It's just getting an integer from userspace, installing a file, then
copying the output direct descriptor back. No need to use the full
copy_to/from_user() for that.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring task work dispatch makes an indirect call to struct io_kiocb's
io_task_work.func field to allow running arbitrary task work functions.
In the uring_cmd case, this calls io_uring_cmd_work(), which immediately
makes another indirect call to struct io_uring_cmd's task_work_cb field.
Change the uring_cmd task work callbacks to functions whose signatures
match io_req_tw_func_t. Add a function io_uring_cmd_from_tw() to convert
from the task work's struct io_tw_req argument to struct io_uring_cmd *.
Define a constant IO_URING_CMD_TASK_WORK_ISSUE_FLAGS to avoid
manufacturing issue_flags in the uring_cmd task work callbacks. Now
uring_cmd task work dispatch makes a single indirect call to the
uring_cmd implementation's callback. This also allows removing the
task_work_cb field from struct io_uring_cmd, freeing up 8 bytes for
future storage.
Since fuse_uring_send_in_task() now has access to the io_tw_token_t,
check its cancel field directly instead of relying on the
IO_URING_F_TASK_DEAD issue flag.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In preparation for uring_cmd implementations to implement functions
with the io_req_tw_func_t signature, introduce a wrapper struct
io_tw_req to hide the struct io_kiocb * argument. The intention is for
only the io_uring core to access the inner struct io_kiocb *. uring_cmd
implementations should instead call a helper from io_uring/cmd.h to
convert struct io_tw_req to struct io_uring_cmd *.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_fallback_req_func() calls io_should_terminate_tw() on each req's ctx.
But since the reqs all come from the ctx's fallback_llist, req->ctx will
be ctx for all of the reqs. Therefore, compute ts.cancel as
io_should_terminate_tw(ctx) just once, outside the loop.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The mixed SQE support assumes that userspace always passes valid data,
that is not the case. Validate the opcode properly before indexing
the io_issue_defs[] array, and pass it through the nospec indexing
as well as it's a user valid indexing a kernel array.
Fixes: 1cba30bf9f ("io_uring: add support for IORING_SETUP_SQE_MIXED")
Reported-by: syzbot+b883b008a0b1067d5833@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The sq_head indicates the index directly in the submission queue when
the IORING_SETUP_NO_SQARRAY option is used, so use that instead of
skipping showing the entries.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_submit_sqes() shouldn't be stepping into its main loop when there is
nothing to submit, i.e. nr=0. Fix 0 submission queue entries checks,
which should follow after all user input truncations.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Normal rings support 64b SQEs for posting submissions, while certain
features require the ring to be configured with IORING_SETUP_SQE128, as
they need to convey more information per submission. This, in turn,
makes ALL the SQEs be 128b in size. This is somewhat wasteful and
inefficient, particularly when only certain SQEs need to be of the
bigger variant.
This adds support for setting up a ring with mixed SQE sizes, using
IORING_SETUP_SQE_MIXED. When setup in this mode, SQEs posted to the ring
may be either 64b or 128b in size. If a SQE is 128b in size, then opcode
will be set to a variante to indicate that this is the case. Any other
non-128b opcode will assume the SQ's default size.
SQEs on these types of mixed rings may also utilize NOP with skip
success set. This can happen if the ring is one (small) SQE entry away
from wrapping, and an attempt is made to get a 128b SQE. As SQEs must be
contiguous in the SQ ring, a 128b SQE cannot wrap the ring. For this
case, a single NOP SQE should be inserted with the SKIP_SUCCESS flag
set. The kernel will process this as a normal NOP and without posting a
CQE.
Signed-off-by: Keith Busch <kbusch@kernel.org>
[axboe: {} style fix and assign sqe before opcode read]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_register_mem_region() can try to remove a region right after
publishing it. This non-atomicity is annoying. Do it in two steps
similar to io_register_mem_region(), create memory first and publish it
once the rest of the handling is done. Remove now unused
io_create_region_mmap_safe(), which was assumed to be a temporary
solution from day one.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
kbuf ring is published by io_buffer_add_list(), which correctly protects
with mmap_lock, there is no need to use io_create_region_mmap_safe()
before as the region is not yet exposed to the userspace via mmap.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_free_region() tolerates empty regions but there is no reason to that
either. If the first io_create_region() in io_register_resize_rings()
fails, just return the error without attempting to clean it up.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_register_free_rings() doesn't use its "struct io_uring_params"
parameter, remove it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_create_region_mmap_safe() is only needed when the created region is
exposed to userspace code via mmap. io_register_resize_rings() creates
them locally on stack, so the no mmap_safe version of the helper is
enough.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
It's a good practice to validate parameters before doing any heavy stuff
like queue allocations. Do that for io_allocate_scq_urings().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
A minor cleanup precomputing the sq size first instead of branching
array_size() in io_allocate_scq_urings().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Use it everywhere that the wait_queue_entry is removed from the head,
and be a bit more cautious in zeroing out iw->head whenever the entry is
removed from the list.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Both callers of this need the entry potentially removed, so shift the
removal into the completion side and kill it from the two callers.
