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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- The series "powerpc/crash: use generic crashkernel reservation" from
Sourabh Jain changes powerpc's kexec code to use more of the generic
layers.
- The series "get_maintainer: report subsystem status separately" from
Vlastimil Babka makes some long-requested improvements to the
get_maintainer output.
- The series "ucount: Simplify refcounting with rcuref_t" from
Sebastian Siewior cleans up and optimizing the refcounting in the
ucount code.
- The series "reboot: support runtime configuration of emergency
hw_protection action" from Ahmad Fatoum improves the ability for a
driver to perform an emergency system shutdown or reboot.
- The series "Converge on using secs_to_jiffies() part two" from Easwar
Hariharan performs further migrations from msecs_to_jiffies() to
secs_to_jiffies().
- The series "lib/interval_tree: add some test cases and cleanup" from
Wei Yang permits more userspace testing of kernel library code, adds
some more tests and performs some cleanups.
- The series "hung_task: Dump the blocking task stacktrace" from Masami
Hiramatsu arranges for the hung_task detector to dump the stack of
the blocking task and not just that of the blocked task.
- The series "resource: Split and use DEFINE_RES*() macros" from Andy
Shevchenko provides some cleanups to the resource definition macros.
- Plus the usual shower of singleton patches - please see the
individual changelogs for details.
* tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits)
mailmap: consolidate email addresses of Alexander Sverdlin
fs/procfs: fix the comment above proc_pid_wchan()
relay: use kasprintf() instead of fixed buffer formatting
resource: replace open coded variant of DEFINE_RES()
resource: replace open coded variants of DEFINE_RES_*_NAMED()
resource: replace open coded variant of DEFINE_RES_NAMED_DESC()
resource: split DEFINE_RES_NAMED_DESC() out of DEFINE_RES_NAMED()
samples: add hung_task detector mutex blocking sample
hung_task: show the blocker task if the task is hung on mutex
kexec_core: accept unaccepted kexec segments' destination addresses
watchdog/perf: optimize bytes copied and remove manual NUL-termination
lib/interval_tree: fix the comment of interval_tree_span_iter_next_gap()
lib/interval_tree: skip the check before go to the right subtree
lib/interval_tree: add test case for span iteration
lib/interval_tree: add test case for interval_tree_iter_xxx() helpers
lib/rbtree: add random seed
lib/rbtree: split tests
lib/rbtree: enable userland test suite for rbtree related data structure
checkpatch: describe --min-conf-desc-length
scripts/gdb/symbols: determine KASLR offset on s390
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- The series "Enable strict percpu address space checks" from Uros
Bizjak uses x86 named address space qualifiers to provide
compile-time checking of percpu area accesses.
This has caused a small amount of fallout - two or three issues were
reported. In all cases the calling code was found to be incorrect.
- The series "Some cleanup for memcg" from Chen Ridong implements some
relatively monir cleanups for the memcontrol code.
- The series "mm: fixes for device-exclusive entries (hmm)" from David
Hildenbrand fixes a boatload of issues which David found then using
device-exclusive PTE entries when THP is enabled. More work is
needed, but this makes thins better - our own HMM selftests now
succeed.
- The series "mm: zswap: remove z3fold and zbud" from Yosry Ahmed
remove the z3fold and zbud implementations. They have been deprecated
for half a year and nobody has complained.
- The series "mm: further simplify VMA merge operation" from Lorenzo
Stoakes implements numerous simplifications in this area. No runtime
effects are anticipated.
- The series "mm/madvise: remove redundant mmap_lock operations from
process_madvise()" from SeongJae Park rationalizes the locking in the
madvise() implementation. Performance gains of 20-25% were observed
in one MADV_DONTNEED microbenchmark.
- The series "Tiny cleanup and improvements about SWAP code" from
Baoquan He contains a number of touchups to issues which Baoquan
noticed when working on the swap code.
- The series "mm: kmemleak: Usability improvements" from Catalin
Marinas implements a couple of improvements to the kmemleak
user-visible output.
- The series "mm/damon/paddr: fix large folios access and schemes
handling" from Usama Arif provides a couple of fixes for DAMON's
handling of large folios.
- The series "mm/damon/core: fix wrong and/or useless damos_walk()
behaviors" from SeongJae Park fixes a few issues with the accuracy of
kdamond's walking of DAMON regions.
- The series "expose mapping wrprotect, fix fb_defio use" from Lorenzo
Stoakes changes the interaction between framebuffer deferred-io and
core MM. No functional changes are anticipated - this is preparatory
work for the future removal of page structure fields.
- The series "mm/damon: add support for hugepage_size DAMOS filter"
from Usama Arif adds a DAMOS filter which permits the filtering by
huge page sizes.
- The series "mm: permit guard regions for file-backed/shmem mappings"
from Lorenzo Stoakes extends the guard region feature from its
present "anon mappings only" state. The feature now covers shmem and
file-backed mappings.
- The series "mm: batched unmap lazyfree large folios during
reclamation" from Barry Song cleans up and speeds up the unmapping
for pte-mapped large folios.
- The series "reimplement per-vma lock as a refcount" from Suren
Baghdasaryan puts the vm_lock back into the vma. Our reasons for
pulling it out were largely bogus and that change made the code more
messy. This patchset provides small (0-10%) improvements on one
microbenchmark.
- The series "Docs/mm/damon: misc DAMOS filters documentation fixes and
improves" from SeongJae Park does some maintenance work on the DAMON
docs.
- The series "hugetlb/CMA improvements for large systems" from Frank
van der Linden addresses a pile of issues which have been observed
when using CMA on large machines.
- The series "mm/damon: introduce DAMOS filter type for unmapped pages"
from SeongJae Park enables users of DMAON/DAMOS to filter my the
page's mapped/unmapped status.
- The series "zsmalloc/zram: there be preemption" from Sergey
Senozhatsky teaches zram to run its compression and decompression
operations preemptibly.
- The series "selftests/mm: Some cleanups from trying to run them" from
Brendan Jackman fixes a pile of unrelated issues which Brendan
encountered while runnimg our selftests.
- The series "fs/proc/task_mmu: add guard region bit to pagemap" from
Lorenzo Stoakes permits userspace to use /proc/pid/pagemap to
determine whether a particular page is a guard page.
- The series "mm, swap: remove swap slot cache" from Kairui Song
removes the swap slot cache from the allocation path - it simply
wasn't being effective.
- The series "mm: cleanups for device-exclusive entries (hmm)" from
David Hildenbrand implements a number of unrelated cleanups in this
code.
- The series "mm: Rework generic PTDUMP configs" from Anshuman Khandual
implements a number of preparatoty cleanups to the GENERIC_PTDUMP
Kconfig logic.
- The series "mm/damon: auto-tune aggregation interval" from SeongJae
Park implements a feedback-driven automatic tuning feature for
DAMON's aggregation interval tuning.
- The series "Fix lazy mmu mode" from Ryan Roberts fixes some issues in
powerpc, sparc and x86 lazy MMU implementations. Ryan did this in
preparation for implementing lazy mmu mode for arm64 to optimize
vmalloc.
- The series "mm/page_alloc: Some clarifications for migratetype
fallback" from Brendan Jackman reworks some commentary to make the
code easier to follow.
- The series "page_counter cleanup and size reduction" from Shakeel
Butt cleans up the page_counter code and fixes a size increase which
we accidentally added late last year.
- The series "Add a command line option that enables control of how
many threads should be used to allocate huge pages" from Thomas
Prescher does that. It allows the careful operator to significantly
reduce boot time by tuning the parallalization of huge page
initialization.
- The series "Fix calculations in trace_balance_dirty_pages() for cgwb"
from Tang Yizhou fixes the tracing output from the dirty page
balancing code.
- The series "mm/damon: make allow filters after reject filters useful
and intuitive" from SeongJae Park improves the handling of allow and
reject filters. Behaviour is made more consistent and the documention
is updated accordingly.
- The series "Switch zswap to object read/write APIs" from Yosry Ahmed
updates zswap to the new object read/write APIs and thus permits the
removal of some legacy code from zpool and zsmalloc.
- The series "Some trivial cleanups for shmem" from Baolin Wang does as
it claims.
- The series "fs/dax: Fix ZONE_DEVICE page reference counts" from
Alistair Popple regularizes the weird ZONE_DEVICE page refcount
handling in DAX, permittig the removal of a number of special-case
checks.
- The series "refactor mremap and fix bug" from Lorenzo Stoakes is a
preparatoty refactoring and cleanup of the mremap() code.
- The series "mm: MM owner tracking for large folios (!hugetlb) +
CONFIG_NO_PAGE_MAPCOUNT" from David Hildenbrand reworks the manner in
which we determine whether a large folio is known to be mapped
exclusively into a single MM.
- The series "mm/damon: add sysfs dirs for managing DAMOS filters based
on handling layers" from SeongJae Park adds a couple of new sysfs
directories to ease the management of DAMON/DAMOS filters.
- The series "arch, mm: reduce code duplication in mem_init()" from
Mike Rapoport consolidates many per-arch implementations of
mem_init() into code generic code, where that is practical.
- The series "mm/damon/sysfs: commit parameters online via
damon_call()" from SeongJae Park continues the cleaning up of sysfs
access to DAMON internal data.
- The series "mm: page_ext: Introduce new iteration API" from Luiz
Capitulino reworks the page_ext initialization to fix a boot-time
crash which was observed with an unusual combination of compile and
cmdline options.
- The series "Buddy allocator like (or non-uniform) folio split" from
Zi Yan reworks the code to split a folio into smaller folios. The
main benefit is lessened memory consumption: fewer post-split folios
are generated.
- The series "Minimize xa_node allocation during xarry split" from Zi
Yan reduces the number of xarray xa_nodes which are generated during
an xarray split.
- The series "drivers/base/memory: Two cleanups" from Gavin Shan
performs some maintenance work on the drivers/base/memory code.
- The series "Add tracepoints for lowmem reserves, watermarks and
totalreserve_pages" from Martin Liu adds some more tracepoints to the
page allocator code.
- The series "mm/madvise: cleanup requests validations and
classifications" from SeongJae Park cleans up some warts which
SeongJae observed during his earlier madvise work.
- The series "mm/hwpoison: Fix regressions in memory failure handling"
from Shuai Xue addresses two quite serious regressions which Shuai
has observed in the memory-failure implementation.
- The series "mm: reliable huge page allocator" from Johannes Weiner
makes huge page allocations cheaper and more reliable by reducing
fragmentation.
- The series "Minor memcg cleanups & prep for memdescs" from Matthew
Wilcox is preparatory work for the future implementation of memdescs.
- The series "track memory used by balloon drivers" from Nico Pache
introduces a way to track memory used by our various balloon drivers.
- The series "mm/damon: introduce DAMOS filter type for active pages"
from Nhat Pham permits users to filter for active/inactive pages,
separately for file and anon pages.
- The series "Adding Proactive Memory Reclaim Statistics" from Hao Jia
separates the proactive reclaim statistics from the direct reclaim
statistics.
- The series "mm/vmscan: don't try to reclaim hwpoison folio" from
Jinjiang Tu fixes our handling of hwpoisoned pages within the reclaim
code.
* tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (431 commits)
mm/page_alloc: remove unnecessary __maybe_unused in order_to_pindex()
x86/mm: restore early initialization of high_memory for 32-bits
mm/vmscan: don't try to reclaim hwpoison folio
mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper
cgroup: docs: add pswpin and pswpout items in cgroup v2 doc
mm: vmscan: split proactive reclaim statistics from direct reclaim statistics
selftests/mm: speed up split_huge_page_test
selftests/mm: uffd-unit-tests support for hugepages > 2M
docs/mm/damon/design: document active DAMOS filter type
mm/damon: implement a new DAMOS filter type for active pages
fs/dax: don't disassociate zero page entries
MM documentation: add "Unaccepted" meminfo entry
selftests/mm: add commentary about 9pfs bugs
fork: use __vmalloc_node() for stack allocation
docs/mm: Physical Memory: Populate the "Zones" section
xen: balloon: update the NR_BALLOON_PAGES state
hv_balloon: update the NR_BALLOON_PAGES state
balloon_compaction: update the NR_BALLOON_PAGES state
meminfo: add a per node counter for balloon drivers
mm: remove references to folio in __memcg_kmem_uncharge_page()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull modules updates from Petr Pavlu:
- Use RCU instead of RCU-sched
The mix of rcu_read_lock(), rcu_read_lock_sched() and
preempt_disable() in the module code and its users has
been replaced with just rcu_read_lock()
- The rest of changes are smaller fixes and updates
* tag 'modules-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: (32 commits)
MAINTAINERS: Update the MODULE SUPPORT section
module: Remove unnecessary size argument when calling strscpy()
module: Replace deprecated strncpy() with strscpy()
params: Annotate struct module_param_attrs with __counted_by()
bug: Use RCU instead RCU-sched to protect module_bug_list.
static_call: Use RCU in all users of __module_text_address().
kprobes: Use RCU in all users of __module_text_address().
bpf: Use RCU in all users of __module_text_address().
jump_label: Use RCU in all users of __module_text_address().
jump_label: Use RCU in all users of __module_address().
x86: Use RCU in all users of __module_address().
cfi: Use RCU while invoking __module_address().
powerpc/ftrace: Use RCU in all users of __module_text_address().
LoongArch: ftrace: Use RCU in all users of __module_text_address().
LoongArch/orc: Use RCU in all users of __module_address().
arm64: module: Use RCU in all users of __module_text_address().
ARM: module: Use RCU in all users of __module_text_address().
module: Use RCU in all users of __module_text_address().
module: Use RCU in all users of __module_address().
module: Use RCU in search_module_extables().
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf relisient spinlock support from Alexei Starovoitov:
"This patch set introduces Resilient Queued Spin Lock (or rqspinlock
with res_spin_lock() and res_spin_unlock() APIs).
This is a qspinlock variant which recovers the kernel from a stalled
state when the lock acquisition path cannot make forward progress.
This can occur when a lock acquisition attempt enters a deadlock
situation (e.g. AA, or ABBA), or more generally, when the owner of the
lock (which we’re trying to acquire) isn’t making forward progress.
Deadlock detection is the main mechanism used to provide instant
recovery, with the timeout mechanism acting as a final line of
defense. Detection is triggered immediately when beginning the waiting
loop of a lock slow path.
Additionally, BPF programs attached to different parts of the kernel
can introduce new control flow into the kernel, which increases the
likelihood of deadlocks in code not written to handle reentrancy.
There have been multiple syzbot reports surfacing deadlocks in
internal kernel code due to the diverse ways in which BPF programs can
be attached to different parts of the kernel. By switching the BPF
subsystem’s lock usage to rqspinlock, all of these issues are
mitigated at runtime.
This spin lock implementation allows BPF maps to become safer and
remove mechanisms that have fallen short in assuring safety when
nesting programs in arbitrary ways in the same context or across
different contexts.
We run benchmarks that stress locking scalability and perform
comparison against the baseline (qspinlock). For the rqspinlock case,
we replace the default qspinlock with it in the kernel, such that all
spin locks in the kernel use the rqspinlock slow path. As such,
benchmarks that stress kernel spin locks end up exercising rqspinlock.
More details in the cover letter in commit 6ffb9017e932 ("Merge branch
'resilient-queued-spin-lock'")"
* tag 'bpf_res_spin_lock' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (24 commits)
selftests/bpf: Add tests for rqspinlock
bpf: Maintain FIFO property for rqspinlock unlock
bpf: Implement verifier support for rqspinlock
bpf: Introduce rqspinlock kfuncs
bpf: Convert lpm_trie.c to rqspinlock
bpf: Convert percpu_freelist.c to rqspinlock
bpf: Convert hashtab.c to rqspinlock
rqspinlock: Add locktorture support
rqspinlock: Add entry to Makefile, MAINTAINERS
rqspinlock: Add macros for rqspinlock usage
rqspinlock: Add basic support for CONFIG_PARAVIRT
rqspinlock: Add a test-and-set fallback
rqspinlock: Add deadlock detection and recovery
rqspinlock: Protect waiters in trylock fallback from stalls
rqspinlock: Protect waiters in queue from stalls
rqspinlock: Protect pending bit owners from stalls
rqspinlock: Hardcode cond_acquire loops for arm64
rqspinlock: Add support for timeouts
rqspinlock: Drop PV and virtualization support
rqspinlock: Add rqspinlock.h header
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
"For this merge window we're splitting BPF pull request into three for
higher visibility: main changes, res_spin_lock, try_alloc_pages.
These are the main BPF changes:
- Add DFA-based live registers analysis to improve verification of
programs with loops (Eduard Zingerman)
- Introduce load_acquire and store_release BPF instructions and add
x86, arm64 JIT support (Peilin Ye)
- Fix loop detection logic in the verifier (Eduard Zingerman)
- Drop unnecesary lock in bpf_map_inc_not_zero() (Eric Dumazet)
- Add kfunc for populating cpumask bits (Emil Tsalapatis)
- Convert various shell based tests to selftests/bpf/test_progs
format (Bastien Curutchet)
- Allow passing referenced kptrs into struct_ops callbacks (Amery
Hung)
- Add a flag to LSM bpf hook to facilitate bpf program signing
(Blaise Boscaccy)
- Track arena arguments in kfuncs (Ihor Solodrai)
- Add copy_remote_vm_str() helper for reading strings from remote VM
and bpf_copy_from_user_task_str() kfunc (Jordan Rome)
- Add support for timed may_goto instruction (Kumar Kartikeya
Dwivedi)
- Allow bpf_get_netns_cookie() int cgroup_skb programs (Mahe Tardy)
- Reduce bpf_cgrp_storage_busy false positives when accessing cgroup
local storage (Martin KaFai Lau)
- Introduce bpf_dynptr_copy() kfunc (Mykyta Yatsenko)
- Allow retrieving BTF data with BTF token (Mykyta Yatsenko)
- Add BPF kfuncs to set and get xattrs with 'security.bpf.' prefix
(Song Liu)
- Reject attaching programs to noreturn functions (Yafang Shao)
- Introduce pre-order traversal of cgroup bpf programs (Yonghong
Song)"
* tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (186 commits)
selftests/bpf: Add selftests for load-acquire/store-release when register number is invalid
bpf: Fix out-of-bounds read in check_atomic_load/store()
libbpf: Add namespace for errstr making it libbpf_errstr
bpf: Add struct_ops context information to struct bpf_prog_aux
selftests/bpf: Sanitize pointer prior fclose()
selftests/bpf: Migrate test_xdp_vlan.sh into test_progs
selftests/bpf: test_xdp_vlan: Rename BPF sections
bpf: clarify a misleading verifier error message
selftests/bpf: Add selftest for attaching fexit to __noreturn functions
bpf: Reject attaching fexit/fmod_ret to __noreturn functions
bpf: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage
bpf: Make perf_event_read_output accessible in all program types.
bpftool: Using the right format specifiers
bpftool: Add -Wformat-signedness flag to detect format errors
selftests/bpf: Test freplace from user namespace
libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID
bpf: Return prog btf_id without capable check
bpf: BPF token support for BPF_BTF_GET_FD_BY_ID
bpf, x86: Fix objtool warning for timed may_goto
bpf: Check map->record at the beginning of check_and_free_fields()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Remove legacy compression interface
- Improve scatterwalk API
- Add request chaining to ahash and acomp
- Add virtual address support to ahash and acomp
- Add folio support to acomp
- Remove NULL dst support from acomp
Algorithms:
- Library options are fuly hidden (selected by kernel users only)
- Add Kerberos5 algorithms
- Add VAES-based ctr(aes) on x86
- Ensure LZO respects output buffer length on compression
- Remove obsolete SIMD fallback code path from arm/ghash-ce
Drivers:
- Add support for PCI device 0x1134 in ccp
- Add support for rk3588's standalone TRNG in rockchip
- Add Inside Secure SafeXcel EIP-93 crypto engine support in eip93
- Fix bugs in tegra uncovered by multi-threaded self-test
- Fix corner cases in hisilicon/sec2
Others:
- Add SG_MITER_LOCAL to sg miter
- Convert ubifs, hibernate and xfrm_ipcomp from legacy API to acomp"
* tag 'v6.15-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (187 commits)
crypto: testmgr - Add multibuffer acomp testing
crypto: acomp - Fix synchronous acomp chaining fallback
crypto: testmgr - Add multibuffer hash testing
crypto: hash - Fix synchronous ahash chaining fallback
crypto: arm/ghash-ce - Remove SIMD fallback code path
crypto: essiv - Replace memcpy() + NUL-termination with strscpy()
crypto: api - Call crypto_alg_put in crypto_unregister_alg
crypto: scompress - Fix incorrect stream freeing
crypto: lib/chacha - remove unused arch-specific init support
crypto: remove obsolete 'comp' compression API
crypto: compress_null - drop obsolete 'comp' implementation
crypto: cavium/zip - drop obsolete 'comp' implementation
crypto: zstd - drop obsolete 'comp' implementation
crypto: lzo - drop obsolete 'comp' implementation
crypto: lzo-rle - drop obsolete 'comp' implementation
crypto: lz4hc - drop obsolete 'comp' implementation
crypto: lz4 - drop obsolete 'comp' implementation
crypto: deflate - drop obsolete 'comp' implementation
crypto: 842 - drop obsolete 'comp' implementation
crypto: nx - Migrate to scomp API
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC fixes from Eric Biggers:
"Fix out-of-scope array bugs in arm and arm64's crc_t10dif_arch()"
* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
arm64/crc-t10dif: fix use of out-of-scope array in crc_t10dif_arch()
arm/crc-t10dif: fix use of out-of-scope array in crc_t10dif_arch()
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing / sorttable updates from Steven Rostedt:
- Implement arm64 build time sorting of the mcount location table
When gcc is used to build arm64, the mcount_loc section is all zeros
in the vmlinux elf file. The addresses are stored in the Elf_Rela
location.
To sort at build time, an array is allocated and the addresses are
added to it via the content of the mcount_loc section as well as he
Elf_Rela data. After sorting, the information is put back into the
Elf_Rela which now has the section sorted.
- Make sorting of mcount location table for arm64 work with clang as
well
When clang is used, the mcount_loc section contains the addresses,
unlike the gcc build. An array is still created and the sorting works
for both methods.
