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Linus Torvalds 971199ad2a Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux 
Pull arm64 fixes from Will Deacon:

 - Preserve old 'tt_core' UAPI for Hisilicon L3C PMU driver

 - Ensure linear alias of kprobes instruction page is not writable

 - Fix kernel stack unwinding from BPF

 - Fix build warnings from the Fujitsu uncore PMU documentation

 - Fix hang with deferred 'struct page' initialisation and MTE

 - Consolidate KPTI page-table re-writing code

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mte: Do not flag the zero page as PG_mte_tagged
  docs: perf: Fujitsu: Fix htmldocs build warnings and errors
  arm64: mm: Move KPTI helpers to mmu.c
  tracing: Fix the bug where bpf_get_stackid returns -EFAULT on the ARM64
  arm64: kprobes: call set_memory_rox() for kprobe page
  drivers/perf: hisi: Add tt_core_deprecated for compatibility
 2025-10-07 08:59:25 -07:00
Linus Torvalds 2215336295 Merge tag 'hyperv-next-signed-20251006' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux 
Pull hyperv updates from Wei Liu:

 - Unify guest entry code for KVM and MSHV (Sean Christopherson)

 - Switch Hyper-V MSI domain to use msi_create_parent_irq_domain()
   (Nam Cao)

 - Add CONFIG_HYPERV_VMBUS and limit the semantics of CONFIG_HYPERV
   (Mukesh Rathor)

 - Add kexec/kdump support on Azure CVMs (Vitaly Kuznetsov)

 - Deprecate hyperv_fb in favor of Hyper-V DRM driver (Prasanna
   Kumar T S M)

 - Miscellaneous enhancements, fixes and cleanups (Abhishek Tiwari,
   Alok Tiwari, Nuno Das Neves, Wei Liu, Roman Kisel, Michael Kelley)

* tag 'hyperv-next-signed-20251006' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  hyperv: Remove the spurious null directive line
  MAINTAINERS: Mark hyperv_fb driver Obsolete
  fbdev/hyperv_fb: deprecate this in favor of Hyper-V DRM driver
  Drivers: hv: Make CONFIG_HYPERV bool
  Drivers: hv: Add CONFIG_HYPERV_VMBUS option
  Drivers: hv: vmbus: Fix typos in vmbus_drv.c
  Drivers: hv: vmbus: Fix sysfs output format for ring buffer index
  Drivers: hv: vmbus: Clean up sscanf format specifier in target_cpu_store()
  x86/hyperv: Switch to msi_create_parent_irq_domain()
  mshv: Use common "entry virt" APIs to do work in root before running guest
  entry: Rename "kvm" entry code assets to "virt" to genericize APIs
  entry/kvm: KVM: Move KVM details related to signal/-EINTR into KVM proper
  mshv: Handle NEED_RESCHED_LAZY before transferring to guest
  x86/hyperv: Add kexec/kdump support on Azure CVMs
  Drivers: hv: Simplify data structures for VMBus channel close message
  Drivers: hv: util: Cosmetic changes for hv_utils_transport.c
  mshv: Add support for a new parent partition configuration
  clocksource: hyper-v: Skip unnecessary checks for the root partition
  hyperv: Add missing field to hv_output_map_device_interrupt
 2025-10-07 08:40:15 -07:00
Linus Torvalds b66451723c Merge tag 'platform-drivers-x86-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 
Pull x86 platform driver updates from Ilpo Järvinen:

 - amd/pmf:
    - Add support for adjusting PMF PPT and PPT APU thresholds
    - Extend custom BIOS inputs for more policies
    - Update ta_pmf_action structure to the latest PMF TA

 - arm64:
    - thinkpad-t14s-ec: Add EC driver for ThinkPad T14s Gen6 Snapdragon

 - int3472:
    - Increase handshake GPIO delay

 - intel/pmc:
    - SSRAM support for Lunar Lake and Panther Lake
    - Support reading substate requirements data from S0ix blockers
      (for platforms starting from Panther Lake)
    - Wildcat Lake support

 - intel-uncore-freq:
    - Solve duplicate sysfs entry warnings
    - Present unique domain ID per package

 - portwell-ec:
    - Support suspend/resume
    - Add hwmon support for voltage and temperature

 - redmi-wmi:
    - Add WMI driver for Redmibook keyboard

 - think-lmi:
    - Certificate support for ThinkCenter

 - x86-android-tables + others:
    - Convert away from legacy GPIO APIs

 - x86-android-tables:
    - Add support for Acer A1-840 tablet
    - Fix modules list for Lenovo devices
    - Stop using EPROBE_DEFER

 - Miscellaneous cleanups / refactoring / improvements

* tag 'platform-drivers-x86-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (63 commits)
  platform/x86: pcengines-apuv2: Use static device properties
  platform/x86: meraki-mx100: Use static device properties
  platform/x86: barco-p50-gpio: use software nodes for gpio-leds/keys
  platform/x86: x86-android-tablets: Stop using EPROBE_DEFER
  platform/x86: x86-android-tablets: Fix modules lists for Lenovo devices
  platform/x86: x86-android-tablets: Simplify lenovo_yoga_tab2_830_1050_exit()
  platform/x86: x86-android-tablets: Add support for Acer A1-840 tablet
  platform/x86: x86-android-tablets: Move Acer info to its own file
  platform/x86: x86-android-tablets: Update my email address
  platform/x86: x86-android-tablets: Simplify node-group [un]registration
  platform/x86: x86-android-tablets: use swnode_group instead of manual registering
  platform/x86: x86-android-tablets: replace bat_swnode with swnode_group
  platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references
  platform/x86: x86-android-tablets: remove support for GPIO lookup tables
  platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references
  platform/x86: x86-android-tablets: convert HID-I2C devices to GPIO references
  platform/x86: x86-android-tablets: convert wm1502 devices to GPIO references
  platform/x86: x86-android-tablets: convert int3496 devices to GPIO references
  platform/x86: x86-android-tablets: convert EDT devices to GPIO references
  platform/x86: x86-android-tablets: convert Novatek devices to GPIO references
  ...
 2025-10-04 15:28:18 -07:00
Linus Torvalds 908057d185 Merge tag 'v6.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 
Pull crypto updates from Herbert Xu:
 "Drivers:
   - Add ciphertext hiding support to ccp
   - Add hashjoin, gather and UDMA data move features to hisilicon
   - Add lz4 and lz77_only to hisilicon
   - Add xilinx hwrng driver
   - Add ti driver with ecb/cbc aes support
   - Add ring buffer idle and command queue telemetry for GEN6 in qat

  Others:
   - Use rcu_dereference_all to stop false alarms in rhashtable
   - Fix CPU number wraparound in padata"

* tag 'v6.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (78 commits)
  dt-bindings: rng: hisi-rng: convert to DT schema
  crypto: doc - Add explicit title heading to API docs
  hwrng: ks-sa - fix division by zero in ks_sa_rng_init
  KEYS: X.509: Fix Basic Constraints CA flag parsing
  crypto: anubis - simplify return statement in anubis_mod_init
  crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs
  crypto: hisilicon/qm - clear all VF configurations in the hardware
  crypto: hisilicon - enable error reporting again
  crypto: hisilicon/qm - mask axi error before memory init
  crypto: hisilicon/qm - invalidate queues in use
  crypto: qat - Return pointer directly in adf_ctl_alloc_resources
  crypto: aspeed - Fix dma_unmap_sg() direction
  rhashtable: Use rcu_dereference_all and rcu_dereference_all_check
  crypto: comp - Use same definition of context alloc and free ops
  crypto: omap - convert from tasklet to BH workqueue
  crypto: qat - Replace kzalloc() + copy_from_user() with memdup_user()
  crypto: caam - double the entropy delay interval for retry
  padata: WQ_PERCPU added to alloc_workqueue users
  padata: replace use of system_unbound_wq with system_dfl_wq
  crypto: cryptd - WQ_PERCPU added to alloc_workqueue users
  ...
 2025-10-04 14:59:29 -07:00
Linus Torvalds f3826aa996 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm 
Pull kvm updates from Paolo Bonzini:
 "This excludes the bulk of the x86 changes, which I will send
  separately. They have two not complex but relatively unusual conflicts
  so I will wait for other dust to settle.

  guest_memfd:

   - Add support for host userspace mapping of guest_memfd-backed memory
     for VM types that do NOT use support KVM_MEMORY_ATTRIBUTE_PRIVATE
     (which isn't precisely the same thing as CoCo VMs, since x86's
     SEV-MEM and SEV-ES have no way to detect private vs. shared).

     This lays the groundwork for removal of guest memory from the
     kernel direct map, as well as for limited mmap() for
     guest_memfd-backed memory.

     For more information see:
       - commit a6ad54137a ("Merge branch 'guest-memfd-mmap' into HEAD")
       - guest_memfd in Firecracker:
           https://github.com/firecracker-microvm/firecracker/tree/feature/secret-hiding
       - direct map removal:
           https://lore.kernel.org/all/20250221160728.1584559-1-roypat@amazon.co.uk/
       - mmap support:
           https://lore.kernel.org/all/20250328153133.3504118-1-tabba@google.com/

  ARM:

   - Add support for FF-A 1.2 as the secure memory conduit for pKVM,
     allowing more registers to be used as part of the message payload.

   - Change the way pKVM allocates its VM handles, making sure that the
     privileged hypervisor is never tricked into using uninitialised
     data.

   - Speed up MMIO range registration by avoiding unnecessary RCU
     synchronisation, which results in VMs starting much quicker.

   - Add the dump of the instruction stream when panic-ing in the EL2
     payload, just like the rest of the kernel has always done. This
     will hopefully help debugging non-VHE setups.

   - Add 52bit PA support to the stage-1 page-table walker, and make use
     of it to populate the fault level reported to the guest on failing
     to translate a stage-1 walk.

   - Add NV support to the GICv3-on-GICv5 emulation code, ensuring
     feature parity for guests, irrespective of the host platform.

   - Fix some really ugly architecture problems when dealing with debug
     in a nested VM. This has some bad performance impacts, but is at
     least correct.

   - Add enough infrastructure to be able to disable EL2 features and
     give effective values to the EL2 control registers. This then
     allows a bunch of features to be turned off, which helps cross-host
     migration.