While at it, add a helper for removing the wait_queue_entry based
on the passed in io_kiocb.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Rather than do per-tw checking, which needs to dip into the task_struct
for checking flags, do it upfront before running task_work. This places
a 'cancel' member in io_tw_token_t, which is assigned before running
task_work for that given ctx.
This is both more efficient in doing it upfront rather than for every
task_work, and it means that io_should_terminate_tw() can be made
private in io_uring.c rather than need to be called by various
callbacks of task_work.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
have correct lost idle time accounting
- Stop the deadline server task before a CPU goes offline
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Merge tag 'sched_urgent_for_v6.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Make sure the check for lost pelt idle time is done unconditionally
to have correct lost idle time accounting
- Stop the deadline server task before a CPU goes offline
* tag 'sched_urgent_for_v6.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix pelt lost idle time detection
sched/deadline: Stop dl_server before CPU goes offline
- Move the uprobe optimization to a better location logically
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Merge tag 'perf_urgent_for_v6.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Make sure perf reporting works correctly in setups using
overlayfs or FUSE
- Move the uprobe optimization to a better location logically
* tag 'perf_urgent_for_v6.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix MMAP2 event device with backing files
perf/core: Fix MMAP event path names with backing files
perf/core: Fix address filter match with backing files
uprobe: Move arch_uprobe_optimize right after handlers execution
remaining from previous boots
- Add a missing barrier in the TLB flushing code to prevent erroneously not
flushing a TLB generation
- Make sure cpa_flush() does not overshoot when computing the end range of
a flush region
- Fix resctrl bandwidth counting on AMD systems when the amount of monitoring
groups created exceeds the number the hardware can track
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Merge tag 'x86_urgent_for_v6.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Reset the why-the-system-rebooted register on AMD to avoid stale bits
remaining from previous boots
- Add a missing barrier in the TLB flushing code to prevent erroneously
not flushing a TLB generation
- Make sure cpa_flush() does not overshoot when computing the end range
of a flush region
- Fix resctrl bandwidth counting on AMD systems when the amount of
monitoring groups created exceeds the number the hardware can track
* tag 'x86_urgent_for_v6.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU/AMD: Prevent reset reasons from being retained across reboot
x86/mm: Fix SMP ordering in switch_mm_irqs_off()
x86/mm: Fix overflow in __cpa_addr()
x86/resctrl: Fix miscount of bandwidth event when reactivating previously unavailable RMID
'rustfmt', by default, formats imports in a way that is prone to
conflicts while merging and rebasing, since in some cases it condenses
several items into the same line.
Document in our guidelines that we will handle this for the moment with
the trailing empty comment workaround and make the tree 'rustfmt'-clean
again.
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Merge tag 'rust-rustfmt' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rustfmt fixes from Miguel Ojeda:
"Rust 'rustfmt' cleanup
'rustfmt', by default, formats imports in a way that is prone to
conflicts while merging and rebasing, since in some cases it condenses
several items into the same line.
Document in our guidelines that we will handle this for the moment
with the trailing empty comment workaround and make the tree
'rustfmt'-clean again"
* tag 'rust-rustfmt' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: bitmap: fix formatting
rust: cpufreq: fix formatting
rust: alloc: employ a trailing comment to keep vertical layout
docs: rust: add section on imports formatting
If possible, could you still pick this change for v6.18 [1]? The change in
question corrects the state transitions for ARM FF-A to match the spec and
how tpm_crb behaves on other platforms.
[1] https://lore.kernel.org/linux-integrity/aPN59bwcUrieMACf@kernel.org/
BR, Jarkko
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Merge tag 'tpmdd-next-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm fix from Jarkko Sakkinen:
"Correct the state transitions for ARM FF-A to match the spec and how
tpm_crb behaves on other platforms"
* tag 'tpmdd-next-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm_crb: Add idle support for the Arm FF-A start method
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Merge tag 'pci-v6.18-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Search for MSI Capability with correct ID to fix an MSI regression on
platforms with Cadence IP (Hans Zhang)
- Revert early bridge resource set up to fix resource assignment
failures that broke at least alpha boot and Snapdragon ath12k WiFi
(Ilpo Järvinen)
- Implement VMD .irq_startup()/.irq_shutdown() to fix IRQ issues that
caused boot crashes and broken devices below VMD (Inochi Amaoto)
- Select CONFIG_SCREEN_INFO on X86 to fix black screen on boot when
SCREEN_INFO not selected (Mario Limonciello)
* tag 'pci-v6.18-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI/VGA: Select SCREEN_INFO on X86
PCI: vmd: Override irq_startup()/irq_shutdown() in vmd_init_dev_msi_info()
PCI: Revert early bridge resource set up
PCI: cadence: Search for MSI Capability with correct ID
- Avoid missing port component registers setup due to dport enumeration
failure
- Add check for no entries in cxl_feature_info to address accessing
invalid pointer.
- Use %pa printk format to emit resource_size_t in
validate_region_offset()
CXL extended linear cache support fixes:
- Fix setup of memory resource in cxl_acpi_set_cache_size()
- Set range param for region_res_match_cxl_range() as const.
