|
||||
|
||||
|
|
|
|||
|
|
@ -1018,7 +1018,7 @@ struct folio *vma_alloc_zeroed_movable_folio(struct vm_area_struct *vma,
|
|||
return vma_alloc_folio(flags, 0, vma, vaddr);
|
||||
}
|
||||
|
||||
bool tag_clear_highpages(struct page *page, int numpages)
|
||||
bool tag_clear_highpages(struct page *page, int numpages, bool clear_pages)
|
||||
{
|
||||
/*
|
||||
* Check if MTE is supported and fall back to clear_highpage().
|
||||
|
|
@ -1026,13 +1026,16 @@ bool tag_clear_highpages(struct page *page, int numpages)
|
|||
* post_alloc_hook() will invoke tag_clear_highpages().
|
||||
*/
|
||||
if (!system_supports_mte())
|
||||
return false;
|
||||
return clear_pages;
|
||||
|
||||
/* Newly allocated pages, shouldn't have been tagged yet */
|
||||
for (int i = 0; i < numpages; i++, page++) {
|
||||
WARN_ON_ONCE(!try_page_mte_tagging(page));
|
||||
mte_zero_clear_page_tags(page_address(page));
|
||||
if (clear_pages)
|
||||
mte_zero_clear_page_tags(page_address(page));
|
||||
else
|
||||
mte_clear_page_tags(page_address(page));
|
||||
set_page_mte_tagged(page);
|
||||
}
|
||||
return true;
|
||||
return false;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@ generic-y += qrwlock.h
|
|||
generic-y += qrwlock_types.h
|
||||
generic-y += qspinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += user.h
|
||||
generic-y += vmlinux.lds.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -5,4 +5,5 @@ generic-y += extable.h
|
|||
generic-y += iomap.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -10,5 +10,6 @@ generic-y += qrwlock.h
|
|||
generic-y += user.h
|
||||
generic-y += ioctl.h
|
||||
generic-y += mmzone.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += statfs.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -30,6 +30,8 @@ static inline unsigned long efi_get_kimg_min_align(void)
|
|||
return SZ_2M;
|
||||
}
|
||||
|
||||
#define EFI_KIMG_PREFERRED_ADDRESS PHYSADDR(VMLINUX_LOAD_ADDRESS)
|
||||
unsigned long efi_get_kimg_kaslr_address(void);
|
||||
|
||||
#define EFI_KIMG_PREFERRED_ADDRESS efi_get_kimg_kaslr_address()
|
||||
|
||||
#endif /* _ASM_LOONGARCH_EFI_H */
|
||||
|
|
|
|||
|
|
@ -4,6 +4,12 @@
|
|||
|
||||
#ifdef CONFIG_PARAVIRT
|
||||
|
||||
#include <linux/jump_label.h>
|
||||
|
||||
DECLARE_STATIC_KEY_FALSE(virt_preempt_key);
|
||||
DECLARE_STATIC_KEY_FALSE(virt_spin_lock_key);
|
||||
DECLARE_PER_CPU(struct kvm_steal_time, steal_time);
|
||||
|
||||
int __init pv_ipi_init(void);
|
||||
int __init pv_time_init(void);
|
||||