- Remove weak functions from the mcount_loc section
Have the sorttable code pass in the data of functions defined via
'nm -S' which shows the functions as well as their sizes. Using this
information the sorttable code can determine if a function in the
mcount_loc section was weak and overridden. If the function is not
found, it is set to be zero. On boot, when the mcount_loc section is
read and the ftrace table is created, if the address in the
mcount_loc is not in the kernel core text then it is removed and not
added to the ftrace_filter_functions (the functions that can be
attached by ftrace callbacks).
- Update and fix the reporting of how much data is used for ftrace
functions
On boot, a report of how many pages were used by the ftrace table as
well as how they were grouped (the table holds a list of sections
that are groups of pages that were able to be allocated). The
removing of the weak functions required the accounting to be updated.
* tag 'trace-sorttable-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
scripts/sorttable: Allow matches to functions before function entry
scripts/sorttable: Use normal sort if theres no relocs in the mcount section
ftrace: Check against is_kernel_text() instead of kaslr_offset()
ftrace: Test mcount_loc addr before calling ftrace_call_addr()
ftrace: Have ftrace pages output reflect freed pages
ftrace: Update the mcount_loc check of skipped entries
scripts/sorttable: Zero out weak functions in mcount_loc table
scripts/sorttable: Always use an array for the mcount_loc sorting
scripts/sorttable: Have mcount rela sort use direct values
arm64: scripts/sorttable: Implement sorting mcount_loc at boot for arm64
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
"A small set of updates for the arm64 defconfig to enable more drivers,
plus a bit for housekeeping on some of the arm32 defconfigs on
particular SoC families"
* tag 'soc-defconfig-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm: defconfig: drop RT_GROUP_SCHED=y from bcm2835/tegra/omap2plus
arm64: defconfig: Enable USB retimer and redriver
arm64: defconfig: Build NSS Clock Controller driver for IPQ9574
arm64: defconfig: Enable SPI NAND flashes
arm64: defconfig: Enable Synopsys HDMI receiver
arm64: defconfig: Enable Rockchip UFS host driver
arm64: defconfig: enable Qualcomm IRIS & VIDEOCC_8550 as module
arm64: defconfig: Enable HSR protocol driver
arm64: defconfig: Enable gb_beagleplay
arm64: defconfig: enable DRM_DISPLAY_CONNECTOR as a module
arm64: defconfig: Enable Qualcomm QCM2290 GPU clock controller
ARM: shmobile: defconfig: Supplement DTB with ATAG information
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Pull SoC devicetree updates from Arnd Bergmann:
"There is new support for additional on-chip devices on Apple,
Mediatek, Renesas, Rockchip, Samsung, Google, TI, ST, Nvidia and
Amlogic devices.
The Arm Morello reference platform gets a devicetree for booting in
normal aarch64 mode. The hardware supports experimental CHERI support,
which requires a modified kernel.
The AMD (formerly Xilinx) Versal NET SoC gets added, this is a
combined FPGA with Cortex-A78 CPUs in a SoC.
Six new ST STM32MP2 SoC variants are added. Like the earlier
STM32MP25, the MP211, MP213, MP215, MP231, MP233 and MP235 models are
based on one or two Cortex-A35 cores but each feature a different set
of I/O devices.
Mediatek MT8370 is a minor variation of MT8390 with fewer CPU and GPU
cores
Apple T2 is the baseboard management controller on earlier Intel CPU
based Macs, with 16 models now gaining initial support.
All the above come with dts files for the reference boards. In
addition, these boards are added for the SoCs that are already
supported:
- The Milk-V Jupiter board based on SpacemiT K1/M1
- NetCube Systems Kumquat board based on the 32-bit Allwinner V3s SoC
- Three boards based on 32-bit stm32mp1
- 11 distinct board variants from Toradex and one from Variscite, all
based on i.MX6
- Google Pixel Pro 6 phone based on gs101 (Tensor)
- Three additional variants of the i.MX8MP based "Skov" board
- A second variant of the i.MX95 EVK board
- Two boards based on Renesas SoCs
- Four boards based the Rockchip RK35xx series, plus the RK3588 'MNT
Reform 2' laptop"
* tag 'soc-dt-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (538 commits)
arm64: dts: Add gpio_intc node for Amlogic A5 SoCs
arm64: dts: Add gpio_intc node for Amlogic A4 SoCs
arm64: dts: hi3660: Add property for fixing CPUIdle
arm64: dts: rockchip: remove ethm0_clk0_25m_out from Sige5 gmac0
arm64: dts: marvell: Use preferred node names for "simple-bus"
arm64: dts: marvell: Drop unused CP11X_TYPE define
arm64: dts: marvell: Move arch timer and pmu nodes to top-level
arm64: dts: rockchip: Fix PWM pinctrl names
arm64: dts: rockchip: fix RK3576 SCMI clock IDs
dt-bindings: clock: rk3576: add SCMI clocks
arm64: dts: rockchip: Fix pcie reset gpio on Orange Pi 5 Max
arm64: dts: amd/seattle: Drop undocumented "spi-controller" properties
arm64: dts: amd/seattle: Fix bus, mmc, and ethernet node names
arm64: dts: amd/seattle: Move and simplify fixed clocks
arm64: dts: amd/seattle: Base Overdrive B1 on top of B0 version
arm64: dts: rockchip: Enable HDMI audio output for ArmSoM Sige7
arm64: dts: rockchip: Enable onboard eMMC on Radxa E20C
arm64: dts: rockchip: Add SDHCI controller for RK3528
arm64: dts: rockchip: Remove bluetooth node from rock-3a
arm64: dts: rockchip: Move rk356x scmi SHMEM to reserved memory
...
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (scsi_debug, ufs, lpfc, st, fnic, mpi3mr,
mpt3sas) and the removal of cxlflash.
The only non-trivial core change is an addition to unit attention
handling to recognize UAs for power on/reset and new media so the tape
driver can use it"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (107 commits)
scsi: st: Tighten the page format heuristics with MODE SELECT
scsi: st: ERASE does not change tape location
scsi: st: Fix array overflow in st_setup()
scsi: target: tcm_loop: Fix wrong abort tag
scsi: lpfc: Restore clearing of NLP_UNREG_INP in ndlp->nlp_flag
scsi: hisi_sas: Fixed failure to issue vendor specific commands
scsi: fnic: Remove unnecessary NUL-terminations
scsi: fnic: Remove redundant flush_workqueue() calls
scsi: core: Use a switch statement when attaching VPD pages
scsi: ufs: renesas: Add initialization code for R-Car S4-8 ES1.2
scsi: ufs: renesas: Add reusable functions
scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings
scsi: ufs: renesas: Remove register control helper function
scsi: ufs: renesas: Add register read to remove save/set/restore
scsi: ufs: renesas: Replace init data by init code
scsi: ufs: dt-bindings: renesas,ufs: Add calibration data
scsi: mpi3mr: Task Abort EH Support
scsi: storvsc: Don't report the host packet status as the hv status
scsi: isci: Make most module parameters static
scsi: megaraid_sas: Make most module parameters static
...
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Fix a silly bug where an array was used outside of its scope.
Fixes: 2051da858534 ("arm64/crc-t10dif: expose CRC-T10DIF function through lib")
Cc: stable@vger.kernel.org
Reported-by: David Binderman <dcb314@hotmail.com>
Closes: https://lore.kernel.org/r/AS8PR02MB102170568EAE7FFDF93C8D1ED9CA62@AS8PR02MB10217.eurprd02.prod.outlook.com
Link: https://lore.kernel.org/r/20250326200918.125743-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers updates from Ilpo Järvinen:
- alienware-wmi:
- Refactor and split WMAX/legacy drivers
- dell-ddv:
- Correct +0.1 offset in temperature
- Use the power supply extension mechanism for battery temperatures
- intel/pmc:
- Refactor init to mostly use a common init function
- Add support for Arrow Lake U/H
- Add support for Panther Lake
- intel/sst:
- Improve multi die handling
- Prefix header search path with sysroot (fixes cross-compiling)
- lenovo-wmi-hotkey-utilities:
- Support for mic & audio mute LEDs
- samsung-galaxybook:
- Add driver for Samsung Galaxy Book series
- wmi:
- Rework WCxx/WExx ACPI method handling
- Enable data block collection when the data block is set
- platform/arm:
- Add Huawei Matebook E Go EC driver
- platform/mellanox:
- Relocate to drivers/platform/mellanox/
- mlxbf-bootctl:
- RTC battery status sysfs support
- Miscellaneous cleanups / refactoring / improvements
* tag 'platform-drivers-x86-v6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (75 commits)
platform/x86: x86-android-tablets: Add select POWER_SUPPLY to Kconfig
platform/x86/amd/pmf: convert timeouts to secs_to_jiffies()
platform/x86: thinkpad_acpi: convert timeouts to secs_to_jiffies()
irqdomain: platform/x86: Switch to irq_domain_create_linear()
platform/x86/amd/pmc: fix leak in probe()
tools/power/x86/intel-speed-select: v1.22 release
tools/power/x86/intel-speed-select: Prefix header search path with sysroot
tools/power/x86/intel-speed-select: Die ID for IO dies
tools/power/x86/intel-speed-select: Fix the condition to check multi die system
tools/power/x86/intel-speed-select: Prevent increasing MAX_DIE_PER_PACKAGE
platform/x86/amd/pmc: Use managed APIs for mutex
platform/x86/amd/pmc: Remove unnecessary line breaks
platform/x86/amd/pmc: Move macros and structures to the PMC header file
platform/x86/amd/pmc: Notify user when platform does not support s0ix transition
platform/x86: dell-ddv: Use the power supply extension mechanism
platform/x86: dell-ddv: Use devm_battery_hook_register
platform/x86: dell-ddv: Fix temperature calculation
platform/x86: thinkpad_acpi: check the return value of devm_mutex_init()
platform/x86: samsung-galaxybook: Fix block_recording not supported logic
platform/x86: dell-uart-backlight: Make dell_uart_bl_serdev_driver static
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a very quiet release, we've got support for one device
added, another removed, and some smaller fixes and API improvements.
The main thing of note is the rework of the PCA9450 LDO5 handling.
