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When running under some other hypervisor, prefer nacl_csr_xyz()
for accessing AIA CSRs in the run-loop. This makes CSR access
faster whenever SBI nested acceleration is available.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-11-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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When running under some other hypervisor, prefer nacl_csr_xyz()
for accessing H-extension CSRs in the run-loop. This makes CSR
access faster whenever SBI nested acceleration is available.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-10-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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Add a common nested acceleration support which will be shared by
all parts of KVM RISC-V. This nested acceleration support detects
and enables SBI NACL extension usage based on static keys which
ensures minimum impact on the non-nested scenario.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-9-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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Add defines for the new SBI nested acceleration extension which was
ratified as part of the SBI v2.0 specification.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-8-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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No need to setup SGEI local interrupt when there are zero guest
external interrupts (i.e. zero HW IMSIC guest files).
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-7-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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The aia_set_hvictl() internally writes the HVICTL CSR which makes
it difficult to optimize the CSR write using SBI NACL extension for
kvm_riscv_vcpu_aia_update_hvip() function so replace aia_set_hvictl()
with new aia_hvictl_value() which only computes the HVICTL value.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-6-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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Break down the __kvm_riscv_switch_to() function into macros so that
these macros can be later re-used by SBI NACL extension based low-level
switch function.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-5-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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The SCOUNTEREN CSR need not be saved/restored in the low-level
__kvm_riscv_switch_to() function hence move the SCOUNTEREN CSR
save/restore to the kvm_riscv_vcpu_swap_in_guest_state() and
kvm_riscv_vcpu_swap_in_host_state() functions in C sources.
Also, re-arrange the CSR save/restore and related GPR usage in
the low-level __kvm_riscv_switch_to() low-level function.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-4-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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We will be optimizing HSTATUS CSR access via shared memory setup
using the SBI nested acceleration extension. To facilitate this,
we first move HSTATUS save/restore in kvm_riscv_vcpu_enter_exit().
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-3-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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Order the object files alphabetically in the Makefile so that
it is very predictable inserting new object files in the future.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20241020194734.58686-2-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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For the information collected on the host side, we need to
identify which data originates from the guest and record
these events separately, this can be achieved by having
KVM register perf callbacks.
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/00342d535311eb0629b9ba4f1e457a48e2abee33.1728957131.git.zhouquan@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
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Introduce basic guest support in perf, enabling it to distinguish
between PMU interrupts in the host or guest, and collect
fundamental information.
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/a67d527dc1b11493fe11f7f53584772fdd983744.1728957131.git.zhouquan@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Prevent a certain range of pages which get marked as hypervisor-only,
to get allocated to a CoCo (SNP) guest which cannot use them and thus
fail booting
- Fix the microcode loader on AMD to pay attention to the stepping of a
patch and to handle the case where a BIOS config option splits the
machine into logical NUMA nodes per L3 cache slice
- Disable LAM from being built by default due to security concerns
* tag 'x86_urgent_for_v6.12_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Ensure that RMP table fixups are reserved
x86/microcode/AMD: Split load_microcode_amd()
x86/microcode/AMD: Pay attention to the stepping dynamically
x86/lam: Disable ADDRESS_MASKING in most cases
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ftrace fixes from Steven Rostedt:
- Fix missing mutex unlock in error path of register_ftrace_graph()
A previous fix added a return on an error path and forgot to unlock
the mutex. Instead of dealing with error paths, use guard(mutex) as
the mutex is just released at the exit of the function anyway. Other
functions in this file should be updated with this, but that's a
cleanup and not a fix.
- Change cpuhp setup name to be consistent with other cpuhp states
The same fix that the above patch fixes added a cpuhp_setup_state()
call with the name of "fgraph_idle_init". I was informed that it
should instead be something like: "fgraph:online". Update that too.