(Addresses a compile warning for match_region_by_range() fix)
- Fix match_region_by_range() to use region_res_match_cxl_range()
- Subtract to find an hpa_alias0 in cxl_poison events to correct
the alias math calculation.
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Merge tag 'cxl-fixes-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link fixes from Dave Jiang:
"A small collection of CXL fixes. In addition to some misc fixes for
the CXL subsystem, a number of fixes for CXL extended linear cache
support are included to make it functional again.
- Avoid missing port component registers setup due to dport
enumeration failure
- Add check for no entries in cxl_feature_info to address accessing
invalid pointer.
- Use %pa printk format to emit resource_size_t in
validate_region_offset()
CXL extended linear cache support fixes:
- Fix setup of memory resource in cxl_acpi_set_cache_size()
- Set range param for region_res_match_cxl_range() as const
(addresses a compile warning for match_region_by_range() fix)
- Fix match_region_by_range() to use region_res_match_cxl_range()
- Subtract to find an hpa_alias0 in cxl_poison events to correct the
alias math calculation"
* tag 'cxl-fixes-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/trace: Subtract to find an hpa_alias0 in cxl_poison events
cxl/region: Use %pa printk format to emit resource_size_t
cxl: Fix match_region_by_range() to use region_res_match_cxl_range()
cxl: Set range param for region_res_match_cxl_range() as const
cxl/acpi: Fix setup of memory resource in cxl_acpi_set_cache_size()
cxl/features: Add check for no entries in cxl_feature_info
cxl/port: Avoid missing port component registers setup
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Replace bpf_map_kmalloc_node() with kmalloc_nolock() to fix kmemleak
imbalance in tracking of bpf_async_cb structures (Alexei Starovoitov)
- Make selftests/bpf arg_parsing.c more robust to errors (Andrii
Nakryiko)
- Fix redefinition of 'off' as different kind of symbol when I40E
driver is builtin (Brahmajit Das)
- Do not disable preemption in bpf_test_run (Sahil Chandna)
- Fix memory leak in __lookup_instance error path (Shardul Bankar)
- Ensure test data is flushed to disk before reading it (Xing Guo)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Fix redefinition of 'off' as different kind of symbol
bpf: Do not disable preemption in bpf_test_run().
bpf: Fix memory leak in __lookup_instance error path
selftests: arg_parsing: Ensure data is flushed to disk before reading.
bpf: Replace bpf_map_kmalloc_node() with kmalloc_nolock() to allocate bpf_async_cb structures.
selftests/bpf: make arg_parsing.c more robust to crashes
bpf: test_run: Fix ctx leak in bpf_prog_test_run_xdp error path
Bugfixes:
* Fix for FlexFiles mirror->dss allocation
* Apply delay_retrans to async operations
* Check if suid/sgid is cleared after a write when needed
* Fix setting the state renewal timer for early mounts after a reboot
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Merge tag 'nfs-for-6.18-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Fix for FlexFiles mirror->dss allocation
- Apply delay_retrans to async operations
- Check if suid/sgid is cleared after a write when needed
- Fix setting the state renewal timer for early mounts after a reboot
* tag 'nfs-for-6.18-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS4: Fix state renewals missing after boot
NFS: check if suid/sgid was cleared after a write as needed
NFS4: Apply delay_retrans to async operations
NFSv4/flexfiles: fix to allocate mirror->dss before use
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Merge tag '6.18-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"smb client fixes, security and smbdirect improvements, and some minor cleanup:
- Important OOB DFS fix
- Fix various potential tcon refcount leaks
- smbdirect (RDMA) fixes (following up from test event a few weeks
ago):
- Fixes to improve and simplify handling of memory lifetime of
smbdirect_mr_io structures, when a connection gets disconnected
- Make sure we really wait to reach SMBDIRECT_SOCKET_DISCONNECTED
before destroying resources
- Make sure the send/recv submission/completion queues are large
enough to avoid ib_post_send() from failing under pressure
- convert cifs.ko to use the recommended crypto libraries (instead of
crypto_shash), this also can improve performance
- Three small cleanup patches"
* tag '6.18-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: (24 commits)
smb: client: Consolidate cmac(aes) shash allocation
smb: client: Remove obsolete crypto_shash allocations
smb: client: Use HMAC-MD5 library for NTLMv2
smb: client: Use MD5 library for SMB1 signature calculation
smb: client: Use MD5 library for M-F symlink hashing
smb: client: Use HMAC-SHA256 library for SMB2 signature calculation
smb: client: Use HMAC-SHA256 library for key generation
smb: client: Use SHA-512 library for SMB3.1.1 preauth hash
cifs: parse_dfs_referrals: prevent oob on malformed input
smb: client: Fix refcount leak for cifs_sb_tlink
smb: client: let smbd_destroy() wait for SMBDIRECT_SOCKET_DISCONNECTED
smb: move some duplicate definitions to common/cifsglob.h
smb: client: let destroy_mr_list() keep smbdirect_mr_io memory if registered
smb: client: let destroy_mr_list() call ib_dereg_mr() before ib_dma_unmap_sg()
smb: client: call ib_dma_unmap_sg if mr->sgt.nents is not 0
smb: client: improve logic in smbd_deregister_mr()
smb: client: improve logic in smbd_register_mr()
smb: client: improve logic in allocate_mr_list()
smb: client: let destroy_mr_list() remove locked from the list
smb: client: let destroy_mr_list() call list_del(&mr->list)
...