   - Large rework of the selftest infrastructure to allow most tests to
     transparently run at EL2. This is the first step towards enabling
     NV testing.

   - Various fixes and improvements all over the map, including one BE
     fix, just in time for the removal of the feature.

  LoongArch:

   - Detect page table walk feature on new hardware

   - Add sign extension with kernel MMIO/IOCSR emulation

   - Improve in-kernel IPI emulation

   - Improve in-kernel PCH-PIC emulation

   - Move kvm_iocsr tracepoint out of generic code

  RISC-V:

   - Added SBI FWFT extension for Guest/VM with misaligned delegation
     and pointer masking PMLEN features

   - Added ONE_REG interface for SBI FWFT extension

   - Added Zicbop and bfloat16 extensions for Guest/VM

   - Enabled more common KVM selftests for RISC-V

   - Added SBI v3.0 PMU enhancements in KVM and perf driver

  s390:

   - Improve interrupt cpu for wakeup, in particular the heuristic to
     decide which vCPU to deliver a floating interrupt to.

   - Clear the PTE when discarding a swapped page because of CMMA; this
     bug was introduced in 6.16 when refactoring gmap code.

  x86 selftests:

   - Add #DE coverage in the fastops test (the only exception that's
     guest- triggerable in fastop-emulated instructions).

   - Fix PMU selftests errors encountered on Granite Rapids (GNR),
     Sierra Forest (SRF) and Clearwater Forest (CWF).

   - Minor cleanups and improvements

  x86 (guest side):

   - For the legacy PCI hole (memory between TOLUD and 4GiB) to UC when
     overriding guest MTRR for TDX/SNP to fix an issue where ACPI
     auto-mapping could map devices as WB and prevent the device drivers
     from mapping their devices with UC/UC-.

   - Make kvm_async_pf_task_wake() a local static helper and remove its
     export.

   - Use native qspinlocks when running in a VM with dedicated
     vCPU=>pCPU bindings even when PV_UNHALT is unsupported.

  Generic:

   - Remove a redundant __GFP_NOWARN from kvm_setup_async_pf() as
     __GFP_NOWARN is now included in GFP_NOWAIT.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (178 commits)
  KVM: s390: Fix to clear PTE when discarding a swapped page
  KVM: arm64: selftests: Cover ID_AA64ISAR3_EL1 in set_id_regs
  KVM: arm64: selftests: Remove a duplicate register listing in set_id_regs
  KVM: arm64: selftests: Cope with arch silliness in EL2 selftest
  KVM: arm64: selftests: Add basic test for running in VHE EL2
  KVM: arm64: selftests: Enable EL2 by default
  KVM: arm64: selftests: Initialize HCR_EL2
  KVM: arm64: selftests: Use the vCPU attr for setting nr of PMU counters
  KVM: arm64: selftests: Use hyp timer IRQs when test runs at EL2
  KVM: arm64: selftests: Select SMCCC conduit based on current EL
  KVM: arm64: selftests: Provide helper for getting default vCPU target
  KVM: arm64: selftests: Alias EL1 registers to EL2 counterparts
  KVM: arm64: selftests: Create a VGICv3 for 'default' VMs
  KVM: arm64: selftests: Add unsanitised helpers for VGICv3 creation
  KVM: arm64: selftests: Add helper to check for VGICv3 support
  KVM: arm64: selftests: Initialize VGICv3 only once
  KVM: arm64: selftests: Provide kvm_arch_vm_post_create() in library code
  KVM: selftests: Add ex_str() to print human friendly name of exception vectors
  selftests/kvm: remove stale TODO in xapic_state_test
  KVM: selftests: Handle Intel Atom errata that leads to PMU event overcount
  ...
 2025-10-04 08:52:16 -07:00
Catalin Marinas f620d66af3 arm64: mte: Do not flag the zero page as PG_mte_tagged 
Commit 68d54ceeec ("arm64: mte: Allow PTRACE_PEEKMTETAGS access to the
zero page") attempted to fix ptrace() reading of tags from the zero page
by marking it as PG_mte_tagged during cpu_enable_mte(). The same commit
also changed the ptrace() tag access permission check to the VM_MTE vma
flag while turning the page flag test into a WARN_ON_ONCE().

Attempting to set the PG_mte_tagged flag early with
CONFIG_DEFERRED_STRUCT_PAGE_INIT enabled may either hang (after commit
d77e59a8fc "arm64: mte: Lock a page for MTE tag initialisation") or
have the flags cleared later during page_alloc_init_late(). In addition,
pages_identical() -> memcmp_pages() will reject any comparison with the
zero page as it is marked as tagged.

Partially revert the above commit to avoid setting PG_mte_tagged on the
zero page. Update the __access_remote_tags() warning on untagged pages
to ignore the zero page since it is known to have the tags initialised.

Note that all user mapping of the zero page are marked as pte_special().
The arm64 set_pte_at() will not call mte_sync_tags() on such pages, so
PG_mte_tagged will remain cleared.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 68d54ceeec ("arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page")
Reported-by: Gergely Kovacs <Gergely.Kovacs2@arm.com>
Cc: stable@vger.kernel.org # 5.10.x
Cc: Will Deacon <will@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Lance Yang <lance.yang@linux.dev>
Acked-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Lance Yang <lance.yang@linux.dev>
Signed-off-by: Will Deacon <will@kernel.org>
 2025-10-03 15:27:34 +01:00
Linus Torvalds 8804d970fa Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 
Pull MM updates from Andrew Morton:

 - "mm, swap: improve cluster scan strategy" from Kairui Song improves
   performance and reduces the failure rate of swap cluster allocation

 - "support large align and nid in Rust allocators" from Vitaly Wool
   permits Rust allocators to set NUMA node and large alignment when
   perforning slub and vmalloc reallocs

 - "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend
   DAMOS_STAT's handling of the DAMON operations sets for virtual
   address spaces for ops-level DAMOS filters

 - "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren
   Baghdasaryan reduces mmap_lock contention during reads of
   /proc/pid/maps

 - "mm/mincore: minor clean up for swap cache checking" from Kairui Song
   performs some cleanup in the swap code

 - "mm: vm_normal_page*() improvements" from David Hildenbrand provides
   code cleanup in the pagemap code

 - "add persistent huge zero folio support" from Pankaj Raghav provides
   a block layer speedup by optionalls making the
   huge_zero_pagepersistent, instead of releasing it when its refcount
   falls to zero

 - "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to
   the recently added Kexec Handover feature

 - "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo
   Stoakes turns mm_struct.flags into a bitmap. To end the constant
   struggle with space shortage on 32-bit conflicting with 64-bit's
   needs

 - "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap
   code

 - "selftests/mm: Fix false positives and skip unsupported tests" from
   Donet Tom fixes a few things in our selftests code

 - "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised"
   from David Hildenbrand "allows individual processes to opt-out of
   THP=always into THP=madvise, without affecting other workloads on the
   system".

   It's a long story - the [1/N] changelog spells out the considerations

 - "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on
   the memdesc project. Please see

      https://kernelnewbies.org/MatthewWilcox/Memdescs and
      https://blogs.oracle.com/linux/post/introducing-memdesc

 - "Tiny optimization for large read operations" from Chi Zhiling
   improves the efficiency of the pagecache read path

 - "Better split_huge_page_test result check" from Zi Yan improves our
   folio splitting selftest code

 - "test that rmap behaves as expected" from Wei Yang adds some rmap
   selftests

 - "remove write_cache_pages()" from Christoph Hellwig removes that
   function and converts its two remaining callers

 - "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD
   selftests issues

 - "introduce kernel file mapped folios" from Boris Burkov introduces
   the concept of "kernel file pages". Using these permits btrfs to
   account its metadata pages to the root cgroup, rather than to the
   cgroups of random inappropriate tasks

 - "mm/pageblock: improve readability of some pageblock handling" from
   Wei Yang provides some readability improvements to the page allocator
   code

 - "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON
   to understand arm32 highmem

 - "tools: testing: Use existing atomic.h for vma/maple tests" from
   Brendan Jackman performs some code cleanups and deduplication under
   tools/testing/

 - "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes
   a couple of 32-bit issues in tools/testing/radix-tree.c

 - "kasan: unify kasan_enabled() and remove arch-specific
   implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific
   initialization code into a common arch-neutral implementation

 - "mm: remove zpool" from Johannes Weiner removes zspool - an
   indirection layer which now only redirects to a single thing
   (zsmalloc)

 - "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a
   couple of cleanups in the fork code

 - "mm: remove nth_page()" from David Hildenbrand makes rather a lot of
   adjustments at various nth_page() callsites, eventually permitting
   the removal of that undesirable helper function

 - "introduce kasan.write_only option in hw-tags" from Yeoreum Yun
   creates a KASAN read-only mode for ARM, using that architecture's
   memory tagging feature. It is felt that a read-only mode KASAN is
   suitable for use in production systems rather than debug-only

 - "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does
   some tidying in the hugetlb folio allocation code

 - "mm: establish const-correctness for pointer parameters" from Max
   Kellermann makes quite a number of the MM API functions more accurate
   about the constness of their arguments. This was getting in the way
   of subsystems (in this case CEPH) when they attempt to improving
   their own const/non-const accuracy

 - "Cleanup free_pages() misuse" from Vishal Moola fixes a number of
   code sites which were confused over when to use free_pages() vs
   __free_pages()

 - "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the
   mapletree code accessible to Rust. Required by nouveau and by its
   forthcoming successor: the new Rust Nova driver

 - "selftests/mm: split_huge_page_test: split_pte_mapped_thp
   improvements" from David Hildenbrand adds a fix and some cleanups to
   the thp selftesting code

 - "mm, swap: introduce swap table as swap cache (phase I)" from Chris
   Li and Kairui Song is the first step along the path to implementing
   "swap tables" - a new approach to swap allocation and state tracking
   which is expected to yield speed and space improvements. This
   patchset itself yields a 5-20% performance benefit in some situations

 - "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc
   layer to clean up the ptdesc code a little

 - "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some
   issues in our 5-level pagetable selftesting code

 - "Minor fixes for memory allocation profiling" from Suren Baghdasaryan
   addresses a couple of minor issues in relatively new memory
   allocation profiling feature