- A rework of the handling of LDO5 on the PCA9450, this was quite
wrong in how it handled the SD_VSEL conrol and only worked for some
system designs. This includes a DTS update since there was a not
quite ABI compatible change as part of the fix
- A devres change introducing devm_kmemdup_array() was pulled in so
it could be used with some regulator conversions to that function,
this pulled in some other devres and IIO stuff that was part of the
same pull request
- Removal of the PCF50633 driver, the SoC for the OpenMoko platform
that used it has been removed
- Support for the NXP PF9453"
* tag 'regulator-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (24 commits)
regulator: axp20x: AXP717: dcdc4 doesn't have delay
regulator: dt-bindings: rtq2208: Cleanup whitespace
regulator: dt-bindings: rtq2208: Mark fixed LDO VOUT property as deprecated
regulator: rtq6752: make const read-only array fault_mask static
regulator: pf9453: add PMIC PF9453 support
regulator: dt-bindings: pca9450: Add nxp,pf9453 compatible string
regulator: pcf50633-regulator: Remove
regulator: pca9450: Handle hardware with fixed SD_VSEL for LDO5
regulator: cros-ec: use devm_kmemdup_array()
regulator: devres: use devm_kmemdup_array()
regulator: Add (devm_)of_regulator_get()
devres: Introduce devm_kmemdup_array()
iio: imu: st_lsm9ds0: Replace device.h with what is needed
driver core: Split devres APIs to device/devres.h
err.h: move IOMEM_ERR_PTR() to err.h
regulator: pca9450: Remove duplicate code in probe
regulator: ad5398: Fix incorrect power down bit mask
regulator: pca9450: Fix enable register for LDO5
regulator: pca9450: Fix control register for LDO5
Revert "regulator: pca9450: Add SD_VSEL GPIO for LDO5"
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC updates from Eric Biggers:
"Another set of improvements to the kernel's CRC (cyclic redundancy
check) code:
- Rework the CRC64 library functions to be directly optimized, like
what I did last cycle for the CRC32 and CRC-T10DIF library
functions
- Rewrite the x86 PCLMULQDQ-optimized CRC code, and add VPCLMULQDQ
support and acceleration for crc64_be and crc64_nvme
- Rewrite the riscv Zbc-optimized CRC code, and add acceleration for
crc_t10dif, crc64_be, and crc64_nvme
- Remove crc_t10dif and crc64_rocksoft from the crypto API, since
they are no longer needed there
- Rename crc64_rocksoft to crc64_nvme, as the old name was incorrect
- Add kunit test cases for crc64_nvme and crc7
- Eliminate redundant functions for calculating the Castagnoli CRC32,
settling on just crc32c()
- Remove unnecessary prompts from some of the CRC kconfig options
- Further optimize the x86 crc32c code"
* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (36 commits)
x86/crc: drop the avx10_256 functions and rename avx10_512 to avx512
lib/crc: remove unnecessary prompt for CONFIG_CRC64
lib/crc: remove unnecessary prompt for CONFIG_LIBCRC32C
lib/crc: remove unnecessary prompt for CONFIG_CRC8
lib/crc: remove unnecessary prompt for CONFIG_CRC7
lib/crc: remove unnecessary prompt for CONFIG_CRC4
lib/crc7: unexport crc7_be_syndrome_table
lib/crc_kunit.c: update comment in crc_benchmark()
lib/crc_kunit.c: add test and benchmark for crc7_be()
x86/crc32: optimize tail handling for crc32c short inputs
riscv/crc64: add Zbc optimized CRC64 functions
riscv/crc-t10dif: add Zbc optimized CRC-T10DIF function
riscv/crc32: reimplement the CRC32 functions using new template
riscv/crc: add "template" for Zbc optimized CRC functions
x86/crc: add ANNOTATE_NOENDBR to suppress objtool warnings
x86/crc32: improve crc32c_arch() code generation with clang
x86/crc64: implement crc64_be and crc64_nvme using new template
x86/crc-t10dif: implement crc_t10dif using new template
x86/crc32: implement crc32_le using new template
x86/crc: add "template" for [V]PCLMULQDQ based CRC functions
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- Add support for running as the root partition in Hyper-V (Microsoft
Hypervisor) by exposing /dev/mshv (Nuno and various people)
- Add support for CPU offlining in Hyper-V (Hamza Mahfooz)
- Misc fixes and cleanups (Roman Kisel, Tianyu Lan, Wei Liu, Michael
Kelley, Thorsten Blum)
* tag 'hyperv-next-signed-20250324' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (24 commits)
x86/hyperv: fix an indentation issue in mshyperv.h
x86/hyperv: Add comments about hv_vpset and var size hypercall input args
Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs
hyperv: Add definitions for root partition driver to hv headers
x86: hyperv: Add mshv_handler() irq handler and setup function
Drivers: hv: Introduce per-cpu event ring tail
Drivers: hv: Export some functions for use by root partition module
acpi: numa: Export node_to_pxm()
hyperv: Introduce hv_recommend_using_aeoi()
arm64/hyperv: Add some missing functions to arm64
x86/mshyperv: Add support for extended Hyper-V features
hyperv: Log hypercall status codes as strings
x86/hyperv: Fix check of return value from snp_set_vmsa()
x86/hyperv: Add VTL mode callback for restarting the system
x86/hyperv: Add VTL mode emergency restart callback
hyperv: Remove unused union and structs
hyperv: Add CONFIG_MSHV_ROOT to gate root partition support
hyperv: Change hv_root_partition into a function
hyperv: Convert hypercall statuses to linux error codes
drivers/hv: add CPU offlining support
...
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Pull kvm updates from Paolo Bonzini:
"ARM:
- Nested virtualization support for VGICv3, giving the nested
hypervisor control of the VGIC hardware when running an L2 VM
- Removal of 'late' nested virtualization feature register masking,
making the supported feature set directly visible to userspace
- Support for emulating FEAT_PMUv3 on Apple silicon, taking advantage
of an IMPLEMENTATION DEFINED trap that covers all PMUv3 registers
- Paravirtual interface for discovering the set of CPU
implementations where a VM may run, addressing a longstanding issue
of guest CPU errata awareness in big-little systems and
cross-implementation VM migration
- Userspace control of the registers responsible for identifying a
particular CPU implementation (MIDR_EL1, REVIDR_EL1, AIDR_EL1),
allowing VMs to be migrated cross-implementation
- pKVM updates, including support for tracking stage-2 page table
allocations in the protected hypervisor in the 'SecPageTable' stat
- Fixes to vPMU, ensuring that userspace updates to the vPMU after
KVM_RUN are reflected into the backing perf events
LoongArch:
- Remove unnecessary header include path
- Assume constant PGD during VM context switch
- Add perf events support for guest VM
RISC-V:
- Disable the kernel perf counter during configure
- KVM selftests improvements for PMU
- Fix warning at the time of KVM module removal
x86:
- Add support for aging of SPTEs without holding mmu_lock.
Not taking mmu_lock allows multiple aging actions to run in
parallel, and more importantly avoids stalling vCPUs. This includes
an implementation of per-rmap-entry locking; aging the gfn is done
with only a per-rmap single-bin spinlock taken, whereas locking an
rmap for write requires taking both the per-rmap spinlock and the
mmu_lock.
Note that this decreases slightly the accuracy of accessed-page
information, because changes to the SPTE outside aging might not
use atomic operations even if they could race against a clear of
the Accessed bit.
This is deliberate because KVM and mm/ tolerate false
positives/negatives for accessed information, and testing has shown
that reducing the latency of aging is far more beneficial to
overall system performance than providing "perfect" young/old
information.
- Defer runtime CPUID updates until KVM emulates a CPUID instruction,
to coalesce updates when multiple pieces of vCPU state are
changing, e.g. as part of a nested transition
- Fix a variety of nested emulation bugs, and add VMX support for
synthesizing nested VM-Exit on interception (instead of injecting
#UD into L2)
- Drop "support" for async page faults for protected guests that do
not set SEND_ALWAYS (i.e. that only want async page faults at CPL3)
- Bring a bit of sanity to x86's VM teardown code, which has
accumulated a lot of cruft over the years. Particularly, destroy
vCPUs before the MMU, despite the latter being a VM-wide operation
- Add common secure TSC infrastructure for use within SNP and in the
future TDX
- Block KVM_CAP_SYNC_REGS if guest state is protected. It does not
make sense to use the capability if the relevant registers are not
available for reading or writing
- Don't take kvm->lock when iterating over vCPUs in the suspend
notifier to fix a largely theoretical deadlock
- Use the vCPU's actual Xen PV clock information when starting the
Xen timer, as the cached state in arch.hv_clock can be stale/bogus
- Fix a bug where KVM could bleed PVCLOCK_GUEST_STOPPED across
different PV clocks; restrict PVCLOCK_GUEST_STOPPED to kvmclock, as
KVM's suspend notifier only accounts for kvmclock, and there's no
evidence that the flag is actually supported by Xen guests
- Clean up the per-vCPU "cache" of its reference pvclock, and instead
only track the vCPU's TSC scaling (multipler+shift) metadata (which
is moderately expensive to compute, and rarely changes for modern
setups)
- Don't write to the Xen hypercall page on MSR writes that are
initiated by the host (userspace or KVM) to fix a class of bugs
where KVM can write to guest memory at unexpected times, e.g.
during vCPU creation if userspace has set the Xen hypercall MSR
index to collide with an MSR that KVM emulates
- Restrict the Xen hypercall MSR index to the unofficial synthetic
range to reduce the set of possible collisions with MSRs that are
emulated by KVM (collisions can still happen as KVM emulates
Hyper-V MSRs, which also reside in the synthetic range)
- Clean up and optimize KVM's handling of Xen MSR writes and
xen_hvm_config
- Update Xen TSC leaves during CPUID emulation instead of modifying
the CPUID entries when updating PV clocks; there is no guarantee PV
clocks will be updated between TSC frequency changes and CPUID
emulation, and guest reads of the TSC leaves should be rare, i.e.
are not a hot path
x86 (Intel):
- Fix a bug where KVM unnecessarily reads XFD_ERR from hardware and
thus modifies the vCPU's XFD_ERR on a #NM due to CR0.TS=1
- Pass XFD_ERR as the payload when injecting #NM, as a preparatory
step for upcoming FRED virtualization support
- Decouple the EPT entry RWX protection bit macros from the EPT
Violation bits, both as a general cleanup and in anticipation of
adding support for emulating Mode-Based Execution Control (MBEC)
- Reject KVM_RUN if userspace manages to gain control and stuff
invalid guest state while KVM is in the middle of emulating nested
VM-Enter
- Add a macro to handle KVM's sanity checks on entry/exit VMCS
control pairs in anticipation of adding sanity checks for secondary
exit controls (the primary field is out of bits)
x86 (AMD):
- Ensure the PSP driver is initialized when both the PSP and KVM
modules are built-in (the initcall framework doesn't handle
dependencies)
- Use long-term pins when registering encrypted memory regions, so
that the pages are migrated out of MIGRATE_CMA/ZONE_MOVABLE and
don't lead to excessive fragmentation
- Add macros and helpers for setting GHCB return/error codes
- Add support for Idle HLT interception, which elides interception if
the vCPU has a pending, unmasked virtual IRQ when HLT is executed
- Fix a bug in INVPCID emulation where KVM fails to check for a
non-canonical address
- Don't attempt VMRUN for SEV-ES+ guests if the vCPU's VMSA is
invalid, e.g. because the vCPU was "destroyed" via SNP's AP
Creation hypercall
- Reject SNP AP Creation if the requested SEV features for the vCPU
don't match the VM's configured set of features
Selftests:
- Fix again the Intel PMU counters test; add a data load and do
CLFLUSH{OPT} on the data instead of executing code. The theory is
that modern Intel CPUs have learned new code prefetching tricks
that bypass the PMU counters
- Fix a flaw in the Intel PMU counters test where it asserts that an
event is counting correctly without actually knowing what the event
counts on the underlying hardware
- Fix a variety of flaws, bugs, and false failures/passes
dirty_log_test, and improve its coverage by collecting all dirty
entries on each iteration
- Fix a few minor bugs related to handling of stats FDs
- Add infrastructure to make vCPU and VM stats FDs available to tests
by default (open the FDs during VM/vCPU creation)
- Relax an assertion on the number of HLT exits in the xAPIC IPI test
when running on a CPU that supports AMD's Idle HLT (which elides
interception of HLT if a virtual IRQ is pending and unmasked)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (216 commits)
RISC-V: KVM: Optimize comments in kvm_riscv_vcpu_isa_disable_allowed
RISC-V: KVM: Teardown riscv specific bits after kvm_exit
LoongArch: KVM: Register perf callbacks for guest
LoongArch: KVM: Implement arch-specific functions for guest perf
LoongArch: KVM: Add stub for kvm_arch_vcpu_preempted_in_kernel()
LoongArch: KVM: Remove PGD saving during VM context switch
LoongArch: KVM: Remove unnecessary header include path
KVM: arm64: Tear down vGIC on failed vCPU creation
KVM: arm64: PMU: Reload when resetting
KVM: arm64: PMU: Reload when user modifies registers
KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs
KVM: arm64: PMU: Assume PMU presence in pmu-emul.c
KVM: arm64: PMU: Set raw values from user to PM{C,I}NTEN{SET,CLR}, PMOVS{SET,CLR}
KVM: arm64: Create each pKVM hyp vcpu after its corresponding host vcpu
KVM: arm64: Factor out pKVM hyp vcpu creation to separate function
KVM: arm64: Initialize HCRX_EL2 traps in pKVM
KVM: arm64: Factor out setting HCRX_EL2 traps into separate function
KVM: x86: block KVM_CAP_SYNC_REGS if guest state is protected
KVM: x86: Add infrastructure for secure TSC
KVM: x86: Push down setting vcpu.arch.user_set_tsc
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Nothing major this time around.