- Fix the handling of ZCR_EL2 in NV VMs
- Pick the correct translation regime when doing a PTW on
the back of a SEA
- Prevent userspace from injecting an event into a vcpu that isn't
initialised yet
- Move timer save/restore to the sysreg handling code, fixing EL2 timer
access in the process
- Add FGT-based trapping of MDSCR_EL1 to reduce the overhead of debug
- Fix trapping configuration when the host isn't GICv3
- Improve the detection of HCR_EL2.E2H being RES1
- Drop a spurious 'break' statement in the S1 PTW
- Don't try to access SPE when owned by EL3
Documentation updates:
- Document the failure modes of event injection
- Document that a GICv3 guest can be created on a GICv5 host
with FEAT_GCIE_LEGACY
Selftest improvements:
- Add a selftest for the effective value of HCR_EL2.AMO
- Address build warning in the timer selftest when building with clang
- Teach irqfd selftests about non-x86 architectures
- Add missing sysregs to the set_id_regs selftest
- Fix vcpu allocation in the vgic_lpi_stress selftest
- Correctly enable interrupts in the vgic_lpi_stress selftest
x86:
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
deletes/moves memslot during prefault")
- Don't try to get PMU capabilities from perf when running a CPU with hybrid
CPUs/PMUs, as perf will rightly WARN.
guest_memfd:
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
said flag to initialize memory as SHARED, irrespective of MMAP. The
behavior merged in 6.18 is that enabling mmap() implicitly initializes
memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
as their memory is currently always initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
memory, to enable testing such setups, i.e. to hopefully flush out any
other lurking ABI issues before 6.18 is officially released.
- Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
and host userspace accesses to mmap()'d private memory.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix the handling of ZCR_EL2 in NV VMs
- Pick the correct translation regime when doing a PTW on the back of
a SEA
- Prevent userspace from injecting an event into a vcpu that isn't
initialised yet
- Move timer save/restore to the sysreg handling code, fixing EL2
timer access in the process
- Add FGT-based trapping of MDSCR_EL1 to reduce the overhead of debug
- Fix trapping configuration when the host isn't GICv3
- Improve the detection of HCR_EL2.E2H being RES1
- Drop a spurious 'break' statement in the S1 PTW
- Don't try to access SPE when owned by EL3
Documentation updates:
- Document the failure modes of event injection
- Document that a GICv3 guest can be created on a GICv5 host with
FEAT_GCIE_LEGACY
Selftest improvements:
- Add a selftest for the effective value of HCR_EL2.AMO
- Address build warning in the timer selftest when building with
clang
- Teach irqfd selftests about non-x86 architectures
- Add missing sysregs to the set_id_regs selftest
- Fix vcpu allocation in the vgic_lpi_stress selftest
- Correctly enable interrupts in the vgic_lpi_stress selftest
x86:
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test
for the bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return
-EAGAIN if userspace deletes/moves memslot during prefault")
- Don't try to get PMU capabilities from perf when running a CPU with
hybrid CPUs/PMUs, as perf will rightly WARN.
guest_memfd:
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a
more generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to
explicitly set said flag to initialize memory as SHARED,
irrespective of MMAP.
The behavior merged in 6.18 is that enabling mmap() implicitly
initializes memory as SHARED, which would result in an ABI
collision for x86 CoCo VMs as their memory is currently always
initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with
private memory, to enable testing such setups, i.e. to hopefully
flush out any other lurking ABI issues before 6.18 is officially
released.
- Add testcases to the guest_memfd selftest to cover guest_memfd
without MMAP, and host userspace accesses to mmap()'d private
memory"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (46 commits)
arm64: Revamp HCR_EL2.E2H RES1 detection
KVM: arm64: nv: Use FGT write trap of MDSCR_EL1 when available
KVM: arm64: Compute per-vCPU FGTs at vcpu_load()
KVM: arm64: selftests: Fix misleading comment about virtual timer encoding
KVM: arm64: selftests: Add an E2H=0-specific configuration to get_reg_list
KVM: arm64: selftests: Make dependencies on VHE-specific registers explicit
KVM: arm64: Kill leftovers of ad-hoc timer userspace access
KVM: arm64: Fix WFxT handling of nested virt
KVM: arm64: Move CNT*CT_EL0 userspace accessors to generic infrastructure
KVM: arm64: Move CNT*_CVAL_EL0 userspace accessors to generic infrastructure
KVM: arm64: Move CNT*_CTL_EL0 userspace accessors to generic infrastructure
KVM: arm64: Add timer UAPI workaround to sysreg infrastructure
KVM: arm64: Make timer_set_offset() generally accessible
KVM: arm64: Replace timer context vcpu pointer with timer_id
KVM: arm64: Introduce timer_context_to_vcpu() helper
KVM: arm64: Hide CNTHV_*_EL2 from userspace for nVHE guests
Documentation: KVM: Update GICv3 docs for GICv5 hosts
KVM: arm64: gic-v3: Only set ICH_HCR traps for v2-on-v3 or v3 guests
KVM: arm64: selftests: Actually enable IRQs in vgic_lpi_stress
KVM: arm64: selftests: Allocate vcpus with correct size
...