 - "Small cleanups" from Matthew Wilcox has a few cleanups in
   preparation for more memdesc work

 - "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from
   Quanmin Yan makes some changes to DAMON in furtherance of supporting
   arm highmem

 - "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad
   Anjum adds that compiler check to selftests code and fixes the
   fallout, by removing dead code

 - "Improvements to Victim Process Thawing and OOM Reaper Traversal
   Order" from zhongjinji makes a number of improvements in the OOM
   killer: mainly thawing a more appropriate group of victim threads so
   they can release resources

 - "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park
   is a bunch of small and unrelated fixups for DAMON

 - "mm/damon: define and use DAMON initialization check function" from
   SeongJae Park implement reliability and maintainability improvements
   to a recently-added bug fix

 - "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from
   SeongJae Park provides additional transparency to userspace clients
   of the DAMON_STAT information

 - "Expand scope of khugepaged anonymous collapse" from Dev Jain removes
   some constraints on khubepaged's collapsing of anon VMAs. It also
   increases the success rate of MADV_COLLAPSE against an anon vma

 - "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()"
   from Lorenzo Stoakes moves us further towards removal of
   file_operations.mmap(). This patchset concentrates upon clearing up
   the treatment of stacked filesystems

 - "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau
   provides some fixes and improvements to mlock's tracking of large
   folios. /proc/meminfo's "Mlocked" field became more accurate

 - "mm/ksm: Fix incorrect accounting of KSM counters during fork" from
   Donet Tom fixes several user-visible KSM stats inaccuracies across
   forks and adds selftest code to verify these counters

 - "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses
   some potential but presently benign issues in KSM's mm_slot handling

* tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits)
  mm: swap: check for stable address space before operating on the VMA
  mm: convert folio_page() back to a macro
  mm/khugepaged: use start_addr/addr for improved readability
  hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list
  alloc_tag: fix boot failure due to NULL pointer dereference
  mm: silence data-race in update_hiwater_rss
  mm/memory-failure: don't select MEMORY_ISOLATION
  mm/khugepaged: remove definition of struct khugepaged_mm_slot
  mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL
  hugetlb: increase number of reserving hugepages via cmdline
  selftests/mm: add fork inheritance test for ksm_merging_pages counter
  mm/ksm: fix incorrect KSM counter handling in mm_struct during fork
  drivers/base/node: fix double free in register_one_node()
  mm: remove PMD alignment constraint in execmem_vmalloc()
  mm/memory_hotplug: fix typo 'esecially' -> 'especially'
  mm/rmap: improve mlock tracking for large folios
  mm/filemap: map entire large folio faultaround
  mm/fault: try to map the entire file folio in finish_fault()
  mm/rmap: mlock large folios in try_to_unmap_one()
  mm/rmap: fix a mlock race condition in folio_referenced_one()
  ...
 2025-10-02 18:18:33 -07:00
Linus Torvalds 7f70725741 Merge tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux 
Pull Kbuild updates from Nathan Chancellor:

 - Extend modules.builtin.modinfo to include module aliases from
   MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such
   as kmod) can verify that a particular module alias will be handled by
   a builtin module

 - Bump the minimum version of LLVM for building the kernel to 15.0.0

 - Upgrade several userspace API checks in headers_check.pl to errors

 - Unify and consolidate CONFIG_WERROR / W=e handling

 - Turn assembler and linker warnings into errors with CONFIG_WERROR /
   W=e

 - Respect CONFIG_WERROR / W=e when building userspace programs
   (userprogs)

 - Enable -Werror unconditionally when building host programs
   (hostprogs)

 - Support copy_file_range() and data segment alignment in gen_init_cpio
   to improve performance on filesystems that support reflinks such as
   btrfs and XFS

 - Miscellaneous small changes to scripts and configuration files

* tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits)
  modpost: Initialize builtin_modname to stop SIGSEGVs
  Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds
  kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o
  modpost: Create modalias for builtin modules
  modpost: Add modname to mod_device_table alias
  scsi: Always define blogic_pci_tbl structure
  kbuild: extract modules.builtin.modinfo from vmlinux.unstripped
  kbuild: keep .modinfo section in vmlinux.unstripped
  kbuild: always create intermediate vmlinux.unstripped
  s390: vmlinux.lds.S: Reorder sections
  KMSAN: Remove tautological checks
  objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY
  lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
  riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs
  riscv: Unconditionally use linker relaxation
  riscv: Remove version check for LTO_CLANG selects
  powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault()
  mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER
  arm64: Remove tautological LLVM Kconfig conditions
  ARM: Clean up definition of ARM_HAS_GROUP_RELOCS
  ...
 2025-10-01 20:58:51 -07:00
Linus Torvalds 38057e3236 Merge tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC driver updates from Arnd Bergmann:
 "Lots of platform specific updates for Qualcomm SoCs, including a new
  TEE subsystem driver for the Qualcomm QTEE firmware interface.

  Added support for the Apple A11 SoC in drivers that are shared with
  the M1/M2 series, among more updates for those.

  Smaller platform specific driver updates for Renesas, ASpeed,
  Broadcom, Nvidia, Mediatek, Amlogic, TI, Allwinner, and Freescale
  SoCs.

  Driver updates in the cache controller, memory controller and reset
  controller subsystems.

  SCMI firmware updates to add more features and improve robustness.
  This includes support for having multiple SCMI providers in a single
  system.

  TEE subsystem support for protected DMA-bufs, allowing hardware to
  access memory areas that managed by the kernel but remain inaccessible
  from the CPU in EL1/EL0"

* tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (139 commits)
  soc/fsl/qbman: Use for_each_online_cpu() instead of for_each_cpu()
  soc: fsl: qe: Drop legacy-of-mm-gpiochip.h header from GPIO driver
  soc: fsl: qe: Change GPIO driver to a proper platform driver
  tee: fix register_shm_helper()
  pmdomain: apple: Add "apple,t8103-pmgr-pwrstate"
  dt-bindings: spmi: Add Apple A11 and T2 compatible
  serial: qcom-geni: Load UART qup Firmware from linux side
  spi: geni-qcom: Load spi qup Firmware from linux side
  i2c: qcom-geni: Load i2c qup Firmware from linux side
  soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem
  soc: qcom: geni-se: Cleanup register defines and update copyright
  dt-bindings: qcom: se-common: Add QUP Peripheral-specific properties for I2C, SPI, and SERIAL bus
  Documentation: tee: Add Qualcomm TEE driver
  tee: qcom: enable TEE_IOC_SHM_ALLOC ioctl
  tee: qcom: add primordial object
  tee: add Qualcomm TEE driver
  tee: increase TEE_MAX_ARG_SIZE to 4096
  tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF
  tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF
  tee: add close_context to TEE driver operation
  ...
 2025-10-01 17:32:51 -07:00
Linus Torvalds f8912147db Merge tag 'soc-defconfig-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC defconfig updates from Arnd Bergmann:
 "Only a small set up updates, enabling a few drivers for Artpec, THead,
  Renesas and Broadcom chips, and cleaning out some Qualcomm options
  that were removed previously"

* tag 'soc-defconfig-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: configs: u8500: Set NFC_SHDLC as built-in
  riscv: defconfig: Enable MMP_PDMA support for SpacemiT K1 SoC
  riscv: defconfig: run savedefconfig to reorder it
  ARM: defconfig: Remove obsolete CONFIG_USB_EHCI_MSM
  arm64: defconfig: Enable Marvell WiFi-Ex USB driver
  arm64: defconfig: Enable BCM2712 on-chip pin controller driver
  arm64: defconfig: Enable Axis ARTPEC SoC
  ARM: s3c6400_defconfig: Drop MTD_NAND_S3C2410
  ARM: defconfig: pxa: Remove duplicate CONFIG_USB_GPIO_VBUS entry
  ARM: defconfig: cleanup orphaned CONFIGs
  arm64: defconfig: enable i.MX91 pinctrl
  arm64: defconfig: Enable X1P42100 GPUCC driver
  arm64: defconfig: Enable QCS615 clock controllers
  arm64: defconfig: Enable the RZ/V2H(P) RSPI driver
  arm64: defconfig: Enable Renesas RZ/T2H serial SCI
 2025-10-01 17:25:57 -07:00
Linus Torvalds 0f048c878e Merge tag 'soc-dt-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC dt updates from Arnd Bergmann:
 "There are five sets of new SoCs that get added in existing families,
  all of them being either upgrades or cut-down versions of the older
  chips:

   - Apple M2 Pro, M2 Max and M2 Ultra, used in the 2022/2023 generation
     of high-end workstations and laptops from Apple. Linux has been
     working on these for a while but stil requires patches.

   - Axis Artpec8 is an Armv8 chip based on Samsung Exynos design,
     unlike the earlier Armv7 Artpec6 from the same company that was
     part of a separate family of chips.

   - NXP i.MX91 is a cut-down version of i.MX93, using only a single
     Cortex-A55 core.

   - Qualcomm Lemans Auto is a variant of the Lemans SoC that was
     originally merged under the sa8775p name, the differences being
     mostly the firmware configuration of the platform.

   - Four new Renesas SoCs RZ/T2H (r9a09g077m44), RZ/N2H (r9a09g087m44),
     RZ/T2H (r9a09g077), and RZ/N2H (r9a09g087) are all industrial
     bedded SoCs based on Cortex-A55 cores

  In total, there are 65 new machines, including:

   - Industrial embedded system and single-board computers based on NXP,
     Allwinner, TI, Rockchips, Marvell, Xilinx Spacemit, Starfive chips.

   - Reference boards for the newly added Renesas, Qualcomm, NXP and
     Axis ARMv8 chips as well as Microchip's MPFS RISC-V SoC

   - Laptops and Workstations using Apple M2 and Qualcomm Snapdragon X1
     chips.

   - Several Samsung phones using Qualcomm Snapdragon chips

   - Set-top boxes based on Allwinner H313

   - Five BMC boards using 32-bit ASpeed SoCs

   - Three network routers using IXP4xx (ARMv5!) and Broadcom bcm4708
     (ARMv7) SoCs

  Two machines get phased out because they were available only in small
  quantities but never made it into products: one STi407 based reference
  board, and a Snapdragon 845 based Chromebook.