Apart from the usual perf/PMU updates, some page table cleanups, the
notable features are average CPU frequency based on the AMUv1
counters, CONFIG_HOTPLUG_SMT and MOPS instructions (memcpy/memset) in
the uaccess routines.
Perf and PMUs:
- Support for the 'Rainier' CPU PMU from Arm
- Preparatory driver changes and cleanups that pave the way for BRBE
support
- Support for partial virtualisation of the Apple-M1 PMU
- Support for the second event filter in Arm CSPMU designs
- Minor fixes and cleanups (CMN and DWC PMUs)
- Enable EL2 requirements for FEAT_PMUv3p9
Power, CPU topology:
- Support for AMUv1-based average CPU frequency
- Run-time SMT control wired up for arm64 (CONFIG_HOTPLUG_SMT). It
adds a generic topology_is_primary_thread() function overridden by
x86 and powerpc
New(ish) features:
- MOPS (memcpy/memset) support for the uaccess routines
Security/confidential compute:
- Fix the DMA address for devices used in Realms with Arm CCA. The
CCA architecture uses the address bit to differentiate between
shared and private addresses
- Spectre-BHB: assume CPUs Linux doesn't know about vulnerable by
default
Memory management clean-ups:
- Drop the P*D_TABLE_BIT definition in preparation for 128-bit PTEs
- Some minor page table accessor clean-ups
- PIE/POE (permission indirection/overlay) helpers clean-up
Kselftests:
- MTE: skip hugetlb tests if MTE is not supported on such mappings
and user correct naming for sync/async tag checking modes
Miscellaneous:
- Add a PKEY_UNRESTRICTED definition as 0 to uapi (toolchain people
request)
- Sysreg updates for new register fields
- CPU type info for some Qualcomm Kryo cores"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (72 commits)
arm64: mm: Don't use %pK through printk
perf/arm_cspmu: Fix missing io.h include
arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists
arm64: cputype: Add MIDR_CORTEX_A76AE
arm64: errata: Add KRYO 2XX/3XX/4XX silver cores to Spectre BHB safe list
arm64: errata: Assume that unknown CPUs _are_ vulnerable to Spectre BHB
arm64: errata: Add QCOM_KRYO_4XX_GOLD to the spectre_bhb_k24_list
arm64/sysreg: Enforce whole word match for open/close tokens
arm64/sysreg: Fix unbalanced closing block
arm64: Kconfig: Enable HOTPLUG_SMT
arm64: topology: Support SMT control on ACPI based system
arch_topology: Support SMT control for OF based system
cpu/SMT: Provide a default topology_is_primary_thread()
arm64/mm: Define PTDESC_ORDER
perf/arm_cspmu: Add PMEVFILT2R support
perf/arm_cspmu: Generalise event filtering
perf/arm_cspmu: Move register definitons to header
arm64/kernel: Always use level 2 or higher for early mappings
arm64/mm: Drop PXD_TABLE_BIT
arm64/mm: Check pmd_table() in pmd_trans_huge()
...
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* for-next/el2-enable-feat-pmuv3p9:
: Enable EL2 requirements for FEAT_PMUv3p9
arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9
|
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* for-next/smt-control:
: Support SMT control on arm64
arm64: Kconfig: Enable HOTPLUG_SMT
arm64: topology: Support SMT control on ACPI based system
arch_topology: Support SMT control for OF based system
cpu/SMT: Provide a default topology_is_primary_thread()
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'for-next/sysreg', 'for-next/misc', 'for-next/pgtable-cleanups', 'for-next/kselftest', 'for-next/uaccess-mops', 'for-next/pie-poe-cleanup', 'for-next/cputype-kryo', 'for-next/cca-dma-address', 'for-next/drop-pxd_table_bit' and 'for-next/spectre-bhb-assume-vulnerable', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
perf/arm_cspmu: Fix missing io.h include
perf/arm_cspmu: Add PMEVFILT2R support
perf/arm_cspmu: Generalise event filtering
perf/arm_cspmu: Move register definitons to header
drivers/perf: apple_m1: Support host/guest event filtering
drivers/perf: apple_m1: Refactor event select/filter configuration
perf/dwc_pcie: fix duplicate pci_dev devices
perf/dwc_pcie: fix some unreleased resources
perf/arm-cmn: Minor event type housekeeping
perf: arm_pmu: Move PMUv3-specific data
perf: apple_m1: Don't disable counter in m1_pmu_enable_event()
perf: arm_v7_pmu: Don't disable counter in (armv7|krait_|scorpion_)pmu_enable_event()
perf: arm_v7_pmu: Drop obvious comments for enabling/disabling counters and interrupts
perf: arm_pmuv3: Don't disable counter in armv8pmu_enable_event()
perf: arm_pmu: Don't disable counter in armpmu_add()
perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters
perf: arm_pmuv3: Add support for ARM Rainier PMU
* for-next/amuv1-avg-freq:
: Add support for AArch64 AMUv1-based average freq
arm64: Utilize for_each_cpu_wrap for reference lookup
arm64: Update AMU-based freq scale factor on entering idle
arm64: Provide an AMU-based version of arch_freq_get_on_cpu
cpufreq: Introduce an optional cpuinfo_avg_freq sysfs entry
cpufreq: Allow arch_freq_get_on_cpu to return an error
arch_topology: init capacity_freq_ref to 0
* for-next/pkey_unrestricted:
: mm/pkey: Add PKEY_UNRESTRICTED macro
selftest/powerpc/mm/pkey: fix build-break introduced by commit 00894c3fc917
selftests/powerpc: Use PKEY_UNRESTRICTED macro
selftests/mm: Use PKEY_UNRESTRICTED macro
mm/pkey: Add PKEY_UNRESTRICTED macro
* for-next/sysreg:
: arm64 sysreg updates
arm64/sysreg: Enforce whole word match for open/close tokens
arm64/sysreg: Fix unbalanced closing block
arm64/sysreg: Add register fields for HFGWTR2_EL2
arm64/sysreg: Add register fields for HFGRTR2_EL2
arm64/sysreg: Add register fields for HFGITR2_EL2
arm64/sysreg: Add register fields for HDFGWTR2_EL2
arm64/sysreg: Add register fields for HDFGRTR2_EL2
arm64/sysreg: Update register fields for ID_AA64MMFR0_EL1
* for-next/misc:
: Miscellaneous arm64 patches
arm64: mm: Don't use %pK through printk
arm64/fpsimd: Remove unused declaration fpsimd_kvm_prepare()
* for-next/pgtable-cleanups:
: arm64 pgtable accessors cleanup
arm64/mm: Define PTDESC_ORDER
arm64/kernel: Always use level 2 or higher for early mappings
arm64/hugetlb: Consistently use pud_sect_supported()
arm64/mm: Convert __pte_to_phys() and __phys_to_pte_val() as functions
* for-next/kselftest:
: arm64 kselftest updates
kselftest/arm64: mte: Skip the hugetlb tests if MTE not supported on such mappings
kselftest/arm64: mte: Use the correct naming for tag check modes in check_hugetlb_options.c
* for-next/uaccess-mops:
: Implement the uaccess memory copy/set using MOPS instructions
arm64: lib: Use MOPS for usercopy routines
arm64: mm: Handle PAN faults on uaccess CPY* instructions
arm64: extable: Add fixup handling for uaccess CPY* instructions
* for-next/pie-poe-cleanup:
: PIE/POE helpers cleanup
arm64/sysreg: Move POR_EL0_INIT to asm/por.h
arm64/sysreg: Rename POE_RXW to POE_RWX
arm64/sysreg: Improve PIR/POR helpers
* for-next/cputype-kryo:
: Add cputype info for some Qualcomm Kryo cores
arm64: cputype: Add comments about Qualcomm Kryo 5XX and 6XX cores
arm64: cputype: Add QCOM_CPU_PART_KRYO_3XX_GOLD
* for-next/cca-dma-address:
: Fix DMA address for devices used in realms with Arm CCA
arm64: realm: Use aliased addresses for device DMA to shared buffers
dma: Introduce generic dma_addr_*crypted helpers
dma: Fix encryption bit clearing for dma_to_phys
* for-next/drop-pxd_table_bit:
: Drop the arm64 PXD_TABLE_BIT (clean-up in preparation for 128-bit PTEs)
arm64/mm: Drop PXD_TABLE_BIT
arm64/mm: Check pmd_table() in pmd_trans_huge()
arm64/mm: Check PUD_TYPE_TABLE in pud_bad()
arm64/mm: Check PXD_TYPE_TABLE in [p4d|pgd]_bad()
arm64/mm: Clear PXX_TYPE_MASK and set PXD_TYPE_SECT in [pmd|pud]_mkhuge()
arm64/mm: Clear PXX_TYPE_MASK in mk_[pmd|pud]_sect_prot()
arm64/ptdump: Test PMD_TYPE_MASK for block mapping
KVM: arm64: ptdump: Test PMD_TYPE_MASK for block mapping
* for-next/spectre-bhb-assume-vulnerable:
: Rework Spectre BHB mitigations to not assume "safe"
arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists
arm64: cputype: Add MIDR_CORTEX_A76AE
arm64: errata: Add KRYO 2XX/3XX/4XX silver cores to Spectre BHB safe list
arm64: errata: Assume that unknown CPUs _are_ vulnerable to Spectre BHB
arm64: errata: Add QCOM_KRYO_4XX_GOLD to the spectre_bhb_k24_list
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO infrastructure updates from Thomas Gleixner:
- Consolidate the VDSO storage
The VDSO data storage and data layout has been largely architecture
specific for historical reasons. That increases the maintenance
effort and causes inconsistencies over and over.
There is no real technical reason for architecture specific layouts
and implementations. The architecture specific details can easily be
integrated into a generic layout, which also reduces the amount of
duplicated code for managing the mappings.
Convert all architectures over to a unified layout and common mapping
infrastructure. This splits the VDSO data layout into subsystem
specific blocks, timekeeping, random and architecture parts, which
provides a better structure and allows to improve and update the
functionalities without conflict and interaction.
