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kvm_inject_serror_esr() constructs an SError syndrome without IL. The
architecture mandates IL=1 for SError unconditionally.
Fixes: f6e2262dfa1a ("KVM: arm64: Populate ESR_ELx.EC for emulated SError injection")
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260618121643.4105064-6-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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The FPAC syndrome constructed during nested ERET emulation does not set
IL. For FPAC (EC=0x1C), IL reflects the instruction length. ERET and
its authenticated variants are always A64 32-bit instructions, so IL
must be 1.
Fixes: 213b3d1ea161 ("KVM: arm64: nv: Handle ERETA[AB] instructions")
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260618121643.4105064-5-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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inject_abt64() derives IL from the triggering trap's instruction length
(kvm_vcpu_trap_il_is32bit()), but the IL of the injected abort is fixed
by its EC, not by the triggering instruction. The architecture mandates
IL=1 for Instruction Aborts unconditionally and for Data Aborts with
ISV=0, and this function never sets ISV (the FSC is always EXTABT or
SEA_TTW). For a 16-bit T32 trap (a 32-bit EL0 task under an AArch64 EL1
guest) the trap has IL=0, so the abort is injected with the wrong IL.
Set ESR_ELx_IL unconditionally.
Fixes: aa8eff9bfbd5 ("arm64: KVM: fault injection into a guest")
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260618121643.4105064-4-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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inject_undef64() derives IL from the triggering trap's instruction
length (kvm_vcpu_trap_il_is32bit()), but the IL of the injected
exception is fixed by its EC, not by the triggering instruction. The
architecture mandates IL=1 for EC=0 (Unknown) unconditionally, so the
conditional is wrong. The undef-injection paths are not reached from
16-bit instructions, so there is no functional change today, but the
logic should not rely on that.
Set ESR_ELx_IL unconditionally.
Fixes: aa8eff9bfbd5 ("arm64: KVM: fault injection into a guest")
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260618121643.4105064-3-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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inject_undef64() constructs an ESR with EC=0 (Unknown) but does not set
IL. The architecture mandates IL=1 for EC=0 unconditionally (ARM DDI
0487, ESR_ELx.IL description), so the injected syndrome is one that
conforming hardware cannot produce.
Set ESR_ELx_IL in the constructed syndrome.
Fixes: e5d40a5a97c1 ("KVM: arm64: pkvm: Add a generic synchronous exception injection primitive")
Reported-by: sashiko <sashiko@sashiko.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260618121643.4105064-2-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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KVM is unlikely to resolve an unexpected VNCR abort, meaning that
returning to the guest will likely leave the vCPU stuck in an abort
loop. Bug the VM and exit to userspace instead.
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260618234207.1063941-6-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable
memory attributes, even if the underlying PFN isn't memory. This gets
particularly hairy if the endpoint doesn't support cacheable memory
attributes, potentially throwing an SError on writeback...
While KVM does permit cacheable memory attributes on certain PFNMAP
VMAs, kvm_translate_vncr() isn't currently grabbing the VMA. So do the
simpler thing for now and just reject everything that isn't memory.
Cc: stable@vger.kernel.org
Fixes: 2a359e072596 ("KVM: arm64: nv: Handle mapping of VNCR_EL2 at EL2")
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260618234207.1063941-5-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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KVM faults in the VNCR page with FOLL_WRITE whenever the guest aborts
for a write, similar to how a regular stage-2 mapping is handled. It is
entirely possible that the guest reads from the VNCR before writing to
it, in which case the PFN could only be read-only.
Invalidate the VNCR TLB and re-fetch the translation upon taking a VNCR
abort, allowing the host mapping to be faulted in for write the second
time around. Interestingly enough, this also satisfies the ordering
requirements of FEAT_ETS2/3 between descriptor updates and MMU faults.
Cc: stable@vger.kernel.org
Fixes: 2a359e072596 ("KVM: arm64: nv: Handle mapping of VNCR_EL2 at EL2")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260618234207.1063941-4-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort
when kvm_translate_vncr() returns -EFAULT. This is not always the case
as it's possible to encounter 'late' failures on the output of S1
translation, e.g. a GFN outside of the memslots.
Fix it by preparing an external abort before returning from
kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection
path while at it.
Cc: stable@vger.kernel.org
Fixes: 2a359e072596 ("KVM: arm64: nv: Handle mapping of VNCR_EL2 at EL2")
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260618234207.1063941-3-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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KVM currently maps the L1 VNCR into the host stage-1 by relying entirely
on the permissions of the guest stage-1. At the same time, it is
entirely possible that the backing PFN is read-only (e.g. RO memslot),
meaning that the L1 VNCR should use at most a read-only mapping.
Cache the writability of the PFN in the VNCR TLB and use it to constrain
the resulting fixmap permissions. Promote VNCR permission faults to an
SEA in the case where the guest attempts to write to a read-only
endpoint. Conveniently, this also plugs a page leak found by Sashiko [*]
resulting from the early return for a read-only PFN.
Cc: stable@vger.kernel.org
Fixes: 2a359e072596 ("KVM: arm64: nv: Handle mapping of VNCR_EL2 at EL2")
Link: https://lore.kernel.org/kvm/20260608082603.16AEC1F00893@smtp.kernel.org/
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260618234207.1063941-2-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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LoongArch architecture changes for 7.2 need the bpf changes to add new
features, so merge 'bpf-next-7.2' to create a base.
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen)
Fix a taskstats TGID aggregation bug where fields added in the TGID
query path were not preserved after thread exit, and adds a kselftest
covering the regression.
- "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko)
Improve lib/tests/string_helpers_kunit.c a little
- "lib/base64: decode fixes" (Josh Law)
Address minor issues in lib/base64.c
- "selftests/filelock: Make output more kselftestish" (Mark Brown)
Make the output from the ofdlocks test a bit easier for tooling to
work with. Also ignore the generated file
- "uaccess: unify inline vs outline copy_{from,to}_user() selection"
(Yury Norov)
Simplify the usercopy code by removing the selectability of inlining
copy_{from,to}_user().
- "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang)
Fix a number of possible issues in the ocfs2 xattr code
- "lib and lib/cmdline enhancements" (Dmitry Antipov)
Provide additional robustness checking in the cmdline handling code
and its in-kernel testing and selftests
- "cleanup the RAID6 P/Q library" (Christoph Hellwig)
Clean up the RAID6 P/Q library to match the recent updates to the
RAID 5 XOR library and other CRC/crypto libraries
- "ocfs2: harden inode validators against forged metadata" (Michael
Bommarito)
Add three structural checks to OCFS2 dinode validation so malformed
on-disk fields are rejected before ocfs2_populate_inode() copies them
into the in-core inode
- "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike
Rapoport)
Clean up the lib/raid code by using kmalloc() in more places
* tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits)
ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write
ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits
lib: interval_tree_test: validate benchmark parameters
ocfs2: avoid moving extents to occupied clusters
treewide: fix transposed "sign" typos and update spelling.txt
ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec
fat: reject BPB volumes whose data area starts beyond total sectors
selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems
lib/test_firmware: allocate the configured into_buf size
fs: efs: remove unneeded debug prints
checkpatch: cuppress warnings when Reported-by: is followed by Link:
MAINTAINERS: add Alexander as a kcov reviewer
mailmap: update Alexander Sverdlin's Email addresses
fs: fat: inode: replace sprintf() with scnprintf()
ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release()
ocfs2/dlm: require a ref for locking_state debugfs open
ocfs2: reject FITRIM ranges shorter than a cluster
ocfs2: validate fast symlink target during inode read
ocfs2: add journal NULL check in ocfs2_checkpoint_inode()
...
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Pull OpenRISC updates from Stafford Horne:
"A few fixes for text patching related code:
- Update the section of map_page used in text patching. It was
left with __init when text patching was introduced to OpenRISC
- Add fix to invalidate remote SMP core i-caches after text is
patched"
* tag 'for-linus' of https://github.com/openrisc/linux:
openrisc: Fix jump_label smp syncing
openrisc: Add full instruction cache invalidate functions
openrisc: Cache invalidation cleanup
openrisc: mm: Fix section mismatch between map_page and __set_fixmap
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull strncpy removal from Kees Cook:
- Remove the per-arch strncpy implementations in alpha, m68k, powerpc,
x86, and xtensa
- Remove strncpy API
Over the last 6 years working on strncpy removal there were 362
commits by 70 contributors. Folks with more than 1 commit were:
211 Justin Stitt <justinstitt@google.com>
22 Xu Panda <xu.panda@zte.com.cn>
21 Kees Cook <kees@kernel.org>
17 Thorsten Blum <thorsten.blum@linux.dev>
12 Arnd Bergmann <arnd@arndb.de>
4 Pranav Tyagi <pranav.tyagi03@gmail.com>
4 Lee Jones <lee@kernel.org>
2 Steven Rostedt <rostedt@goodmis.org>
2 Sam Ravnborg <sam@ravnborg.org>
2 Marcelo Moreira <marcelomoreira1905@gmail.com>
2 Krzysztof Kozlowski <krzk@kernel.org>
2 Kalle Valo <kvalo@kernel.org>
2 Jaroslav Kysela <perex@perex.cz>
2 Daniel Thompson <danielt@kernel.org>
2 Andrew Lunn <andrew@lunn.ch>
* tag 'strncpy-removal-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
string: Remove strncpy() from the kernel
xtensa: Remove arch-specific strncpy() implementation
x86: Remove arch-specific strncpy() implementation
powerpc: Remove arch-specific strncpy() implementation
m68k: Remove arch-specific strncpy() implementation
alpha: Remove arch-specific strncpy() implementation
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "selftests/mm: clean up build output and verbosity" (Li Wang)
Remove some noise from the MM selftests build
- "mm: Free contiguous order-0 pages efficiently" (Ryan Roberts)
Speed up the freeing of a batch of 0-order pages by first scanning
them for coalescing opportunities. This is applicable to vfree() and
to the releasing of frozen pages
- "mm/damon: introduce DAMOS failed region quota charge ratio"
(SeongJae Park)
Address a DAMOS usability issue: The DAMOS quota often exhausts
prematurely because it charges for all memory attempted, causing slow
and inconsistent performance when actions fail on unreclaimable
memory.
To fix this, a new feature lets users set a smaller, flexible quota
charge ratio (via a numerator and denominator) for failed regions.