* tag 'ftrace-v6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
fgraph: Change the name of cpuhp state to "fgraph:online"
fgraph: Fix missing unlock in register_ftrace_graph()
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- Asus thermal profile fix, fixing performance issues on Lunar Lake
- Intel PMC: one revert for a lockdep issue and one bugfix
- Dell WMI: Ignore some WMI events on suspend/resume to silence warnings
* tag 'platform-drivers-x86-v6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: asus-wmi: Fix thermal profile initialization
platform/x86: dell-wmi: Ignore suspend notifications
platform/x86/intel/pmc: Fix pmc_core_iounmap to call iounmap for valid addresses
platform/x86:intel/pmc: Revert "Enable the ACPI PM Timer to be turned off when suspended"
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"A single commit to resolve a regression existing in v6.11 or later.
The change in 1394 OHCI driver in v6.11 kernel could cause general
protection faults when rediscovering nodes in IEEE 1394 bus while
holding a spin lock. Consequently, watchdog checks can report a hard
lockup.
Currently, this issue is observed primarily during the system resume
phase when using an extra node with three ports or more is used.
However, it could potentially occur in the other cases as well"
* tag 'firewire-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: core: fix invalid port index for parent device
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Pull block fixes from Jens Axboe:
- Pull request for MD via Song fixing a few issues
- Fix a wrong check in blk_rq_map_user_bvec(), causing IO errors on
passthrough IO (Xinyu)
* tag 'block-6.12-20241026' of git://git.kernel.dk/linux:
block: fix sanity checks in blk_rq_map_user_bvec
md/raid10: fix null ptr dereference in raid10_size()
md: ensure child flush IO does not affect origin bio->bi_status
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Pull xfs fixes from Carlos Maiolino:
- Fix recovery of allocator ops after a growfs
- Do not fail repairs on metadata files with no attr fork
* tag 'xfs-6.12-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: update the pag for the last AG at recovery time
xfs: don't use __GFP_RETRY_MAYFAIL in xfs_initialize_perag
xfs: error out when a superblock buffer update reduces the agcount
xfs: update the file system geometry after recoverying superblock buffers
xfs: merge the perag freeing helpers
xfs: pass the exact range to initialize to xfs_initialize_perag
xfs: don't fail repairs on metadata files with no attr fork
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In a commit 24b7f8e5cd65 ("firewire: core: use helper functions for self
ID sequence"), the enumeration over self ID sequence was refactored with
some helper functions with KUnit tests. These helper functions are
guaranteed to work expectedly by the KUnit tests, however their application
includes a mistake to assign invalid value to the index of port connected
to parent device.
This bug affects the case that any extra node devices which has three or
more ports are connected to 1394 OHCI controller. In the case, the path
to update the tree cache could hits WARN_ON(), and gets general protection
fault due to the access to invalid address computed by the invalid value.
This commit fixes the bug to assign correct port index.
Cc: stable@vger.kernel.org
Reported-by: Edmund Raile <edmund.raile@proton.me>
Closes: https://lore.kernel.org/lkml/8a9902a4ece9329af1e1e42f5fea76861f0bf0e8.camel@proton.me/
Fixes: 24b7f8e5cd65 ("firewire: core: use helper functions for self ID sequence")
Link: https://lore.kernel.org/r/20241025034137.99317-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
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When support for vivobook fan profiles was added, the initial
call to throttle_thermal_policy_set_default() was removed, which
however is necessary for full initialization.
Fix this by calling throttle_thermal_policy_set_default() again
when setting up the platform profile.
Fixes: bcbfcebda2cb ("platform/x86: asus-wmi: add support for vivobook fan profiles")
Reported-by: Michael Larabel <Michael@phoronix.com>
Closes: https://www.phoronix.com/review/lunar-lake-xe2/5
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20241025191514.15032-2-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Pull more 9p reverts from Dominique Martinet:
"Revert patches causing inode collision problems.
The code simplification introduced significant regressions on servers
that do not remap inode numbers when exporting multiple underlying
filesystems with colliding inodes. See the top-most revert (commit
be2ca3825372) for details.