int __init pv_spinlock_init(void);
|
||||
|
|
|
|||
|
|
@ -3,12 +3,9 @@
|
|||
#define _ASM_LOONGARCH_QSPINLOCK_H
|
||||
|
||||
#include <asm/kvm_para.h>
|
||||
#include <linux/jump_label.h>
|
||||
#include <asm/paravirt.h>
|
||||
|
||||
#ifdef CONFIG_PARAVIRT
|
||||
DECLARE_STATIC_KEY_FALSE(virt_preempt_key);
|
||||
DECLARE_STATIC_KEY_FALSE(virt_spin_lock_key);
|
||||
DECLARE_PER_CPU(struct kvm_steal_time, steal_time);
|
||||
|
||||
#define virt_spin_lock virt_spin_lock
|
||||
|
||||
|
|
|
|||
|
|
@ -60,16 +60,18 @@ NOKPROBE_SYMBOL(arch_prepare_kprobe);
|
|||
/* Install breakpoint in text */
|
||||
void arch_arm_kprobe(struct kprobe *p)
|
||||
{
|
||||
*p->addr = KPROBE_BP_INSN;
|
||||
flush_insn_slot(p);
|
||||
u32 insn = KPROBE_BP_INSN;
|
||||
|
||||
larch_insn_text_copy(p->addr, &insn, LOONGARCH_INSN_SIZE);
|
||||
}
|
||||
NOKPROBE_SYMBOL(arch_arm_kprobe);
|
||||
|
||||
/* Remove breakpoint from text */
|
||||
void arch_disarm_kprobe(struct kprobe *p)
|
||||
{
|
||||
*p->addr = p->opcode;
|
||||
flush_insn_slot(p);
|
||||
u32 insn = p->opcode;
|
||||
|
||||
larch_insn_text_copy(p->addr, &insn, LOONGARCH_INSN_SIZE);
|
||||
}
|
||||
NOKPROBE_SYMBOL(arch_disarm_kprobe);
|
||||
|
||||
|
|
@ -184,16 +186,16 @@ static bool reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
|
|||
struct kprobe_ctlblk *kcb)
|
||||
{
|
||||
switch (kcb->kprobe_status) {
|
||||
case KPROBE_HIT_SS:
|
||||
case KPROBE_HIT_SSDONE:
|
||||
case KPROBE_HIT_ACTIVE:
|
||||
kprobes_inc_nmissed_count(p);
|
||||
setup_singlestep(p, regs, kcb, 1);
|
||||
break;
|
||||
case KPROBE_HIT_SS:
|
||||
case KPROBE_REENTER:
|
||||
pr_warn("Failed to recover from reentered kprobes.\n");
|
||||
dump_kprobe(p);
|
||||
WARN_ON_ONCE(1);
|
||||
BUG();
|
||||
break;
|
||||
default:
|
||||
WARN_ON(1);
|
||||
|
|
|
|||
|
|
@ -134,11 +134,23 @@ early_param("nokaslr", nokaslr);
|
|||
|
||||
#define KASLR_DISABLED_MESSAGE "KASLR is disabled by %s in %s cmdline.\n"
|
||||
|
||||
/*
|
||||
* Note: strictly-defined KASLR means the kernel's final runtime address
|
||||
* has a random offset from the kernel's load address, which is implemented
|
||||
* in relocate.c; broadly-defined KALSR means the kernel's final runtime
|
||||
* address has a random offset from the kernel's link address (a.k.a.
|
||||
* VMLINUX_LOAD_ADDRESS), which also include the efistlub implementation,
|
||||
* kexec_file implementation and QEMU direct kernel boot. kaslr_disabled()
|
||||
* return true only means strictly-defined KASLR is disabled.
