Commit Graph

1136453 Commits

Author SHA1 Message Date
Peng Fan
c94ea666dc remoteproc: imx_rproc: Support kicking Mcore from Linux for i.MX8QXP
When M4 is in the same hardware partition with Cortex-A, it
could be start/stop by Linux.

Added power domain to make sure M4 could run, it requires several power
domains to work. Make clock always optional for i.MX8QXP, because
SCFW handles it when power up M4 core.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20221021041526.3696483-5-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-10-24 10:29:22 -06:00
Peng Fan
5e50aef263 remoteproc: imx_rproc: Support attaching to i.MX8QXP M4
When M4 is kicked by SCFW, M4 runs in its own hardware partition, Linux
could only do IPC with M4, it could not start, stop, update image.

We disable recovery reboot when M4 is managed by SCFW, because
remoteproc core still not support M4 auto-recovery without loading
image.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20221021041526.3696483-4-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-10-24 10:28:43 -06:00
Peng Fan
505066645f dt-bindings: remoteproc: imx_rproc: Support i.MX8QM
Add i.MX8QM compatible.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20221021041526.3696483-3-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-10-24 10:28:35 -06:00
Peng Fan
190362e03b dt-bindings: remoteproc: imx_rproc: Support i.MX8QXP
Add i.MX8QXP compatible

Add a new property fsl,resource-id for SoC which supports SCFW.
This property is used to check whether remote process is under control
of Linux or not.

Add fsl,entry-address to specify the entry address which used by SCFW
to kick M4.

To i.MX8QM/QXP, when M4 is in the same hardware partition with Cortex-A
cores, need power up M4 through SCFW, then M4 could start. So introduce
power-domains property.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20221021041526.3696483-2-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-10-24 10:28:12 -06:00
Shengjiu Wang
47e6ab0701 remoteproc: imx_dsp_rproc: Add mutex protection for workqueue
The workqueue may execute late even after remoteproc is stopped or
stopping, some resources (rpmsg device and endpoint) have been
released in rproc_stop_subdevices(), then rproc_vq_interrupt()
accessing these resources will cause kennel dump.

Call trace:
 virtqueue_add_split+0x1ac/0x560
 virtqueue_add_inbuf+0x4c/0x60
 rpmsg_recv_done+0x15c/0x294
 vring_interrupt+0x6c/0xa4
 rproc_vq_interrupt+0x30/0x50
 imx_dsp_rproc_vq_work+0x24/0x40 [imx_dsp_rproc]
 process_one_work+0x1d0/0x354
 worker_thread+0x13c/0x470
 kthread+0x154/0x160
 ret_from_fork+0x10/0x20

Add mutex protection in imx_dsp_rproc_vq_work(), if the state is
not running, then just skip calling rproc_vq_interrupt().

Also the flush workqueue operation can't be added in rproc stop
for the same reason. The call sequence is

rproc_shutdown
-> rproc_stop
   ->rproc_stop_subdevices
   ->rproc->ops->stop()
     ->imx_dsp_rproc_stop
       ->flush_work
         -> rproc_vq_interrupt

The resource needed by rproc_vq_interrupt has been released in
rproc_stop_subdevices, so flush_work is not safe to be called in
imx_dsp_rproc_stop.

Fixes: ec0e5549f3 ("remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1664524216-19949-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-10-24 10:21:16 -06:00
Shengjiu Wang
65fcf3872f remoteproc: core: Auto select rproc-virtio device id
With multiple remoteproc device, there will below error:

sysfs: cannot create duplicate filename '/bus/platform/devices/rproc-virtio.0'

The rvdev_data.index is duplicate, that cause issue, so
need to use the PLATFORM_DEVID_AUTO instead. After fixing
device name it becomes something like:
/bus/platform/devices/rproc-virtio.2.auto

Fixes: 1d7b61c06d ("remoteproc: virtio: Create platform device for the remoteproc_virtio")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Tested-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1666100644-27010-1-git-send-email-shengjiu.wang@nxp.com
[Fixed typographical error in comment block]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-10-24 10:11:22 -06:00
Linus Torvalds
247f34f7b8 Linux 6.1-rc2 2022-10-23 15:27:33 -07:00
Linus Torvalds
05b4ebd2c7 RISC-V:
- Fix compilation without RISCV_ISA_ZICBOM
 
 - Fix kvm_riscv_vcpu_timer_pending() for Sstc
 
 ARM:
 
 - Fix a bug preventing restoring an ITS containing mappings
   for very large and very sparse device topology
 
 - Work around a relocation handling error when compiling
   the nVHE object with profile optimisation
 
 - Fix for stage-2 invalidation holding the VM MMU lock
   for too long by limiting the walk to the largest
   block mapping size
 
 - Enable stack protection and branch profiling for VHE
 
 - Two selftest fixes
 
 x86:
 
 - add compat implementation for KVM_X86_SET_MSR_FILTER ioctl
 
 selftests:
 
 - synchronize includes between include/uapi and tools/include/uapi
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "RISC-V:

   - Fix compilation without RISCV_ISA_ZICBOM

   - Fix kvm_riscv_vcpu_timer_pending() for Sstc

  ARM:

   - Fix a bug preventing restoring an ITS containing mappings for very
     large and very sparse device topology

   - Work around a relocation handling error when compiling the nVHE
     object with profile optimisation