This problem had been ignored for too long and the reverts will also
head to stable (6.9+).
I'm confident this set of patches gets us back to previous behaviour
(another related patch had already been reverted back in April and
we're almost back to square 1, and the rest didn't touch inode
lifecycle)"
* tag '9p-for-6.12-rc5' of https://github.com/martinetd/linux:
Revert "fs/9p: simplify iget to remove unnecessary paths"
Revert "fs/9p: fix uaf in in v9fs_stat2inode_dotl"
Revert "fs/9p: remove redundant pointer v9ses"
Revert " fs/9p: mitigate inode collisions"
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Pull smb client fixes from Steve French:
- Fix init module error caseb
- Fix memory allocation error path (for passwords) in mount
* tag 'v6.12-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix warning when destroy 'cifs_io_request_pool'
smb: client: Handle kstrdup failures for passwords
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
- Fix cached size after passthrough writes
This fix needed a trivial change in the backing-file API, which
resulted in some non-fuse files being touched.
- Revert a commit meant as a cleanup but which triggered a WARNING
- Remove a stray debug line left-over
* tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: remove stray debug line
Revert "fuse: move initialization of fuse_file to fuse_writepages() instead of in callback"
fuse: update inode size after extending passthrough write
fs: pass offset and result to backing_file end_write() callback
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix a couple of use-after-free bugs
* tag 'nfsd-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net
nfsd: fix race between laundromat and free_stateid
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix an ACPI PRM (Platform Runtime Mechanism) issue and add two
new DMI quirks, one for an ACPI IRQ override and one for lid switch
detection:
- Make acpi_parse_prmt() look for EFI_MEMORY_RUNTIME memory regions
only to comply with the UEFI specification and make PRM use
efi_guid_t instead of guid_t to avoid a compiler warning triggered
by that change (Koba Ko, Dan Carpenter)
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel)
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar)"
* tag 'acpi-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PRM: Clean up guid type in struct prm_handler_info
ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue
ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]
ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Update cpufreq documentation to match the code after recent changes
(Christian Loehle), fix a units conversion issue in the CPPC cpufreq
driver (liwei), and fix an error check in the dtpm_devfreq power
capping driver (Yuan Can)"
* tag 'pm-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: CPPC: fix perf_to_khz/khz_to_perf conversion exception
powercap: dtpm_devfreq: Fix error check against dev_pm_qos_add_request()
cpufreq: docs: Reflect latency changes in docs
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Hold the rescan lock while adding devices to avoid race with
concurrent pwrctl rescan that can lead to a crash (Bartosz
Golaszewski)
- Avoid binding pwrctl driver to QCom WCN wifi if the DT lacks the
necessary PMU regulator descriptions (Bartosz Golaszewski)
* tag 'pci-v6.12-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI/pwrctl: Abandon QCom WCN probe on pre-pwrseq device-trees
PCI: Hold rescan lock while adding devices during host probe
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
- Fix some build warnings and failures with CONFIG_FB_IOMEM_FOPS and
CONFIG_FB_DEVICE
- Remove the da8xx fbdev driver
- Constify struct sbus_mmap_map and fix indentation warning
* tag 'fbdev-for-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS
fbdev: da8xx: remove the driver
fbdev: Constify struct sbus_mmap_map
fbdev: nvidiafb: fix inconsistent indentation warning
fbdev: sstfb: Make CONFIG_FB_DEVICE optional
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
"Update MAINTAINERS with a keyword pattern for legacy GPIO API
The goal is to alert us to anyone trying to use the deprecated, legacy
API (this happens almost every release)"
* tag 'gpio-fixes-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
MAINTAINERS: add a keyword entry for the GPIO subsystem
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
- Fix the handling of ATA commands that timeout (command that did not
receive a completion interrupt within the configured timeout time).
Commands that timeout, while also having either the FAILFAST flag
set, or the command being a passthrough command, should never be
retried. Restore this behavior (as it was before v6.12-rc1).