- Rework the timekeeping data storage
The current implementation is designed for exposing system
timekeeping accessors, which was good enough at the time when it was
designed.
PTP and Time Sensitive Networking (TSN) change that as there are
requirements to expose independent PTP clocks, which are not related
to system timekeeping.
Replace the monolithic data storage by a structured layout, which
allows to add support for independent PTP clocks on top while reusing
both the data structures and the time accessor implementations.
* tag 'timers-vdso-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
sparc/vdso: Always reject undefined references during linking
x86/vdso: Always reject undefined references during linking
vdso: Rework struct vdso_time_data and introduce struct vdso_clock
vdso: Move architecture related data before basetime data
powerpc/vdso: Prepare introduction of struct vdso_clock
arm64/vdso: Prepare introduction of struct vdso_clock
x86/vdso: Prepare introduction of struct vdso_clock
time/namespace: Prepare introduction of struct vdso_clock
vdso/namespace: Rename timens_setup_vdso_data() to reflect new vdso_clock struct
vdso/vsyscall: Prepare introduction of struct vdso_clock
vdso/gettimeofday: Prepare helper functions for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_coarse_timens() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_coarse() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_hres_timens() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare do_hres() for introduction of struct vdso_clock
vdso/gettimeofday: Prepare introduction of struct vdso_clock
vdso/helpers: Prepare introduction of struct vdso_clock
vdso/datapage: Define vdso_clock to prepare for multiple PTP clocks
vdso: Make vdso_time_data cacheline aligned
arm64: Make asm/cache.h compatible with vDSO
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer cleanups from Thomas Gleixner:
"A treewide hrtimer timer cleanup
hrtimers are initialized with hrtimer_init() and a subsequent store to
the callback pointer. This turned out to be suboptimal for the
upcoming Rust integration and is obviously a silly implementation to
begin with.
This cleanup replaces the hrtimer_init(T); T->function = cb; sequence
with hrtimer_setup(T, cb);
The conversion was done with Coccinelle and a few manual fixups.
Once the conversion has completely landed in mainline, hrtimer_init()
will be removed and the hrtimer::function becomes a private member"
* tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (100 commits)
wifi: rt2x00: Switch to use hrtimer_update_function()
io_uring: Use helper function hrtimer_update_function()
serial: xilinx_uartps: Use helper function hrtimer_update_function()
ASoC: fsl: imx-pcm-fiq: Switch to use hrtimer_setup()
RDMA: Switch to use hrtimer_setup()
virtio: mem: Switch to use hrtimer_setup()
drm/vmwgfx: Switch to use hrtimer_setup()
drm/xe/oa: Switch to use hrtimer_setup()
drm/vkms: Switch to use hrtimer_setup()
drm/msm: Switch to use hrtimer_setup()
drm/i915/request: Switch to use hrtimer_setup()
drm/i915/uncore: Switch to use hrtimer_setup()
drm/i915/pmu: Switch to use hrtimer_setup()
drm/i915/perf: Switch to use hrtimer_setup()
drm/i915/gvt: Switch to use hrtimer_setup()
drm/i915/huc: Switch to use hrtimer_setup()
drm/amdgpu: Switch to use hrtimer_setup()
stm class: heartbeat: Switch to use hrtimer_setup()
i2c: Switch to use hrtimer_setup()
iio: Switch to use hrtimer_setup()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq driver updates from Thomas Gleixner:
- Support for hard indices on RISC-V. The hart index identifies a hart
(core) within a specific interrupt domain in RISC-V's Priviledged
Architecture.
- Rework of the RISC-V MSI driver
This moves the driver over to the generic MSI library and solves the
affinity problem of unmaskable PCI/MSI controllers. Unmaskable
PCI/MSI controllers are prone to lose interrupts when the MSI message
is updated to change the affinity because the message write consists
of three 32-bit subsequent writes, which update address and data. As
these writes are non-atomic versus the device raising an interrupt,
the device can observe a half written update and issue an interrupt
on the wrong vector. This is mitiated by a carefully orchestrated
step by step update and the observation of an eventually pending
interrupt on the CPU which issues the update. The algorithm follows
the well established method of the X86 MSI driver.
- A new driver for the RISC-V Sophgo SG2042 MSI controller
- Overhaul of the Renesas RZQ2L driver
Simplification of the probe function by using devm_*() mechanisms,
which avoid the endless list of error prone gotos in the failure
paths.
- Expand the Renesas RZV2H driver to support RZ/G3E SoCs
- A workaround for Rockchip 3568002 erratum in the GIC-V3 driver to
ensure that the addressing is limited to the lower 32-bit of the
physical address space.
- Add support for the Allwinner AS23 NMI controller
- Expand the IMX irqsteer driver to handle up to 960 input interrupts
- The usual small updates, cleanups and device tree changes
* tag 'irq-drivers-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
irqchip/imx-irqsteer: Support up to 960 input interrupts
irqchip/sunxi-nmi: Support Allwinner A523 NMI controller
dt-bindings: irq: sun7i-nmi: Document the Allwinner A523 NMI controller
irqchip/davinci-cp-intc: Remove public header
irqchip/renesas-rzv2h: Add RZ/G3E support
irqchip/renesas-rzv2h: Update macros ICU_TSSR_TSSEL_{MASK,PREP}
irqchip/renesas-rzv2h: Update TSSR_TIEN macro
irqchip/renesas-rzv2h: Add field_width to struct rzv2h_hw_info
irqchip/renesas-rzv2h: Add max_tssel to struct rzv2h_hw_info
irqchip/renesas-rzv2h: Add struct rzv2h_hw_info with t_offs variable
irqchip/renesas-rzv2h: Use devm_pm_runtime_enable()
irqchip/renesas-rzv2h: Use devm_reset_control_get_exclusive_deasserted()
irqchip/renesas-rzv2h: Simplify rzv2h_icu_init()
irqchip/renesas-rzv2h: Drop irqchip from struct rzv2h_icu_priv
irqchip/renesas-rzv2h: Fix wrong variable usage in rzv2h_tint_set_type()
dt-bindings: interrupt-controller: renesas,rzv2h-icu: Document RZ/G3E SoC
riscv: sophgo: dts: Add msi controller for SG2042
irqchip: Add the Sophgo SG2042 MSI interrupt controller
dt-bindings: interrupt-controller: Add Sophgo SG2042 MSI
arm64: dts: rockchip: rk356x: Move PCIe MSI to use GIC ITS instead of MBI
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core & fair scheduler changes:
- Cancel the slice protection of the idle entity (Zihan Zhou)
- Reduce the default slice to avoid tasks getting an extra tick
(Zihan Zhou)
- Force propagating min_slice of cfs_rq when {en,de}queue tasks
(Tianchen Ding)
- Refactor can_migrate_task() to elimate looping (I Hsin Cheng)
- Add unlikey branch hints to several system calls (Colin Ian King)
- Optimize current_clr_polling() on certain architectures (Yujun
Dong)
Deadline scheduler: (Juri Lelli)
- Remove redundant dl_clear_root_domain call
- Move dl_rebuild_rd_accounting to cpuset.h
Uclamp:
- Use the uclamp_is_used() helper instead of open-coding it (Xuewen
Yan)
- Optimize sched_uclamp_used static key enabling (Xuewen Yan)
Scheduler topology support: (Juri Lelli)
- Ignore special tasks when rebuilding domains
- Add wrappers for sched_domains_mutex
- Generalize unique visiting of root domains
- Rebuild root domain accounting after every update
- Remove partition_and_rebuild_sched_domains
- Stop exposing partition_sched_domains_locked
RSEQ: (Michael Jeanson)
- Update kernel fields in lockstep with CONFIG_DEBUG_RSEQ=y
- Fix segfault on registration when rseq_cs is non-zero
- selftests: Add rseq syscall errors test
- selftests: Ensure the rseq ABI TLS is actually 1024 bytes
Membarriers:
- Fix redundant load of membarrier_state (Nysal Jan K.A.)
Scheduler debugging:
- Introduce and use preempt_model_str() (Sebastian Andrzej Siewior)
- Make CONFIG_SCHED_DEBUG unconditional (Ingo Molnar)
Fixes and cleanups:
- Always save/restore x86 TSC sched_clock() on suspend/resume
(Guilherme G. Piccoli)
- Misc fixes and cleanups (Thorsten Blum, Juri Lelli, Sebastian
Andrzej Siewior)"
* tag 'sched-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
cpuidle, sched: Use smp_mb__after_atomic() in current_clr_polling()
sched/debug: Remove CONFIG_SCHED_DEBUG
sched/debug: Remove CONFIG_SCHED_DEBUG from self-test config files
sched/debug, Documentation: Remove (most) CONFIG_SCHED_DEBUG references from documentation
sched/debug: Make CONFIG_SCHED_DEBUG functionality unconditional
sched/debug: Make 'const_debug' tunables unconditional __read_mostly
sched/debug: Change SCHED_WARN_ON() to WARN_ON_ONCE()
rseq/selftests: Fix namespace collision with rseq UAPI header
include/{topology,cpuset}: Move dl_rebuild_rd_accounting to cpuset.h
sched/topology: Stop exposing partition_sched_domains_locked
cgroup/cpuset: Remove partition_and_rebuild_sched_domains
sched/topology: Remove redundant dl_clear_root_domain call
sched/deadline: Rebuild root domain accounting after every update
sched/deadline: Generalize unique visiting of root domains
sched/topology: Wrappers for sched_domains_mutex
sched/deadline: Ignore special tasks when rebuilding domains
tracing: Use preempt_model_str()
xtensa: Rely on generic printing of preemption model
x86: Rely on generic printing of preemption model
s390: Rely on generic printing of preemption model
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
- Mount notifications
The day has come where we finally provide a new api to listen for
mount topology changes outside of /proc/<pid>/mountinfo. A mount
namespace file descriptor can be supplied and registered with
fanotify to listen for mount topology changes.
Currently notifications for mount, umount and moving mounts are
generated. The generated notification record contains the unique
mount id of the mount.
The listmount() and statmount() api can be used to query detailed
information about the mount using the received unique mount id.
This allows userspace to figure out exactly how the mount topology
changed without having to generating diffs of /proc/<pid>/mountinfo
in userspace.
- Support O_PATH file descriptors with FSCONFIG_SET_FD in the new mount
api
- Support detached mounts in overlayfs
Since last cycle we support specifying overlayfs layers via file
descriptors. However, we don't allow detached mounts which means
userspace cannot user file descriptors received via
open_tree(OPEN_TREE_CLONE) and fsmount() directly. They have to
attach them to a mount namespace via move_mount() first.
This is cumbersome and means they have to undo mounts via umount().
Allow them to directly use detached mounts.
- Allow to retrieve idmappings with statmount
Currently it isn't possible to figure out what idmapping has been
attached to an idmapped mount. Add an extension to statmount() which
allows to read the idmapping from the mount.
- Allow creating idmapped mounts from mounts that are already idmapped
So far it isn't possible to allow the creation of idmapped mounts
from already idmapped mounts as this has significant lifetime
implications. Make the creation of idmapped mounts atomic by allow to
pass struct mount_attr together with the open_tree_attr() system call
allowing to solve these issues without complicating VFS lookup in any
way.