Since failed actions cause less overhead, reducing their quota cost
ensures more predictable and efficient DAMOS processing
- "selftests/cgroup: improve zswap tests robustness and support large
page sizes" (Li Wang)
Fix various spurious failures and improves the overall robustness of
the cgroup zswap selftests
- "fix MAP_DROPPABLE not supported errno" (Anthony Yznaga)
Fix an issue in the mlock selftests on arm32
- "mm: huge_memory: clean up defrag sysfs with shared" (Breno Leitao)
Some maintenance work in the huge_memory code
- "treewide: fixup gfp_t printks" (Brendan Jackman)
Use the special vprintf() gfp_t conversion in various places
- "mm: Fix vmemmap optimization accounting and initialization" (Muchun
Song)
Fix several bugs in the vmemmap optimization, mainly around incorrect
page accounting and memmap initialization in the DAX and memory
hotplug paths. It also fixes pageblock migratetype initialization and
struct page initialization for ZONE_DEVICE compound pages
- "mm/damon: repost non-hotfix reviewed patches in damon/next tree"
A sprinkle of unrelated minor bugfixes for DAMON
- "mm: remove page_mapped()" (David Hildenbrand)
Remove this function from the tree, replacing it with folio_mapped()
- "mm/damon: let DAMON be paused and resumed" (SeongJae Park)
Allow DAMON to be paused and resumed without losing its current state
- "kasan: hw_tags: Disable tagging for stack and page-tables" (Muhammad
Usama Anjum)
Simplify and speed up kasan by removing its ineffective tagging of
stacks and page tables
- "mm/damon/reclaim,lru_sort: monitor all system rams by default"
(SeongJae Park)
Simplify deployment on diverse hardware like NUMA systems by updating
DAMON_RECLAIM and DAMON_LRU_SORT to automatically monitor the
physical address range covering all System RAM areas by default,
replacing the overly restrictive behavior that only targeted the
single largest memory block to save on negligible overhead
- "mm/damon/sysfs: document filters/ directory as deprecated" (SeongJae
Park)
Update some DAMON docs
- "mm: use spinlock guards for zone lock" (Dmitry Ilvokhin)
Switch zone->lock handling over to using the guard() mechanisms
- "mm/filemap: tighten mmap_miss hit accounting" (fujunjie)
Fix a flaw where the mmap_miss counter over-credited page cache hits
during fault-arounds and page-fault retries. This results in
significant reduction of redundant synchronous mmap readahead I/O,
drastically cutting down execution time and gigabytes read for sparse
random or strided memory access workloads
- "selftests/cgroup: Fix false positive failures in test_percpu_basic"
(Li Wang)
Fix a couple of false-positives in the cgroup kmem selftests
- "mm/damon/reclaim: support monitoring intervals auto-tuning"
(SeongJae Park)
Add a new parameter to DAMON permitting DAMON_RECLAIM to
automatically tune DAMON's sampling and aggregation intervals
- "mm/damon/stat: add kdamond_pid parameter" (SeongJae Park)
Change DAMON_STAT to provide the pid of its kdamond
- "mm/kmemleak: dedupe verbose scan output" (Breno Leitao)
Remove large amounts of duplicated backtraces from the verbose-mode
kmemleak output
- "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)" (David
Hildenbrand)
Reduce our use of CONFIG_HAVE_BOOTMEM_INFO_NODE, with a view to
removing it entirely in a later series
- "mm/damon: validate min_region_size to be power of 2" (Liew Rui Yan)
Prevent users from passing a non-power-of-2 value of `addr_unit', as
this later results in undesirable behavior
- "mm: document read_pages and simplify usage" (Frederick Mayle)
- "tools/mm/page-types: Fix misc bugs" (Ye Liu)
Fix three issues in tools/mm/page-types.c
- "mm: misc cleanups from __GFP_UNMAPPED series" (Brendan Jackman)
Implement several cleanups in the page allocator and related code
- "mm, swap: swap table phase IV: unify allocation" (Kairui Song)
Unify the allocation and charging of anon and shmem swap in folios,
provides better synchronization, consolidates the metadata
management, hence dropping the static array and map, and improves
performance
- "mm/damon: introduce data attributes monitoring" (SeongJae Park(
Extend DAMON to monitor general data attributes other than accesses
- "mm/vmalloc: free unused pages on vrealloc() shrink" (Shivam Kalra)
Implement the TODO in vrealloc() to unmap and free unused pages when
shrinking across a page boundary
- "mm/damon: documentation and comment fixes" (niecheng)
- "remove mmap_action success, error hooks" (Lorenzo Stoakes)
Eliminate custom hooks from mmap_action by removing the problematic
success_hook which allowed drivers to improperly access uninitialized
VMAs. It replaces the error_hook with a simple error-code field and
updates the memory char driver accordingly
- "mm/damon: minor improvements for code readability and tests"
(SeongJae Park)
- "mm/damon: fix macro arguments and clarify quota goals doc" (Maksym
Shcherba)
- "userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c" (Mike
Rapoport)
- "mm/mglru: improve reclaim loop and dirty folio" (Kairui Song and
others)
Clean up and slightly improves MGLRU's reclaim loop and dirty
writeback handling. Large performance improvements are measured
- "use vma locks for proc/pid/{smaps|numa_maps} reads" (Suren
Baghdasaryan)
Use per-vma locks when reading /proc/pid/smaps and numa_maps similar
to reduce contention on central mmap_lock
- "refactors thpsize_shmem_enabled_store() and thpsize_shmem_enabled_show()"
(Ran Xiaokai)
Some cleanup work in the THP code
- "selftests/memfd: fix compilation warnings" (Konstantin Khorenko)
Fix a few build glitches in the memfd selftest code.
- "memcg: shrink obj_stock_pcp and cache multiple objcgs" (Shakeel
Butt)
Resolve a 68% performance regression caused by NUMA-node cache
thrashing around struct obj_stock_pcp by shrinking its existing
fields and expanding it into a multi-slot array that caches up to
five obj_cgroup pointers per CPU, allowing per-node variants of the
same memcg to coexist within a single 64-byte cache line.
- "zram: writeback fixes" (Sergey Senozhatsky)
address a couple of unrelated zram writeback issues
- "mm: switch THP shrinker to list_lru" (Johannes Weiner)
Resolve NUMA-awareness issues and streamlines callsite interaction by
refactoring and extending the list_lru API to completely replace the
complex, open-coded deferred split queue for Transparent Huge Pages
- "mm: improve large folio readahead for exec memory" (Usama Arif)
Improve large-folio readahead on systems like 64K-page arm64 by
preventing the mmap_miss check from permanently disabling
target-oriented VM_EXEC readahead, and by generalizing the
force_thp_readahead gate to support mappings with any usefully large
maximum folio order under the cache cap.
- "userfaultfd/pagemap: pre-existing fixes" (Kiryl Shutsemau)
Fix a bunch of minor issues in the userfaultfd/pagemap, all of which
were flagged by Sashiko review of proposed new material
- "mm/sparse-vmemmap: Provide generic vmemmap_set_pmd() and
vmemmap_check_pmd()" (Muchun Song)
Provide generic versions of these two functions so the four
arch-specific implementations can be removed.
- "mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap
device" (Youngjun Park)
Address a uswsusp-vs-swapoff race and reduces the swap device
reference taking/releasing frequency.
- "mm/hmm: A fix and a selftest" (Dev Jain)
* tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
selftests/mm/hmm-tests: test pagemap reads of PMD device-private entries
fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
lib/test_hmm: check alloc_page_vma() return value and handle OOM
mm/compaction: cap compact_gap() at COMPACT_CLUSTER_MAX
mm/swap: remove redundant swap device reference in alloc/free
mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap device
mm/filemap: use folio_next_index() for start
vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()
sparc/mm: drop vmemmap_check_pmd helper and use generic code
loongarch/mm: drop vmemmap_check_pmd helper and use generic code
riscv/mm: drop vmemmap_pmd helpers and use generic code
arm64/mm: drop vmemmap_pmd helpers and use generic code
mm/sparse-vmemmap: provide generic vmemmap_set_pmd() and vmemmap_check_pmd()
rust: page: mark Page::nid as inline
userfaultfd: build __VMA_UFFD_FLAGS from config-gated masks
userfaultfd: gate must_wait writability check on pte_present()
mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade
fs/proc/task_mmu: fix hugetlb self-deadlock in pagemap_scan_pte_hole()
fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
...
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hw_breakpoint_arch_parse() positions the BAS bit pattern in
hw->ctrl.len with
offset = hw->address & alignment_mask; /* 0..7 */
hw->ctrl.len <<= offset;
ctrl.len is an 8-bit bitfield (struct arch_hw_breakpoint_ctrl::len is
u32 :8), so the shift silently drops any bits past bit 7. For
non-compat AArch64 watchpoints the offset is unbounded relative to
ctrl.len: a perf_event_open(PERF_TYPE_BREAKPOINT) caller asking for
HW_BREAKPOINT_W with bp_addr=page+1 and bp_len=HW_BREAKPOINT_LEN_8
ends up with 0xff << 1 = 0x1fe, stored as 0xfe. The kernel programs
WCR.BAS=0xfe and the hardware watches bytes [1..7] instead of the
requested [1..8] -- the eighth byte is silently dropped. The
syscall still returns success, leaving userspace to discover the
gap by empirical probing.
The same class affects HW_BREAKPOINT_LEN_{2,4} when offset pushes the
high BAS bit past bit 7 (e.g. LEN_4 with offset=5 yields 0xe0
instead of 0x1e0). No memory-safety impact -- the value is masked
into 8 bits before encoding -- but debuggers and perf users observe
missed events on bytes they thought they were watching.
The AArch32 branch immediately above already rejects unrepresentable
(offset, len) combinations via an explicit switch. Mirror that for
the non-compat branch by checking that the shifted pattern fits in
the BAS field, returning -EINVAL when it does not.
GDB and similar debuggers are unaffected by the stricter check.
aarch64_linux_set_debug_regs() already treats EINVAL on
NT_ARM_HW_WATCH as a downgrade signal: it clears
kernel_supports_any_contiguous_range, calls aarch64_downgrade_regs()
to round the BAS up to a legacy 0x01/03/0f/ff mask with an aligned
base, and retries -- the same fallback path that PR-20207 introduced.
The new -EINVAL is therefore reachable only from a raw
perf_event_open() that pairs an unaligned base with an oversized
bp_len, which is precisely the bug.
Reproducer:
struct perf_event_attr a = {
.type = PERF_TYPE_BREAKPOINT, .size = sizeof(a),
.bp_type = HW_BREAKPOINT_W,
.bp_addr = (uintptr_t)(buf + 1),
.bp_len = HW_BREAKPOINT_LEN_8,
.exclude_kernel = 1, .exclude_hv = 1,
};
int fd = perf_event_open(&a, 0, -1, -1, 0);
/* before this fix: succeeds, watches 7 bytes (buf+1..buf+7) */
/* after this fix: fails with EINVAL */
Fixes: b08fb180bb88 ("arm64: Allow hw watchpoint at varied offset from base address")
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Will Deacon <will@kernel.org>
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Pull kvm updates from Paolo Bonzini:
"arm64:
This is a bit of an odd merge window on the KVM/arm64 front. There
is absolutely no new feature in the pull request. It is purely
fixes, because it is simply becoming too hard to review new stuff
when so many AI-fuelled fixes hit the list.