* tag 'ata-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Set DID_TIME_OUT for commands that actually timed out
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The majority of changes here are about ASoC.
There are two core changes in ASoC (the bump of minimal topology ABI
version and the fix for references of components in DAPM code), and
others are mostly various device-specific fixes for SoundWire, AMD,
Intel, SOF, Qualcomm and FSL, in addition to a few usual HD-audio
quirks and fixes"
* tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
ALSA: hda/realtek: Update default depop procedure
ASoC: qcom: sc7280: Fix missing Soundwire runtime stream alloc
ASoC: fsl_micfil: Add sample rate constraint
ASoC: rt722-sdca: increase clk_stop_timeout to fix clock stop issue
ALSA: hda/tas2781: select CRC32 instead of CRC32_SARWATE
ALSA: hda/realtek: Add subwoofer quirk for Acer Predator G9-593
ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
ASoC: fsl_micfil: Add a flag to distinguish with different volume control types
ASoC: codecs: lpass-rx-macro: fix RXn(rx,n) macro for DSM_CTL and SEC7 regs
ASoC: Change my e-mail to gmail
ASoC: Intel: soc-acpi: lnl: Add match entry for TM2 laptops
ASoC: amd: yc: Fix non-functional mic on ASUS E1404FA
ASoC: SOF: Intel: hda: Always clean up link DMA during stop
soundwire: intel_ace2x: Send PDI stream number during prepare
ASoC: SOF: Intel: hda: Handle prepare without close for non-HDA DAI's
ASoC: SOF: ipc4-topology: Do not set ALH node_id for aggregated DAIs
MAINTAINERS: Update maintainer list for MICROCHIP ASOC, SSC and MCP16502 drivers
ASoC: qcom: Select missing common Soundwire module code on SDM845
ASoC: fsl_esai: change dev_warn to dev_dbg in irq handler
ASoC: rsnd: Fix probe failure on HiHope boards due to endpoint parsing
...
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Pull drm fixes from Dave Airlie:
"Weekly drm fixes, mostly amdgpu and xe, with minor bridge and an i915
Kconfig fix. Nothing too scary and it seems to be pretty quiet.
amdgpu:
- ACPI method handling fixes
- SMU 14.x fixes
- Display idle optimization fix
- DP link layer compliance fix
- SDMA 7.x fix
- PSR-SU fix
- SWSMU fix
i915:
- Fix DRM_I915_GVT_KVMGT dependencies in Kconfig
xe:
- Increase invalidation timeout to avoid errors in some hosts
- Flush worker on timeout
- Better handling for force wake failure
- Improve argument check on user fence creation
- Don't restart parallel queues multiple times on GT reset
bridge:
- aux: Fix assignment of OF node
- tc358767: Add missing of_node_put() in error path"
* tag 'drm-fixes-2024-10-25' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe: Don't restart parallel queues multiple times on GT reset
drm/xe/ufence: Prefetch ufence addr to catch bogus address
drm/xe: Handle unreliable MMIO reads during forcewake
drm/xe/guc/ct: Flush g2h worker in case of g2h response timeout
drm/xe: Enlarge the invalidation timeout from 150 to 500
drm/amdgpu: handle default profile on on devices without fullscreen 3D
drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too
drm/amdgpu: fix random data corruption for sdma 7
drm/amd/display: temp w/a for DP Link Layer compliance
drm/amd/display: temp w/a for dGPU to enter idle optimizations
drm/amd/pm: update deep sleep status on smu v14.0.2/3
drm/amd/pm: update overdrive function on smu v14.0.2/3
drm/amd/pm: update the driver-fw interface file for smu v14.0.2/3
drm/amd: Guard against bad data for ATIF ACPI method
drm/bridge: tc358767: fix missing of_node_put() in for_each_endpoint_of_node()
drm/bridge: Fix assignment of the of_node of the parent to aux bridge
i915: fix DRM_I915_GVT_KVMGT dependencies
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The x86 user pointer validation changes made me look at compiler output
a lot, and the wrong indentation for the ".popsection" in the generated
assembler triggered me.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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It turns out that AMD has a "Meltdown Lite(tm)" issue with non-canonical
accesses in kernel space. And so using just the high bit to decide
whether an access is in user space or kernel space ends up with the good
old "leak speculative data" if you have the right gadget using the
result:
CVE-2020-12965 “Transient Execution of Non-Canonical Accesses“
Now, the kernel surrounds the access with a STAC/CLAC pair, and those
instructions end up serializing execution on older Zen architectures,
which closes the speculation window.