   - Fix for stage-2 invalidation holding the VM MMU lock for too long
     by limiting the walk to the largest block mapping size

   - Enable stack protection and branch profiling for VHE

   - Two selftest fixes

  x86:

   - add compat implementation for KVM_X86_SET_MSR_FILTER ioctl

  selftests:

   - synchronize includes between include/uapi and tools/include/uapi"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  tools: include: sync include/api/linux/kvm.h
  KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
  KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
  kvm: Add support for arch compat vm ioctls
  RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
  RISC-V: Fix compilation without RISCV_ISA_ZICBOM
  KVM: arm64: vgic: Fix exit condition in scan_its_table()
  KVM: arm64: nvhe: Fix build with profile optimization
  KVM: selftests: Fix number of pages for memory slot in memslot_modification_stress_test
  KVM: arm64: selftests: Fix multiple versions of GIC creation
  KVM: arm64: Enable stack protection and branch profiling for VHE
  KVM: arm64: Limit stage2_apply_range() batch size to largest block
  KVM: arm64: Work out supported block level at compile time
2022-10-23 15:00:43 -07:00
Jason A. Donenfeld
ca4582c286 Revert "mfd: syscon: Remove repetition of the regmap_get_val_endian()"
This reverts commit 72a9585972.

It broke reboots on big-endian MIPS and MIPS64 malta QEMU instances,
which use the syscon driver.  Little-endian is not effected, which means
likely it's important to handle regmap_get_val_endian() in this function
after all.

Fixes: 72a9585972 ("mfd: syscon: Remove repetition of the regmap_get_val_endian()")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Lee Jones <lee@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-10-23 12:04:56 -07:00
Linus Torvalds
52826d3b2d kernel/utsname_sysctl.c: Fix hostname polling
Commit bfca3dd3d0 ("kernel/utsname_sysctl.c: print kernel arch") added
a new entry to the uts_kern_table[] array, but didn't update the
UTS_PROC_xyz enumerators of older entries, breaking anything that used
them.

Which is admittedly not many cases: it's really just the two uses of
uts_proc_notify() in kernel/sys.c.  But apparently journald-systemd
actually uses this to detect hostname changes.

Reported-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Fixes: bfca3dd3d0 ("kernel/utsname_sysctl.c: print kernel arch")
Link: https://lore.kernel.org/lkml/0c2b92a6-0f25-9538-178f-eee3b06da23f@secunet.com/
Link: https://linux-regtracking.leemhuis.info/regzbot/regression/0c2b92a6-0f25-9538-178f-eee3b06da23f@secunet.com/
Cc: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-10-23 12:01:01 -07:00
Linus Torvalds
a703852408 - Fix raw data handling when perf events are used in bpf
- Rework how SIGTRAPs get delivered to events to address a bunch of
   problems with it. Add a selftest for that too
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Merge tag 'perf_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - Fix raw data handling when perf events are used in bpf

 - Rework how SIGTRAPs get delivered to events to address a bunch of
   problems with it. Add a selftest for that too

* tag 'perf_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  bpf: Fix sample_flags for bpf_perf_event_output
  selftests/perf_events: Add a SIGTRAP stress test with disables
  perf: Fix missing SIGTRAPs
2022-10-23 10:14:45 -07:00
Linus Torvalds
c70055d8d9 - Adjust code to not trip up CFI
- Fix sched group cookie matching
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Merge tag 'sched_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:

 - Adjust code to not trip up CFI

 - Fix sched group cookie matching

* tag 'sched_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Introduce struct balance_callback to avoid CFI mismatches
  sched/core: Fix comparison in sched_group_cookie_match()
2022-10-23 10:10:55 -07:00
Linus Torvalds
6204a81aa3 - Fix ORC stack unwinding when GCOV is enabled
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Merge tag 'objtool_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fix from Borislav Petkov:

 - Fix ORC stack unwinding when GCOV is enabled

* tag 'objtool_urgent_for_v6.1_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/unwind/orc: Fix unreliable stack dump with gcov
2022-10-23 10:07:01 -07:00
Linus Torvalds
295dad10bf - Use the correct CPU capability clearing function on the error path in
Intel perf LBR
 
 - A CFI fix to ftrace along with a simplification
 
 - Adjust handling of zero capacity bit mask for resctrl cache allocation
   on AMD
 
 - A fix to the AMD microcode loader to attempt patch application on
   every logical thread
 
 - A couple of topology fixes to handle CPUID leaf 0x1f enumeration info
   properly
 
 - Drop a -mabi=ms compiler option check as both compilers support it now
   anyway
 
 - A couple of fixes to how the initial, statically allocated FPU buffer
   state is setup and its interaction with dynamic states at runtime
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Merge tag 'x86_urgent_for_v6.0_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:
 "As usually the case, right after a major release, the tip urgent
  branches accumulate a couple more fixes than normal. And here is the
  x86, a bit bigger, urgent pile.

