Until now, destroying a protected guest was an entirely synchronous
operation that could potentially take a very long time, depending on
the size of the guest, due to the time needed to clean up the address
space from protected pages.

This patch implements an asynchronous destroy mechanism, that allows a
protected guest to reboot significantly faster than previously.

This is achieved by clearing the pages of the old guest in background.
In case of reboot, the new guest will be able to run in the same
address space almost immediately.

The old protected guest is then only destroyed when all of its memory
has been destroyed or otherwise made non protected.

Two new PV commands are added for the KVM_S390_PV_COMMAND ioctl:

KVM_PV_ASYNC_CLEANUP_PREPARE: set aside the current protected VM for
later asynchronous teardown. The current KVM VM will then continue
immediately as non-protected. If a protected VM had already been
set aside for asynchronous teardown, but without starting the teardown
process, this call will fail. There can be at most one VM set aside at
any time. Once it is set aside, the protected VM only exists in the
context of the Ultravisor, it is not associated with the KVM VM
anymore. Its protected CPUs have already been destroyed, but not its
memory. This command can be issued again immediately after starting
KVM_PV_ASYNC_CLEANUP_PERFORM, without having to wait for completion.

KVM_PV_ASYNC_CLEANUP_PERFORM: tears down the protected VM previously
set aside using KVM_PV_ASYNC_CLEANUP_PREPARE. Ideally the
KVM_PV_ASYNC_CLEANUP_PERFORM PV command should be issued by userspace
from a separate thread. If a fatal signal is received (or if the
process terminates naturally), the command will terminate immediately
without completing. All protected VMs whose teardown was interrupted
will be put in the need_cleanup list. The rest of the normal KVM
teardown process will take care of properly cleaning up all remaining
protected VMs, including the ones on the need_cleanup list.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20221111170632.77622-2-imbrenda@linux.ibm.com
Message-Id: <20221111170632.77622-2-imbrenda@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

swiotlb passes virtual addresses to set_memory_encrypted() and
set_memory_decrypted(), but uv_remove_shared() and uv_set_shared()
expect physical addresses. This currently works, because virtual
and physical addresses are the same.

Add virt_to_phys() to resolve the virtual-physical confusion.
Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Link: https://lore.kernel.org/r/20221107121221.156274-2-nrb@linux.ibm.com
Message-Id: <20221107121221.156274-2-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

pin_guest_page() used page_to_virt() to calculate the hpa of the pinned
page. This currently works, because virtual and physical addresses are
the same. Use page_to_phys() instead to resolve the virtual-real address
confusion.

One caller of pin_guest_page() actually expected the hpa to be a hva, so
add the missing phys_to_virt() conversion here.
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Link: https://lore.kernel.org/r/20221025082039.117372-2-nrb@linux.ibm.com
Message-Id: <20221025082039.117372-2-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

Fix virtual vs physical address confusion (which currently are the same).
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20221020143159.294605-6-nrb@linux.ibm.com
Message-Id: <20221020143159.294605-6-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

All callers of the sida_origin() macro actually expected a virtual
address, so rename it to sida_addr() and hand out a virtual address.

At some places, the macro wasn't used, potentially creating problems
if the sida size ever becomes nonzero (not currently the case), so let's
start using it everywhere now while at it.
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20221020143159.294605-5-nrb@linux.ibm.com
Message-Id: <20221020143159.294605-5-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

Fix virtual vs physical address confusion (which currently are the same).
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20221020143159.294605-4-nrb@linux.ibm.com
Message-Id: <20221020143159.294605-4-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

Fix virtual vs physical address confusion (which currently are the
same).

sie_block is accessed in entry.S and passed it to hardware, which is why
both its physical and virtual address are needed. To avoid every caller
having to do the virtual-physical conversion, add a new function sie64a()
which converts the virtual address to physical.
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20221020143159.294605-3-nrb@linux.ibm.com
Message-Id: <20221020143159.294605-3-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

Fix virtual vs physical address confusion (which currently are the same).
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20221020143159.294605-2-nrb@linux.ibm.com
Message-Id: <20221020143159.294605-2-nrb@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

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

This reverts commit 72a95859.

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: 72a95859 ("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>

Commit bfca3dd3 ("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: bfca3dd3 ("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>

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

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()

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

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

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

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

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

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"

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
  ...

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.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

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.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

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.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

Also update the documentation accordingly.
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/Y0FghqQCHG/cX5Jz@monster.localdomainSigned-off-by: Guenter Roeck <linux@roeck-us.net>

Provide a definition of KVM_CAP_DIRTY_LOG_RING_ACQ_REL.

Fixes: 17601bfe ("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>

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: 1a155254 ("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>

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>

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>

KVM/riscv fixes for 6.1, take #1

- Fix compilation without RISCV_ISA_ZICBOM
- Fix kvm_riscv_vcpu_timer_pending() for Sstc

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

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

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

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

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

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

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

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

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()

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