But that was true only up until Zen 5, which renames the AC bit [1].
That improves performance of STAC/CLAC a lot, but also means that the
speculation window is now open.
Note that this affects not just the new address masking, but also the
regular valid_user_address() check used by access_ok(), and the asm
version of the sign bit check in the get_user() helpers.
It does not affect put_user() or clear_user() variants, since there's no
speculative result to be used in a gadget for those operations.
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Link: https://lore.kernel.org/all/80d94591-1297-4afb-b510-c665efd37f10@citrix.com/
Link: https://lore.kernel.org/all/20241023094448.GAZxjFkEOOF_DM83TQ@fat_crate.local/ [1]
Link: https://www.amd.com/en/resources/product-security/bulletin/amd-sb-1010.html
Link: https://arxiv.org/pdf/2108.10771
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Tested-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com> # LAM case
Fixes: 2865baf54077 ("x86: support user address masking instead of non-speculative conditional")
Fixes: 6014bc27561f ("x86-64: make access_ok() independent of LAM")
Fixes: b19b74bc99b1 ("x86/mm: Rework address range check in get_user() and put_user()")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge a dtpm_devfreq power capping driver fix for 6.12-rc5:
- Fix a dev_pm_qos_add_request() return value check in
__dtpm_devfreq_setup() to prevent it from failing if
a positive number is returned (Yuan Can).
* pm-powercap:
powercap: dtpm_devfreq: Fix error check against dev_pm_qos_add_request()
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Merge new DMI quirks for 6.12-rc5:
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel).
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar).
* acpi-resource:
ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]
* acpi-button:
ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue
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It wasn't there when the patch was posted for review, but somehow made it
into the pull.
Link: https://lore.kernel.org/all/20240913104703.1673180-1-mszeredi@redhat.com/
Fixes: efad7153bf93 ("fuse: allow O_PATH fd for FUSE_DEV_IOC_BACKING_OPEN")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Increase invalidation timeout to avoid errors in some hosts (Shuicheng)
- Flush worker on timeout (Badal)
- Better handling for force wake failure (Shuicheng)
- Improve argument check on user fence creation (Nirmoy)
- Don't restart parallel queues multiple times on GT reset (Nirmoy)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/trlkoiewtc4x2cyhsxmj3atayyq4zwto4iryea5pvya2ymc3yp@fdx5nhwmiyem
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The cpuhp state name given to cpuhp_setup_state() is "fgraph_idle_init"
which doesn't really conform to the names that are used for cpu hotplug
setups. Instead rename it to "fgraph:online" to be in line with other
states.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/20241024222944.473d88c5@rorschach.local.home
Suggested-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 2c02f7375e658 ("fgraph: Use CPU hotplug mechanism to initialize idle shadow stacks")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Use guard(mutex)() to acquire and automatically release ftrace_lock,
fixing the issue of not unlocking when calling cpuhp_setup_state()
fails.
Fixes smatch warning:
kernel/trace/fgraph.c:1317 register_ftrace_graph() warn: inconsistent returns '&ftrace_lock'.