- Fix to handle NULL pointer dereference at irq domain teardown
- Fix for handling extraction of struct xive_irq_data
- Fix to skip parameter area allocation when fadump disabled
Thanks to: Ganesh Goudar, Hari Bathini, Nam Cao, Ritesh Harjani (IBM) Sourabh Jain, Venkat Rao Bagalkote,
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Merge tag 'powerpc-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Madhavan Srinivasan:
- Fix to handle NULL pointer dereference at irq domain teardown
- Fix for handling extraction of struct xive_irq_data
- Fix to skip parameter area allocation when fadump disabled
Thanks to Ganesh Goudar, Hari Bathini, Nam Cao, Ritesh Harjani (IBM),
Sourabh Jain, and Venkat Rao Bagalkote,
* tag 'powerpc-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/fadump: skip parameter area allocation when fadump is disabled
powerpc, ocxl: Fix extraction of struct xive_irq_data
powerpc/pseries/msi: Fix NULL pointer dereference at irq domain teardown
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Merge tag 'slab-for-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- Fixes for two bugs that can be triggered when debugging options are
enabled (Hao Ge, Vlastimil Babka)
* tag 'slab-for-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slab: reset slab->obj_ext when freeing and it is OBJEXTS_ALLOC_FAIL
slab: fix clearing freelist in free_deferred_objects()
According to the CRB over FF-A specification [1], a TPM that implements
the ABI must comply with the TCG PTP specification. This requires support
for the Idle and Ready states.
This patch implements CRB control area requests for goIdle and
cmdReady on FF-A based TPMs.
The FF-A message used to notify the TPM of CRB updates includes a
locality parameter, which provides a hint to the TPM about which
locality modified the CRB. This patch adds a locality parameter
to __crb_go_idle() and __crb_cmd_ready() to support this.
[1] https://developer.arm.com/documentation/den0138/latest/
Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
deletes/moves memslot during prefault")
- Don't try to get PMU capabbilities from perf when running a CPU with hybrid
CPUs/PMUs, as perf will rightly WARN.
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
said flag to initialize memory as SHARED, irrespective of MMAP. The
behavior merged in 6.18 is that enabling mmap() implicitly initializes
memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
as their memory is currently always initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
memory, to enable testing such setups, i.e. to hopefully flush out any
other lurking ABI issues before 6.18 is officially released.
- Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
and host userspace accesses to mmap()'d private memory.
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Merge tag 'kvm-x86-fixes-6.18-rc2' of https://github.com/kvm-x86/linux into HEAD
KVM x86 fixes for 6.18:
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
deletes/moves memslot during prefault")
- Don't try to get PMU capabbilities from perf when running a CPU with hybrid
CPUs/PMUs, as perf will rightly WARN.
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
said flag to initialize memory as SHARED, irrespective of MMAP. The
behavior merged in 6.18 is that enabling mmap() implicitly initializes
memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
as their memory is currently always initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
memory, to enable testing such setups, i.e. to hopefully flush out any
other lurking ABI issues before 6.18 is officially released.
- Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
and host userspace accesses to mmap()'d private memory.
- Explicitly encode the XZR register if the value passed to
write_sysreg_s() is 0. The GIC CDEOI instruction is encoded as a
system register write with XZR as the source register. However, clang
does not honour the "Z" register constraint, leading to incorrect
code generation
- Ensure the interrupts (DAIF.IF) are unmasked when completing
single-step of a suspended breakpoint before calling
exit_to_user_mode(). With pseudo-NMIs, interrupts are (additionally)
masked at the PMR_EL1 register, handled by local_irq_*()
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Explicitly encode the XZR register if the value passed to
write_sysreg_s() is 0.
The GIC CDEOI instruction is encoded as a system register write with
XZR as the source register. However, clang does not honour the "Z"
register constraint, leading to incorrect code generation
- Ensure the interrupts (DAIF.IF) are unmasked when completing
single-step of a suspended breakpoint before calling
exit_to_user_mode().