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed as well
- Large set of pKVM fixes, mostly addressing recurring issues around
hypervisor tracking of donated pages in obscure cases where the
donation could fail and leave things in a bizarre state
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned out to
be far more invasive than initially expected..
- Reduce the overhead of L1/L2 context switch by not touching the FP
registers
- Fix the way non-implemented page sizes are dealt with when a guest
insist on using them for S2 translation
- The usual set of low-impact fixes and cleanups all over the map
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX) that
caused the FPU load request
- Some enhancements about interrupt injection
- Some bug fixes and other small changes
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic PTE
updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on a
memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both of
these are preparatory changes for upcoming APX support
- Clean up KVM's register tracking and storage, primarily to prepare
for APX support, which expands the maximum number of GPRs from 16
to 32
- Keep a single copy of the PDPTRs rather than two, since
architecturally there is just one
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor
code gets a chance to handle things like reaping the PML buffer
- Update KVM's view of PV async enabling if and only if the MSR write
fully succeeds
- Fix a variety of issues where the emulator doesn't honor
guest-debug state, and clean up related code along the way
- Synthesize EPT Violation and #NPF "error code" bits when injecting
faults into L1 that didn't originate in hardware (in which case the
VMCS/VMCB doesn't hold relevant information)
- Add support for virtualizing (well, emulating) AMD's flavor of
CPL>0 CPUID faulting
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and
fix a variety of minor bugs along the way
- Fix an OOB memory access due to not checking the VP ID when
handling a Hyper-V PV TLB flush for L2
- Fix a bug in the mediated PMU's handling of fixed counters that
allowed the guest to bypass the PMU event filter
- Allow userspace to return EAGAIN when handling SNP and TDX
hypercalls, so the KVM can forward a "retry" status code to the
guest, and reserve all unused error codes for future usage
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific
logic as possible into the TDX code, and to funnel (almost) all
S-EPT updates into a single chokepoint. The motivation is largely
to prepare for upcoming Dynamic PAMT support, but the cleanups are
nice to have on their own
- Plug a hole in shadow page table handling, where KVM fails to
recursively zap nested EPT/NPT shadow page tables when the nested
hypervisor tears down its own EPT/NPT page tables from the bottom
up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in
the generic section; also run with MBEC enabled even for non-nested
mode
- Use the kernel's "enum pg_level" in the TDX APIs instead of the
TDX-Module's level definitions (which are 0-based)
- Rework the TDX memory APIs to not require/assume that guest memory
is backed by "struct page" (in prepartion for guest_memfd hugepage
support)
- Fix a largely benign bug where KVM TDX would incorrectly state it
could emulate several x2APIC MSRs
- Use the "safe" WRMSR API when proxying LBR MSR writes as the
to-be-written value is guest controlled and completely unvalidated
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in
the generic section; also run with GMET enabled even for non-nested
mode
- Fixes and minor cleanups to GHCB handling, on top of the earlier
work already merged into 7.1-rc
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers
- Add support for virtualizing gPAT (KVM previously just used L1's
PAT when running L2)
- Fix goofs where KVM mishandles side effects (e.g. single-step and
PMC updates) when emulating VMRUN
- Fix a variety of bugs in AVIC's handling of x2APIC MSR
interception, most notably where KVM didn't disable interception of
IRR, ISR, and TMR regs
- Add support for virtualizing Host-Only/Guest-Only bits in the
mediated PMU
- Don't advertise support for unusable VM types, and account for VM
types that are disabled by firmware, e.g. to mitigate security
vulnerabilities
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with
bugs and unnecessarily complicated, and add comprehensive tests
- Clean up and deduplicate the SEV page pinning code
- Fix minor goofs related to writing back CPUID information after
firmware rejects a CPUID page for an SNP vCPU
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to
follow the kernel's nomenclature, e.g. for mmu_notifiers
- Use guard() to cleanup up various KVM+VFIO flows
- Minor cleanups
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a
gmem range to multiple memslots, and fix the test that was supposed
to ensure KVM returns -EEXIST
- Treat memslot binding offsets and sizes as unsigned values to fix a
bug where KVM interprets a large "offset + size" as a negative
value and allows a nonsensical offset
- Use the inode number instead of the page offset for the NUMA
interleaving index to fix a bug where the effective index would
jump by two for consecutive pages (the caller also adds in the page
offset)
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the
first pass, as always waiting only 1ms hid a KVM RISC-V bug as the
test reaped the bitmap before KVM could build up enough state to
hit the bug
- A pile of one-off fixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (326 commits)
KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level
KVM: x86: Fix shadow paging use-after-free due to unexpected role
KVM: s390: Introducing kvm_arch_set_irq_inatomic fast inject
KVM: s390: Enable adapter_indicators_set to use mapped pages
KVM: s390: Add map/unmap ioctl and clean mappings post-guest
riscv: kvm: Use endian-specific __lelong for NACL shared memory
KVM: selftests: access_tracking_perf_test: bump number of NUMA nodes to 32
KVM: s390: vsie: Implement ASTFLEIE facility 2
KVM: s390: vsie: Refactor handle_stfle
s390/sclp: Detect ASTFLEIE 2 facility
KVM: s390: Minor refactor of base/ext facility lists
KVM: x86/mmu: move pdptrs out of the MMU
KVM: x86: check that kvm_handle_invpcid is only invoked with shadow paging
KVM: nSVM: invalidate cached PDPTRs across nested NPT transitions
KVM: nVMX: remove unnecessary code in prepare_vmcs02_rare
KVM: x86: remove nested_mmu from mmu_is_nested()
KVM: arm64: vgic-its: Make ABI commit helpers return void
KVM: s390: Initialize KVM_S390_GET_CMMA_BITS memory
LoongArch: KVM: Add missing slots_lock for device register/unregister
LoongArch: KVM: Validate irqchip index in irqfd routing
...
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|
Pull MIPS updates from Thomas Bogendoerfer:
- use software nodes for GPIO code
- cleanups and fixes
* tag 'mips_7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (41 commits)
mips: select legacy gpiolib interfaces where used
MIPS: lib: Remove '.hidden' for local symbols
MIPS: VDSO: Avoid including .got in dynamic segment
MIPS: smp: report dying CPU to RCU in stop_this_cpu()
MIPS: kernel: proc: Delete unnecessary braces in show_cpuinfo()
MIPS: kernel: proc: Use seq_putc() calls in show_cpuinfo()
mips: sched: Fix CPUMASK_OFFSTACK memory corruption
MIPS: mm: Fix out-of-bounds write in maar_res_walk()
MIPS: ath79: reduce ARCH_DMA_MINALIGN
mips: dts: ar9132: fix wdt node name
mips: Remove remaining defconfig references to the pktcdvd driver
MIPS: mm: remove comment referring to removed CONFIG_MIPS_CMP
MIPS: alchemy: db1300: switch to static device properties
MIPS: alchemy: gpr: switch to static device properties
MIPS: alchemy: db1000: use nodes attached to GPIO chips in properties
MIPS: alchemy: mtx1: attach software nodes to GPIO chips
MIPS: alchemy: provide visible function prototypes to board files
MIPS: alchemy: platform: add missing include
MIPS: ip22-gio: do not export device release function
MIPS: ip22-gio: switch to dynamic root device
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:
- Enable GENERIC_ENTRY feature
- Add missing property in DTS for mpc83xx platform
- Enable building of DTB based on platfrom Kconfig
- Add powerpc64 JIT support for timed may_goto
- Add timeout to RTAS busy-wait loops
- Simplify cpumask api usage for cpuinfo display
- implement get_direction() in cpm1 (8xx platform)
- MAINTAINERS file update for power VMX AES entries
- Fixes to handle preempt count
- Restore KUAP registers on syscall restart exit
- define MIN_RMA in bytes rather than MB
- misc fixes and cleanups
Thanks to Aboorva Devarajan, Adriano Vero, Amit Machhiwal, Anushree
Mathur, Bartosz Golaszewski, Christophe Leroy (CS GROUP), David Gow,
Jinjie Ruan, J. Neuschäfer, Linus Walleij, Mahesh Salgaonkar, Mukesh
Kumar Chaurasiya (IBM), Ritesh Harjani (IBM), Saket Kumar Bhaskar,
Samir M, Sayali Patil, Shirisha G, Shivang Upadhyay, Shrikanth Hegde,
Sourabh Jain, Thorsten Blum, Venkat Rao Bagalkote, and Yury Norov.
* tag 'powerpc-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (32 commits)
powerpc/fadump: define MIN_RMA in bytes rather than MB
powerpc: Restore KUAP registers on syscall restart exit
powerpc/kexec: fix double get_cpu() imbalance in kexec_prepare_cpus
powerpc/powernv: fix preempt count leak in pnv_kexec_wait_secondaries_down
powerpc/perf: fix preempt count underflow in fsl_emb_pmu_del
powerpc/boot: Allow text relocations for pseries wrapper with binutils 2.46+
powerpc: Simplify access_ok()
powerpc/entry: Disable interrupts before irqentry_exit
powerpc/8xx: implement get_direction() in cpm1
powerpc/pseries/lparcfg: Replace deprecated strcpy in parse_system_parameter_string
powerpc: Fix indentation and replace typedef with struct name
powerpc/rtas: Replace one-element array with flexible array member
powerpc: use sysfs_emit{_at} in sysfs show functions
MAINTAINERS: powerpc: update VMX AES entries
ppc/fadump: invoke kmsg_dump in fadump panic path
powerpc/xive: Add warning if target CPU not found
powerpc/perf: Use cpumask_intersects api for checking disable path
powerpc: Simplify cpumask api usage for cpuinfo display
powerpc: Use cpumask_next_wrap instead
powerpc/fadump: Add timeout to RTAS busy-wait loops
...
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I came a cross a missing declaration in a randconfig build:
arch/arm64/kernel/static_call.c:16:5: error: call to undeclared function 'aarch64_insn_adrp_get_offset'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
16 | aarch64_insn_adrp_get_offset(le32_to_cpup(tramp + 4)) +
| ^
Include the header that contains this definition explicitly,
rather than relying on it to come indirectly through another
header.
Fixes: 54ac9ff8f119 ("arm64: Use static call trampolines when kCFI is enabled")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Will Deacon <will@kernel.org>
|
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GPIO software node lookup should rely exclusively on matching the
addresses of the referenced firmware nodes. Commit e5d527be7e69 ("gpio:
swnode: don't use the swnode's name as the key for GPIO lookup") tried to
enforce this but had to be reverted: it broke existing users who abuse the
software node mechanism by creating "dummy" software nodes named after the
device they want to get GPIOs from, without ever attaching them to the
actual GPIO devices. Those users rely on GPIOLIB matching the label of the
GPIO controller against the name of the software node rather than on a real
firmware node link.