Link: https://lore.kernel.org/20241024155917.1019580-1-lihuafei1@huawei.com
Fixes: 2c02f7375e65 ("fgraph: Use CPU hotplug mechanism to initialize idle shadow stacks")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202410220121.wxg0olfd-lkp@intel.com/
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull:
bridge:
- aux: Fix assignment of OF node
- tc358767: Add missing of_node_put() in error path
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241024124921.GA20475@localhost.localdomain
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Pull bpf fixes from Daniel Borkmann:
- Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF sockmap
link file descriptors (Hou Tao)
- Fix BPF arm64 JIT's address emission with tag-based KASAN enabled
reserving not enough size (Peter Collingbourne)
- Fix BPF verifier do_misc_fixups patching for inlining of the
bpf_get_branch_snapshot BPF helper (Andrii Nakryiko)
- Fix a BPF verifier bug and reject BPF program write attempts into
read-only marked BPF maps (Daniel Borkmann)
- Fix perf_event_detach_bpf_prog error handling by removing an invalid
check which would skip BPF program release (Jiri Olsa)
- Fix memory leak when parsing mount options for the BPF filesystem
(Hou Tao)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Check validity of link->type in bpf_link_show_fdinfo()
bpf: Add the missing BPF_LINK_TYPE invocation for sockmap
bpf: fix do_misc_fixups() for bpf_get_branch_snapshot()
bpf,perf: Fix perf_event_detach_bpf_prog error handling
selftests/bpf: Add test for passing in uninit mtu_len
selftests/bpf: Add test for writes to .rodata
bpf: Remove MEM_UNINIT from skb/xdp MTU helpers
bpf: Fix overloading of MEM_UNINIT's meaning
bpf: Add MEM_WRITE attribute
bpf: Preserve param->string when parsing mount options
bpf, arm64: Fix address emission with tag-based KASAN enabled
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfiler, xfrm and bluetooth.
Oddly this includes a fix for a posix clock regression; in our
previous PR we included a change there as a pre-requisite for
networking one. That fix proved to be buggy and requires the follow-up
included here. Thomas suggested we should send it, given we sent the
buggy patch.
Current release - regressions:
- posix-clock: Fix unbalanced locking in pc_clock_settime()
- netfilter: fix typo causing some targets not to load on IPv6
Current release - new code bugs:
- xfrm: policy: remove last remnants of pernet inexact list
Previous releases - regressions:
- core: fix races in netdev_tx_sent_queue()/dev_watchdog()
- bluetooth: fix UAF on sco_sock_timeout
- eth: hv_netvsc: fix VF namespace also in synthetic NIC
NETDEV_REGISTER event
- eth: usbnet: fix name regression
- eth: be2net: fix potential memory leak in be_xmit()
- eth: plip: fix transmit path breakage
Previous releases - always broken:
- sched: deny mismatched skip_sw/skip_hw flags for actions created by
classifiers
- netfilter: bpf: must hold reference on net namespace
- eth: virtio_net: fix integer overflow in stats
- eth: bnxt_en: replace ptp_lock with irqsave variant
- eth: octeon_ep: add SKB allocation failures handling in
__octep_oq_process_rx()
Misc:
- MAINTAINERS: add Simon as an official reviewer"
* tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
net: dsa: mv88e6xxx: support 4000ps cycle counter period
net: dsa: mv88e6xxx: read cycle counter period from hardware
net: dsa: mv88e6xxx: group cycle counter coefficients
net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
hv_netvsc: Fix VF namespace also in synthetic NIC NETDEV_REGISTER event
net: dsa: microchip: disable EEE for KSZ879x/KSZ877x/KSZ876x
Bluetooth: ISO: Fix UAF on iso_sock_timeout
Bluetooth: SCO: Fix UAF on sco_sock_timeout
Bluetooth: hci_core: Disable works on hci_unregister_dev
posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
r8169: avoid unsolicited interrupts
net: sched: use RCU read-side critical section in taprio_dump()
net: sched: fix use-after-free in taprio_change()
net/sched: act_api: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
net: usb: usbnet: fix name regression
mlxsw: spectrum_router: fix xa_store() error checking
virtio_net: fix integer overflow in stats
net: fix races in netdev_tx_sent_queue()/dev_watchdog()
net: wwan: fix global oob in wwan_rtnl_policy
netfilter: xtables: fix typo causing some targets not to load on IPv6
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
"Device-specific functionality quirks for Thinkpad X1 Gen3, Logitech
Bolt and some Goodix touchpads (Bartłomiej Maryńczak, Hans de Goede
and Kenneth Albanowski)"
* tag 'hid-for-linus-20241024' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: lenovo: Add support for Thinkpad X1 Tablet Gen 3 keyboard
HID: multitouch: Add quirk for Logitech Bolt receiver w/ Casa touchpad
HID: i2c-hid: Delayed i2c resume wakeup for 0x0d42 Goodix touchpad
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Fix DRM_I915_GVT_KVMGT dependencies in Kconfig
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZxniUlDg59RxOO-6@jlahtine-mobl.ger.corp.intel.com
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This reverts commit 724a08450f74b02bd89078a596fd24857827c012.