   - Use the correct CPU capability clearing function on the error path
     in Intel perf LBR

   - A CFI fix to ftrace along with a simplification

   - Adjust handling of zero capacity bit mask for resctrl cache
     allocation on AMD

   - A fix to the AMD microcode loader to attempt patch application on
     every logical thread

   - A couple of topology fixes to handle CPUID leaf 0x1f enumeration
     info properly

   - Drop a -mabi=ms compiler option check as both compilers support it
     now anyway

   - A couple of fixes to how the initial, statically allocated FPU
     buffer state is setup and its interaction with dynamic states at
     runtime"

* tag 'x86_urgent_for_v6.0_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly
  perf/x86/intel/lbr: Use setup_clear_cpu_cap() instead of clear_cpu_cap()
  ftrace,kcfi: Separate ftrace_stub() and ftrace_stub_graph()
  x86/ftrace: Remove ftrace_epilogue()
  x86/resctrl: Fix min_cbm_bits for AMD
  x86/microcode/AMD: Apply the patch early on every logical thread
  x86/topology: Fix duplicated core ID within a package
  x86/topology: Fix multiple packages shown on a single-package system
  hwmon/coretemp: Handle large core ID value
  x86/Kconfig: Drop check for -mabi=ms for CONFIG_EFI_STUB
  x86/fpu: Exclude dynamic states from init_fpstate
  x86/fpu: Fix the init_fpstate size check with the actual size
  x86/fpu: Configure init_fpstate attributes orderly
2022-10-23 10:01:34 -07:00
Linus Torvalds
942e01ab90 io_uring-6.1-2022-10-22
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Merge tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux

Pull io_uring follow-up from Jens Axboe:
 "Currently the zero-copy has automatic fallback to normal transmit, and
  it was decided that it'd be cleaner to return an error instead if the
  socket type doesn't support it.

  Zero-copy does work with UDP and TCP, it's more of a future proofing
  kind of thing (eg for samba)"

* tag 'io_uring-6.1-2022-10-22' of git://git.kernel.dk/linux:
  io_uring/net: fail zc sendmsg when unsupported by socket
  io_uring/net: fail zc send when unsupported by socket
  net: flag sockets supporting msghdr originated zerocopy
2022-10-23 09:55:50 -07:00
Linus Torvalds
d47136c280 hwmon fixes for v6.1-rc2
- corsair-psu: Fix typo in USB id description, and add USB ID for new PSU
 
 - pwm-fan: Fix fan power handling when disabling fan control
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Merge tag 'hwmon-for-v6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - corsair-psu: Fix typo in USB id description, and add USB ID for new
   PSU

 - pwm-fan: Fix fan power handling when disabling fan control

* tag 'hwmon-for-v6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (corsair-psu) Add USB id of the new HX1500i psu
  hwmon: (pwm-fan) Explicitly switch off fan power when setting pwm1_enable to 0
  hwmon: (corsair-psu) fix typo in USB id description
2022-10-22 16:04:34 -07:00
Linus Torvalds
cda5d92054 RPM fix for qcom-cci, platform module alias for xiic, build warning fix
for mlxbf, typo fixes in comments
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Merge tag 'i2c-for-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "RPM fix for qcom-cci, platform module alias for xiic, build warning
  fix for mlxbf, typo fixes in comments"

* tag 'i2c-for-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: mlxbf: depend on ACPI; clean away ifdeffage
  i2c: fix spelling typos in comments
  i2c: qcom-cci: Fix ordering of pm_runtime_xx and i2c_add_adapter
  i2c: xiic: Add platform module alias
2022-10-22 15:59:46 -07:00
Linus Torvalds
fd79882ff2 pci-v6.1-fixes-2
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Merge tag 'pci-v6.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci fixes from Bjorn Helgaas:

 - Revert a simplification that broke pci-tegra due to a masking error

 - Update MAINTAINERS for Kishon's email address change and TI
   DRA7XX/J721E maintainer change

* tag 'pci-v6.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update Kishon's email address in PCI endpoint subsystem
  MAINTAINERS: Add Vignesh Raghavendra as maintainer of TI DRA7XX/J721E PCI driver
  Revert "PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro"
2022-10-22 15:52:36 -07:00
Linus Torvalds
3272eb1ace media fixes for v6.1-rc2
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Merge tag 'media/v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull missed media updates from Mauro Carvalho Chehab:
 "It seems I screwed-up my previous pull request: it ends up that only
  half of the media patches that were in linux-next got merged in -rc1.

  The script which creates the signed tags silently failed due to
  5.19->6.0 so it ended generating a tag with incomplete stuff.

  So here are the missing parts:

   - a DVB core security fix

   - lots of fixes and cleanups for atomisp staging driver

   - old drivers that are VB1 are being moved to staging to be
     deprecated

   - several driver updates - mostly for embedded systems, but there are
     also some things addressing issues with some PC webcams, in the UVC
     video driver"

* tag 'media/v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (163 commits)
  media: sun6i-csi: Move csi buffer definition to main header file
  media: sun6i-csi: Introduce and use video helper functions
  media: sun6i-csi: Add media ops with link notify callback
  media: sun6i-csi: Remove controls handler from the driver
  media: sun6i-csi: Register the media device after creation
  media: sun6i-csi: Pass and store csi device directly in video code
  media: sun6i-csi: Tidy up video code
  media: sun6i-csi: Tidy up v4l2 code
  media: sun6i-csi: Tidy up Kconfig
  media: sun6i-csi: Use runtime pm for clocks and reset
  media: sun6i-csi: Define and use variant to get module clock rate
  media: sun6i-csi: Always set exclusive module clock rate
  media: sun6i-csi: Tidy up platform code
  media: sun6i-csi: Refactor main driver data structures
  media: sun6i-csi: Define and use driver name and (reworked) description
  media: cedrus: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun8i-rotate: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun8i-di: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun4i-csi: Add a Kconfig dependency on RESET_CONTROLLER
  media: sun6i-csi: Add a Kconfig dependency on RESET_CONTROLLER
  ...
2022-10-22 15:30:15 -07:00
Pavel Begunkov
cc767e7c69 io_uring/net: fail zc sendmsg when unsupported by socket
The previous patch fails zerocopy send requests for protocols that don't
support it, do the same for zerocopy sendmsg.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0854e7bb4c3d810a48ec8b5853e2f61af36a0467.1666346426.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-10-22 08:43:03 -06:00
Pavel Begunkov
edf8143879 io_uring/net: fail zc send when unsupported by socket
If a protocol doesn't support zerocopy it will silently fall back to
copying. This type of behaviour has always been a source of troubles
so it's better to fail such requests instead.