Un-reverting e5d527be7e69 therefore requires converting all such users to
real firmware node lookup. The geode board setup is one of them: it
references the cs5535 GPIO controller through a locally-defined dummy node
named "cs5535-gpio".
The cs5535 MFD driver now exports the software node associated with its
GPIO controller cell as cs5535_gpio_swnode. Use it as the target of the
GPIO software node references in geode-common.c instead of the dummy node,
so the lookup resolves by firmware node address. As the referenced node
must exist at lookup time, make the cs5535 driver built-in for all boards
selecting GEODE_COMMON (depend on GPIO_CS5535=y). The node is exported in
the "CS5535" namespace, so import it in this module.
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20260611-cs5535-swnode-v3-1-2b0c517c0c03@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
- Prevent get_free_mem_region() from returning regions that are
unmappable in certain circumstances by defining
DIRECT_MAP_PHYSMEM_END for RISC-V
- Fix an early boot problem with kexec_file when the amount of
installed physical memory installed on the system exceeds the direct
map size, which is possible in certain RISC-V virtual memory modes
- Unconditionally sfence.vma in the new vmalloc area handling code in
the page fault handler, since even the presence of Svvptc doesn't
guarantee that the CPU won't immediately fault again after the
exception handler completes and subsequently crash
- Fix ftrace_graph_ret_addr() to use the correct task pointer (aligning
with what other architectures do)
- Fix the misaligned access performance checking code in cases when
performance is specified on the kernel command line and when CPUs
have been brought offline and back online
- Get rid of a bogus address offset in the non-frame-pointer version of
walk_stackframe(), aligning it with the frame pointer-based code
- Fix a RISC-V kfence issue causing bogus use-after-free warnings
- Add ARCH_HAS_CC_CAN_LINK for RISC-V, which needs different compiler
command line flags than other architectures
- Implement _THIS_IP_ using RISC-V-specific assembly, which seems to be
less brittle (from a compiler point of view) than taking the address
of a label
- Reduce kernel startup overhead by defining
HAVE_BUILDTIME_MCOUNT_SORT, since arch/riscv meets all the
requirements
- Patch the CFI vDSO during alternatives processing, not only the
standard vDSO
- Fix a potential memory leak in the cacheinfo code
- Clean up kernel/setup.c:add_resource() to pass along the return value
from insert_resource() and to improve the display of resource ranges
- Clean up our purgatory.[ch] by aligning our purgatory() prototype to
what's in arch/x86, and by cleaning up verify_sha256_digest()
- Clean up cpu_is_stopped() to align its function a little more closely
to its name
- Replace some unbounded string function usage in get_early_cmdline()
and the ptdump code with strscpy()
- Replace sprintf() with sysfs_emit() in cpu_show_ghostwrite() for
safer bounds checking
- Standardize how compiler output flags are specified in the RISC-V
kselftests, aligning them with what other architectures do
- Use the Linux-generic cmp_int() macro in place of an open-coded
"cmp_3way()" macro in kernel/module-sections.c
- Panic early in boot if IRQ handler stacks can't be allocated rather
than pretending to continue normally
- Add support for Eswin SoCs in the RISC-V defconfig
- Remove some unnecessary conditionals in sbi_hsm_hart_{start,stop}()
- Clean up some Kconfig infelicities found by Kconfirm
- Replace an open-coded version of min() in the kexec_elf code with
the standard min() function
* tag 'riscv-for-linus-7.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (36 commits)
riscv: traps_misaligned: Avoid redundant unaligned access speed probe
riscv: misaligned: Fix fast_unaligned_access_speed_key init
riscv: also select ARCH_KEEP_MEMBLOCK if kexec is selected
riscv: alternative: Also patch the CFI vDSO
riscv: alternative: Pass vDSO start as parameter to apply_vdso_alternatives()
riscv: alternative: Use IS_ENABLED() over ifdeffery for apply_vdso_alternatives()
riscv: vdso: Always declare vdso_start symbols
riscv: kexec: use min to simplify riscv_kexec_elf_load
riscv: panic if IRQ handler stacks cannot be allocated
riscv: mm: Unconditionally sfence.vma for spurious fault
riscv: mm: Use the bitmap API for new_valid_map_cpus
riscv: mm: Rename new_vmalloc into new_valid_map_cpus
riscv: kfence: Call mark_new_valid_map() for kfence_unprotect()
riscv: mm: Extract helper mark_new_valid_map()
riscv: stacktrace: Remove bogus -0x4 offset in non-FP walk_stackframe
riscv: cacheinfo: Fix node reference leak in populate_cache_leaves
riscv: kexec_file: Constrain segment placement to direct map
riscv: mm: Define DIRECT_MAP_PHYSMEM_END
riscv: defconfig: Enable Eswin SoCs
riscv: cpu_ops_sbi: No need to be bothered to check ret.error
...
|
|
strncpy() has no remaining callers in the kernel[1]. Remove the
xtensa-specific inline assembly implementation and __HAVE_ARCH_STRNCPY
define, falling back to the generic version in lib/string.c.
Link: https://github.com/KSPP/linux/issues/90 [1]
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
strncpy() has no remaining callers in the kernel[1]. Remove the
x86-32-specific inline assembly implementation and __HAVE_ARCH_STRNCPY
define, falling back to the generic version in lib/string.c.
Link: https://github.com/KSPP/linux/issues/90 [1]
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
strncpy() has no remaining callers in the kernel[1]. Remove the
powerpc-specific assembly implementation from both the kernel
(arch/powerpc/lib/string.S) and the boot wrapper
(arch/powerpc/boot/string.S), along with the __HAVE_ARCH_STRNCPY
define and declaration, falling back to the generic version in
lib/string.c.
The boot wrapper's strncpy had no callers in arch/powerpc/boot/.
Link: https://github.com/KSPP/linux/issues/90 [1]
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
strncpy() has no remaining callers in the kernel[1]. Remove the
m68k-specific inline assembly implementation and __HAVE_ARCH_STRNCPY
define, falling back to the generic version in lib/string.c.
Link: https://github.com/KSPP/linux/issues/90 [1]
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
strncpy() has no remaining callers in the kernel[1]. Remove the
alpha-specific assembly implementation and __HAVE_ARCH_STRNCPY define,
falling back to the generic version in lib/string.c.
The __stxncpy helper (stxncpy.S/ev6-stxncpy.S) is retained as it is
still used by strncat.
Link: https://github.com/KSPP/linux/issues/90 [1]
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
Uwe Kleine-König reported this build breakage caused by a recent commit
which provides arch specific kcpustat_field_idle()/kcpustat_field_iowait()
functions:
ERROR: modpost: "arch_kcpustat_field_idle" [drivers/leds/trigger/ledtrig-activity.ko] undefined!
ERROR: modpost: "arch_kcpustat_field_iowait" [drivers/leds/trigger/ledtrig-activity.ko] undefined!
Fix this by adding the missing EXPORT_SYMBOL_GPL().
Fixes: 670e057744e0 ("s390/idle: Provide arch specific kcpustat_field_idle()/kcpustat_field_iowait()")
Reported-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Closes: https://lore.kernel.org/r/ajKsG0JP6qTssQBX@monoceros
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Tested-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
|
|
Several comments transpose the letters in "assigned" and "unsigned",
spelling them with "sing" instead of "sign". Correct all of them.
Of these, the misspelling of "assigned" is not yet flagged by checkpatch,
so also add it to scripts/spelling.txt.
The remaining matches of `grep -ri singed` are RISINGEDGE register and
enum names, not typos.
Link: https://lore.kernel.org/20260612181633.734458-1-iamsharduld@gmail.com
Signed-off-by: Shardul Deshpande <iamsharduld@gmail.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
"Core Code:
- Fix dma-iommu scatterlist length handling in the P2PDMA path
- Extend the generic IOMMU page-table code with detailed gather
support for more precise invalidations
- Add pending-gather tracking to generic page-table invalidation
handling
- Add support for smaller virtual address sizes in the generic AMDv1
page-table format, including KUnit coverage
- Fix page-size bitmap calculation for smaller VA configurations
- Rework Arm io-pgtable allocation/freeing to consistently use the
iommu-pages API and address-conversion helpers
- Add PCI ATS infrastructure for devices that require ATS, including
always-on ATS handling for pre-CXL devices
AMD IOMMU:
- Fix several IOTLB invalidation details, including PDE handling,
flush-all behavior, and command address encoding
- Honor IVINFO[VASIZE] when deriving address limits
- Fix premature loop termination in init_iommu_one()
- Add Hygon family 18h model 4h IOAPIC support
- Clean up legacy-mode handling, stale comments, dead IVMD
exclusion-range code, and unused address-size macros
Arm SMMU / Arm SMMU v3:
- SMMUv2:
- Device-tree binding updates for Qualcomm Hawi, Nord and Shikra
SoCs
- Constrain the clocks which can be specified for recent Qualcomm
SoCs
- Fix broken compatible string for Qualcomm prefetcher
configuration an add new entry for the Glymur MDSS
- Ensure SMMU is powered-up when writing context bank for Adreno
client
- SMMUv3:
- Fix off-by-one in queue allocation retry loop
- Enable hardware update of access/dirty bits from the SMMU
- Re-jig command construction to use separate inline helpers for
each command type
Intel VT-d:
- Add the PCI segment number to DMA fault messages
- Improve support for non-PRI mode SVA
- Ensure atomicity during context entry teardown
- Fix RB-tree corruption in the probe error path
RISC-V IOMMU:
- Add NAPOT range invalidation support
- Use detailed gather information for invalidation decisions
- Compute the best stride for single invalidations
- Advertise Svpbmt support to the generic page-table code
- Add capability definitions and clean up command macro encoding
VeriSilicon IOMMU:
- Add a new VeriSilicon IOMMU driver
- Add devicetree binding documentation and MAINTAINERS coverage
- Add the RK3588 VeriSilicon IOMMU node
- Apply small cleanups and warning fixes in the new driver
Rockchip IOMMU:
- Disable the fetch DTE time limit
Apple DART:
- Correct a stale CONFIG_PCIE_APPLE macro name in a comment"
* tag 'iommu-updates-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (66 commits)
iommu/dma-iommu: Fix wrong scatterlist length assignment in P2PDMA path
iommu/amd: Control INVALIDATE_IOMMU_PAGES PDE from the gather
iommu/amd: Make CMD_INV_IOMMU_ALL_PAGES_ADDRESS match the spec
iommu/amd: Have amd_iommu_domain_flush_pages() use last
iommu/amd: Pass last in through to build_inv_address()
iommu/amd: Simplify build_inv_address()
iommu/apple-dart: correct CONFIG_PCIE_APPLE macro name in comment
iommu/vt-d: Fix RB-tree corruption in probe error path
iommu/vt-d: Improve IOMMU fault information
iommu/vt-d: Remove typo from pasid_pte_config_nested()
iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry
iommu/vt-d: Avoid WARNING in sva unbind path
dt-bindings: arm-smmu: Correct and add constraints for Hawi, Shikra and Kaanapali
dt-bindings: arm-smmu: Add compatible for Qualcomm Nord SoC
iommu/amd: Don't split flush for amd_iommu_domain_flush_all()
iommu/rockchip: disable fetch dte time limit
iommu/arm-smmu-v3: Allow ATS to be always on
PCI: Allow ATS to be always on for pre-CXL devices
PCI: Add pci_ats_required() for CXL.cache capable devices
iommu/vsi: Use list_for_each_entry()
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
- an update and config refresh for the stmark board
- fixes and preparatory work for supporting the DAC hardware block of
the m5441x ColdFire SoC
- forced configuration fix for legacy gpiolib when enabling the mcfqspi
driver
- new defconfigs for the M5329EVB, M54418EVB and NETtel boards to give
better build test coverage For ColdFire parts
- cleanup to register access code in the core init and setup code for
ColdFire SoC be consistent, instead of a varied use of
__raw_readX/__raw_write and straight readX/writeX.
This is working towards fixing the non-standard endianess of the
non-MMU m68k readX/writeX functions.