With pseudo-NMIs, interrupts are (additionally) masked at the PMR_EL1
register, handled by local_irq_*()
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: debug: always unmask interrupts in el0_softstp()
arm64/sysreg: Fix GIC CDEOI instruction encoding
Some RISC-V fixes for v6.18-rc2, including changes to:
- Disable CFI with Rust for any platform other than x86 and ARM64
- Keep task mm_cpumasks up-to-date to avoid triggering M-mode firmware
warnings if the kernel tries to send an IPI to an offline CPU
- Improve kprobe address validation performance and avoid desyncs
(following x86)
- Avoid duplicate device probes by avoiding DT hardware probing when
ACPI is enabled in early boot
- Use the correct set of dependencies for CONFIG_ARCH_HAS_ELF_CORE_EFLAGS,
avoiding an allnoconfig warning
- Fix a few other minor issues
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Merge tag 'riscv-for-linux-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Disable CFI with Rust for any platform other than x86 and ARM64
- Keep task mm_cpumasks up-to-date to avoid triggering M-mode firmware
warnings if the kernel tries to send an IPI to an offline CPU
- Improve kprobe address validation performance and avoid desyncs
(following x86)
- Avoid duplicate device probes by avoiding DT hardware probing when
ACPI is enabled in early boot
- Use the correct set of dependencies for
CONFIG_ARCH_HAS_ELF_CORE_EFLAGS, avoiding an allnoconfig warning
- Fix a few other minor issues
* tag 'riscv-for-linux-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: kprobes: convert one final __ASSEMBLY__ to __ASSEMBLER__
riscv: Respect dependencies of ARCH_HAS_ELF_CORE_EFLAGS
riscv: acpi: avoid errors caused by probing DT devices when ACPI is used
riscv: kprobes: Fix probe address validation
riscv: entry: fix typo in comment 'instruciton' -> 'instruction'
RISC-V: clear hot-unplugged cores from all task mm_cpumasks to avoid rfence errors
riscv: kgdb: Ensure that BUFMAX > NUMREGBYTES
rust: cfi: only 64-bit arm and x86 support CFI_CLANG
This fixes the following build error
CLNG-BPF [test_progs] verifier_global_ptr_args.bpf.o
progs/verifier_global_ptr_args.c:228:5: error: redefinition of 'off' as
different kind of symbol
228 | u32 off;
| ^
The symbol 'off' was previously defined in
tools/testing/selftests/bpf/tools/include/vmlinux.h, which includes an
enum i40e_ptp_gpio_pin_state from
drivers/net/ethernet/intel/i40e/i40e_ptp.c:
enum i40e_ptp_gpio_pin_state {
end = -2,
invalid = -1,
off = 0,
in_A = 1,
in_B = 2,
out_A = 3,
out_B = 4,
};
This enum is included when CONFIG_I40E is enabled. As of commit
032676ff82 ("LoongArch: Update Loongson-3 default config file"),
CONFIG_I40E is set in the defconfig, which leads to the conflict.
Renaming the local variable avoids the redefinition and allows the
build to succeed.
Suggested-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Brahmajit Das <listout@listout.xyz>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20251017171551.53142-1-listout@listout.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The timer mode is initialized to NO_PREEMPT mode by default,
this disables preemption and force execution in atomic context
causing issue on PREEMPT_RT configurations when invoking
spin_lock_bh(), leading to the following warning:
BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6107, name: syz.0.17
preempt_count: 1, expected: 0
RCU nest depth: 1, expected: 1
Preemption disabled at:
[<ffffffff891fce58>] bpf_test_timer_enter+0xf8/0x140 net/bpf/test_run.c:42
Fix this, by removing NO_PREEMPT/NO_MIGRATE mode check.
Also, the test timer context no longer needs explicit calls to
migrate_disable()/migrate_enable() with rcu_read_lock()/rcu_read_unlock().
Use helpers rcu_read_lock_dont_migrate() and rcu_read_unlock_migrate()
instead.
Reported-by: syzbot+1f1fbecb9413cdbfbef8@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=1f1fbecb9413cdbfbef8
Suggested-by: Yonghong Song <yonghong.song@linux.dev>
Suggested-by: Menglong Dong <menglong.dong@linux.dev>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Tested-by: syzbot+1f1fbecb9413cdbfbef8@syzkaller.appspotmail.com
Co-developed-by: Brahmajit Das <listout@listout.xyz>
Signed-off-by: Brahmajit Das <listout@listout.xyz>
Signed-off-by: Sahil Chandna <chandna.sahil@gmail.com>
Link: https://lore.kernel.org/r/20251014185635.10300-1-chandna.sahil@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
We intend that EL0 exception handlers unmask all DAIF exceptions
before calling exit_to_user_mode().
When completing single-step of a suspended breakpoint, we do not call
local_daif_restore(DAIF_PROCCTX) before calling exit_to_user_mode(),
leaving all DAIF exceptions masked.
When pseudo-NMIs are not in use this is benign.
When pseudo-NMIs are in use, this is unsound. At this point interrupts
are masked by both DAIF.IF and PMR_EL1, and subsequent irq flag
manipulation may not work correctly. For example, a subsequent
local_irq_enable() within exit_to_user_mode_loop() will only unmask
interrupts via PMR_EL1 (leaving those masked via DAIF.IF), and
anything depending on interrupts being unmasked (e.g. delivery of
signals) will not work correctly.
This was detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.
Move the call to `try_step_suspended_breakpoints()` outside of the check
so that interrupts can be unmasked even if we don't call the step handler.
Fixes: 0ac7584c08 ("arm64: debug: split single stepping exception entry")
Cc: <stable@vger.kernel.org> # 6.17
Signed-off-by: Ada Couprie Diaz <ada.coupriediaz@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
[catalin.marinas@arm.com: added Mark's rewritten commit log and some whitespace]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The GIC CDEOI system instruction requires the Rt field to be set to 0b11111
otherwise the instruction behaviour becomes CONSTRAINED UNPREDICTABLE.