Cc: <stable@vger.kernel.org> # 6.0
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2db3c7f16bb6efab4b04569cd16e6242b40c5cb3.1666346426.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-10-22 08:43:03 -06:00
Pavel Begunkov
e993ffe3da net: flag sockets supporting msghdr originated zerocopy
We need an efficient way in io_uring to check whether a socket supports
zerocopy with msghdr provided ubuf_info. Add a new flag into the struct
socket flags fields.

Cc: <stable@vger.kernel.org> # 6.0
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/3dafafab822b1c66308bb58a0ac738b1e3f53f74.1666346426.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-10-22 08:42:58 -06:00
Wilken Gottwalt
5619c66091 hwmon: (corsair-psu) Add USB id of the new HX1500i psu
Also update the documentation accordingly.

Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/Y0FghqQCHG/cX5Jz@monster.localdomain
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-10-22 06:59:12 -07:00
Paolo Bonzini
9aec606c16 tools: include: sync include/api/linux/kvm.h
Provide a definition of KVM_CAP_DIRTY_LOG_RING_ACQ_REL.

Fixes: 17601bfed9 ("KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option")
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-10-22 07:54:19 -04:00
Alexander Graf
1739c7017f KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
The KVM_X86_SET_MSR_FILTER ioctls contains a pointer in the passed in
struct which means it has a different struct size depending on whether
it gets called from 32bit or 64bit code.

This patch introduces compat code that converts from the 32bit struct to
its 64bit counterpart which then gets used going forward internally.
With this applied, 32bit QEMU can successfully set MSR bitmaps when
running on 64bit kernels.

Reported-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Fixes: 1a155254ff ("KVM: x86: Introduce MSR filtering")
Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-4-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-10-22 05:16:04 -04:00
Alexander Graf
2e3272bc17 KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
In the next patch we want to introduce a second caller to
set_msr_filter() which constructs its own filter list on the stack.
Refactor the original function so it takes it as argument instead of
reading it through copy_from_user().

Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-3-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-10-22 05:15:56 -04:00
Alexander Graf
ed51862f2f kvm: Add support for arch compat vm ioctls
We will introduce the first architecture specific compat vm ioctl in the
next patch. Add all necessary boilerplate to allow architectures to
override compat vm ioctls when necessary.

Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20221017184541.2658-2-graf@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-10-22 05:15:23 -04:00
Paolo Bonzini
21e6075974 KVM/riscv fixes for 6.1, take #1
- Fix compilation without RISCV_ISA_ZICBOM
 - Fix kvm_riscv_vcpu_timer_pending() for Sstc
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Merge tag 'kvm-riscv-fixes-6.1-1' of https://github.com/kvm-riscv/linux into HEAD

KVM/riscv fixes for 6.1, take #1

- Fix compilation without RISCV_ISA_ZICBOM
- Fix kvm_riscv_vcpu_timer_pending() for Sstc
2022-10-22 03:33:58 -04:00
Paolo Bonzini
ebccb53e93 KVM/arm64 fixes for 6.1, take #2
- Fix a bug preventing restoring an ITS containing mappings
   for very large and very sparse device topology
 
 - Work around a relocation handling error when compiling
   the nVHE object with profile optimisation
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Merge tag 'kvmarm-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.1, take #2

- Fix a bug preventing restoring an ITS containing mappings
  for very large and very sparse device topology

- Work around a relocation handling error when compiling
  the nVHE object with profile optimisation
2022-10-22 03:33:26 -04:00
Paolo Bonzini
5834816829 KVM/arm64 fixes for 6.1, take #1
- Fix for stage-2 invalidation holding the VM MMU lock
   for too long by limiting the walk to the largest
   block mapping size
 
 - Enable stack protection and branch profiling for VHE
 
 - Two selftest fixes
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Merge tag 'kvmarm-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.1, take #1

- Fix for stage-2 invalidation holding the VM MMU lock
  for too long by limiting the walk to the largest
  block mapping size

- Enable stack protection and branch profiling for VHE

- Two selftest fixes
2022-10-22 03:32:23 -04:00
Linus Torvalds
4da34b7d17 Thermal control fix for 6.1-rc2
Fix the control CPU selection in the intel_powerclamp thermal driver.
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Merge tag 'thermal-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "This fixes the control CPU selection in the intel_powerclamp thermal
  driver"

* tag 'thermal-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel_powerclamp: Use first online CPU as control_cpu
2022-10-21 18:26:00 -07:00
Linus Torvalds
20df096147 Power management fixes for 6.1-rc2
- Fix module loading in the Tegra124 cpufreq driver (Jon Hunter).
 