  Aside from the newly added machines, a lot of work went into improving
  hardware support on the existing machines and cleaning up contents for
  validation"

* tag 'soc-dt-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (931 commits)
  arm64: dts: apm-shadowcat: Drop "apm,xgene2-pcie" compatible
  arm64: dts: apm-shadowcat: Move slimpro nodes out of "simple-bus" node
  ARM: dts: microchip: sam9x7: Add qspi controller
  arm64: dts: qcom: Add MST pixel streams for displayport
  arm64: dts: qcom: sm6350: correct DP compatibility strings
  arm64: dts: qcom: monaco-evk: Enable Adreno 623 GPU
  arm64: dts: qcom: qcs8300-ride: Enable Adreno 623 GPU
  arm64: dts: qcom: qcs8300: Add gpu and gmu nodes
  arm64: dts: allwinner: h313: Add Amediatech X96Q
  dt-bindings: arm: sunxi: Add Amediatech X96Q
  arm64: dts: apple: t8015: Add SPMI node
  arm64: dts: apple: t8012: Add SPMI node
  arm64: dts: apple: Add J180d (Mac Pro, M2 Ultra, 2023) device tree
  arm64: dts: rockchip: Add devicetree for the ROC-RK3588-RT
  dt-bindings: arm: rockchip: Add Firefly ROC-RK3588-RT
  arm64: dts: rockchip: update pinctrl names for Radxa E52C
  arm64: dts: rockchip: remove vcc_3v3_pmu regulator for Radxa E52C
  arm64: dts: apple: Add J474s, J475c and J475d device trees
  arm64: dts: apple: Add J414 and J416 Macbook Pro device trees
  arm64: dts: apple: Add initial t6020/t6021/t6022 DTs
  ...
 2025-10-01 17:19:38 -07:00
Linus Torvalds 991053178e Merge tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 
Pull power management updates from Rafael Wysocki:
 "The majority of these are cpufreq changes, which has been a recurring
  pattern for a few recent cycles.

  Those changes include new hardware support (AN7583 SoC support in the
  airoha cpufreq driver, ipq5424 support in the qcom-nvmem cpufreq
  driver, MT8196 support in the mediatek cpufreq driver, AM62D2 support
  in the ti cpufreq driver), DT bindings and Rust code updates, cleanups
  of the core and governors, and multiple driver fixes and cleanups.

  Beyond that, there are hibernation fixes (some remaining 6.16 cycle
  fallout and an issue related to hybrid suspend in the amdgpu driver),
  cleanups of the PM core code, runtime PM documentation update, cpuidle
  and power capping cleanups, and tooling updates.

  Specifics:

   - Rearrange variable declarations involving __free() in the cpufreq
     core and intel_pstate driver to follow common coding style (Rafael
     Wysocki)

   - Fix object lifecycle issue in update_qos_request(), rearrange freq
     QoS updates using __free(), and adjust frequency percentage
     computations in the intel_pstate driver (Rafael Wysocki)

   - Update intel_pstate to allow it to enable HWP without EPP if the
     new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael
     Wysocki)

   - Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver to
     simplify the code (Rafael Wysocki)

   - Use likely() optimization in intel_pstate_sample() (Yaxiong Tian)

   - Remove dead EPB-related code from intel_pstate (Srinivas
     Pandruvada)

   - Use scope-based cleanup for cpufreq policy references in multiple
     cpufreq drivers (Zihuan Zhang)

   - Avoid calling get_governor() for the first policy in the cpufreq
     core to simplify the initial policy path (Zihuan Zhang)

   - Clean up the cpufreq core in multiple places (Zihuan Zhang)

   - Use int type to store negative error codes in the cpufreq core and
     update the speedstep-lib to use int for error codes (Qianfeng Rong)

   - Update the efficient idle check for Intel extended Families in the
     ondemand cpufreq governor (Sohil Mehta)

   - Replace sscanf() with kstrtouint() in the conservative cpufreq
     governor (Kaushlendra Kumar)

   - Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask
     Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste
     Lepers)

   - Update ARef and AlwaysRefCounted imports from sync::aref in the OPP
     Rust code (Shankari Anand)

   - Add support for AN7583 SoC to the airoha cpufreq driver (Christian
     Marangi)

   - Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md
     Sadre Alam)

   - Add support for MT8196 to the mediatek-hw cpufreq driver, refactor
     that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas
     Frattaroli)

   - Avoid redundant conditions in the mediatek cpufreq driver (Liao
     Yuanhong)

   - Add support for AM62D2 to the ti cpufreq driver and blocklist
     ti,am62d2 SoC in dt-platdev (Paresh Bhagat)

   - Support more speed grades on AM62Px SoC in the ti cpufreq driver,
     allow all silicon revisions to support OPPs in it, and fix
     supported hardware for 1GHz OPP (Judith Mendez)

   - Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya
     Das)

   - Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx
     cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian
     Fainelli)

   - Remove outdated cpufreq-dt.txt (Frank Li)

   - Fix python gnuplot package names in the amd_pstate_tracer utility
     (Kuan-Wei Chiu)

   - Saravana Kannan will maintain the virtual-cpufreq driver (Saravana
     Kannan)

   - Prevent CPU capacity updates after registering a perf domain from
     failing on a first CPU that is not present (Christian Loehle)

   - Add support for the cases in which frequency alone is not
     sufficient to uniquely identify an OPP (Krishna Chaitanya Chundru)

   - Use to_result() for OPP error handling in Rust (Onur Özkan)

   - Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi
     devfreq driver (Nicolas Frattaroli)

   - Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X)
     are reported as half by adding a cycle multiplier to the DFI driver
     in rockchip-dfi devfreq-event driver (Nicolas Frattaroli)

   - Fix missing error pointer dereference check of regulator instance
     in the mtk-cci devfreq driver probe and remove a redundant
     condition from an if () statement in that driver (Dan Carpenter,
     Liao Yuanhong)

   - Fail cpuidle device registration if there is one already to avoid
     sysfs-related issues (Rafael Wysocki)

   - Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf()
     in cpuidle (Vivek Yadav)

   - Fix device and OF node leaks at probe in the qcom-spm cpuidle
     driver and drop unnecessary initialisations from it (Johan Hovold)

   - Remove unnecessary address-of operators from the intel_idle cpuidle
     driver (Kaushlendra Kumar)

   - Rearrange main loop in menu_select() to make the code in that
     funtion easier to follow (Rafael Wysocki)

   - Convert values in microseconds to ktime using us_to_ktime() where
     applicable in the intel_idle power capping driver (Xichao Zhao)

   - Annotate loops walking device links in the power management core
     code as _srcu and add macros for walking device links to reduce the
     likelihood of coding mistakes related to them (Rafael Wysocki)

   - Document time units for *_time functions in the runtime PM API
     (Brian Norris)

   - Clear power.must_resume in noirq suspend error path to avoid
     resuming a dependant device under a suspended parent or supplier
     (Rafael Wysocki)

   - Fix GFP mask handling during hybrid suspend and make the amdgpu
     driver handle hybrid suspend correctly (Mario Limonciello, Rafael
     Wysocki)

   - Fix GFP mask handling after aborted hibernation in platform mode
     and combine exit paths in power_down() to avoid code duplication
     (Rafael Wysocki)

   - Use vmalloc_array() and vcalloc() in the hibernation core to avoid
     open-coded size computations (Qianfeng Rong)

   - Fix typo in hibernation core code comment (Li Jun)

   - Call pm_wakeup_clear() in the same place where other functions that
     do bookkeeping prior to suspend_prepare() are called (Samuel Wu)

   - Fix and clean up the x86_energy_perf_policy utility and update its
     documentation (Len Brown, Kaushlendra Kumar)

   - Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra
     Kumar)

   - Fix incorrect size in cpuidle_state_disable() and the error return
     value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)"

* tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
  PM: hibernate: Combine return paths in power_down()
  PM: hibernate: Restrict GFP mask in power_down()
  PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage
  PM: runtime: Documentation: ABI: Document time units for *_time
  tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces
  tools/power x86_energy_perf_policy: Add make snapshot target
  tools/power x86_energy_perf_policy: Prefer driver HWP limits
  tools/power x86_energy_perf_policy: EPB access is only via sysfs
  tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring
  tools/power x86_energy_perf_policy: Enhance HWP enable
  tools/power x86_energy_perf_policy: Enhance HWP enabled check
  tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage
  tools/power turbostat: Fix incorrect sorting of PMT telemetry
  drm/amd: Fix hybrid sleep
  PM: hibernate: Add pm_hibernation_mode_is_suspend()
  PM: hibernate: Fix hybrid-sleep
  tools/cpupower: Fix incorrect size in cpuidle_state_disable()
  tools/power/x86/amd_pstate_tracer: Fix python gnuplot package names
  cpufreq: Replace pointer subtraction with iteration macro
  cpuidle: Fail cpuidle device registration if there is one already
  ...
 2025-10-01 16:08:37 -07:00
Linus Torvalds ae28ed4578 Merge tag 'bpf-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 
Pull bpf updates from Alexei Starovoitov:

 - Support pulling non-linear xdp data with bpf_xdp_pull_data() kfunc
   (Amery Hung)

   Applied as a stable branch in bpf-next and net-next trees.

 - Support reading skb metadata via bpf_dynptr (Jakub Sitnicki)

   Also a stable branch in bpf-next and net-next trees.

 - Enforce expected_attach_type for tailcall compatibility (Daniel
   Borkmann)

 - Replace path-sensitive with path-insensitive live stack analysis in
   the verifier (Eduard Zingerman)

   This is a significant change in the verification logic. More details,
   motivation, long term plans are in the cover letter/merge commit.

 - Support signed BPF programs (KP Singh)

   This is another major feature that took years to materialize.