Currenly, its usage is encoded as a system register write, with a constant
0 value:
write_sysreg_s(0, GICV5_OP_GIC_CDEOI)
While compiling with GCC, the 0 constant value, through these asm
constraints and modifiers ('x' modifier and 'Z' constraint combo):
asm volatile(__msr_s(r, "%x0") : : "rZ" (__val));
forces the compiler to issue the XZR register for the MSR operation (ie
that corresponds to Rt == 0b11111) issuing the right instruction encoding.
Unfortunately LLVM does not yet understand that modifier/constraint
combo so it ends up issuing a different register from XZR for the MSR
source, which in turns means that it encodes the GIC CDEOI instruction
wrongly and the instruction behaviour becomes CONSTRAINED UNPREDICTABLE
that we must prevent.
Add a conditional to write_sysreg_s() macro that detects whether it
is passed a constant 0 value and issues an MSR write with XZR as source
register - explicitly doing what the asm modifier/constraint is meant to
achieve through constraints/modifiers, fixing the LLVM compilation issue.
Fixes: 7ec80fb3f0 ("irqchip/gic-v5: Add GICv5 PPI support")
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Cc: Sascha Bischoff <sascha.bischoff@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Merge tag 'io_uring-6.18-20251016' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Revert of a change that went into an older kernel, and which has been
reported to cause a regression for some write workloads on LVM while
a snapshop is being created
- Fix a regression from this merge window, where some compilers (and/or
certain .config options) would cause an earlier evaluations of a
dereference which would then cause a NULL pointer dereference.
I was only able to reproduce this with OPTIMIZE_FOR_SIZE=y, but David
Howells hit it with just KASAN enabled. Depending on how things
inlined, this makes sense
- Fix for a missing lock around a mem region unregistration
- Fix for ring resizing with the same placement after resize
* tag 'io_uring-6.18-20251016' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/rw: check for NULL io_br_sel when putting a buffer
io_uring: fix unexpected placement on same size resizing
io_uring: protect mem region deregistration
Revert "io_uring/rw: drop -EOPNOTSUPP check in __io_complete_rw_common()"
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Merge tag 'block-6.18-20251016' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- iostats accounting fixed on multipath retries (Amit)
- secure concatenation response fixup (Martin)
- tls partial record fixup (Wilfred)
- Fix for a lockdep reported issue with the elevator lock and
blk group frozen operations
- Fix for a regression in this merge window, where updating
'nr_requests' would not do the right thing for queues with
shared tags
* tag 'block-6.18-20251016' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
nvme/tcp: handle tls partially sent records in write_space()
block: Remove elevator_lock usage from blkg_conf frozen operations
blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()
nvme-auth: update sc_c in host response
nvme-multipath: Skip nr_active increments in RETRY disposition
- Move rpmb_frame struct and constants to rpmb common header
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Merge tag 'mmc-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull mmc cleanup from Ulf Hansson:
"Move rpmb_frame struct and constants to rpmb common header
This helps us to avoid sharing an immutable branch between our git
trees. I was planning to send it before rc1, but I didn't make it"
* tag 'mmc-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
rpmb: move rpmb_frame struct and constants to common header
A collection of small fixes. All changes are rather boring
device-specific fixes and quirks.
- A few fixes for missing NULL checks
- ASoC NAU8821 fixes for jack and irq handling
- Various fixes for ASoC TAS2781, IDT821034, sc8280xp, max9809x,
wcd938x, and SoundWire
- Usual HD-audio and USB-audio quirks
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Merge tag 'sound-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes. All changes are rather boring
device-specific fixes and quirks:
- A few fixes for missing NULL checks
- ASoC NAU8821 fixes for jack and irq handling
- Various fixes for ASoC TAS2781, IDT821034, sc8280xp, max9809x,
wcd938x, and SoundWire
- Usual HD-audio and USB-audio quirks"
* tag 'sound-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (27 commits)
ALSA: hda/realtek: Fix mute led for HP Omen 17-cb0xxx
ALSA: usb-audio: fix vendor quirk for Logitech H390
ALSA: usb-audio: add volume quirks for MS LifeChat LX-3000
ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails
ASoC: max98090/91: fixed max98091 ALSA widget powering up/down
ASoC: dt-bindings: Add compatible string fsl,imx-audio-tlv320
ASoC: codecs: wcd938x-sdw: remove redundant runtime pm calls
ASoC: sdw_utils: add rt1321 part id to codec_info_list
ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card
ALSA: firewire: amdtp-stream: fix enum kernel-doc warnings
ALSA: usb-audio: add mixer_playback_min_mute quirk for Logitech H390
ASoC: nau8821: Avoid unnecessary blocking in IRQ handler
ASoC: nau8821: Add DMI quirk to bypass jack debounce circuit
ASoC: nau8821: Consistently clear interrupts before unmasking
ASoC: nau8821: Generalize helper to clear IRQ status
ASoC: nau8821: Cancel jdet_work before handling jack ejection
ASoC: codecs: Fix gain setting ranges for Renesas IDT821034 codec
ASoC: tas2781: Update ti,tas2781.yaml for adding tas58xx
ASoC: tas2781: Support more newly-released amplifiers tas58xx in the driver
ASoC: qcom: sc8280xp: Add support for QCS615
...