  - Fix memory leak and update to read-only region in the qcom
    cpufreq driver (Fabien Parent).
 
  - Miscellaneous minor cleanups to cpufreq drivers (Fabien Parent,
    Yang Yingliang).
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Merge tag 'pm-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix some issues and clean up code in ARM cpufreq drivers.

  Specifics:

   - Fix module loading in the Tegra124 cpufreq driver (Jon Hunter)

   - Fix memory leak and update to read-only region in the qcom cpufreq
     driver (Fabien Parent)

   - Miscellaneous minor cleanups to cpufreq drivers (Fabien Parent,
     Yang Yingliang)"

* tag 'pm-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: sun50i: Switch to use dev_err_probe() helper
  cpufreq: qcom-nvmem: Switch to use dev_err_probe() helper
  cpufreq: imx6q: Switch to use dev_err_probe() helper
  cpufreq: dt: Switch to use dev_err_probe() helper
  cpufreq: qcom: remove unused parameter in function definition
  cpufreq: qcom: fix writes in read-only memory region
  cpufreq: qcom: fix memory leak in error path
  cpufreq: tegra194: Fix module loading
2022-10-21 18:19:42 -07:00
Linus Torvalds
9d6e681d33 ACPI fixes for 6.1-rc2
- Add missing device reference counting to acpi_get_pci_dev() after
    changing it recently (Rafael Wysocki).
 
  - Fix resource list walk in acpi_dma_get_range() (Robin Murphy).
 
  - Add IRQ override quirk for LENOVO IdeaPad and extend the IRQ
    override warning message (Jiri Slaby).
 
  - Fix integer overflow in ghes_estatus_pool_init() (Ashish Kalra).
 
  - Fix multiple error records handling in one of the ACPI extlog driver
    code paths (Tony Luck).
 
  - Prune DSDT override documentation from index after dropping it (Bagas
    Sanjaya).
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Merge tag 'acpi-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix issues introduced during this merge window (ACPI/PCI, device
  enumeration and documentation) and some other ones found recently.

  Specifics:

   - Add missing device reference counting to acpi_get_pci_dev() after
     changing it recently (Rafael Wysocki)

   - Fix resource list walk in acpi_dma_get_range() (Robin Murphy)

   - Add IRQ override quirk for LENOVO IdeaPad and extend the IRQ
     override warning message (Jiri Slaby)

   - Fix integer overflow in ghes_estatus_pool_init() (Ashish Kalra)

   - Fix multiple error records handling in one of the ACPI extlog
     driver code paths (Tony Luck)

   - Prune DSDT override documentation from index after dropping it
     (Bagas Sanjaya)"

* tag 'acpi-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: scan: Fix DMA range assignment
  ACPI: PCI: Fix device reference counting in acpi_get_pci_dev()
  ACPI: resource: note more about IRQ override
  ACPI: resource: do IRQ override on LENOVO IdeaPad
  ACPI: extlog: Handle multiple records
  ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()
  Documentation: ACPI: Prune DSDT override documentation from index
2022-10-21 18:08:30 -07:00
Linus Torvalds
ec4cf5dbb1 First batch of EFI fixes for v6.1
- A pair of fixes for the EFI variable store refactor that landed in
   v6.0
 - A couple of fixes for issue that were introduced during the merge
   window
 - Back out some changes related to EFI zboot signing - we'll add a
   better solution for this during the next cycle
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Merge tag 'efi-fixes-for-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI fixes from Ard Biesheuvel:

 - fixes for the EFI variable store refactor that landed in v6.0

 - fixes for issues that were introduced during the merge window

 - back out some changes related to EFI zboot signing - we'll add a
   better solution for this during the next cycle

* tag 'efi-fixes-for-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: runtime: Don't assume virtual mappings are missing if VA == PA == 0
  efi: libstub: Fix incorrect payload size in zboot header
  efi: libstub: Give efi_main() asmlinkage qualification
  efi: efivars: Fix variable writes without query_variable_store()
  efi: ssdt: Don't free memory if ACPI table was loaded successfully
  efi: libstub: Remove zboot signing from build options
2022-10-21 18:02:36 -07:00
Linus Torvalds
e97eace635 IOMMU Fixes for Linux v6.1-rc1:
Including:
 
 	- Intel VT-d fixes from Lu Baolu:
 	  - Fix a lockdep splat issue in intel_iommu_init().
 	  - Allow NVS regions to pass RMRR check.
 	  - Domain cleanup in error path.
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Merge tag 'iommu-fixes-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:
 "Intel VT-d fixes:

   - Fix a lockdep splat issue in intel_iommu_init()

   - Allow NVS regions to pass RMRR check

   - Domain cleanup in error path"

* tag 'iommu-fixes-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Clean up si_domain in the init_dmars() error path
  iommu/vt-d: Allow NVS regions in arch_rmrr_sanity_check()
  iommu/vt-d: Use rcu_lock in get_resv_regions
  iommu: Add gfp parameter to iommu_alloc_resv_region
2022-10-21 17:47:39 -07:00
Linus Torvalds
334fe5d3a9 for-linus-2022102101
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Merge tag 'for-linus-2022102101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID fixes from Benjamin Tissoires:

 - a 12 year old bug fix for the Apple Magic Trackpad v1 (José Expósito)

 - a fix for a potential crash on removal of the Playstation controllers
   (Roderick Colenbrander)

 - a few new device IDs and device-specific quirks, most notably support
   of the new Playstation DualSense Edge controller