* tag 'm68knommu-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (22 commits)
m68k: stmark2: enable DACs outputs
m68k: stmark2: add mcf5441x DAC platform devices
m68k: stmark2: use ioport.h macros for resources
m68k: mcf5441x: add CCR MISCCR2 bitfields
m68k: mcf5441x: add CCM registers
m68k: add DAC modules base addresses
m68k: mcf5441x: add clock for DAC channel 1
m68k: mcf5441x: fix clocks numbering
m68k: coldfire: use ColdFire specifc IO access in SoC code
m68k: coldfire: use ColdFire specifc IO access in system code
m68k: coldfire: rename timer register access defines
m68k: coldfire: use ColdFire specifc IO access in timer code
m68k: coldfire: use ColdFire specifc IO access in interrupt code
m68k: coldfire: use ColdFire specific IO access in headers
m68k: coldfire: create IO access functions for internal registers
m68k: defconfig: update all ColdFire defconfigs
m68k: defconfig: add config for SnapGear/NETtel board
m68k: defconfig: add config for M54418EVB board
m68k: defconfig: add config for M5329EVB board
m68k: coldfire: select legacy gpiolib interface for mcfqspi
...
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Pull arm SoC code updates from Arnd Bergmann:
"The largest addition here is the revived support for the ZTE ZX SoC
platform, though this mostly documentation.
The other changes are code cleanups that deal with continued
conversion of the GPIO library away from GPIO numbers to descriptors
and a few minor bugfixes"
* tag 'soc-arm-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: Add Axiado reviewer and Maintainers
ARM: remove the last few uses of do_bad_IRQ()
ARM: imx31: Fix IIM mapping leak in revision check
ARM: imx3: Fix CCM node reference leak
ARM: orion5x: update board check in mss2_pci_init() to use the DT
arm: mvebu_v5_defconfig: remove stale MACH_LINKSTATION_LSCHL reference
ARM: mvebu: simplify of_node_put calls
ARM: mvebu: drop unnecessary NULL check
arm: boot: ep93xx: don't rely on machine_is_*() for removed board files
ARM: zte: clean up zx297520v3 doc. warnings
arm64: Kconfig: drop unneeded dependency on OF_GPIO for ARCH_MVEBU
firmware: imx: sm-misc: Make scmi_imx_misc_ctrl_nb variable static
ARM: zte: Add zx297520v3 platform support
ARM: pxa: pxa27x: attach software node to its target GPIO controller
ARM: pxa: pxa25x: attach software node to its target GPIO controller
ARM: pxa: spitz: attach software nodes to their target GPIO controllers
ARM: pxa: statify platform device definitions in spitz board file
ARM: omap2: simplify allocation for omap_device
ARM: select legacy gpiolib interfaces where used
ARM: s3c: use gpio lookup table for LEDs
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
"The main change this time is a cleanup series from Krzysztof Kozlowski
that updates the defconfig files to be more in sync with changes to
the Kconfig files that moved options around or removed the completely.
In addition, a number of drivers get enabled, in order to support more
hardware out of the box, as usual"
* tag 'soc-defconfig-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: defconfig: enable BST SDHCI controller
arm64: configs: Update defconfig for AST2700 platform support
ARM: multi_v7_defconfig: Enable dma-buf heaps
ARM: configs: Drop duplicated CONFIG_EXT4_FS
arm64: defconfig: Enable DP83822 PHY driver
ARM: configs: at91: sama7: add sama7d65 i3c-hci
arm64: defconfig: Enable PCI M.2 power sequencing driver
arm64: defconfig: Enable CIX Sky1 pinctrl, PCIe host, and Cadence GPIO
ARM: multi_v7_defconfig: Correct QCOM_RPMH and QCOM_RPMHPD
ARM: multi_v7_defconfig: Cleanup redundant options
ARM: configs: Drop redundant SND_ATMEL_SOC
ARM: configs: Drop redundant I2C_DESIGNWARE_PLATFORM
ARM: multi_v7_defconfig: Move entries to match savedefconfig
arm64: defconfig: Switch Ethernet drivers to modules
arm64: defconfig: Drop unused Ethernet vendors
arm64: defconfig: Drop default or selected drivers
arm64: defconfig: Drop unused legacy netfilter options
arm64: defconfig: Move entries to match savedefconfig
pinctrl: qcom: Make important drivers default (2)
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Pull SoC devicetree updates from Arnd Bergmann:
"There are fewer devicetree updates this time that the last few ones,
with five SoC types getting added:
- Qualcomm Dragonwing IPQ9650 is a new wireless networking SoC using
four Cortex-A55 and one Cortex-A78 core, which is a significant
upgrade from older generations
- ZTE zx297520v3 is an older low-end wireless SoC using a single
Cortex-A53 core, which so far can only run 32-bit kernels. This
brings back the ZX family of chips that was removed in 2021 after
support for the original zx296702 and zx296718 chips was never
completed.
- Renesas R-Car M3Le (R8A779MD) is a variant of the R-Car M3-N
(R8A77965) automotive SoC.
- Apple t8122 (M3) is the 2023 generation of their laptop SoCs, which
has now been reverse-engineered to the point of having initial
kernel support for five laptop models.
- ASPEED AST27xx is their first baseboard managment controller using
a 64-bit core, the Cortex-A35, following earlier generations using
ARMv5/v6/v7 CPUs.
These all come with one or more initial boards, and in total there are
39 new boards getting added across SoC families, including:
- Two NAS boxes using the old Cortina Systems Gemini SoC based on an
ARMv4 FA526 CPU core
- 18 industrial embedded boards using NXP i.MX6/8/9 and LX2160A SoCs
from Variscite, Toradex and SolidRun, plus a number of overlays for
combinations with additional boards
- One new carrier board and SoM using TI K3 AM62x, in addition to new
overlays for older SoMs
- Two new boards using Spacemit K3 (no relation with TI) RISC-V SoCs.
- Three phones from Google, Nothing and Motorola, all using Qualcomm
Snapdragon SoCs
- AST26xx BMC support for two server boards
While there is still a significant number of patches improving
hardware support for the existing boards across vendors (NXP,
Qualcomm, Renesas, Rockchips, Mediatek, ...), a much smaller number
of cleanups and warning fixes have made it in this time"
* tag 'soc-dt-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (665 commits)
arm64: dts: aspeed: Fix duplicate pinctrl labels and address scheme
arm64: dts: bst: enable eMMC controller in C1200
dt-bindings: display/lvds-codec: add ti,sn65lvds93
arm64: dts: allwinner: a523: Add missing GPIO interrupt
arm64: dts: lx2160a-rev2: avoid 32-bit pcie window system ram overlap
arm64: dts: aspeed: Add initial AST27xx SoC device tree
arm64: Kconfig: Add ASPEED SoC family Kconfig support
dt-bindings: arm: aspeed: Add AST2700 board compatible
arm64: dts: allwinner: a523: add gpadc node
arm64: dts: allwinner: Add EL2 virtual timer interrupt
ARM: dts: sun8i: a83t: Add MIPI CSI-2 controller node
dt-bindings: media: sun6i-a31-isp: Add optional interconnect properties
dt-bindings: media: sun6i-a31-csi: Add optional interconnect properties
arm64: dts: imx{91,93}-phyboard-segin: Add peb-av-18 overlays
arm64: dts: imx93-var-som-symphony: enable ADC
arm64: dts: imx93-var-som-symphony: enable TPM3 PWM
arm64: dts: imx93-var-som-symphony: keep RGB_SEL low
arm64: dts: imx93-var-som-symphony: enable UART7
arm64: dts: imx93-var-som-symphony: add TPM support
arm64: dts: imx91-var-som-symphony: fix RGB_SEL handling
...
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kvm_check_illegal_exception_return() sourced the flags {N,Z,C,V} and
masks {D,A,I,F} of the resulting PSTATE from the current PSTATE, but
R_VWJHB takes them from the SPSR being returned to and leaves
PSTATE.{EL,SP,nRW} (and EXLOCK when FEAT_GCS) unchanged. PAN, ALLINT
and PM were not applied at all.
Build the PSTATE by taking those fields from the SPSR while preserving
EL, SP, nRW and EXLOCK from the current PSTATE, then set IL.
Fixes: 47f3a2fc765a ("KVM: arm64: nv: Support virtual EL2 exceptions")
Suggested-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/all/86wlvxs5r0.wl-maz@kernel.org/
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260617144907.2972095-1-tabba@google.com
[maz: tidied things a bit]
Signed-off-by: Marc Zyngier <maz@kernel.org>
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When pKVM injects a synchronous exception into a protected guest, it
re-enters without restoring the guest's EL1 sysregs and writes the EL1
exception registers to hardware by hand: ESR_EL1 and ELR_EL1, but not
SPSR_EL1. enter_exception64() sets SPSR_EL1 (the interrupted PSTATE)
only in memory, so the guest's handler reads a stale SPSR_EL1 and
restores the wrong PSTATE on eret.
Write SPSR_EL1 alongside the other exception registers.
Fixes: 6c30bfb18d0b ("KVM: arm64: Add handlers for protected VM System Registers")
Reported-by: sashiko <sashiko@sashiko.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://patch.msgid.link/20260612113414.1022901-1-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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kvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions
but not for SError. enter_exception64() does not write ESR_ELx for any
exception type, so the constructed syndrome is dropped. A guest L2
hypervisor taking a nested SError observes stale ESR_EL2.
This affects both kvm_inject_nested_serror() and the EASE path in
kvm_inject_nested_sea().
Write ESR_EL2 for except_type_serror, matching except_type_sync.