   Algorithm details are in the cover letter/marge commit

 - Add support for may_goto instruction to s390 JIT (Ilya Leoshkevich)

 - Add support for may_goto instruction to arm64 JIT (Puranjay Mohan)

 - Fix USDT SIB argument handling in libbpf (Jiawei Zhao)

 - Allow uprobe-bpf program to change context registers (Jiri Olsa)

 - Support signed loads from BPF arena (Kumar Kartikeya Dwivedi and
   Puranjay Mohan)

 - Allow access to union arguments in tracing programs (Leon Hwang)

 - Optimize rcu_read_lock() + migrate_disable() combination where it's
   used in BPF subsystem (Menglong Dong)

 - Introduce bpf_task_work_schedule*() kfuncs to schedule deferred
   execution of BPF callback in the context of a specific task using the
   kernel’s task_work infrastructure (Mykyta Yatsenko)

 - Enforce RCU protection for KF_RCU_PROTECTED kfuncs (Kumar Kartikeya
   Dwivedi)

 - Add stress test for rqspinlock in NMI (Kumar Kartikeya Dwivedi)

 - Improve the precision of tnum multiplier verifier operation
   (Nandakumar Edamana)

 - Use tnums to improve is_branch_taken() logic (Paul Chaignon)

 - Add support for atomic operations in arena in riscv JIT (Pu Lehui)

 - Report arena faults to BPF error stream (Puranjay Mohan)

 - Search for tracefs at /sys/kernel/tracing first in bpftool (Quentin
   Monnet)

 - Add bpf_strcasecmp() kfunc (Rong Tao)

 - Support lookup_and_delete_elem command in BPF_MAP_STACK_TRACE (Tao
   Chen)

* tag 'bpf-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (197 commits)
  libbpf: Replace AF_ALG with open coded SHA-256
  selftests/bpf: Add stress test for rqspinlock in NMI
  selftests/bpf: Add test case for different expected_attach_type
  bpf: Enforce expected_attach_type for tailcall compatibility
  bpftool: Remove duplicate string.h header
  bpf: Remove duplicate crypto/sha2.h header
  libbpf: Fix error when st-prefix_ops and ops from differ btf
  selftests/bpf: Test changing packet data from kfunc
  selftests/bpf: Add stacktrace map lookup_and_delete_elem test case
  selftests/bpf: Refactor stacktrace_map case with skeleton
  bpf: Add lookup_and_delete_elem for BPF_MAP_STACK_TRACE
  selftests/bpf: Fix flaky bpf_cookie selftest
  selftests/bpf: Test changing packet data from global functions with a kfunc
  bpf: Emit struct bpf_xdp_sock type in vmlinux BTF
  selftests/bpf: Task_work selftest cleanup fixes
  MAINTAINERS: Delete inactive maintainers from AF_XDP
  bpf: Mark kfuncs as __noclone
  selftests/bpf: Add kprobe multi write ctx attach test
  selftests/bpf: Add kprobe write ctx attach test
  selftests/bpf: Add uprobe context ip register change test
  ...
 2025-09-30 17:58:11 -07:00
Linus Torvalds 4b81e2eb9e Merge tag 'timers-vdso-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull VDSO updates from Thomas Gleixner:

 - Further consolidation of the VDSO infrastructure and the common data
   store

 - Simplification of the related Kconfig logic

 - Improve the VDSO selftest suite

* tag 'timers-vdso-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests: vDSO: Drop vdso_test_clock_getres
  selftests: vDSO: vdso_test_abi: Add tests for clock_gettime64()
  selftests: vDSO: vdso_test_abi: Test CPUTIME clocks
  selftests: vDSO: vdso_test_abi: Use explicit indices for name array
  selftests: vDSO: vdso_test_abi: Drop clock availability tests
  selftests: vDSO: vdso_test_abi: Use ksft_finished()
  selftests: vDSO: vdso_test_abi: Correctly skip whole test with missing vDSO
  selftests: vDSO: Fix -Wunitialized in powerpc VDSO_CALL() wrapper
  vdso: Add struct __kernel_old_timeval forward declaration to gettime.h
  vdso: Gate VDSO_GETRANDOM behind HAVE_GENERIC_VDSO
  vdso: Drop Kconfig GENERIC_VDSO_TIME_NS
  vdso: Drop Kconfig GENERIC_VDSO_DATA_STORE
  vdso: Drop kconfig GENERIC_COMPAT_VDSO
  vdso: Drop kconfig GENERIC_VDSO_32
  riscv: vdso: Untangle Kconfig logic
  time: Build generic update_vsyscall() only with generic time vDSO
  vdso/gettimeofday: Remove !CONFIG_TIME_NS stubs
  vdso: Move ENABLE_COMPAT_VDSO from core to arm64
  ARM: VDSO: Remove cntvct_ok global variable
  vdso/datastore: Gate time data behind CONFIG_GENERIC_GETTIMEOFDAY
 2025-09-30 16:58:21 -07:00
Sean Christopherson 9be7e1e320 entry: Rename "kvm" entry code assets to "virt" to genericize APIs 
Rename the "kvm" entry code files and Kconfigs to use generic "virt"
nomenclature so that the code can be reused by other hypervisors (or
rather, their root/dom0 partition drivers), without incorrectly suggesting
the code somehow relies on and/or involves KVM.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
 2025-09-30 22:50:18 +00:00
Sean Christopherson 6d0386ea99 entry/kvm: KVM: Move KVM details related to signal/-EINTR into KVM proper 
Move KVM's morphing of pending signals into userspace exits into KVM
proper, and drop the @vcpu param from xfer_to_guest_mode_handle_work().
How KVM responds to -EINTR is a detail that really belongs in KVM itself,
and invoking kvm_handle_signal_exit() from kernel code creates an inverted
module dependency.  E.g. attempting to move kvm_handle_signal_exit() into
kvm_main.c would generate an linker error when building kvm.ko as a module.

Dropping KVM details will also converting the KVM "entry" code into a more
generic virtualization framework so that it can be used when running as a
Hyper-V root partition.

Lastly, eliminating usage of "struct kvm_vcpu" outside of KVM is also nice
to have for KVM x86 developers, as keeping the details of kvm_vcpu purely
within KVM allows changing the layout of the structure without having to
boot into a new kernel, e.g. allows rebuilding and reloading kvm.ko with a
modified kvm_vcpu structure as part of debug/development.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
 2025-09-30 22:50:18 +00:00
Linus Torvalds 6c7340a7a8 Merge tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull scheduler updates from Ingo Molnar:
 "Core scheduler changes:

   - Make migrate_{en,dis}able() inline, to improve performance
     (Menglong Dong)

   - Move STDL_INIT() functions out-of-line (Peter Zijlstra)

   - Unify the SCHED_{SMT,CLUSTER,MC} Kconfig (Peter Zijlstra)

  Fair scheduling:

   - Defer throttling to when tasks exit to user-space, to reduce the
     chance & impact of throttle-preemption with held locks and other
     resources (Aaron Lu, Valentin Schneider)

   - Get rid of sched_domains_curr_level hack for tl->cpumask(), as the
     warning was getting triggered on certain topologies (Peter
     Zijlstra)

  Misc cleanups & fixes:

   - Header cleanups (Menglong Dong)

   - Fix race in push_dl_task() (Harshit Agarwal)"

* tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix some typos in include/linux/preempt.h
  sched: Make migrate_{en,dis}able() inline
  rcu: Replace preempt.h with sched.h in include/linux/rcupdate.h
  arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c
  sched/fair: Do not balance task to a throttled cfs_rq
  sched/fair: Do not special case tasks in throttled hierarchy
  sched/fair: update_cfs_group() for throttled cfs_rqs
  sched/fair: Propagate load for throttled cfs_rq
  sched/fair: Get rid of throttled_lb_pair()
  sched/fair: Task based throttle time accounting
  sched/fair: Switch to task based throttle model
  sched/fair: Implement throttle task work and related helpers
  sched/fair: Add related data structure for task based throttle
  sched: Unify the SCHED_{SMT,CLUSTER,MC} Kconfig
  sched: Move STDL_INIT() functions out-of-line
  sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask()
  sched/deadline: Fix race in push_dl_task()
 2025-09-30 10:35:11 -07:00
Paolo Bonzini 6a13749717 Merge tag 'loongarch-kvm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD 
LoongArch KVM changes for v6.18

1. Add PTW feature detection on new hardware.
2. Add sign extension with kernel MMIO/IOCSR emulation.
3. Improve in-kernel IPI emulation.
4. Improve in-kernel PCH-PIC emulation.
5. Move kvm_iocsr tracepoint out of generic code.
 2025-09-30 13:23:44 -04:00
Paolo Bonzini 924ccf1d09 Merge tag 'kvm-riscv-6.18-1' of https://github.com/kvm-riscv/linux into HEAD 
KVM/riscv changes for 6.18

- Added SBI FWFT extension for Guest/VM with misaligned
  delegation and pointer masking PMLEN features
- Added ONE_REG interface for SBI FWFT extension
- Added Zicbop and bfloat16 extensions for Guest/VM
- Enabled more common KVM selftests for RISC-V such as
  access_tracking_perf_test, dirty_log_perf_test,
  memslot_modification_stress_test, memslot_perf_test,
  mmu_stress_test, and rseq_test
- Added SBI v3.0 PMU enhancements in KVM and perf driver
 2025-09-30 13:23:36 -04:00
Paolo Bonzini 924ebaefce Merge tag 'kvmarm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD 
KVM/arm64 updates for 6.18

- Add support for FF-A 1.2 as the secure memory conduit for pKVM,
  allowing more registers to be used as part of the message payload.

- Change the way pKVM allocates its VM handles, making sure that the
  privileged hypervisor is never tricked into using uninitialised
  data.

- Speed up MMIO range registration by avoiding unnecessary RCU
  synchronisation, which results in VMs starting much quicker.

- Add the dump of the instruction stream when panic-ing in the EL2
  payload, just like the rest of the kernel has always done. This will
  hopefully help debugging non-VHE setups.

- Add 52bit PA support to the stage-1 page-table walker, and make use
  of it to populate the fault level reported to the guest on failing
  to translate a stage-1 walk.

- Add NV support to the GICv3-on-GICv5 emulation code, ensuring
  feature parity for guests, irrespective of the host platform.

- Fix some really ugly architecture problems when dealing with debug
  in a nested VM. This has some bad performance impacts, but is at
  least correct.

- Add enough infrastructure to be able to disable EL2 features and
  give effective values to the EL2 control registers. This then allows
  a bunch of features to be turned off, which helps cross-host
  migration.

- Large rework of the selftest infrastructure to allow most tests to
  transparently run at EL2. This is the first step towards enabling
  NV testing.