* tag 'for-linus-2022102101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: lenovo: Make array tp10ubkbd_led static const
  HID: saitek: add madcatz variant of MMO7 mouse device ID
  HID: playstation: support updated DualSense rumble mode.
  HID: playstation: add initial DualSense Edge controller support
  HID: playstation: stop DualSense output work on remove.
  HID: magicmouse: Do not set BTN_MOUSE on double report
2022-10-21 17:41:57 -07:00
Linus Torvalds
bd8e963412 12 cifs/smb3 fixes, half for stable
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Merge tag '6.1-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:

 - memory leak fixes

 - fixes for directory leases, including an important one which fixes a
   problem noticed by git functional tests

 - fixes relating to missing free_xid calls (helpful for
   tracing/debugging of entry/exit into cifs.ko)

 - a multichannel fix

 - a small cleanup fix (use of list_move instead of list_del/list_add)

* tag '6.1-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update internal module number
  cifs: fix memory leaks in session setup
  cifs: drop the lease for cached directories on rmdir or rename
  smb3: interface count displayed incorrectly
  cifs: Fix memory leak when build ntlmssp negotiate blob failed
  cifs: set rc to -ENOENT if we can not get a dentry for the cached dir
  cifs: use LIST_HEAD() and list_move() to simplify code
  cifs: Fix xid leak in cifs_get_file_info_unix()
  cifs: Fix xid leak in cifs_ses_add_channel()
  cifs: Fix xid leak in cifs_flock()
  cifs: Fix xid leak in cifs_copy_file_range()
  cifs: Fix xid leak in cifs_create()
2022-10-21 16:01:53 -07:00
Linus Torvalds
022c028f4c Fixes:
- Fixes for patches merged in v6.1
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Merge tag 'nfsd-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:
 "Fixes for patches merged in v6.1"

* tag 'nfsd-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  nfsd: ensure we always call fh_verify_error tracepoint
  NFSD: unregister shrinker when nfsd_init_net() fails
2022-10-21 15:51:30 -07:00
Chang S. Bae
471f0aa7fa x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly
When an extended state component is not present in fpstate, but in init
state, the function copies from init_fpstate via copy_feature().

But, dynamic states are not present in init_fpstate because of all-zeros
init states. Then retrieving them from init_fpstate will explode like this:

 BUG: kernel NULL pointer dereference, address: 0000000000000000
 ...
 RIP: 0010:memcpy_erms+0x6/0x10
  ? __copy_xstate_to_uabi_buf+0x381/0x870
  fpu_copy_guest_fpstate_to_uabi+0x28/0x80
  kvm_arch_vcpu_ioctl+0x14c/0x1460 [kvm]
  ? __this_cpu_preempt_check+0x13/0x20
  ? vmx_vcpu_put+0x2e/0x260 [kvm_intel]
  kvm_vcpu_ioctl+0xea/0x6b0 [kvm]
  ? kvm_vcpu_ioctl+0xea/0x6b0 [kvm]
  ? __fget_light+0xd4/0x130
  __x64_sys_ioctl+0xe3/0x910
  ? debug_smp_processor_id+0x17/0x20
  ? fpregs_assert_state_consistent+0x27/0x50
  do_syscall_64+0x3f/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd

Adjust the 'mask' to zero out the userspace buffer for the features that
are not available both from fpstate and from init_fpstate.

The dynamic features depend on the compacted XSAVE format. Ensure it is
enabled before reading XCOMP_BV in init_fpstate.

Fixes: 2308ee57d9 ("x86/fpu/amx: Enable the AMX feature in 64-bit mode")
Reported-by: Yuan Yao <yuan.yao@intel.com>
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Tested-by: Yuan Yao <yuan.yao@intel.com>
Link: https://lore.kernel.org/lkml/BYAPR11MB3717EDEF2351C958F2C86EED95259@BYAPR11MB3717.namprd11.prod.outlook.com/
Link: https://lkml.kernel.org/r/20221021185844.13472-1-chang.seok.bae@intel.com
2022-10-21 15:22:09 -07:00
Linus Torvalds
ed5377958c SCSI fixes on 20221021
Two small changes, one in the lpfc driver and the other in the core.
 The core change is an additional footgun guard which prevents users
 from writing the wrong state to sysfs and causing a hang.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two small changes, one in the lpfc driver and the other in the core.

  The core change is an additional footgun guard which prevents users
  from writing the wrong state to sysfs and causing a hang"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: lpfc: Fix memory leak in lpfc_create_port()
  scsi: core: Restrict legal sdev_state transitions via sysfs
2022-10-21 15:19:43 -07:00
Linus Torvalds
d4b7332eef block-6.1-2022-10-20
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Merge tag 'block-6.1-2022-10-20' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
      - fix nvme-hwmon for DMA non-cohehrent architectures (Serge Semin)
      - add a nvme-hwmong maintainer (Christoph Hellwig)
      - fix error pointer dereference in error handling (Dan Carpenter)
      - fix invalid memory reference in nvmet_subsys_attr_qid_max_show
        (Daniel Wagner)
      - don't limit the DMA segment size in nvme-apple (Russell King)
      - fix workqueue MEM_RECLAIM flushing dependency (Sagi Grimberg)
      - disable write zeroes on various Kingston SSDs (Xander Li)

 - fix a memory leak with block device tracing (Ye)