|
||||
*/
|
||||
static inline __init bool kaslr_disabled(void)
|
||||
{
|
||||
char *str;
|
||||
const char *builtin_cmdline = CONFIG_CMDLINE;
|
||||
|
||||
if (kaslr_offset())
|
||||
return true; /* KASLR is performed during early boot. */
|
||||
|
||||
str = strstr(builtin_cmdline, "nokaslr");
|
||||
if (str == builtin_cmdline || (str > builtin_cmdline && *(str - 1) == ' ')) {
|
||||
pr_info(KASLR_DISABLED_MESSAGE, "\'nokaslr\'", "built-in");
|
||||
|
|
@ -210,14 +222,52 @@ static inline void __init *determine_relocation_address(void)
|
|||
return RELOCATED_KASLR(destination);
|
||||
}
|
||||
|
||||
static unsigned long __init determine_initrd_address(unsigned long *size)
|
||||
{
|
||||
unsigned long start = 0;
|
||||
unsigned long key_length;
|
||||
char *p, *endp, *key = "initrd=";
|
||||
|
||||
key_length = strlen(key);
|
||||
p = strstr(boot_command_line, key);
|
||||
|
||||
if (!p) {
|
||||
key = "initrdmem=";
|
||||
key_length = strlen(key);
|
||||
p = strstr(boot_command_line, key);
|
||||
}
|
||||
|
||||
if (p == boot_command_line || (p > boot_command_line && *(p - 1) == ' ')) {
|
||||
p += key_length;
|
||||
start = memparse(p, &endp);
|
||||
if (*endp == ',')
|
||||
*size = memparse(endp + 1, NULL);
|
||||
}
|
||||
|
||||
return start;
|
||||
}
|
||||
|
||||
static inline int __init relocation_addr_valid(void *location_new)
|
||||
{
|
||||
unsigned long kernel_start, kernel_size;
|
||||
unsigned long initrd_start, initrd_size = 0;
|
||||
|
||||
if ((unsigned long)location_new & 0x00000ffff)
|
||||
return 0; /* Inappropriately aligned new location */
|
||||
|
||||
if ((unsigned long)location_new < (unsigned long)_end)
|
||||
return 0; /* New location overlaps original kernel */
|
||||
|
||||
initrd_start = determine_initrd_address(&initrd_size);
|
||||
if (initrd_start && initrd_size) {
|
||||
kernel_start = PHYSADDR(location_new);
|
||||
kernel_size = (unsigned long)_end - (unsigned long)_text;
|
||||
|
||||
if (kernel_start < (initrd_start + initrd_size) &&
|
||||
initrd_start < (kernel_start + kernel_size))
|
||||
return 0; /* initrd/initramfs overlaps kernel */
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -123,11 +123,7 @@ void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
|
|||
{
|
||||
unsigned long start_pfn = start >> PAGE_SHIFT;
|
||||
unsigned long nr_pages = size >> PAGE_SHIFT;
|
||||
struct page *page = pfn_to_page(start_pfn);
|
||||
|
||||
/* With altmap the first mapped page is offset from @start */
|
||||
if (altmap)
|
||||
page += vmem_altmap_offset(altmap);
|
||||
__remove_pages(start_pfn, nr_pages, altmap);
|
||||
}
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -3,5 +3,6 @@ generated-y += syscall_table.h
|
|||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += spinlock.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@ generic-y += extable.h
|
|||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += parport.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += syscalls.h
|
||||
generic-y += tlb.h
|
||||
generic-y += user.h
|
||||
|
|
|
|||
|
|
@ -12,5 +12,6 @@ generic-y += mcs_spinlock.h
|
|||
generic-y += parport.h
|
||||
generic-y += qrwlock.h
|
||||
generic-y += qspinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += user.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@ generic-y += cmpxchg.h
|
|||
generic-y += extable.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += spinlock.h
|
||||
generic-y += user.h
|
||||
generic-y += text-patching.h
|
||||
|
|
|
|||
|
|
@ -12,4 +12,6 @@
|
|||
#define __ALIGN .align 4
|
||||
#define __ALIGN_STR ".align 4"
|
||||
|
||||
#define _THIS_IP_ ({ unsigned long __ip; asm volatile("nextpc %0" : "=r" (__ip)); __ip; })
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -8,4 +8,5 @@ generic-y += spinlock_types.h
|
|||
generic-y += spinlock.h
|
||||
generic-y += qrwlock_types.h
|
||||
generic-y += qrwlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += user.h
|
||||
|
|
|
|||
|
|
@ -4,4 +4,5 @@ generated-y += syscall_table_64.h
|
|||
generic-y += agp.h
|
||||
generic-y += kvm_para.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += user.h
|
||||
|
|
|
|||
|
|
@ -83,11 +83,10 @@ config MSI_BITMAP_SELFTEST
|
|||
depends on DEBUG_KERNEL
|
||||
|
||||
config GUEST_STATE_BUFFER_TEST
|
||||
def_tristate n
|
||||
def_tristate KUNIT_ALL_TESTS
|
||||
prompt "Enable Guest State Buffer unit tests"
|
||||
depends on KUNIT
|
||||
depends on KVM_BOOK3S_HV_POSSIBLE
|
||||
default KUNIT_ALL_TESTS
|
||||
help
|
||||
The Guest State Buffer is a data format specified in the PAPR.