- Various fixes and improvements all over the map, including one BE
  fix, just in time for the removal of the feature.
 2025-09-30 13:23:28 -04:00
Paolo Bonzini 8cbb0df294 Merge tag 'kvmarm-fixes-6.17-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD 
KVM/arm64 changes for 6.17, round #3

 - Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
   visiting from an MMU notifier

 - Fixes to the TLB match process and TLB invalidation range for
   managing the VCNR pseudo-TLB

 - Prevent SPE from erroneously profiling guests due to UNKNOWN reset
   values in PMSCR_EL1

 - Fix save/restore of host MDCR_EL2 to account for eagerly programming
   at vcpu_load() on VHE systems

 - Correct lock ordering when dealing with VGIC LPIs, avoiding scenarios
   where an xarray's spinlock was nested with a *raw* spinlock

 - Permit stage-2 read permission aborts which are possible in the case
   of NV depending on the guest hypervisor's stage-2 translation

 - Call raw_spin_unlock() instead of the internal spinlock API

 - Fix parameter ordering when assigning VBAR_EL1

[Pull into kvm/master to fix conflicts. - Paolo]
 2025-09-30 13:23:06 -04:00
Linus Torvalds feafee2845 Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux 
Pull arm64 updates from Will Deacon:
 "There's good stuff across the board, including some nice mm
  improvements for CPUs with the 'noabort' BBML2 feature and a clever
  patch to allow ptdump to play nicely with block mappings in the
  vmalloc area.

  Confidential computing:

   - Add support for accepting secrets from firmware (e.g. ACPI CCEL)
     and mapping them with appropriate attributes.

  CPU features:

   - Advertise atomic floating-point instructions to userspace

   - Extend Spectre workarounds to cover additional Arm CPU variants

   - Extend list of CPUs that support break-before-make level 2 and
     guarantee not to generate TLB conflict aborts for changes of
     mapping granularity (BBML2_NOABORT)

   - Add GCS support to our uprobes implementation.

  Documentation:

   - Remove bogus SME documentation concerning register state when
     entering/exiting streaming mode.

  Entry code:

   - Switch over to the generic IRQ entry code (GENERIC_IRQ_ENTRY)

   - Micro-optimise syscall entry path with a compiler branch hint.

  Memory management:

   - Enable huge mappings in vmalloc space even when kernel page-table
     dumping is enabled

   - Tidy up the types used in our early MMU setup code

   - Rework rodata= for closer parity with the behaviour on x86

   - For CPUs implementing BBML2_NOABORT, utilise block mappings in the
     linear map even when rodata= applies to virtual aliases

   - Don't re-allocate the virtual region between '_text' and '_stext',
     as doing so confused tools parsing /proc/vmcore.

  Miscellaneous:

   - Clean-up Kconfig menuconfig text for architecture features

   - Avoid redundant bitmap_empty() during determination of supported
     SME vector lengths

   - Re-enable warnings when building the 32-bit vDSO object

   - Avoid breaking our eggs at the wrong end.

  Perf and PMUs:

   - Support for v3 of the Hisilicon L3C PMU

   - Support for Hisilicon's MN and NoC PMUs

   - Support for Fujitsu's Uncore PMU

   - Support for SPE's extended event filtering feature

   - Preparatory work to enable data source filtering in SPE

   - Support for multiple lanes in the DWC PCIe PMU

   - Support for i.MX94 in the IMX DDR PMU driver

   - MAINTAINERS update (Thank you, Yicong)

   - Minor driver fixes (PERF_IDX2OFF() overflow, CMN register offsets).

  Selftests:

   - Add basic LSFE check to the existing hwcaps test

   - Support nolibc in GCS tests

   - Extend SVE ptrace test to pass unsupported regsets and invalid
     vector lengths

   - Minor cleanups (typos, cosmetic changes).

  System registers:

   - Fix ID_PFR1_EL1 definition

   - Fix incorrect signedness of some fields in ID_AA64MMFR4_EL1

   - Sync TCR_EL1 definition with the latest Arm ARM (L.b)

   - Be stricter about the input fed into our AWK sysreg generator
     script

   - Typo fixes and removal of redundant definitions.

  ACPI, EFI and PSCI:

   - Decouple Arm's "Software Delegated Exception Interface" (SDEI)
     support from the ACPI GHES code so that it can be used by platforms
     booted with device-tree

   - Remove unnecessary per-CPU tracking of the FPSIMD state across EFI
     runtime calls

   - Fix a node refcount imbalance in the PSCI device-tree code.

  CPU Features:

   - Ensure register sanitisation is applied to fields in ID_AA64MMFR4

   - Expose AIDR_EL1 to userspace via sysfs, primarily so that KVM
     guests can reliably query the underlying CPU types from the VMM

   - Re-enabling of SME support (CONFIG_ARM64_SME) as a result of fixes
     to our context-switching, signal handling and ptrace code"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
  arm64: cpufeature: Remove duplicate asm/mmu.h header
  arm64: Kconfig: Make CPU_BIG_ENDIAN depend on BROKEN
  perf/dwc_pcie: Fix use of uninitialized variable
  arm/syscalls: mark syscall invocation as likely in invoke_syscall
  Documentation: hisi-pmu: Add introduction to HiSilicon V3 PMU
  Documentation: hisi-pmu: Fix of minor format error
  drivers/perf: hisi: Add support for L3C PMU v3
  drivers/perf: hisi: Refactor the event configuration of L3C PMU
  drivers/perf: hisi: Extend the field of tt_core
  drivers/perf: hisi: Extract the event filter check of L3C PMU
  drivers/perf: hisi: Simplify the probe process of each L3C PMU version
  drivers/perf: hisi: Export hisi_uncore_pmu_isr()
  drivers/perf: hisi: Relax the event ID check in the framework
  perf: Fujitsu: Add the Uncore PMU driver
  arm64: map [_text, _stext) virtual address range non-executable+read-only
  arm64/sysreg: Update TCR_EL1 register
  arm64: Enable vmalloc-huge with ptdump
  arm64: cpufeature: add Neoverse-V3AE to BBML2 allow list
  arm64: errata: Apply workarounds for Neoverse-V3AE
  arm64: cputype: Add Neoverse-V3AE definitions
  ...
 2025-09-29 18:48:39 -07:00
Linus Torvalds a5ba183bde Merge tag 'hardening-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux 
Pull hardening updates from Kees Cook:
 "One notable addition is the creation of the 'transitional' keyword for
  kconfig so CONFIG renaming can go more smoothly.

  This has been a long-standing deficiency, and with the renaming of
  CONFIG_CFI_CLANG to CONFIG_CFI (since GCC will soon have KCFI
  support), this came up again.

  The breadth of the diffstat is mainly this renaming.

   - Clean up usage of TRAILING_OVERLAP() (Gustavo A. R. Silva)

   - lkdtm: fortify: Fix potential NULL dereference on kmalloc failure
     (Junjie Cao)

   - Add str_assert_deassert() helper (Lad Prabhakar)

   - gcc-plugins: Remove TODO_verify_il for GCC >= 16

   - kconfig: Fix BrokenPipeError warnings in selftests

   - kconfig: Add transitional symbol attribute for migration support

   - kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI"

* tag 'hardening-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  lib/string_choices: Add str_assert_deassert() helper
  kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI
  kconfig: Add transitional symbol attribute for migration support
  kconfig: Fix BrokenPipeError warnings in selftests
  gcc-plugins: Remove TODO_verify_il for GCC >= 16
  stddef: Introduce __TRAILING_OVERLAP()
  stddef: Remove token-pasting in TRAILING_OVERLAP()
  lkdtm: fortify: Fix potential NULL dereference on kmalloc failure
 2025-09-29 17:48:27 -07:00
Linus Torvalds 722df25ddf Merge tag 'kernel-6.18-rc1.clone3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs 
Pull copy_process updates from Christian Brauner:
 "This contains the changes to enable support for clone3() on nios2
  which apparently is still a thing.

  The more exciting part of this is that it cleans up the inconsistency
  in how the 64-bit flag argument is passed from copy_process() into the
  various other copy_*() helpers"

[ Fixed up rv ltl_monitor 32-bit support as per Sasha Levin in the merge ]

* tag 'kernel-6.18-rc1.clone3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  nios2: implement architecture-specific portion of sys_clone3
  arch: copy_thread: pass clone_flags as u64
  copy_process: pass clone_flags as u64 across calltree
  copy_sighand: Handle architectures where sizeof(unsigned long) < sizeof(u64)
 2025-09-29 10:36:50 -07:00
Sebastian Reichel a90a8ea288 arm64: dts: qcom: x1e80100-t14s: add EC 
Describe ThinkPad Embedded Controller in the T14s device tree,
which adds LED and special key support.

Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on Thinkpad T14S OLED
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Link: https://patch.msgid.link/20250918-thinkpad-t14s-ec-v5-3-ac0bc6382c5c@collabora.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
 2025-09-26 14:26:07 +03:00
Kevin Brodsky 200b0d2508 arm64: mm: Move KPTI helpers to mmu.c 
create_kpti_ng_temp_pgd() is currently defined (as an alias) in
mmu.c without matching declaration in a header; instead cpufeature.c
makes its own declaration. This is clearly not pretty, and as commit
ceca927c86 ("arm64: mm: Fix CFI failure due to kpti_ng_pgd_alloc
function signature") showed, it also makes it very easy for the
prototypes to go out of sync.

All this would be much simpler if kpti_install_ng_mappings() and
associated functions lived in mmu.c, where they logically belong.
This is what this patch does:
- Move kpti_install_ng_mappings() and associated functions from
  cpufeature.c to mmu.c, add a declaration to <asm/mmu.h>
- Remove create_kpti_ng_temp_pgd() and just call
  __create_pgd_mapping_locked() directly instead
- Mark all these functions __init
- Move __initdata after kpti_ng_temp_alloc (as suggested by
  checkpatch)

Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com>
[will: Fix conflicts with init_idmap_kpti_bbml2_flag()]
Signed-off-by: Will Deacon <will@kernel.org>
 2025-09-25 14:47:19 +01:00
Feng Yang fd2f74f8f3 tracing: Fix the bug where bpf_get_stackid returns -EFAULT on the ARM64 
When using bpf_program__attach_kprobe_multi_opts on ARM64 to hook a BPF program
that contains the bpf_get_stackid function, the BPF program fails
to obtain the stack trace and returns -EFAULT.