 - flexible-array fix for ublk (Yushan)

 - document the ublk recovery feature from this merge window
   (ZiyangZhang)

 - remove dead bfq variable in struct (Yuwei)

 - error handling rq clearing fix (Yu)

 - add an IRQ safety check for the cached bio freeing (Pavel)

 - drbd bio cloning fix (Christoph)

* tag 'block-6.1-2022-10-20' of git://git.kernel.dk/linux:
  blktrace: remove unnessary stop block trace in 'blk_trace_shutdown'
  blktrace: fix possible memleak in '__blk_trace_remove'
  blktrace: introduce 'blk_trace_{start,stop}' helper
  bio: safeguard REQ_ALLOC_CACHE bio put
  block, bfq: remove unused variable for bfq_queue
  drbd: only clone bio if we have a backing device
  ublk_drv: use flexible-array member instead of zero-length array
  nvmet: fix invalid memory reference in nvmet_subsys_attr_qid_max_show
  nvmet: fix workqueue MEM_RECLAIM flushing dependency
  nvme-hwmon: kmalloc the NVME SMART log buffer
  nvme-hwmon: consistently ignore errors from nvme_hwmon_init
  nvme: add Guenther as nvme-hwmon maintainer
  nvme-apple: don't limit DMA segement size
  nvme-pci: disable write zeroes on various Kingston SSD
  nvme: fix error pointer dereference in error handling
  Documentation: document ublk user recovery feature
  blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()
2022-10-21 15:14:14 -07:00
Linus Torvalds
294e73ffb0 io_uring-6.1-2022-10-20
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Merge tag 'io_uring-6.1-2022-10-20' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a potential memory leak in the error handling path of io-wq setup
   (Rafael)

 - Kill an errant debug statement that got added in this release (me)

 - Fix an oops with an invalid direct descriptor with IORING_OP_MSG_RING
   (Harshit)

 - Remove unneeded FFS_SCM flagging (Pavel)

 - Remove polling off the exit path (Pavel)

 - Move out direct descriptor debug check to the cleanup path (Pavel)

 - Use the proper helper rather than open-coding cached request get
   (Pavel)

* tag 'io_uring-6.1-2022-10-20' of git://git.kernel.dk/linux:
  io-wq: Fix memory leak in worker creation
  io_uring/msg_ring: Fix NULL pointer dereference in io_msg_send_fd()
  io_uring/rw: remove leftover debug statement
  io_uring: don't iopoll from io_ring_ctx_wait_and_kill()
  io_uring: reuse io_alloc_req()
  io_uring: kill hot path fixed file bitmap debug checks
  io_uring: remove FFS_SCM
2022-10-21 15:09:10 -07:00
Linus Torvalds
1d61754caa xen: branch for v6.1-rc2
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Merge tag 'for-linus-6.1-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Just two fixes for the new 'virtio with grants' feature"

* tag 'for-linus-6.1-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/virtio: Convert PAGE_SIZE/PAGE_SHIFT/PFN_UP to Xen counterparts
  xen/virtio: Handle cases when page offset > PAGE_SIZE properly
2022-10-21 14:43:09 -07:00
Linus Torvalds
0de0b76837 selinux/stable-6.1 PR 20221020
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Merge tag 'selinux-pr-20221020' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux fix from Paul Moore:
 "A small SELinux fix for a GFP_KERNEL allocation while a spinlock is
  held.

  The patch, while still fairly small, is a bit larger than one might
  expect from a simple s/GFP_KERNEL/GFP_ATOMIC/ conversion because we
  added support for the function to be called with different gfp flags
  depending on the context, preserving GFP_KERNEL for those cases that
  can safely sleep"

* tag 'selinux-pr-20221020' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context()
2022-10-21 14:33:36 -07:00
Linus Torvalds
440b7895c9 17 hotfixes, mainly for MM. 5 are cc:stable and the remainder address
post-6.0 issues.
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Merge tag 'mm-hotfixes-stable-2022-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morron:
 "Seventeen hotfixes, mainly for MM.

  Five are cc:stable and the remainder address post-6.0 issues"

* tag 'mm-hotfixes-stable-2022-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  nouveau: fix migrate_to_ram() for faulting page
  mm/huge_memory: do not clobber swp_entry_t during THP split
  hugetlb: fix memory leak associated with vma_lock structure
  mm/page_alloc: reduce potential fragmentation in make_alloc_exact()
  mm: /proc/pid/smaps_rollup: fix maple tree search
  mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
  mm/mmap: fix MAP_FIXED address return on VMA merge
  mm/mmap.c: __vma_adjust(): suppress uninitialized var warning
  mm/mmap: undo ->mmap() when mas_preallocate() fails
  init: Kconfig: fix spelling mistake "satify" -> "satisfy"
  ocfs2: clear dinode links count in case of error
  ocfs2: fix BUG when iput after ocfs2_mknod fails
  gcov: support GCC 12.1 and newer compilers
  zsmalloc: zs_destroy_pool: add size_class NULL check
  mm/mempolicy: fix mbind_range() arguments to vma_merge()
  mailmap: update email for Qais Yousef
  mailmap: update Dan Carpenter's email address
2022-10-21 12:33:03 -07:00
Linus Torvalds
ce3d90a877 Tracing/tools updates for 6.1-rc1:
- Make dot2c generate monitor's automata definition static
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Merge tag 'trace-tools-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tool update from Steven Rostedt:

 - Make dot2c generate monitor's automata definition static

* tag 'trace-tools-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv/dot2c: Make automaton definition static
2022-10-21 12:29:52 -07:00
Linus Torvalds
4f1e0c18bc linux-watchdog 6.1-rc2 tag
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Merge tag 'linux-watchdog-6.1-rc2' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - Add tracing events for the most common watchdog events

* tag 'linux-watchdog-6.1-rc2' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: Add tracing events for the most usual watchdog events
2022-10-21 12:25:39 -07:00
Rafael J. Wysocki
3f8deab61e Merge branches 'acpi-scan', 'acpi-resource', 'acpi-apei', 'acpi-extlog' and 'acpi-docs'
Merge assorted ACPI fixes for 6.1-rc2:

 - Fix resource list walk in acpi_dma_get_range() (Robin Murphy).

 - Add IRQ override quirk for LENOVO IdeaPad and extend the IRQ
   override warning message (Jiri Slaby).

 - Fix integer overflow in ghes_estatus_pool_init() (Ashish Kalra).

 - Fix multiple error records handling in one of the ACPI extlog driver
   code paths (Tony Luck).

 - Prune DSDT override documentation from index after dropping it (Bagas
   Sanjaya).

* acpi-scan:
  ACPI: scan: Fix DMA range assignment

* acpi-resource:
  ACPI: resource: note more about IRQ override
  ACPI: resource: do IRQ override on LENOVO IdeaPad

* acpi-apei:
  ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()

* acpi-extlog:
  ACPI: extlog: Handle multiple records

* acpi-docs:
  Documentation: ACPI: Prune DSDT override documentation from index
2022-10-21 20:07:41 +02:00
Chen Zhongjin
230db82413 x86/unwind/orc: Fix unreliable stack dump with gcov
When a console stack dump is initiated with CONFIG_GCOV_PROFILE_ALL
enabled, show_trace_log_lvl() gets out of sync with the ORC unwinder,
causing the stack trace to show all text addresses as unreliable:

  # echo l > /proc/sysrq-trigger
  [  477.521031] sysrq: Show backtrace of all active CPUs
  [  477.523813] NMI backtrace for cpu 0
  [  477.524492] CPU: 0 PID: 1021 Comm: bash Not tainted 6.0.0 #65
  [  477.525295] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-1.fc36 04/01/2014
  [  477.526439] Call Trace:
  [  477.526854]  <TASK>
  [  477.527216]  ? dump_stack_lvl+0xc7/0x114
  [  477.527801]  ? dump_stack+0x13/0x1f
  [  477.528331]  ? nmi_cpu_backtrace.cold+0xb5/0x10d
  [  477.528998]  ? lapic_can_unplug_cpu+0xa0/0xa0
  [  477.529641]  ? nmi_trigger_cpumask_backtrace+0x16a/0x1f0
  [  477.530393]  ? arch_trigger_cpumask_backtrace+0x1d/0x30
  [  477.531136]  ? sysrq_handle_showallcpus+0x1b/0x30
  [  477.531818]  ? __handle_sysrq.cold+0x4e/0x1ae
  [  477.532451]  ? write_sysrq_trigger+0x63/0x80
  [  477.533080]  ? proc_reg_write+0x92/0x110
  [  477.533663]  ? vfs_write+0x174/0x530
  [  477.534265]  ? handle_mm_fault+0x16f/0x500
  [  477.534940]  ? ksys_write+0x7b/0x170
  [  477.535543]  ? __x64_sys_write+0x1d/0x30
  [  477.536191]  ? do_syscall_64+0x6b/0x100
  [  477.536809]  ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [  477.537609]  </TASK>

This happens when the compiled code for show_stack() has a single word
on the stack, and doesn't use a tail call to show_stack_log_lvl().
(CONFIG_GCOV_PROFILE_ALL=y is the only known case of this.)  Then the
__unwind_start() skip logic hits an off-by-one bug and fails to unwind
all the way to the intended starting frame.

Fix it by reverting the following commit:

  f1d9a2abff ("x86/unwind/orc: Don't skip the first frame for inactive tasks")

The original justification for that commit no longer exists.  That
original issue was later fixed in a different way, with the following
commit:

  f2ac57a4c4 ("x86/unwind/orc: Fix inactive tasks with stack pointer in %sp on GCC 10 compiled kernels")

Fixes: f1d9a2abff ("x86/unwind/orc: Don't skip the first frame for inactive tasks")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
[jpoimboe: rewrite commit log]
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
2022-10-21 14:56:42 +02:00
Ard Biesheuvel
37926f9630 efi: runtime: Don't assume virtual mappings are missing if VA == PA == 0
The generic EFI stub can be instructed to avoid SetVirtualAddressMap(),
and simply run with the firmware's 1:1 mapping. In this case, it
populates the virtual address fields of the runtime regions in the
memory map with the physical address of each region, so that the mapping
code has to be none the wiser. Only if SetVirtualAddressMap() fails, the
virtual addresses are wiped and the kernel code knows that the regions
cannot be mapped.

However, wiping amounts to setting it to zero, and if a runtime region
happens to live at physical address 0, its valid 1:1 mapped virtual
address could be mistaken for a wiped field, resulting on loss of access
to the EFI services at runtime.

So let's only assume that VA == 0 means 'no runtime services' if the
region in question does not live at PA 0x0.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-10-21 11:09:41 +02:00