|
||||
It is by hcalls to communicate the state of L2 guests between
|
||||
|
|
|
|||
|
|
@ -85,6 +85,8 @@ CONFIG_PMAC_SMU=y
|
|||
CONFIG_MAC_EMUMOUSEBTN=y
|
||||
CONFIG_WINDFARM=y
|
||||
CONFIG_WINDFARM_PM81=y
|
||||
CONFIG_WINDFARM_PM72=y
|
||||
CONFIG_WINDFARM_RM31=y
|
||||
CONFIG_WINDFARM_PM91=y
|
||||
CONFIG_WINDFARM_PM112=y
|
||||
CONFIG_WINDFARM_PM121=y
|
||||
|
|
|
|||
|
|
@ -393,6 +393,7 @@ CONFIG_NETCONSOLE=m
|
|||
CONFIG_TUN=m
|
||||
CONFIG_VETH=m
|
||||
CONFIG_VIRTIO_NET=m
|
||||
CONFIG_EL3=m
|
||||
CONFIG_VORTEX=m
|
||||
CONFIG_TYPHOON=m
|
||||
CONFIG_ADAPTEC_STARFIRE=m
|
||||
|
|
|
|||
|
|
@ -5,4 +5,5 @@ generated-y += syscall_table_spu.h
|
|||
generic-y += agp.h
|
||||
generic-y += mcs_spinlock.h
|
||||
generic-y += qrwlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += early_ioremap.h
|
||||
|
|
|
|||
|
|
@ -79,10 +79,6 @@ extern int pmac_i2c_match_adapter(struct device_node *dev,
|
|||
struct i2c_adapter *adapter);
|
||||
|
||||
|
||||
/* (legacy) Locking functions exposed to i2c-keywest */
|
||||
extern int pmac_low_i2c_lock(struct device_node *np);
|
||||
extern int pmac_low_i2c_unlock(struct device_node *np);
|
||||
|
||||
/* Access functions for platform code */
|
||||
extern int pmac_i2c_open(struct pmac_i2c_bus *bus, int polled);
|
||||
extern void pmac_i2c_close(struct pmac_i2c_bus *bus);
|
||||
|
|
|
|||
|
|
@ -458,6 +458,10 @@ DEFINE_PER_CPU(u8, irq_work_pending);
|
|||
|
||||
#endif /* 32 vs 64 bit */
|
||||
|
||||
/*
|
||||
* Must be called with preemption disabled since it updates
|
||||
* per-CPU irq_work state and programs the local CPU decrementer.
|
||||
*/
|
||||
void arch_irq_work_raise(void)
|
||||
{
|
||||
/*
|
||||
|
|
@ -471,10 +475,8 @@ void arch_irq_work_raise(void)
|
|||
* which could get tangled up if we're messing with the same state
|
||||
* here.