This is because ftrace_partial_regs omits the configuration of the pstate register,
leaving pstate at the default value of 0. When get_perf_callchain executes,
it uses user_mode(regs) to determine whether it is in kernel mode.
This leads to a misjudgment that the code is in user mode,
so perf_callchain_kernel is not executed and the function returns directly.
As a result, trace->nr becomes 0, and finally -EFAULT is returned.

Therefore, the assignment of the pstate register is added here.

Fixes: b9b55c8912 ("tracing: Add ftrace_partial_regs() for converting ftrace_regs to pt_regs")
Closes: https://lore.kernel.org/bpf/20250919071902.554223-1-yangfeng59949@163.com/
Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
 2025-09-25 13:59:26 +01:00
Yang Shi 195a1b7d83 arm64: kprobes: call set_memory_rox() for kprobe page 
The kprobe page is allocated by execmem allocator with ROX permission.
It needs to call set_memory_rox() to set proper permission for the
direct map too. It was missed.

Fixes: 10d5e97c1b ("arm64: use PAGE_KERNEL_ROX directly in alloc_insn_page")
Cc: <stable@vger.kernel.org>
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
 2025-09-25 13:56:48 +01:00
Menglong Dong 35561bab76 arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c 
The include/generated/asm-offsets.h is generated in Kbuild during
compiling from arch/SRCARCH/kernel/asm-offsets.c. When we want to
generate another similar offset header file, circular dependency can
happen.

For example, we want to generate a offset file include/generated/test.h,
which is included in include/sched/sched.h. If we generate asm-offsets.h
first, it will fail, as include/sched/sched.h is included in asm-offsets.c
and include/generated/test.h doesn't exist; If we generate test.h first,
it can't success neither, as include/generated/asm-offsets.h is included
by it.

In x86_64, the macro COMPILE_OFFSETS is used to avoid such circular
dependency. We can generate asm-offsets.h first, and if the
COMPILE_OFFSETS is defined, we don't include the "generated/test.h".

And we define the macro COMPILE_OFFSETS for all the asm-offsets.c for this
purpose.

Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
 2025-09-25 09:57:15 +02:00
Linus Torvalds ea78c19081 Merge tag 'soc-fixes-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 
Pull SoC fixes from Arnd Bergmann:
 "There are a few minor code fixes for tegra firmware, i.MX firmware
  and the eyeq reset controller, and a MAINTAINERS update as Alyssa
  Rosenzweig moves on to non-kernel projects.

  The other changes are all for devicetree files:

   - Multiple Marvell Armada SoCs need changes to fix PCIe, audio and
     SATA

   - A socfpga board fails to probe the ethernet phy

   - The two temperature sensors on i.MX8MP are swapped

   - Allwinner devicetree files cause build-time warnings

   - Two Rockchip based boards need corrections for headphone detection
     and SPI flash"

* tag 'soc-fixes-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  MAINTAINERS: remove Alyssa Rosenzweig
  firmware: tegra: Do not warn on missing memory-region property
  arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports
  arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes
  arm64: dts: marvell: cn913x-solidrun: fix sata ports status
  ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients
  arm64: dts: imx8mp: Correct thermal sensor index
  ARM: imx: Kconfig: Adjust select after renamed config option
  firmware: imx: Add stub functions for SCMI CPU API
  firmware: imx: Add stub functions for SCMI LMM API
  firmware: imx: Add stub functions for SCMI MISC API
  riscv: dts: allwinner: rename devterm i2c-gpio node to comply with binding
  arm64: dts: rockchip: Fix the headphone detection on the orangepi 5
  arm64: dts: rockchip: Add vcc supply for SPI Flash on NanoPC-T6
  ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address
  reset: eyeq: fix OF node leak
  ARM64: dts: mcbin: fix SATA ports on Macchiatobin
  ARM: dts: armada-370-db: Fix stereo audio input routing on Armada 370
  ARM: dts: allwinner: Minor whitespace cleanup
 2025-09-24 14:37:44 -07:00
Kees Cook 23ef9d4397 kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI 
The kernel's CFI implementation uses the KCFI ABI specifically, and is
not strictly tied to a particular compiler. In preparation for GCC
supporting KCFI, rename CONFIG_CFI_CLANG to CONFIG_CFI (along with
associated options).

Use new "transitional" Kconfig option for old CONFIG_CFI_CLANG that will
enable CONFIG_CFI during olddefconfig.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250923213422.1105654-3-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
 2025-09-24 14:29:14 -07:00
Rafael J. Wysocki c51f0d3b6e Merge back earlier cpufreq material for 6.18 2025-09-24 21:32:28 +02:00
Jiapeng Chong ea0b39168d arm64: cpufeature: Remove duplicate asm/mmu.h header 
./arch/arm64/kernel/cpufeature.c: asm/mmu.h is included more than once.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Will Deacon <will@kernel.org>
 2025-09-24 16:44:44 +01:00
Will Deacon be9c94ca4e Merge branch 'for-next/vdso' into for-next/core 
* for-next/vdso:
  arm64: vdso32: Respect -Werror from kbuild
  arm64: vdso32: Stop suppressing warnings
 2025-09-24 16:35:10 +01:00
Will Deacon 4e4e36dce3 Merge branch 'for-next/uprobes' into for-next/core 
* for-next/uprobes:
  arm64: probes: Fix incorrect bl/blr address and register usage
  uprobes: uprobe_warn should use passed task
  arm64: Kconfig: Remove GCS restrictions on UPROBES
  arm64: uprobes: Add GCS support to uretprobes
  arm64: probes: Add GCS support to bl/blr/ret
  arm64: uaccess: Add additional userspace GCS accessors
  arm64: uaccess: Move existing GCS accessors definitions to gcs.h
  arm64: probes: Break ret out from bl/blr
 2025-09-24 16:35:06 +01:00
Will Deacon c7c7eb4f0e Merge branch 'for-next/sysregs' into for-next/core 
* for-next/sysregs:
  arm64/sysreg: Update TCR_EL1 register
  arm64: sysreg: Add validation checks to sysreg header generation script
  arm64: sysreg: Correct sign definitions for EIESB and DoubleLock
  arm64: sysreg: Fix and tidy up sysreg field definitions
 2025-09-24 16:35:01 +01:00
Will Deacon f2d64a22fa Merge branch 'for-next/perf' into for-next/core 
* for-next/perf: (29 commits)
  perf/dwc_pcie: Fix use of uninitialized variable
  Documentation: hisi-pmu: Add introduction to HiSilicon V3 PMU
  Documentation: hisi-pmu: Fix of minor format error
  drivers/perf: hisi: Add support for L3C PMU v3
  drivers/perf: hisi: Refactor the event configuration of L3C PMU
  drivers/perf: hisi: Extend the field of tt_core
  drivers/perf: hisi: Extract the event filter check of L3C PMU
  drivers/perf: hisi: Simplify the probe process of each L3C PMU version
  drivers/perf: hisi: Export hisi_uncore_pmu_isr()
  drivers/perf: hisi: Relax the event ID check in the framework
  perf: Fujitsu: Add the Uncore PMU driver
  perf/arm-cmn: Fix CMN S3 DTM offset
  perf: arm_spe: Prevent overflow in PERF_IDX2OFF()
  coresight: trbe: Prevent overflow in PERF_IDX2OFF()
  MAINTAINERS: Remove myself from HiSilicon PMU maintainers
  drivers/perf: hisi: Add support for HiSilicon MN PMU driver
  drivers/perf: hisi: Add support for HiSilicon NoC PMU
  perf: arm_pmuv3: Factor out PMCCNTR_EL0 use conditions
  arm64/boot: Enable EL2 requirements for SPE_FEAT_FDS
  arm64/boot: Factor out a macro to check SPE version
  ...
 2025-09-24 16:34:52 +01:00
Will Deacon 77dfca70ba Merge branch 'for-next/mm' into for-next/core 
* for-next/mm:
  arm64: map [_text, _stext) virtual address range non-executable+read-only
  arm64: Enable vmalloc-huge with ptdump
  arm64: mm: split linear mapping if BBML2 unsupported on secondary CPUs
  arm64: mm: support large block mapping when rodata=full
  arm64: Enable permission change on arm64 kernel block mappings
  arm64/Kconfig: Remove CONFIG_RODATA_FULL_DEFAULT_ENABLED
  arm64: mm: Rework the 'rodata=' options
  arm64: mm: Represent physical memory with phys_addr_t and resource_size_t
  arm64: mm: Make map_fdt() return mapped pointer
  arm64: mm: Cast start/end markers to char *, not u64
 2025-09-24 16:34:34 +01:00
Will Deacon 30f9386820 Merge branch 'for-next/misc' into for-next/core 
* for-next/misc:
  arm64: Kconfig: Make CPU_BIG_ENDIAN depend on BROKEN
  arm64: Kconfig: Spell out "ARMv9.4" in menuconfig text
  arm64/fpsimd: simplify sme_setup()
 2025-09-24 16:34:06 +01:00
Will Deacon 7df73a0049 Merge branch 'for-next/entry' into for-next/core 
* for-next/entry:
  arm/syscalls: mark syscall invocation as likely in invoke_syscall
  arm64: entry: Switch to generic IRQ entry
  arm64: entry: Move arm64_preempt_schedule_irq() into __exit_to_kernel_mode()
  arm64: entry: Refactor preempt_schedule_irq() check code
  entry: Add arch_irqentry_exit_need_resched() for arm64
  arm64: entry: Use preempt_count() and need_resched() helper
  arm64: entry: Rework arm64_preempt_schedule_irq()
  arm64: entry: Refactor the entry and exit for exceptions from EL1
  arm64: ptrace: Replace interrupts_enabled() with regs_irqs_disabled()
 2025-09-24 16:34:02 +01:00
Will Deacon 3d751c56c9 Merge branch 'for-next/cpufeature' into for-next/core 
* for-next/cpufeature:
  arm64: cpufeature: add Neoverse-V3AE to BBML2 allow list
  arm64: errata: Apply workarounds for Neoverse-V3AE
  arm64: cputype: Add Neoverse-V3AE definitions
  arm64: cpufeature: add AmpereOne to BBML2 allow list
  arm64: cpufeature: Add Olympus MIDR to BBML2 allow list
  arm64: cputype: Add NVIDIA Olympus definitions
  arm64: cputype: Remove duplicate Cortex-X1C definitions
  arm64: errata: Expand speculative SSBS workaround for Cortex-A720AE
  arm64: cputype: Add Cortex-A720AE definitions
  arm64/hwcap: Add hwcap for FEAT_LSFE
 2025-09-24 16:33:53 +01:00
Will Deacon 5647d32f51 Merge branch 'for-next/cca' into for-next/core 
* for-next/cca:
  arm64: acpi: Enable ACPI CCEL support
  arm64: Enable EFI secret area Securityfs support
  arm64: realm: ioremap: Allow mapping memory as encrypted
 2025-09-24 16:33:25 +01:00
Will Deacon 1cf89b6bf6 arm64: Kconfig: Make CPU_BIG_ENDIAN depend on BROKEN 
Big-endian arm64 configurations are vanishingly rare, yet we still claim
to support them in Linux despite very limited testing or visible
interest. Supporting big-endian adds unnecessary burden to reviewers and
contributors which, without any known active users, is hard to justify.
For example, recent work to improve our futex routines and to implement
nested virtualisation support is non-trivially complicated by having to
support both big- and little-endianness.