Fixes: 77ee70a07357 ("KVM: arm64: nv: Honor SError exception routing / masking")
Reported-by: sashiko <sashiko@sashiko.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260615131116.390977-1-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
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It is entirely possible for a guest to write to the ZCR_EL2 sysreg alias
while in a nested context, as it is expected if FEAT_NV2 is advertised
to the L1 hypervisor.
Get rid of the bogus WARN which, since the hyp vectors were installed at
this point, has the effect of a hyp_panic...
Cc: stable@vger.kernel.org
Fixes: 0cfc85b8f5cf ("KVM: arm64: nv: Load guest FP state for ZCR_EL2 trap")
Signed-off-by: Oliver Upton <oupton@kernel.org>
Link: https://patch.msgid.link/20260615051324.830045-1-oupton@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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kvm_hyp_handle_mops() resets the single-step state machine as part of
rewinding state for a MOPS exception by modifying vcpu_cpsr() and
writing the result directly into hardware.
In the case of nested virtualization, vcpu_cpsr() is a synthetic value
such that the rest of KVM can deal with vEL2 cleanly. That means the
value requires translation before being written into hardware, which is
unfortunately missing from the MOPS handler.
Fix it by directly modifying SPSR_EL2 and avoiding the synthetic state
altogether, which will be resynchronized on the next 'full' exit back
to KVM.
Fixes: 2de451a329cf ("KVM: arm64: Add handler for MOPS exceptions")
Reported-by: Zhong Wang <wangzhong.c0ss4ck@bytedance.com>
Reported-by: Xuanqing Shi <shixuanqing.11@bytedance.com>
Link: https://lore.kernel.org/all/ajE4lHQevXNHpl1M@Air.local/
Cc: stable@vger.kernel.org
Signed-off-by: Weiming Shi <bestswngs@gmail.com>
Link: https://patch.msgid.link/20260617040820.2194831-2-bestswngs@gmail.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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vgic_prune_ap_list() drops both ap_list_lock and irq_lock while migrating
an interrupt to another vCPU. After reacquiring the locks it only checks
that the affinity is unchanged (target_vcpu == vgic_target_oracle(irq))
before moving the interrupt, which assumes that an interrupt whose affinity
is preserved is still queued on this vCPU's ap_list.
That assumption no longer holds if the interrupt is taken off the ap_list
while the locks are dropped. vgic_flush_pending_lpis() removes the
interrupt from the list and sets irq->vcpu to NULL, but leaves
enabled/pending/target_vcpu untouched. As the interrupt is still enabled
and pending, vgic_target_oracle() returns the same target_vcpu, so the
affinity check passes and list_del() is run a second time on an entry that
has already been removed.
Also check that the interrupt is still assigned to this vCPU
(irq->vcpu == vcpu) before moving it.
Fixes: 0919e84c0fc1 ("KVM: arm/arm64: vgic-new: Add IRQ sync/flush framework")
Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com>
Link: https://patch.msgid.link/aiHnI1mu6SGQrgnz@v4bel
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
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disabling
Hyunwoo Kim reports some really bad races should the following
situation occur:
- LPI-I is pending in vcpu-B's AP list
- vcpu-A writes to vcpu-B's RD to disable its LPIs
- vcpu-C moves I from B to C
If the last two race nicely enough, vgic_prune_ap_list() can drop
the irq and AP list locks, reacquire them, and in the interval
the irq has been freed. UAF follows.
The fix is two-fold:
- Before dropping the irq and ap_list locks, take a reference on
the irq
- Do not try to handle migration of the pending bit: there is no
expectation that this state is retained, as per the architecture
With that, we're sure that the interrupt is still around, and we
safely remove it from the AP list as it has no target at this
stage (unless another interrupt fires, but that's another story).
Reported-by: Hyunwoo Kim <imv4bel@gmail.com>
Tested-by: Hyunwoo Kim <imv4bel@gmail.com>
Link: https://lore.kernel.org/r/ailsCnyoS82r_QRz@v4bel
Link: https://patch.msgid.link/20260615181625.3029352-1-maz@kernel.org
Fixes: 5dd4b924e390a ("KVM: arm/arm64: vgic: Add refcounting for IRQs")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
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Pull bitmap updates from Yury Norov:
"This includes the new FIELD_GET_SIGNED() helper,
bitmap_print_to_pagebuf() removal, RISCV/bitrev support, and a couple
cleanups.
- new handy helper FIELD_GET_SIGNED() (Yury)
- arch test_and_set_bit_lock() and clear_bit_unlock() cleanup (Randy)
- __bf_shf() simplification (Yury)
- bitmap_print_to_pagebuf() removal (Yury)
- RISCV/bitrev conditional support (Jindie, Yury)"
* tag 'bitmap-for-7.2' of https://github.com/norov/linux:
MAINTAINERS: BITOPS: include bitrev.[ch]
arch/riscv: Add bitrev.h file to support rev8 and brev8
bitops: Define generic___bitrev8/16/32 for reuse
lib/bitrev: Introduce GENERIC_BITREVERSE
arch: select HAVE_ARCH_BITREVERSE conditionally on BITREVERSE
bitmap: fix find helper documentation
bitmap: drop bitmap_print_to_pagebuf()
cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()
bitfield: wire __bf_shf to __builtin_ctzll
bitops: use common function parameter names
ptp: switch to using FIELD_GET_SIGNED()
rtc: rv3032: switch to using FIELD_GET_SIGNED()
wifi: rtw89: switch to using FIELD_GET_SIGNED()
iio: mcp9600: switch to using FIELD_GET_SIGNED()
iio: pressure: bmp280: switch to using FIELD_GET_SIGNED()
iio: magnetometer: yas530: switch to using FIELD_GET_SIGNED()
iio: intel_dc_ti_adc: switch to using FIELD_GET_SIGNED()
x86/extable: switch to using FIELD_GET_SIGNED()
bitfield: add FIELD_GET_SIGNED()
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git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull modules updates from Sami Tolvanen:
- Add a missing return value check for module_extend_max_pages() to
prevent a kernel oops on memory allocation failure.
- Force sh_addr to 0 for architecture-specific module sections on arm,
arm64, m68k, and riscv. This prevents non-zero section addresses when
linking modules with ld.bfd -r, which may cause tools to misbehave
and result in worse compressibility.
- Replace pr_warn! with pr_warn_once! for set_param null pointer
warnings in Rust abstractions, now that the _once variant is
available.
* tag 'modules-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
rust: module_param: add missing newline to pr_warn_once
module: decompress: check return value of module_extend_max_pages()
rust: module_param: use `pr_warn_once!` for null pointer warning
module, riscv: force sh_addr=0 for arch-specific sections
module, m68k: force sh_addr=0 for arch-specific sections
module, arm64: force sh_addr=0 for arch-specific sections
module, arm: force sh_addr=0 for arch-specific sections
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Unsurprisingly, we've had a fairly busy development cycle with various
fixes and enhancements. While the majority of changes consist of
device-specific fixes, a significant number of cleanups, hardening,
and modernizations have been applied to the core frameworks as well.
Below are some highlights:
ALSA Core:
- Hardening, race condition, and UAF/leak fixes in the ALSA timer and
sequencer cores
- Widespread adoption of flexible array members across core
structures
- Integration of new simple refcount helper functions to simplify
code
ASoC Core:
- Introduction of a unified SoundWire enumeration helper to clean up
redundant device initialization across codecs
- Enhancements to SDCA support, including handling devices with
multiple functions of the same type and proper jack reporting masks
- Continued refactoring of ASoC component debugfs and DAPM structures
- Simplification and improvements to the format auto-selection
mechanism
- Added shared BCLK rate constraints for cross-DAI coordination
ASoC Platforms & Codecs:
- Initial bring-up and power management support for AMD ACP 7.x
- Support for Everest Semi ES9356 (SDCA), Mediatek MT2701 (on-chip
HDMI) and MT8196 SoCs, Renesas RZ/G3E, SpacemiT K3, and TI
TAC5xx2/TAS67524
- Added a new generic driver for GPIO-driven amplifiers
- Continued mass conversion of locking code to guard() helpers across
numerous platform drivers (MediaTek, Rockchip, STM32, Samsung, etc)
- Cleanup of legacy non-DT platform data and rollbacks for obsolete
SH Ecovec24/7724se boards
HD- and USB-Audio:
- Device-specific hardware quirks and fixes for various Realtek
HD-Audio devices (Lenovo, HP, ASUS, Acer, Clevo)
- Refinements to Qualcomm USB-audio offloading support
- Front-panel controls and autogain status support for Scarlett Gen 4
- Quirks for XIBERIA (K03S), Sennheiser (MOMENTUM 3), Edifier
(MF200), Novation (Mininova), and Behringer (Flow 8) USB-audio
devices
- Improved robustness by rolling back or propagating write errors to
the mixer control caches (Babyface Pro, US-16x08, Scarlett)
Others:
- Support for the HT-Omega eClaro PCI sound card in the Oxygen driver
- Robustness improvements and fixes for Virtio-audio, Xen-front, and
legacy OSS dmasound drivers"
* tag 'sound-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (483 commits)
ALSA: usb-audio: Add iface reset and delay quirk for XIBERIA K03S
ALSA: hda/realtek: Add quirk for Lenovo Xiaoxin 14 GT
ALSA: hda/realtek: Add CS35L41 I2C quirk for ASUS UM3405GA
ALSA: timer: Fix racy timeri->timer changes with rwlock
ALSA: core: Fix unintuitive behavior of snd_power_ref_and_wait()
ALSA: seq: avoid stale FIFO cells during resize
ALSA: seq: oss: Serialize readq reset state with q->lock
ASoC: dt-bindings: Fix RT5677 "realtek,gpio-config" type
ASoC: audio-graph-card2: recommend to use auto select DAI format
ASoC: update auto format selection method
ASoC: renesas: rcar: update auto select format
ASoC: codecs: pcm3168a: update auto select format
ASoC: codecs: ak4619: update auto select format
ASoC: codecs: peb2466: don't use array if single pattern
ASoC: codecs: idt821034: don't use array if single pattern
ASoC: codecs: framer-codec: don't use array if single pattern
ASoC: remove SND_SOC_POSSIBLE_xBx_xFx
ASoC: adau1372: Clear PLL_EN on failed PLL lock without reset GPIO
ALSA: seq: Don't re-bounce the error event
ASoC: bcm: cygnus: use scoped child node loop
...