|
||||
*/
|
||||
preempt_disable();
|
||||
set_irq_work_pending_flag();
|
||||
set_dec(1);
|
||||
preempt_enable();
|
||||
}
|
||||
|
||||
static void set_dec_or_work(u64 val)
|
||||
|
|
|
|||
|
|
@ -210,7 +210,7 @@ static ssize_t processor_bus_topology_show(struct device *dev, struct device_att
|
|||
0, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
|
|
@ -244,12 +244,14 @@ static ssize_t processor_bus_topology_show(struct device *dev, struct device_att
|
|||
starting_index, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
}
|
||||
|
||||
out_success:
|
||||
put_cpu_var(hv_gpci_reqb);
|
||||
return n;
|
||||
|
||||
out:
|
||||
|
|
@ -278,7 +280,7 @@ static ssize_t processor_config_show(struct device *dev, struct device_attribute
|
|||
0, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
|
|
@ -312,12 +314,14 @@ static ssize_t processor_config_show(struct device *dev, struct device_attribute
|
|||
starting_index, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
}
|
||||
|
||||
out_success:
|
||||
put_cpu_var(hv_gpci_reqb);
|
||||
return n;
|
||||
|
||||
out:
|
||||
|
|
@ -346,7 +350,7 @@ static ssize_t affinity_domain_via_virtual_processor_show(struct device *dev,
|
|||
0, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
|
|
@ -382,12 +386,14 @@ static ssize_t affinity_domain_via_virtual_processor_show(struct device *dev,
|
|||
starting_index, secondary_index, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
}
|
||||
|
||||
out_success:
|
||||
put_cpu_var(hv_gpci_reqb);
|
||||
return n;
|
||||
|
||||
out:
|
||||
|
|
@ -416,7 +422,7 @@ static ssize_t affinity_domain_via_domain_show(struct device *dev, struct device
|
|||
0, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
|
|
@ -448,12 +454,14 @@ static ssize_t affinity_domain_via_domain_show(struct device *dev, struct device
|
|||
starting_index, 0, buf, &n, arg);
|
||||
|
||||
if (!ret)
|
||||
return n;
|
||||
goto out_success;
|
||||
|
||||
if (ret != H_PARAMETER)
|
||||
goto out;
|
||||
}
|
||||
|
||||
out_success:
|
||||
put_cpu_var(hv_gpci_reqb);
|
||||
return n;
|
||||
|
||||
out:
|
||||
|
|
|
|||
|
|
@ -293,6 +293,8 @@ static int pika_dtm_thread(void __iomem *fpga)
|
|||
schedule_timeout(HZ);
|
||||
}
|
||||
|
||||
put_device(&client->dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -27,8 +27,8 @@
|
|||
|
||||
static void __init km82xx_pic_init(void)
|
||||
{
|
||||
struct device_node *np __free(device_node);
|
||||
np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic");
|
||||
struct device_node *np __free(device_node) = of_find_compatible_node(NULL,
|
||||
NULL, "fsl,pq2-pic");
|
||||
|
||||
if (!np) {
|
||||
pr_err("PIC init: can not find cpm-pic node\n");
|
||||
|
|
|
|||
|
|
@ -1058,40 +1058,6 @@ int pmac_i2c_match_adapter(struct device_node *dev, struct i2c_adapter *adapter)
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(pmac_i2c_match_adapter);
|
||||
|
||||
int pmac_low_i2c_lock(struct device_node *np)
|
||||
{
|
||||
struct pmac_i2c_bus *bus, *found = NULL;
|
||||
|
||||
list_for_each_entry(bus, &pmac_i2c_busses, link) {
|
||||
if (np == bus->controller) {
|
||||
found = bus;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!found)
|
||||
return -ENODEV;
|
||||
return pmac_i2c_open(bus, 0);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pmac_low_i2c_lock);
|
||||
|
||||
int pmac_low_i2c_unlock(struct device_node *np)
|
||||
{
|
||||
struct pmac_i2c_bus *bus, *found = NULL;
|
||||
|
||||
list_for_each_entry(bus, &pmac_i2c_busses, link) {
|
||||
if (np == bus->controller) {
|
||||
found = bus;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!found)
|
||||
return -ENODEV;
|
||||
pmac_i2c_close(bus);
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pmac_low_i2c_unlock);
|
||||
|
||||
|
||||
int pmac_i2c_open(struct pmac_i2c_bus *bus, int polled)
|
||||
{
|
||||
int rc;
|
||||
|
|
|
|||
|
|
@ -937,6 +937,28 @@ config RISCV_VECTOR_MISALIGNED
|
|||
help
|
||||
Enable detecting support for vector misaligned loads and stores.
|
||||
|
||||
config RISCV_SBI_FWFT_DELEGATE_MISALIGNED
|
||||
bool "Request firmware delegation of unaligned access exceptions"
|
||||
depends on RISCV_SBI
|
||||
depends on NONPORTABLE
|
||||
help
|
||||
Use SBI FWFT to request delegation of load address misaligned and
|
||||
store address misaligned exceptions, if possible, and prefer Linux
|
||||
kernel emulation of these accesses to firmware emulation.