The system call has in general the benefit that creating a detached
mount and applying mount attributes to it becomes an atomic operation
for userspace.
- Add a way to query statmount() for supported options
Allow userspace to query which mount information can be retrieved
through statmount().
- Allow superblock owners to force unmount
* tag 'vfs-6.15-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (21 commits)
umount: Allow superblock owners to force umount
selftests: add tests for mount notification
selinux: add FILE__WATCH_MOUNTNS
samples/vfs: fix printf format string for size_t
fs: allow changing idmappings
fs: add kflags member to struct mount_kattr
fs: add open_tree_attr()
fs: add copy_mount_setattr() helper
fs: add vfs_open_tree() helper
statmount: add a new supported_mask field
samples/vfs: add STATMOUNT_MNT_{G,U}IDMAP
selftests: add tests for using detached mount with overlayfs
samples/vfs: check whether flag was raised
statmount: allow to retrieve idmappings
uidgid: add map_id_range_up()
fs: allow detached mounts in clone_private_mount()
selftests/overlayfs: test specifying layers as O_PATH file descriptors
fs: support O_PATH fds with FSCONFIG_SET_FD
vfs: add notifications for mount attach and detach
fanotify: notify on mount attach and detach
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Features:
- Add CONFIG_DEBUG_VFS infrastucture:
- Catch invalid modes in open
- Use the new debug macros in inode_set_cached_link()
- Use debug-only asserts around fd allocation and install
- Place f_ref to 3rd cache line in struct file to resolve false
sharing
Cleanups:
- Start using anon_inode_getfile_fmode() helper in various places
- Don't take f_lock during SEEK_CUR if exclusion is guaranteed by
f_pos_lock
- Add unlikely() to kcmp()
- Remove legacy ->remount_fs method from ecryptfs after port to the
new mount api
- Remove invalidate_inodes() in favour of evict_inodes()
- Simplify ep_busy_loopER by removing unused argument
- Avoid mmap sem relocks when coredumping with many missing pages
- Inline getname()
- Inline new_inode_pseudo() and de-staticize alloc_inode()
- Dodge an atomic in putname if ref == 1
- Consistently deref the files table with rcu_dereference_raw()
- Dedup handling of struct filename init and refcounts bumps
- Use wq_has_sleeper() in end_dir_add()
- Drop the lock trip around I_NEW wake up in evict()
- Load the ->i_sb pointer once in inode_sb_list_{add,del}
- Predict not reaching the limit in alloc_empty_file()
- Tidy up do_sys_openat2() with likely/unlikely
- Call inode_sb_list_add() outside of inode hash lock
- Sort out fd allocation vs dup2 race commentary
- Turn page_offset() into a wrapper around folio_pos()
- Remove locking in exportfs around ->get_parent() call
- try_lookup_one_len() does not need any locks in autofs
- Fix return type of several functions from long to int in open
- Fix return type of several functions from long to int in ioctls
Fixes:
- Fix watch queue accounting mismatch"
* tag 'vfs-6.15-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (30 commits)
fs: sort out fd allocation vs dup2 race commentary, take 2
fs: call inode_sb_list_add() outside of inode hash lock
fs: tidy up do_sys_openat2() with likely/unlikely
fs: predict not reaching the limit in alloc_empty_file()
fs: load the ->i_sb pointer once in inode_sb_list_{add,del}
fs: drop the lock trip around I_NEW wake up in evict()
fs: use wq_has_sleeper() in end_dir_add()
VFS/autofs: try_lookup_one_len() does not need any locks
fs: dedup handling of struct filename init and refcounts bumps
fs: consistently deref the files table with rcu_dereference_raw()
exportfs: remove locking around ->get_parent() call.
fs: use debug-only asserts around fd allocation and install
fs: dodge an atomic in putname if ref == 1
vfs: Remove invalidate_inodes()
ecryptfs: remove NULL remount_fs from super_operations
watch_queue: fix pipe accounting mismatch
fs: place f_ref to 3rd cache line in struct file to resolve false sharing
epoll: simplify ep_busy_loop by removing always 0 argument
fs: Turn page_offset() into a wrapper around folio_pos()
kcmp: improve performance adding an unlikely hint to task comparisons
...
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All implementations of chacha_init_arch() just call
chacha_init_generic(), so it is pointless. Just delete it, and replace
chacha_init() with what was previously chacha_init_generic().
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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hv_get_hypervisor_version(), hv_call_deposit_pages(), and
hv_call_create_vp(), are all needed in-module with CONFIG_MSHV_ROOT=m.
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Stanislav Kinsburskii <skinsburskii@microsoft.linux.com>
Reviewed-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Reviewed-by: Tianyu Lan <tiala@microsoft.com>
Link: https://lore.kernel.org/r/1741980536-3865-7-git-send-email-nunodasneves@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <1741980536-3865-7-git-send-email-nunodasneves@linux.microsoft.com>
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These non-nested msr and fast hypercall functions are present in x86,
but they must be available in both architectures for the root partition
driver code.
While at it, remove the redundant 'extern' keywords from the
hv_do_hypercall() variants in asm-generic/mshyperv.h.
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Reviewed-by: Roman Kisel <romank@linux.microsoft.com>
Link: https://lore.kernel.org/r/1741980536-3865-4-git-send-email-nunodasneves@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <1741980536-3865-4-git-send-email-nunodasneves@linux.microsoft.com>
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The immediate issue being fixed here is a nVMX bug where KVM fails to
detect that, after nested VM-Exit, L1 has a pending IRQ (or NMI).
However, checking for a pending interrupt accesses the legacy PIC, and
x86's kvm_arch_destroy_vm() currently frees the PIC before destroying
vCPUs, i.e. checking for IRQs during the forced nested VM-Exit results
in a NULL pointer deref; that's a prerequisite for the nVMX fix.
The remaining patches attempt to bring a bit of sanity to x86's VM
teardown code, which has accumulated a lot of cruft over the years. E.g.
KVM currently unloads each vCPU's MMUs in a separate operation from
destroying vCPUs, all because when guest SMP support was added, KVM had a
kludgy MMU teardown flow that broke when a VM had more than one 1 vCPU.
And that oddity lived on, for 18 years...
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for 6.15
- Nested virtualization support for VGICv3, giving the nested
hypervisor control of the VGIC hardware when running an L2 VM
- Removal of 'late' nested virtualization feature register masking,
making the supported feature set directly visible to userspace
- Support for emulating FEAT_PMUv3 on Apple silicon, taking advantage
of an IMPLEMENTATION DEFINED trap that covers all PMUv3 registers
- Paravirtual interface for discovering the set of CPU implementations
where a VM may run, addressing a longstanding issue of guest CPU
errata awareness in big-little systems and cross-implementation VM
migration
- Userspace control of the registers responsible for identifying a
particular CPU implementation (MIDR_EL1, REVIDR_EL1, AIDR_EL1),
allowing VMs to be migrated cross-implementation
- pKVM updates, including support for tracking stage-2 page table
allocations in the protected hypervisor in the 'SecPageTable' stat
- Fixes to vPMU, ensuring that userspace updates to the vPMU after
KVM_RUN are reflected into the backing perf events
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https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/dt
Amlogic ARM64 DT changes for v6.15 (v2):
- switch to the new PWM controller binding
- Add gpio_intc node for Amlogic A4 & A5 SoCs
* tag 'amlogic-arm64-dt-for-v6.15-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
arm64: dts: Add gpio_intc node for Amlogic A5 SoCs
arm64: dts: Add gpio_intc node for Amlogic A4 SoCs
arm64: dts: amlogic: g12: switch to the new PWM controller binding
arm64: dts: amlogic: axg: switch to the new PWM controller binding
arm64: dts: amlogic: gx: switch to the new PWM controller binding
Link: https://lore.kernel.org/r/f6fb1b2b-955d-4271-b772-0a75fdba1e48@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Restricted pointers ("%pK") are not meant to be used through printk().
It can unintentionally expose security sensitive, raw pointer values.
Use regular pointer formatting instead.
Link: https://lore.kernel.org/lkml/20250113171731-dc10e3c1-da64-4af0-b767-7c7070468023@linutronix.de/
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://lore.kernel.org/r/20250217-restricted-pointers-arm64-v1-1-14bb1f516b01@linutronix.de
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Add GPIO interrupt controller device.
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://lore.kernel.org/r/20250311-irqchip-gpio-a4-a5-v5-4-ca4cc276c18c@amlogic.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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Add GPIO interrupt controller device.
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://lore.kernel.org/r/20250311-irqchip-gpio-a4-a5-v5-3-ca4cc276c18c@amlogic.com
[narmstrong: fix commit to apply without pinctrl node]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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* kvm-arm64/pmu-fixes:
: vPMU fixes for 6.15 courtesy of Akihiko Odaki
:
: Various fixes to KVM's vPMU implementation, notably ensuring
: userspace-directed changes to the PMCs are reflected in the backing perf
: events.
KVM: arm64: PMU: Reload when resetting
KVM: arm64: PMU: Reload when user modifies registers
KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs
KVM: arm64: PMU: Assume PMU presence in pmu-emul.c
KVM: arm64: PMU: Set raw values from user to PM{C,I}NTEN{SET,CLR}, PMOVS{SET,CLR}
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/pkvm-6.15:
: pKVM updates for 6.15
:
: - SecPageTable stats for stage-2 table pages allocated by the protected
: hypervisor (Vincent Donnefort)
:
: - HCRX_EL2 trap + vCPU initialization fixes for pKVM (Fuad Tabba)
KVM: arm64: Create each pKVM hyp vcpu after its corresponding host vcpu
KVM: arm64: Factor out pKVM hyp vcpu creation to separate function
KVM: arm64: Initialize HCRX_EL2 traps in pKVM
KVM: arm64: Factor out setting HCRX_EL2 traps into separate function
KVM: arm64: Count pKVM stage-2 usage in secondary pagetable stats
KVM: arm64: Distinct pKVM teardown memcache for stage-2
KVM: arm64: Add flags to kvm_hyp_memcache
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/writable-midr:
: Writable implementation ID registers, courtesy of Sebastian Ott
:
: Introduce a new capability that allows userspace to set the
: ID registers that identify a CPU implementation: MIDR_EL1, REVIDR_EL1,
: and AIDR_EL1. Also plug a hole in KVM's trap configuration where
: SMIDR_EL1 was readable at EL1, despite the fact that KVM does not
: support SME.
KVM: arm64: Fix documentation for KVM_CAP_ARM_WRITABLE_IMP_ID_REGS
KVM: arm64: Copy MIDR_EL1 into hyp VM when it is writable
KVM: arm64: Copy guest CTR_EL0 into hyp VM
KVM: selftests: arm64: Test writes to MIDR,REVIDR,AIDR
KVM: arm64: Allow userspace to change the implementation ID registers
KVM: arm64: Load VPIDR_EL2 with the VM's MIDR_EL1 value
KVM: arm64: Maintain per-VM copy of implementation ID regs
KVM: arm64: Set HCR_EL2.TID1 unconditionally
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/pmuv3-asahi:
: Support PMUv3 for KVM guests on Apple silicon
:
: Take advantage of some IMPLEMENTATION DEFINED traps available on Apple
: parts to trap-and-emulate the PMUv3 registers on behalf of a KVM guest.