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Pull drm updates from Dave Airlie:
"Highlights:
- xe: add initial CRI platform support
- amdgpu: initial HDMI 2.1 FRL support
- rust: add some new type concepts for device lifetimes
- scheduler: moves to a fair algorithm and lots of cleanups
But it's mostly the usual mountain of changes across the board.
core:
- add docbook for DRM_IOCTL_SYNCOBJ_EVENTFD
- change signature of drm_connector_attach_hdr_output_metadata_property
- dedup counter and timestamp retrieval in vblank code
- parse AMD VSDB v3 in CTA extension blocks
- add P230, Y7, XYYY2101010, T430, XVUY210101010 formats
- don't call drop master on file close if not master
- use drm_printf_indent in atomic / bridge
- fix 32b format descriptions
- docs: fix toctree
- hdmi: add common TMDS character rates
- fix drm_syncobj_find_fence leak
rust:
- introduce Higher-Ranked lifetime types
- replace drvdata with scoped registration data
- add GPUVM immediate mode abstraction for rust GPU drivers
- introduce DeviceContext type state for drm::Device
bridge:
- clarify drm_bridge_get/put
- create drm_get_bridge_by_endpoint and use it
- analogix_dp: add panel probing
- ite-it6211 - use drm audio hdmi helpers
buddy:
- add lockdep annotations
dp:
- add PR and VRR updates
- mst: fix buffer overflows
- add Adaptive Sync SDP decoding support
- fix OOB reads in dp-mst
ttm:
- bump fpfn/lpfn to 64-bit
scheduler:
- change default to fair scheduler
- map runqueue 1:1 with scheduler
dma-buf:
- port selftests to kunit
- convert dma-buf system/heap allocators to module
- add separate DMABUF_HEAPS_SYSTEM_CC_SHARED Kconfig
udmabuf:
- revert hugetlb support
- fix error with CONFIG_DMA_API_DEBUG
dma-fence:
- fix tracepoints lifetime
- remove unused signal on any support
ras:
- add clear error counter netlink command to drm ras
gpusvm:
- reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
- use IOVA allocations
pagemap:
- use IOVA allocations
panels:
- update to use ref counts
- add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1
- add support for waveshare panels
- CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5,
- IVO, R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F,
- AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels
- Surface Pro 12 Panel
xe:
- add CRI PCI-IDs
- debugfs add multi-lrc info
- engine init cleanup
- PF fair scheduling auto provisioning
- system controller support for CRI/Xe3p
- PXP state machine fixes
- Reset/wedge/unload corner case fixes
- Wedge path memory allocation fixes
- PAT type cleanups
- Reject unsafe PAT for CPU cached memory
- OA improvements for CRI device memory
- kernel doc syntax in xe headers
- xe_drm.h documentation fixes
- include guard cleanups
- VF CCS memory pool
- i915/xe step unification
- Xe3p GT tuning fixes
- forcewake cleanup in GT and GuC
- admin-only PF mode
- enable hwmon energy attributes for CRI
- enable GT_MI_USER_INTERRUPT
- refactor emit functions
- oa workarounds
- multi_queue: allow QUEUE_TIMESTAMP register
- convert stolen memory to ttm range manager
- use xe2 style blitter as a feature flag
- make drm_driver const
- add/use IRQ page to HW engine definition
- fix oops when display disabled
i915:
- enable PIPEDMC_ERROR interrupt
- more common display code refactoring
- restructure DP/HDMI sink format handling
- eliminate FB usage from lowlevel pinning code
- panel replay bw optimization
- integrate sharpness filter into the scaler
- new fb_pin abstraction for xe/i915 fb transparent handling
- skip inactive MST connectors on HDCP
- start switching to display specific registers
- use polling when irq unavailable
- Adaptive-sync SDP prep
amdgpu:
- use drm_display_info for AMD VSDB data
- Initial HDMI 2.1 FRL support
- Initial DCN 4.2.1 support
- GART fixes for non-4k pages
- GC 11.5.6/SDMA 6.4.0/and other new IPs
- GFX9/DCE6/Hawaii/SDMA4/GART/Userq fixes
- Finish support for using multiple SDMA queues for TTM operations
- SWSMU updates
- GC 12.1 updates
- SMU 15.0.8 updates
- DCN 4.2 updates
- DC type conversion fixes
- Enable DC power module
- Replay/PSR updates
- SMU 13.x updates
- Compute queue quantum MQD updates
- ASPM fix
- Align VKMS with common implementation
- DC analog support fixes
- UVD 3 fixes
- TCC harvesting fixes for SI
- GC 11 APU module reload fix
- NBIO 6.3.2 support
- IH 7.1 updates
- DC cursor fixes
- VCN/JPEG user fence fixes
- DC support for connectors without DDC
- Prefer ROM BAR for default VGA device
- DC bandwidth fixes
- Add PTL support for profiler
- Introduce dc_plane_cm and migrate surface update color path
- Add FRL registers for HDMI 2.1
- Restructure VM state machine
- Auxless ALPM support
- GEM_OP locking/warning fixes
- switch to system_dfl_wq
amdkfd:
- GPUVM TLB flush fix
- Hotplug fix
- Boundary check fixes
- SVM fixes
- CRIU fixes
- add profiler API
- MES 12.1 updates
msm:
- core:
- fix shrinker documentation
- IFPC enabled for gen8
- PERFCNTR_CONFIG ioctl support
- GPU:
- reworked UBWC handling
- a810 support
- MDSS:
- add support for Milos platform
- reworked UBWC handling
- DisplayPort:
- reworked HPD handling as prep for MST
- DPU:
- Milos platform support
- reworked UBWC handling
- DSI:
- Milos platform support
nova:
- Hopper/Blackwell enablement (GH100/GB100/GB202)
- FSP support
- 32-bit firmware support
- HAL functions
- refactor GSP boot/unload
- GA100 support
- VBIOS hardening/refactoring
- Adopt higher order lifetime types
tyr:
- define register blocks
- add shmem backed GEM objects
- adopt higher order lifetime types
- move clock cleanup into Drop
radeon:
- Hawaii SMU fixes
- CS parser fix
- use struct drm_edid instead of edid
amdxdna:
- export per-client BO memory via fdinfo
- AIE4 device support
- support medium/lower power modes
- expandable device heap support
- revert read-only user-pointer BO mappings
ivpu:
- support frequency limiting
panthor:
- enable GEM shrinker support
- add eviction and reclaim info to fdinfo
v3d:
- enable runtime PM
mgag200:
- support XRGB1555 + C8
ast:
- support XRGB1555 + C8
- use constants for lots of registers
- fix register handling
imagination:
- fence handling refactoring
nouveau:
- fix sched double call
- expose VBIOS on GSP-RM systems
- add GA100 support
virtio:
- add VIRTIO_GPU_F_BLOB_ALIGNMENT flag
- add deferred mapping support
gud:
- add RCade Display Adapter
hibmc:
- fix no connectors usage
mediatek:
- hdmi: convert error handling
- simplify mtk_crtc allocation
exynos:
- move fbdev emulation to drm client buffers
- use drm format helpers for geometry/size
- adopt core DMA tracking
- fix framebuffer offset handling
renesas:
- add RZ/T2H SOC support
versilicon:
- add cursor plane support
tegra:
- use drm client for framebuffer"
* tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel: (1731 commits)
dma-buf: move system_cc_shared heap under separate Kconfig
accel/amdxdna: Clear sva pointer after unbind
agp/amd64: Fix broken error propagation in agp_amd64_probe()
accel/amdxdna: Require carveout when PASID and force_iova are disabled
drm/amdkfd: always resume_all after suspend_all
drm/amdgpu/gfx: move fault and EOP IRQ get/put to hw_init/hw_fini
drm/amd/display: Consult MCCS FreeSync cap only if requested & supported
drm/amd/pm: Use strscpy in profile mode parsing
drm/amdkfd: Fix infinite loop parsing CRAT with zero subtype length
drm/amdkfd: fix sysfs topology prop length on buffer truncation
drm/amdgpu: drop retry loop in amdgpu_hmm_range_get_pages
drm/amd/pm: bound OD parameter parsing to stack array size
drm/amd/pm: Stop pp_od_clk_voltage emit at PAGE_SIZE
drm/amdkfd: Unwind debug trap enable on copy_to_user failure
drm/amdgpu: validate the mes firmware version for gfx12.1
drm/amdgpu: validate the mes firmware version for gfx12
drm/amdgpu: compare MES firmware version ucode for gfx11
drm/amdkfd: Add bounds check for AMDKFD_IOC_WAIT_EVENTS
drm/amdgpu: restart the CS if some parts of the VM are still invalidated
drm/amd/display: use unsigned types for local pipe and REG_GET counters
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
"Major changes:
- Recover from BPF arena page faults using a scratch page and add
ptep_try_set() for lockless empty-slot installs on x86 and arm64.
This allows BPF kfuncs to access arena pointers directly.
The 'arena_direct_access' stable branch was created for this work
and was pulled into sched-ext and bpf-next trees (Tejun Heo, Kumar
Kartikeya Dwivedi)
- Lift old restriction and support 6+ arguments in BPF programs and
kfuncs on x86 and arm64 (Yonghong Song, Puranjay Mohan)
Other features and fixes:
- Add 24-bit BTF vlen and reclaim unused bits in the BTF UAPI to ease
addition of new BTF kinds (Alan Maguire)
- Raise the maximum BPF call chain depth from 8 to 16 frames (Alexei
Starovoitov)
- Refactor object relationship tracking in the verifier and fix a
dynptr use-after-free bug (Amery Hung)
- Harden the signed program loader and reject exclusive maps as inner
maps (Daniel Borkmann)
- Replace the verifier min/max bounds fields with a circular number
(cnum) representation and improve 32->64 bit range refinements
(Eduard Zingerman)
- Introduce the arena library and runtime (libarena) with a buddy
allocator, rbtree and SPMC queue data structures, ASAN support and
a parallel test harness. Allow subprograms to return arena pointers
and switch to a BTF type-tag based __arena annotation (Emil
Tsalapatis)
- Cache build IDs in the sleepable stackmap path and avoid faultable
build ID reads under mm locks (Ihor Solodrai)
- Introduce the tracing_multi link to attach a single BPF program to
many kernel functions at once. Allow specifying the uprobe_multi
target via FD (Jiri Olsa)
- Extend the bpf_list family of kfuncs with bpf_list_add/del(), and
bpf_list_is_first/is_last/empty() (Kaitao Cheng)
- Extend the BPF syscall with common attributes support for
prog_load, btf_load and map_create (Leon Hwang)
- Wrap rhashtable as BPF map (Mykyta Yatsenko, Herbert Xu)
- Add sleepable support for tracepoint programs and fix deadlocks in
LRU map due to NMI reentry (Mykyta Yatsenko)
- Fix OOB access in bpf_flow_keys, fix nullness analysis of inner
arrays, enforce write checks for global subprograms (Nuoqi Gui)
- Report the maximum combined stack depth and print a breakdown of
instructions processed per subprogram (Paul Chaignon)
- Add an XDP load-balancer benchmark and arm64 JIT support for stack
arguments (Puranjay Mohan)
- Add kfuncs to traverse over wakeup_sources (Samuel Wu)
- Allow sleepable BPF programs to use LPM trie maps directly (Vlad
Poenaru)
- Many more fixes and cleanups across the verifier, BTF, sockmap,
devmap, bpffs, security hooks, s390/riscv/loongarch JITs,
rqspinlock, libbpf, bpftool, selftests"
* tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (336 commits)
selftests/bpf: Work around llvm stack overflow in crypto progs
selftests/bpf: add test for bpf_msg_pop_data() overflow
bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check
sockmap: Fix use-after-free in udp_bpf_recvmsg()
bpf, sockmap: keep sk_msg copy state in sync
bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data()
bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()
selftsets/bpf: Retry map update on helper_fill_hashmap()
selftests/bpf: Add test for sleepable lsm_cgroup rejection
selftests/bpf: Add test to verify the fix for bpf_setsockopt() helper
bpf: Fix bpf_get/setsockopt to tos for ipv4-mapped ipv6 socket
selftests/bpf: Avoid static LLVM linking for cross builds
selftests/bpf: Use common CFLAGS for urandom_read
selftests/bpf: Initialize operation name before use
tools/bpf: build: Append extra cflags
libbpf: Initialize CFLAGS before including Makefile.include
bpftool: Append extra host flags
bpftool: Avoid adding EXTRA_CFLAGS to HOST_CFLAGS
bpftool: Pass host flags to bootstrap libbpf
selftests/bpf: correct CONFIG_PPC64 macro name in comment
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Work on removing rtnl_lock protection throughout the stack
continues. In this chapter:
- don't use rtnl_lock for IPv6 multicast routing configuration
- don't take rtnl_lock in ethtool for modern drivers
- prepare Qdisc dump callbacks for rtnl_lock removal
- Support dumping just ifindex + name of all interfaces, under RCU.