Back in 2019 [1], it was claimed that Huawei were using arm64 big-endian
machines in their telecommunication products but I don't know whether
that's still the case and certainly haven't seen any patch contributions
to help support or maintain it.

Make CPU_BIG_ENDIAN depend on BROKEN as an initial deprecation step
towards its removal.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/linux-arm-kernel/73701e9f-bee1-7ae8-2277-7a3576171cd4@huawei.com/ [1]
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
 2025-09-24 16:25:45 +01:00
Arnd Bergmann 2136c694a0 Merge tag 'qcom-arm64-defconfig-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/defconfig 
Qualcomm Arm64 defconfig updates for v6.18

The Qualcomm X Plus platform gained GPU support, enable the required
clock controller.
The support for Qualcomm QCS615 platform improved, enable the
multimedia-related clock controllers.

* tag 'qcom-arm64-defconfig-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: defconfig: Enable X1P42100 GPUCC driver
  arm64: defconfig: Enable QCS615 clock controllers

Link: https://lore.kernel.org/r/20250921020612.596098-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:55:05 +02:00
Arnd Bergmann 0d4495122a Merge tag 'cix-dt-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix into soc/dt 
CIX device tree changes for v6.18-rc1:
- arm64: dts: cix: add DT nodes for all I2C and I3C ports for sky1

* tag 'cix-dt-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/cix:
  arm64: dts: cix: add DT nodes for all I2C and I3C ports for sky1

Link: https://lore.kernel.org/r/aNIyhPSV6lJaZIvR@nchen-desktop
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:49:42 +02:00
Arnd Bergmann a08be517c4 Merge tag 'sunxi-dt-for-6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into soc/dt 
Allwinner Device Tree changes for 6.18 - part 2

A new board, the Amediatech X96Q, was added.

* tag 'sunxi-dt-for-6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  arm64: dts: allwinner: h313: Add Amediatech X96Q
  dt-bindings: arm: sunxi: Add Amediatech X96Q

Link: https://lore.kernel.org/r/aNFg7iuBtyWkCZg6@wens.tw
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:48:23 +02:00
Arnd Bergmann d1f862c0b9 Merge tag 'v6.18-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt 
One new board the ROC-RK3588-RT, gpu improvements for RK3328, frequency
scaling for the RK3528 and the very first small steps for camera
support on the RK3588 - with the CSI-DPHY support, with more hopefully
to come soon'ish :-) .

And apart from those bigger points, some more individual peripheral work
on some boards.

* tag 'v6.18-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: Add devicetree for the ROC-RK3588-RT
  dt-bindings: arm: rockchip: Add Firefly ROC-RK3588-RT
  arm64: dts: rockchip: update pinctrl names for Radxa E52C
  arm64: dts: rockchip: remove vcc_3v3_pmu regulator for Radxa E52C
  arm64: dts: rockchip: Add USB and charger to Gameforce Ace
  arm64: dts: rockchip: enable the Mali GPU on RK3328 boards
  arm64: dts: rockchip: add GPU powerdomain, opps, and cooling to rk3328
  arm64: dts: rockchip: Fix network on rk3576 evb1 board
  arm64: dts: rockchip: add mipi csi-2 dphy nodes to rk3588
  dt-bindings: soc: rockchip: add rk3588 csidphy grf syscon
  arm64: dts: rockchip: Add rk3528 CPU frequency scaling support
  arm64: dts: rockchip: enable HDMI Receiver on NanoPC T6

Link: https://lore.kernel.org/r/2079092.kXSN5OTJKJ@diego
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:47:31 +02:00
Arnd Bergmann 5ab67bad49 Merge tag 'qcom-arm64-for-6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt 
More Qualocmm Arm64 DeviceTree updates for v6.18

Introduce the Hamoa IoT SOM and the Hamoa EVK board, the HP Omnibook
X14, the Particle Tachyon board, and the Samsung Galaxy S22.

On IPQ5018 another set of UART and I2C controllers are added.

On Lemans SDHCI and the camera subsystem is introduced, the USB
controllers are updated to the new flattened binding.
The Lemans EVK gains Ethernet definition, more QUP controllers and their
GPI DMA engines are defined. PCIe, SDHCI, remoteproc and iris video
accelerator are added as well.

On the Monaco platform GPU and GMU are introduced, the USB controller
nodes are updated to the new flattened binding. The GPU is enabled on
the EVK and the Ride boards.

SDCC and MDSS resets are defined on MSM8916, MSM8939 also gets the MDSS
reset.

On QCM2290 the camera clock interface is added.

On the QCS615 tsens and related thermal-zones are introduced.

On SDM845 the OnePlus 6 gains notifications LED, and the sensor core
(SLPI) is enabled on the Samsung Galaxy S9.

WiFi and Bluetooth is enabled on the SM8750 MTP.

The IRIS video accelerator is introduce for X Elite and enabled on a
variety of laptops.

DisplayPort controllers on a variety of boards are updated to describe
additional pixel clocks, used for MST.

* tag 'qcom-arm64-for-6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (57 commits)
  arm64: dts: qcom: Add MST pixel streams for displayport
  arm64: dts: qcom: sm6350: correct DP compatibility strings
  arm64: dts: qcom: monaco-evk: Enable Adreno 623 GPU
  arm64: dts: qcom: qcs8300-ride: Enable Adreno 623 GPU
  arm64: dts: qcom: qcs8300: Add gpu and gmu nodes
  dt-bindings: arm: qcom: sort sm8450 boards
  arm64: dts: qcom: Add base HAMOA-IOT-EVK board
  arm64: dts: qcom: Add HAMOA-IOT-SOM platform
  dt-bindings: arm: qcom: Document HAMOA-IOT-EVK board
  arm64: dts: qcom: sm8750-mtp: Add WiFi and Bluetooth
  arm64: dts: qcom: msm8953-xiaomi-daisy: fix cd-gpios
  arm64: dts: qcom: ipq5018: add QUP1 UART2 node
  arm64: dts: qcom: lemans: Flatten usb controller nodes
  arm64: dts: qcom: qcs615: Enable TSENS support for QCS615 SoC
  arm64: dts: qcom: sdm845-enchilada: Add notification LED
  arm64: dts: qcom: apq8016-sbc: Drop redundant HDMI bridge status
  arm64: dts: qcom: apq8016-sbc: Correct HDMI bridge #sound-dai-cells
  arm64: dts: qcom: lemans: Add PCIe lane equalization preset properties
  arm64: dts: qcom: sm8450: enable camera clock controller by default
  arm64: dts: qcom: qcm2290: Add CCI node
  ...

Link: https://lore.kernel.org/r/20250921022346.598294-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:46:02 +02:00
Arnd Bergmann 8de446fd49 Merge tag 'apple-soc-dt-6.18-part2' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux into soc/dt 
Apple SoC DTS updates for 6.18, part 2

- New device trees for all M2 Pro, Max and Ultra models are added.
  This is responsible for most of the changed lines since we already
  need 2000+ lines just to describe all the power domains inside
  t602x-pmgr.dtsi for these SoCs.
- Missing WiFi properties for t600x are added.
- Bluetooth nodes are added for all t600x machines.
- The PCIe ethernet iommu-map was fixed for the Apple M1 iMac
  to account for a disabled PCIe port.
- SPMI, NVMe, SART and mailbox nodes for Apple's T2 and A11.

* tag 'apple-soc-dt-6.18-part2' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux:
  arm64: dts: apple: t8015: Add SPMI node
  arm64: dts: apple: t8012: Add SPMI node
  arm64: dts: apple: Add J180d (Mac Pro, M2 Ultra, 2023) device tree
  arm64: dts: apple: Add J474s, J475c and J475d device trees
  arm64: dts: apple: Add J414 and J416 Macbook Pro device trees
  arm64: dts: apple: Add initial t6020/t6021/t6022 DTs
  arm64: dts: apple: Add ethernet0 alias for J375 template
  dt-bindings: arm: apple: Add t6020x compatibles
  arm64: dts: apple: t8015: Add NVMe nodes
  arm64: dts: apple: t8015: Fix PCIE power domains dependencies
  arm64: dts: apple: Add devicetreee for t8112-j415
  dt-bindings: arm: apple: Add t8112 j415 compatible
  arm64: dts: apple: t600x: Add bluetooth device nodes
  arm64: dts: apple: t600x: Add missing WiFi properties
  arm64: dts: apple: t8103-j457: Fix PCIe ethernet iommu-map

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:44:22 +02:00
Rob Herring (Arm) 345518c00b arm64: dts: apm-shadowcat: Drop "apm,xgene2-pcie" compatible 
The "apm,xgene2-pcie" compatible is unused, undocumented, and in the
wrong position in the compatible list. Given this is a mature and little
used platform, just remove the compatible rather than fix the order and
document it.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250919161529.1293151-1-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2025-09-23 22:39:18 +02:00