draw:
- Avoid color truncation
gpuvm:
- Avoid kernel-doc warning
sched:
- Avoid double free
i915:
- Skip GuC communication warning if reset is in progress
- Couple frontbuffer related fixes
- Deactivate PSR only on LNL and when selective fetch enabled
xe:
- Increase global invalidation timeout to handle some workloads
- Fix NPD while evicting BOs in an array of VM binds
- Fix resizable BAR to account for possibly needing to move BARs other
than the LMEMBAR
- Fix error handling in xe_migrate_init()
- Fix atomic fault handling with mixed mappings or if the page is
already in VRAM
- Enable media samplers power gating for platforms before Xe2
- Fix de-registering exec queue from GuC when unbinding
- Ensure data migration to system if indicated by madvise with SVM
- Fix kerneldoc for kunit change
- Always account for cacheline alignment on migration
- Drop bogus assertion on eviction
amdgpu:
- Backlight fix
- SI fixes
- CIK fix
- Make CE support debug only
- IP discovery fix
- Ring reset fixes
- GPUVM fault memory barrier fix
- Drop unused structures in amdgpu_drm.h
- JPEG debugfs fix
- VRAM handling fixes for GPUs without VRAM
- GC 12 MES fixes
amdkfd:
- MES fix
ast:
- Fix display output after reboot
bridge:
- lt9211: Fix version check
panthor:
- Fix MCU suspend
qaic:
- Init bootlog in correct order
- Treat remaining == 0 as error in find_and_map_user_pages()
- Lock access to DBC request queue
rockchip:
- vop2: Fix destination size in atomic check
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Merge tag 'drm-fixes-2025-10-17' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"As per usual xe/amdgpu are the leaders, with some i915 and then a
bunch of scattered fixes. There are a bunch of stability fixes for
some older amdgpu cards.
draw:
- Avoid color truncation
gpuvm:
- Avoid kernel-doc warning
sched:
- Avoid double free
i915:
- Skip GuC communication warning if reset is in progress
- Couple frontbuffer related fixes
- Deactivate PSR only on LNL and when selective fetch enabled
xe:
- Increase global invalidation timeout to handle some workloads
- Fix NPD while evicting BOs in an array of VM binds
- Fix resizable BAR to account for possibly needing to move BARs
other than the LMEMBAR
- Fix error handling in xe_migrate_init()
- Fix atomic fault handling with mixed mappings or if the page is
already in VRAM
- Enable media samplers power gating for platforms before Xe2
- Fix de-registering exec queue from GuC when unbinding
- Ensure data migration to system if indicated by madvise with SVM
- Fix kerneldoc for kunit change
- Always account for cacheline alignment on migration
- Drop bogus assertion on eviction
amdgpu:
- Backlight fix
- SI fixes
- CIK fix
- Make CE support debug only
- IP discovery fix
- Ring reset fixes
- GPUVM fault memory barrier fix
- Drop unused structures in amdgpu_drm.h
- JPEG debugfs fix
- VRAM handling fixes for GPUs without VRAM
- GC 12 MES fixes
amdkfd:
- MES fix
ast:
- Fix display output after reboot
bridge:
- lt9211: Fix version check
panthor:
- Fix MCU suspend
qaic:
- Init bootlog in correct order
- Treat remaining == 0 as error in find_and_map_user_pages()
- Lock access to DBC request queue
rockchip:
- vop2: Fix destination size in atomic check"
* tag 'drm-fixes-2025-10-17' of https://gitlab.freedesktop.org/drm/kernel: (44 commits)
drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies
drm/xe/evict: drop bogus assert
drm/xe/migrate: don't misalign current bytes
drm/xe/kunit: Fix kerneldoc for parameterized tests
drm/xe/svm: Ensure data will be migrated to system if indicated by madvise.
drm/gpuvm: Fix kernel-doc warning for drm_gpuvm_map_req.map
drm/i915/psr: Deactivate PSR only on LNL and when selective fetch enabled
drm/ast: Blank with VGACR17 sync enable, always clear VGACRB6 sync off
accel/qaic: Synchronize access to DBC request queue head & tail pointer
accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages()
accel/qaic: Fix bootlog initialization ordering
drm/rockchip: vop2: use correct destination rectangle height check
drm/draw: fix color truncation in drm_draw_fill24
drm/xe/guc: Check GuC running state before deregistering exec queue
drm/xe: Enable media sampler power gating
drm/xe: Handle mixed mappings and existing VRAM on atomic faults
drm/xe/migrate: Fix an error path
drm/xe: Move rebar to be done earlier
drm/xe: Don't allow evicting of BOs in same VM in array of VM binds
drm/xe: Increase global invalidation timeout to 1000us
...
Jens Axboe