This code simplification introduced significant regressions on servers
that do not remap inode numbers when exporting multiple underlying
filesystems with colliding inodes, as can be illustrated with simple
tmpfs exports in qemu with remapping disabled:
```
# host side
cd /tmp/linux-test
mkdir m1 m2
mount -t tmpfs tmpfs m1
mount -t tmpfs tmpfs m2
mkdir m1/dir m2/dir
echo foo > m1/dir/foo
echo bar > m2/dir/bar
# guest side
# started with -virtfs local,path=/tmp/linux-test,mount_tag=tmp,security_model=mapped-file
mount -t 9p -o trans=virtio,debug=1 tmp /mnt/t
ls /mnt/t/m1/dir
# foo
ls /mnt/t/m2/dir
# bar (works ok if directry isn't open)
# cd to keep first dir's inode alive
cd /mnt/t/m1/dir
ls /mnt/t/m2/dir
# foo (should be bar)
```
Other examples can be crafted with regular files with fscache enabled,
in which case I/Os just happen to the wrong file leading to
corruptions, or guest failing to boot with:
| VFS: Lookup of 'com.android.runtime' in 9p 9p would have caused loop
In theory, we'd want the servers to be smart enough and ensure they
never send us two different files with the same 'qid.path', but while
qemu has an option to remap that is recommended (and qemu prints a
warning if this case happens), there are many other servers which do
not (kvmtool, nfs-ganesha, probably diod...), we should at least ensure
we don't cause regressions on this:
- assume servers can't be trusted and operations that should get a 'new'
inode properly do so. commit d05dcfdf5e16 (" fs/9p: mitigate inode
collisions") attempted to do this, but v9fs_fid_iget_dotl() was not
called so some higher level of caching got in the way; this needs to be
fixed properly before we can re-apply the patches.
- if we ever want to really simplify this code, we will need to add some
negotiation with the server at mount time where the server could claim
they handle this properly, at which point we could optimize this out.
(but that might not be needed at all if we properly handle the 'new'
check?)
Fixes: 724a08450f74 ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/all/20240408141436.GA17022@redhat.com/
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-4-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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This reverts commit 11763a8598f888dec631a8a903f7ada32181001f.
This is a requirement to revert commit 724a08450f74 ("fs/9p: simplify
iget to remove unnecessary paths"), see that revert for details.
Fixes: 724a08450f74 ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-3-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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This reverts commit 10211b4a23cf4a3df5c11a10e5b3d371f16a906f.
This is a requirement to revert commit 724a08450f74 ("fs/9p: simplify
iget to remove unnecessary paths"), see that revert for details.
Fixes: 724a08450f74 ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-2-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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This reverts commit d05dcfdf5e1659b2949d13060284eff3888b644e.
This is a requirement to revert commit 724a08450f74 ("fs/9p: simplify
iget to remove unnecessary paths"), see that revert for details.
Fixes: 724a08450f74 ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-1-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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