|
||||
|
||||
Unfortunately, Linux's emulation is still incomplete. Namely, it
|
||||
currently does not handle vector instructions and KVM guest accesses.
|
||||
On platforms where these accesses would have been handled by firmware,
|
||||
enabling this causes unexpected kernel oopses, userspaces crashes and
|
||||
KVM guest crashes. If you are sure that these are not a problem for
|
||||
your platform, you can say Y here, which may improve performance.
|
||||
|
||||
Saying N here will not worsen emulation support for unaligned accesses
|
||||
even in the case where the firmware also has incomplete support. It
|
||||
simply keeps the firmware's emulation enabled.
|
||||
|
||||
If you don't know what to do here, say N.
|
||||
|
||||
choice
|
||||
prompt "Unaligned Accesses Support"
|
||||
default RISCV_PROBE_UNALIGNED_ACCESS
|
||||
|
|
|
|||
|
|
@ -101,16 +101,6 @@ &ccc_nw {
|
|||
status = "okay";
|
||||
};
|
||||
|
||||
&i2c0 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c0_fabric>;
|
||||
};
|
||||
|
||||
&i2c1 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c1_mssio>;
|
||||
};
|
||||
|
||||
&mmuart1 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&uart1_fabric>;
|
||||
|
|
|
|||
|
|
@ -14,6 +14,16 @@ / {
|
|||
"microchip,mpfs";
|
||||
};
|
||||
|
||||
&i2c0 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c0_fabric>;
|
||||
};
|
||||
|
||||
&i2c1 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c1_mssio>;
|
||||
};
|
||||
|
||||
&syscontroller {
|
||||
microchip,bitstream-flash = <&sys_ctrl_flash>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -11,3 +11,22 @@ / {
|
|||
"microchip,mpfs-icicle-kit",
|
||||
"microchip,mpfs";
|
||||
};
|
||||
|
||||
&i2c0 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c0_fabric>;
|
||||
};
|
||||
|
||||
/*
|
||||
* Due to silicon errata, routing via MSS IOs doesn't work on ES devices.
|
||||
* Instead, i2c1, appearing on B1/C1, which are normally MSS IOs, is routed
|
||||
* via the fabric and back to B1/C1 via "fabric-test" functionality.
|
||||
* This is done silently by Libero, so the iomux0 setting for i2c1 has to
|
||||
* be fabric IO, despite tooling etc saying that MSS IOs are used.
|
||||
*
|
||||
* See Section 3.3 of https://ww1.microchip.com/downloads/aemDocuments/documents/FPGA/ProductDocuments/Errata/polarfiresoc/microsemi_polarfire_soc_fpga_egineering_samples_errata_er0219_v1.pdf
|
||||
*/
|
||||
&i2c1 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c1_fabric>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -135,29 +135,6 @@ &tdm_ext {
|
|||
clock-frequency = <49152000>;
|
||||
};
|
||||
|
||||
&camss {
|
||||
assigned-clocks = <&ispcrg JH7110_ISPCLK_DOM4_APB_FUNC>,
|
||||
<&ispcrg JH7110_ISPCLK_MIPI_RX0_PXL>;
|
||||
assigned-clock-rates = <49500000>, <198000000>;
|
||||
|
||||
ports {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
port@0 {
|
||||
reg = <0>;
|
||||
};
|
||||
|
||||
port@1 {