It's a common operation for Netlink CLI tools (when translating
names to ifindexes) and previously required full rtnl_lock.
- Support dumping qdiscs and page pools for a specific netdev. Even
tho user space wants a dump of all netdevs, most of the time, the
OOO programming model results in repeating the dump for each
netdev. Which, in absence of a cache, leads to a O(n^2) behavior.
- Flush nexthops once on multi-nexthop removal (e.g. when device goes
down), another O(n^2) -> O(n) improvement.
- Rehash locally generated traffic to a different nexthop on
retransmit timeout.
- Honor oif when choosing nexthop for locally generated IPv6 traffic.
- Convert TCP Auth Option to crypto library, and drop non-RFC algos.
- Increase subflow limits in MPTCP to 64 and endpoint limit to 256.
- Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
to selectively skip reporting of the standard TCP Timestamp option,
because they won't fit into the header space together (12 + 30 >
40).
- Support using bridge neighbor suppression, Duplicate Address
Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
deployments, e.g. VXLAN fabrics (IPv4 and IPv6).
- Improve link state reporting for upper netdevs (e.g. macvlan) over
tunnel devices (again, mostly for EVPN deployments).
- Support binding GENEVE tunnels to a local address.
- Speed up UDP tunnel destruction (remove one synchronize_rcu()).
- Support exponential field encoding in multicast (IGMPv3 and MLDv2).
- Support attaching PSP crypto offload to containers (veth, netkit).
- Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
migrating individual IPsec SAs independently of their policies.
The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
migration, lacks SPI for unique SA identification, and cannot
express reqid changes or migrate Transport mode selectors.
The new interface identifies the SA via SPI and mark, supports
reqid changes, address family changes, encap removal, and uses an
atomic create+install flow under x->lock to prevent SN/IV reuse
during AEAD SA migration.
- Implement GRO/GSO support for PPPoE.
- Convert sockopt callbacks in a number of protocols to iov_iter.
Cross-tree stuff:
- Remove support for Crypto TFM cloning (unblocked after the TCP Auth
Option rework). This feature regressed performance for all crypto
API users, since it changed crypto transformation objects into
reference-counted objects.
- Add FCrypt-PCBC implementation to rxrpc and remove it from the
global crypto API as obsolete and insecure.
Wireless:
- Major rework of station bandwidth handling, fixing issues with
lower capability than AP.
- Cleanups for EMLSR spec issues (drafts differed).
- More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
schedule improvements, multi-station etc.)
- Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
(e.g. non-primary channel access, UHR DBE support).
- Fine Timing Measurement ranging (i.e. distance measurement) APIs.
Netfilter:
- Use per-rule hash initval in nf_conncount. This avoids unnecessary
lock contention with short keys (e.g. conntrack zones) in different
namespaces.
- Various safety improvements, both in packet parsing and object
lifetimes. Notably add refcounts to conntrack timeout policy.
Deletions:
- Remove TLS + sockmap integration. TLS wants to pin user pages to
avoid a copy, and sockmap wants to write to the input stream. More
work on this integration is clearly needed, and we can't find any
users (original author admitted that they never deployed it).
- Remove support for TLS offload with TCP Offload Engine (the far
more common opportunistic offload is retained). The locking looks
unfixable (driver sleeps under TCP spin locks) and people from the
vendor that added this are AWOL.
- Remove more ATM code, trying to leave behind only what PPPoATM
needs, AAL5 and br2684 with permanent circuits.
- Remove AppleTalk. Let it join hamradio in our out of tree protocol
graveyard, I mean, repository.
- Disable 32-bit x_tables compatibility (32bit binaries on 64bit
kernel) interface in user namespaces. To be deleted completely,
soon.
- Remove 5/10 MHz support from cfg80211/mac80211.
Drivers:
- Software:
- Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit)
- bonding: add knob to strictly follow 802.3ad for link state
- New drivers:
- Alibaba Elastic Ethernet Adaptor (cloud vNIC).
- NXP NETC switch within i.MX94.
- DPLL:
- Add operational state to pins (implement in zl3073x).
- Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).
- Ethernet high-speed NICs:
- Huawei (hinic3):
- enhance tc flow offload support with queue selection,
tunnels
- nVidia/Mellanox:
- avoid over-copying payload to the skb's linear part (up to
60% win for LRO on slow CPUs like ARM64 V2)
- expose more per-queue stats over the standard API
- support additional, unprivileged PFs in the DPU
configuration
- support Socket Direct (multi-PF) with switchdev offloads
- add a pool / frag allocator for DMA mapped buffers for
control objects, save memory on systems with 64kB page size
- take advantage of the ability to dynamically change RSS
table size, even when table is configured by the user
- increase the max RSS table size for even traffic
distribution
- Ethernet NICs:
- Marvell/Aquantia:
- AQC113 PTP support
- Realtek USB (r8152):
- support 10Gbit Link Speeds and Energy-Efficient Ethernet
(EEE)
- support firmware loaded (for RTL8157/RTL8159)
- support for the RTL8159
- Intel (ixgbe):
- support Energy-Efficient Ethernet (EEE) on E610 devices
- Ethernet switches:
- Airoha:
- support multiple netdevs on a single GDM block / port
- Marvell (mv88e6xxx):
- support SERDES of mv88e6321
- Microchip (ksz8/9):
- rework the driver callbacks to remove one indirection layer
- Motorcomm (yt921x):
- support port rate policing
- support TBF qdisc offload
- support ACL/flower offload
- nVidia/Mellanox:
- expose per-PG rx_discards
- Realtek:
- rtl8365mb: bridge offloading and VLAN support
- Ethernet PHYs:
- Airoha:
- support Airoha AN8801R Gigabit PHYs.
- Micrel:
- implement 3 low-loss cable tunables
- Realtek:
- support MDI swapping for RTL8226-CG
- support MDIO for RTL931x
- Qualcomm:
- at803x: Rx and Tx clock management for IPQ5018 PHY
- Motorcomm:
- support YT8522 100M RMII PHY
- set drive strength in YT8531s RGMII
- TI:
- dp83822: add optional external PHY clock
- Bluetooth:
- hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
- SMP: use AES-CMAC library API
- Intel:
- support Product level reset
- support smart trigger dump
- Mediatek:
- add event filter to filter specific event
- Realtek:
- fix RTL8761B/BU broken LE extended scan
- WiFi:
- Broadcom (b43):
- new support for a 11n device
- MediaTek (mt76):
- support mt7927
- mt792x: broken usb transport detection
- mt7921: regulatory improvements
- Qualcomm (ath9k):
- GPIO interface improvements
- Qualcomm (ath12k):
- WDS support
- replace dynamic memory allocation in WMI Rx path
- thermal throttling/cooling device support
- 6 GHz incumbent interference detection
- channel 177 in 5 GHz
- Realtek (rt89):
- RTL8922AU support
- USB 3 mode switch for performance
- better monitor radiotap support
- RTL8922DE preparations"
* tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1778 commits)
ipv4: fib_rule: Move fib4_rules_exit() to ->exit().
net: serialize netif_running() check in enqueue_to_backlog()
net: skmsg: preserve sg.copy across SG transforms
appletalk: move the protocol out of tree
appletalk: stop storing per-interface state in struct net_device
selftests/bpf: test that TLS crypto is rejected on a sockmap socket
selftests/bpf: drop the unused kTLS program from test_sockmap
selftests/bpf: remove sockmap + ktls tests
tls: remove dead sockmap (psock) handling from the SW path
tls: reject the combination of TLS and sockmap
atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
atm: remove unused ATM PHY operations
atm: remove the unused pre_send and send_bh device operations
atm: remove the unused change_qos device operation
atm: remove SVC socket support and the signaling daemon interface
atm: remove the local ATM (NSAP) address registry
atm: remove dead SONET PHY ioctls
atm: remove the unused send_oam / push_oam callbacks
atm: remove AAL3/4 transport support
net: dsa: sja1105: fix lastused timestamp in flower stats
...
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AppleTalk has been removed in MacOS X 10.6 (Snow Leopard), in 2009,
according to Wikipedia. We recently got a burst of AI generated
fixes to this protocol which nobody is reviewing.
Let AppleTalk follow AX.25 and hamradio out of the Linux tree.
We we will maintain the code at: github.com/linux-netdev/mod-orphan
for anyone interested in playing with it.
Retain the uAPI for now. No strong reason, simply because I suspect
keeping it will be less controversial.
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://patch.msgid.link/20260615222935.947233-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Finalize commit c33c794828f2 ("mm: ptep_get() conversion") and
replace direct page table entry dereferencing with the proper
accessors (ptep_get(), pmdp_get(), etc.).
Override the default getter implementations even though they are
currently identical: pud_clear(), p4d_clear(), and pgd_clear()
require corresponding architecture-specific getters, but these
are not yet defined. This avoids a dependency loop.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
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Heiko Carstens says:
===================
This is supposed to improve s390 idle time accounting, and brings it
back to the state it was before arch_cpu_idle_time() was removed from
s390 [3].
In result all cpu time accounting is done by the s390 architecture backend
again, instead of having a mix of architecure specific and common code
accounting (common code: idle, s390 architecture: everything else).
===================
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
|