: Constrain the vPMU to a cycle counter and single event counter, as the
: Apple PMU has events that cannot be counted on every counter.
:
: There is a small new interface between the ARM PMU driver and KVM, where
: the PMU driver owns the PMUv3 -> hardware event mappings.
arm64: Enable IMP DEF PMUv3 traps on Apple M*
KVM: arm64: Provide 1 event counter on IMPDEF hardware
drivers/perf: apple_m1: Provide helper for mapping PMUv3 events
KVM: arm64: Remap PMUv3 events onto hardware
KVM: arm64: Advertise PMUv3 if IMPDEF traps are present
KVM: arm64: Compute synthetic sysreg ESR for Apple PMUv3 traps
KVM: arm64: Move PMUVer filtering into KVM code
KVM: arm64: Use guard() to cleanup usage of arm_pmus_lock
KVM: arm64: Drop kvm_arm_pmu_available static key
KVM: arm64: Use a cpucap to determine if system supports FEAT_PMUv3
KVM: arm64: Always support SW_INCR PMU event
KVM: arm64: Compute PMCEID from arm_pmu's event bitmaps
drivers/perf: apple_m1: Support host/guest event filtering
drivers/perf: apple_m1: Refactor event select/filter configuration
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/pv-cpuid:
: Paravirtualized implementation ID, courtesy of Shameer Kolothum
:
: Big-little has historically been a pain in the ass to virtualize. The
: implementation ID (MIDR, REVIDR, AIDR) of a vCPU can change at the whim
: of vCPU scheduling. This can be particularly annoying when the guest
: needs to know the underlying implementation to mitigate errata.
:
: "Hyperscalers" face a similar scheduling problem, where VMs may freely
: migrate between hosts in a pool of heterogenous hardware. And yes, our
: server-class friends are equally riddled with errata too.
:
: In absence of an architected solution to this wart on the ecosystem,
: introduce support for paravirtualizing the implementation exposed
: to a VM, allowing the VMM to describe the pool of implementations that a
: VM may be exposed to due to scheduling/migration.
:
: Userspace is expected to intercept and handle these hypercalls using the
: SMCCC filter UAPI, should it choose to do so.
smccc: kvm_guest: Fix kernel builds for 32 bit arm
KVM: selftests: Add test for KVM_REG_ARM_VENDOR_HYP_BMAP_2
smccc/kvm_guest: Enable errata based on implementation CPUs
arm64: Make _midr_in_range_list() an exported function
KVM: arm64: Introduce KVM_REG_ARM_VENDOR_HYP_BMAP_2
KVM: arm64: Specify hypercall ABI for retrieving target implementations
arm64: Modify _midr_range() functions to read MIDR/REVIDR internally
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/nv-idregs:
: Changes to exposure of NV features, courtesy of Marc Zyngier
:
: Apply NV-specific feature restrictions at reset rather than at the point
: of KVM_RUN. This makes the true feature set visible to userspace, a
: necessary step towards save/restore support or NV VMs.
:
: Add an additional vCPU feature flag for selecting the E2H0 flavor of NV,
: such that the VHE-ness of the VM can be applied to the feature set.
KVM: arm64: selftests: Test that TGRAN*_2 fields are writable
KVM: arm64: Allow userspace to write ID_AA64MMFR0_EL1.TGRAN*_2
KVM: arm64: Advertise FEAT_ECV when possible
KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable
KVM: arm64: Allow userspace to limit NV support to nVHE
KVM: arm64: Move NV-specific capping to idreg sanitisation
KVM: arm64: Enforce NV limits on a per-idregs basis
KVM: arm64: Make ID_REG_LIMIT_FIELD_ENUM() more widely available
KVM: arm64: Consolidate idreg callbacks
KVM: arm64: Advertise NV2 in the boot messages
KVM: arm64: Mark HCR.EL2.{NV*,AT} RES0 when ID_AA64MMFR4_EL1.NV_frac is 0
KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero
KVM: arm64: Hide ID_AA64MMFR2_EL1.NV from guest and userspace
arm64: cpufeature: Handle NV_frac as a synonym of NV2
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/nv-vgic:
: NV VGICv3 support, courtesy of Marc Zyngier
:
: Support for emulating the GIC hypervisor controls and managing shadow
: VGICv3 state for the L1 hypervisor. As part of it, bring in support for
: taking IRQs to the L1 and UAPI to manage the VGIC maintenance interrupt.
KVM: arm64: nv: Fail KVM init if asking for NV without GICv3
KVM: arm64: nv: Allow userland to set VGIC maintenance IRQ
KVM: arm64: nv: Fold GICv3 host trapping requirements into guest setup
KVM: arm64: nv: Propagate used_lrs between L1 and L0 contexts
KVM: arm64: nv: Request vPE doorbell upon nested ERET to L2
KVM: arm64: nv: Respect virtual HCR_EL2.TWx setting
KVM: arm64: nv: Add Maintenance Interrupt emulation
KVM: arm64: nv: Handle L2->L1 transition on interrupt injection
KVM: arm64: nv: Nested GICv3 emulation
KVM: arm64: nv: Sanitise ICH_HCR_EL2 accesses
KVM: arm64: nv: Plumb handling of GICv3 EL2 accesses
KVM: arm64: nv: Add ICH_*_EL2 registers to vpcu_sysreg
KVM: arm64: nv: Load timer before the GIC
arm64: sysreg: Add layout for ICH_MISR_EL2
arm64: sysreg: Add layout for ICH_VTR_EL2
arm64: sysreg: Add layout for ICH_HCR_EL2
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/misc:
: Miscellaneous fixes/cleanups for KVM/arm64
:
: - Avoid GICv4 vLPI configuration when confronted with user error
:
: - Only attempt vLPI configuration when the target routing is an MSI
:
: - Document ordering requirements to avoid aforementioned user error
KVM: arm64: Tear down vGIC on failed vCPU creation
KVM: arm64: Document ordering requirements for irqbypass
KVM: arm64: vgic-v4: Fall back to software irqbypass if LPI not found
KVM: arm64: vgic-v4: Only WARN for HW IRQ mismatch when unmapping vLPI
KVM: arm64: vgic-v4: Only attempt vLPI mapping for actual MSIs
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/defconfig
Qualcomm Arm64 defconfig updates for v6.15
Explicitly enable the DRM_DISPLAY_CONNECTOR module, as this is used by a
variety of boards.
Enable retimer and redriver drivers used in the USB configuration of a
variety of Qualcomm X Elite-based devices. Enable the NSS clock
controller driver for IPQ9574, the new Iris video encoder/decoder driver
and it's clock controller, as well as the QCM2290 GPU clocck ontroller.
* tag 'qcom-arm64-defconfig-for-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: defconfig: Enable USB retimer and redriver
arm64: defconfig: Build NSS Clock Controller driver for IPQ9574
arm64: defconfig: enable Qualcomm IRIS & VIDEOCC_8550 as module
arm64: defconfig: enable DRM_DISPLAY_CONNECTOR as a module
arm64: defconfig: Enable Qualcomm QCM2290 GPU clock controller
Link: https://lore.kernel.org/r/20250319144354.2281720-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/defconfig
TI K3 defconfig updates for v6.15
- Enable Support for SPI NAND flashes on AM62Ax/J721s2 and other boards
- HSR protocol support for AM65/AM64 ICSSG based multi-port ethernet
- Greybus modules to support CC1352P7 chips on BeaglePlay
* tag 'ti-k3-config-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
arm64: defconfig: Enable SPI NAND flashes
arm64: defconfig: Enable HSR protocol driver
arm64: defconfig: Enable gb_beagleplay
arm64: defconfig: Enable TISCI Interrupt Router and Aggregator
Link: https://lore.kernel.org/r/dec6ccc4-76df-47c3-8622-2c08035eff3e@ti.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/defconfig
Enabling of the HDMI-receiver driver and new UFS storage driver.
* tag 'v6.15-rockchip-defconfig64-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: defconfig: Enable Synopsys HDMI receiver
arm64: defconfig: Enable Rockchip UFS host driver
Link: https://lore.kernel.org/r/3415370.aeNJFYEL58@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://github.com/hisilicon/linux-hisi into soc/dt
ARM64: DT: HiSilicon ARM64 DT updates for v6.15
- Add property to the ETM nodes for fixing CPU idle states
* tag 'hisi-arm64-dt-for-6.15' of https://github.com/hisilicon/linux-hisi:
arm64: dts: hi3660: Add property for fixing CPUIdle
Link: https://lore.kernel.org/r/67D968A9.7080504@hisilicon.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into soc/dt
mvebu dt64 for 6.15 (part 1)
device tree clean-up fomr DT maintainers
* tag 'mvebu-dt64-6.15-1' of https://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu:
arm64: dts: marvell: Use preferred node names for "simple-bus"
arm64: dts: marvell: Drop unused CP11X_TYPE define
arm64: dts: marvell: Move arch timer and pmu nodes to top-level
ARM: dts: marvell: armada: Align GPIO hog name with bindings
ARM: dts: marvell: kirkwood-openrd: Align GPIO hog name with bindings
arm64: dts: marvell: armada-8040: Align GPIO hog name with bindings
arm64: dts: marvell: Add missing board compatible for IEI-Puzzle-M801
arm64: dts: marvell: Fix missing/incorrect "marvell,armada3710" compatible
arm64: dts: marvell: Drop incomplete root compatible/model properties
dt-bindings: marvell: armada-7k-8k: Add missing 7040 and 8040 board compatibles
dt-bindings: marvell: armada-7k-8k: Move Armada 8KPlus to schema
dt-bindings: marvell: armada-37xx: Add glinet,gl-mv1000 compatible
Link: https://lore.kernel.org/r/87wmco99xv.fsf@BLaptop.bootlin.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt
New peripheral the sdhci controller on rk3528. Enablement of hdmi and hdmi
audio on a number of additional boards. Better handling for scmi shared
memory on rk3568 and a fix for the used SCMI clock ids on rk3576.
As well as some fixes that were a bit late for trying to stuff them into
6.14 at this late stage of the cycle.
* tag 'v6.15-rockchip-dts64-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: remove ethm0_clk0_25m_out from Sige5 gmac0
arm64: dts: rockchip: Fix PWM pinctrl names
arm64: dts: rockchip: fix RK3576 SCMI clock IDs
dt-bindings: clock: rk3576: add SCMI clocks
arm64: dts: rockchip: Fix pcie reset gpio on Orange Pi 5 Max
arm64: dts: rockchip: Enable HDMI audio output for ArmSoM Sige7
arm64: dts: rockchip: Enable onboard eMMC on Radxa E20C
arm64: dts: rockchip: Add SDHCI controller for RK3528
arm64: dts: rockchip: Remove bluetooth node from rock-3a
arm64: dts: rockchip: Move rk356x scmi SHMEM to reserved memory
arm64: dts: rockchip: Add AP6275P wireless support to ArmSoM Sige7
arm64: dts: rockchip: Enable HDMI audio outputs for Orange Pi 5 Plus
arm64: dts: rockchip: Enable HDMI1 on Orange Pi 5 Plus
arm64: dts: rockchip: Enable HDMI audio outputs for Orange Pi 5 Max
arm64: dts: rockchip: Enable HDMI0 audio output for Orange Pi 5/5B
Link: https://lore.kernel.org/r/23866869.6Emhk5qWAg@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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