|
||||
reg = <1>;
|
||||
|
||||
camss_from_csi2rx: endpoint {
|
||||
remote-endpoint = <&csi2rx_to_camss>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
&csi2rx {
|
||||
assigned-clocks = <&ispcrg JH7110_ISPCLK_VIN_SYS>;
|
||||
assigned-clock-rates = <297000000>;
|
||||
|
|
@ -175,9 +152,7 @@ port@0 {
|
|||
port@1 {
|
||||
reg = <1>;
|
||||
|
||||
csi2rx_to_camss: endpoint {
|
||||
remote-endpoint = <&camss_from_csi2rx>;
|
||||
};
|
||||
/* remote CAMSS endpoint */
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -1199,34 +1199,6 @@ csi_phy: phy@19820000 {
|
|||
#phy-cells = <0>;
|
||||
};
|
||||
|
||||
camss: isp@19840000 {
|
||||
compatible = "starfive,jh7110-camss";
|
||||
reg = <0x0 0x19840000 0x0 0x10000>,
|
||||
<0x0 0x19870000 0x0 0x30000>;
|
||||
reg-names = "syscon", "isp";
|
||||
clocks = <&ispcrg JH7110_ISPCLK_DOM4_APB_FUNC>,
|
||||
<&ispcrg JH7110_ISPCLK_ISPV2_TOP_WRAPPER_C>,
|
||||
<&ispcrg JH7110_ISPCLK_DVP_INV>,
|
||||
<&ispcrg JH7110_ISPCLK_VIN_P_AXI_WR>,
|
||||
<&ispcrg JH7110_ISPCLK_MIPI_RX0_PXL>,
|
||||
<&syscrg JH7110_SYSCLK_ISP_TOP_CORE>,
|
||||
<&syscrg JH7110_SYSCLK_ISP_TOP_AXI>;
|
||||
clock-names = "apb_func", "wrapper_clk_c", "dvp_inv",
|
||||
"axiwr", "mipi_rx0_pxl", "ispcore_2x",
|
||||
"isp_axi";
|
||||
resets = <&ispcrg JH7110_ISPRST_ISPV2_TOP_WRAPPER_P>,
|
||||
<&ispcrg JH7110_ISPRST_ISPV2_TOP_WRAPPER_C>,
|
||||
<&ispcrg JH7110_ISPRST_VIN_P_AXI_RD>,
|
||||
<&ispcrg JH7110_ISPRST_VIN_P_AXI_WR>,
|
||||
<&syscrg JH7110_SYSRST_ISP_TOP>,
|
||||
<&syscrg JH7110_SYSRST_ISP_TOP_AXI>;
|
||||
reset-names = "wrapper_p", "wrapper_c", "axird",
|
||||
"axiwr", "isp_top_n", "isp_top_axi";
|
||||
power-domains = <&pwrc JH7110_PD_ISP>;
|
||||
interrupts = <92>, <87>, <90>, <88>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
voutcrg: clock-controller@295c0000 {
|
||||
compatible = "starfive,jh7110-voutcrg";
|
||||
reg = <0x0 0x295c0000 0x0 0x10000>;
|
||||
|
|
|
|||
|
|
@ -57,7 +57,7 @@ void mips_errata_patch_func(struct alt_entry *begin, struct alt_entry *end,
|
|||
}
|
||||
|
||||
tmp = (1U << alt->patch_id);
|
||||
if (cpu_req_errata && tmp) {
|
||||
if (cpu_req_errata & tmp) {
|
||||
mutex_lock(&text_mutex);
|
||||
patch_text_nosync(ALT_OLD_PTR(alt), ALT_ALT_PTR(alt),
|
||||
alt->alt_len);
|
||||
|
|
|
|||
|
|
@ -14,5 +14,6 @@ generic-y += ticket_spinlock.h
|
|||
generic-y += qrwlock.h
|
||||
generic-y += qrwlock_types.h
|
||||
generic-y += qspinlock.h
|
||||
generic-y += ring_buffer.h
|
||||
generic-y += user.h
|
||||
generic-y += vmlinux.lds.h
|
||||
|
|
|
|||
|
|
@ -107,6 +107,8 @@ static long compat_restore_sigcontext(struct pt_regs *regs,
|
|||
|
||||
/* sc_regs is structured the same as the start of pt_regs */
|
||||
err = __copy_from_user(&cregs, &sc->sc_regs, sizeof(sc->sc_regs));
|
||||
if (unlikely(err))
|
||||
return err;
|
||||
|
||||
cregs_to_regs(&cregs, regs);
|
||||
|
||||
|
|
|
|||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user