Changes in cpucaps

67f8bc848ee31831336bd478e57d2f993551902e - Merge drm/drm-fixes into drm-misc-fixes

Tue, 01 Sep 2026 09:38:51 +0200

Merge drm/drm-fixes into drm-misc-fixesLet's start the 7.3 drm-misc-fixes cycle.Signed-off-by: Maxime Ripard List of files: /linux/arch/arm64/tools/cpucaps

b2128290c29902315e632ea59e0504d6bc9e9b42 - Merge remote-tracking branch 'drm/drm-next' into msm-next-backmerge

Sat, 18 Jul 2026 17:06:55 +0200

Merge remote-tracking branch 'drm/drm-next' into msm-next-backmergeBackmerge of drm-next, mainly to pick up dt bindings docs updates toavoid conflicts.Signed-off-by: Rob Clark List of files: /linux/arch/arm64/tools/cpucaps

7bb6284aa7b3c369b41e7f33fcbe193161f008e7 - Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Tue, 25 Aug 2026 20:48:04 +0200

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmPull kvm updates from Paolo Bonzini: "ARM64: - Add support for 'slot' based PMU events, paired with new UAPI that compels the user to select a specific PMU implementation - Lazy save/restore of vCPU state for pKVM, along with various fixes and cleanups to the management of vCPU state between the untrusted host and pKVM hypervisor - Disable traps of EL1 registers for nested hypervisors when FEAT_NV2p1 is present, guaranteeing that EL2-specific register bits are stateful in the EL1 counterpart - Leverage FEAT_NV3 to avoid unnecessary ERET/TLBI traps when the scope of those instructions remains 'in host' (i.e. L1 kernel/userspace) - Pile of fixes for the management of the VNCR pseudo-TLB, such as under-invalidations and races with concurrent TLBIs on other vCPUs - Consolidate the non-protected and pKVM view of ICH_VTR_EL2 to a runtime-patched constant, allowing the same data to be shared with pKVM prior to dropping host privileges - Considerable pile of LLM-assisted fixes around the shop but mostly in the VGIC, our in-kernel generator of bugs (and sometimes interrupts) LoongArch: - Advertise already-supported capabilities - Some bug fixes about timer and MMIO - Some hardening about interrupt injection - Replace kvm_err() with kvm_pr_unimpl() - Add FPU/LSX/LASX test cases for selftests RISC-V: - Svadu/Zicfiss/Zicfilp FWFT support for Guest - Use try_cmpxchg for IMSIC MRIF RMW - More arch-specific tracepoints in KVM RISC-V - Eager page splitting when enabling dirty logging - Optimize hfence request handling for SMP Guests - Improve dirty log clearing by skipping zero bits in mask - Guard HFENCE range loops against overflow - CPU PM notifiers in KVM RISC-V for non-retentive idle states - Fix kernel-mode vector context save/restore for Guest s390: - Fixes for vfio-ap - Fixes for the gmap rework - Fixes for vsie - AI triggered fixes all over - diag9c tracing - code move preparation for the additional arm64 support - enable CONTEXT_ANALYSIS x86: - Perform spring cleaning on x86.{c,h} and asm/kvm_host.h, by adding regs.c (the kvm_cache_regs.h => regs.h is already applied) and msrs.{c,h}, and moving relevant code out of x86.c - Split kvm_mmu in three parts, respectively to describe the format of page tables, walking the guest page tables and building the page tables. Always use the same page table walker kvm->arch.gva_walk as the entry point to convert a guest's virtual address, where the previous code used two different kvm_mmu structs depending on whether the walk included nested EPT/NPT or not. Make page fault vmexits reuse the permission checking machinery that is used for guest page faults. This is both a cleanup and a baby step towards supporting XS/XU memory permissions - Document some of the "fun" gotchas with the APIC base when creating IRQCHIPs on x86 - Remove a defunct masterclock update from kvm_xen_shared_info_init(). It could result in incorrect kvmclock due to triggering an unnecessary switch to/from masterclock mode - Skip Xen runstate time updates if time has effectively gone backwards, so that the guest doesn't report 100% steal time for a very, very long time - Drop KVM's runtime updates of the Xen PV timing CPUID leaf, as KVM was updating the wrong sub-leaf, and upstream KVM will soon provide all the information needed by userspace to populate the CPUID field itself - Fix a bug where KVM would walk a newly created rmap without holding the rmap lock (or mmu_lock) during aging - Fix a bug where aging TDP MMU SPTEs could clobber FROZEN SPTEs - Fix a variety of #DB priority bugs - Fix a class of races related to enabling Hyper-V emulation on a vCPU after the vCPU is visible to the rest of KVM - Use static calls for nested virtualization ops - Move more KVM-internal code out of x86's kvm_host.h - Enumerate support for a variety of Zhaoxin instructions that don't require explicit virtualization - Fix missing EFER validation bugs, including in the KVM_SET_SREGS* path - Harden kvm_vcpu_map() against double-mapping and thus leaking references - Misc fixes and cleanups, e.g. for largely benign syzkaller splats x86 (Intel): - Zero a vCPU's entry in VMX's Posted Interrupt Descriptor table used for IPI virtualization when the vCPU is freed, to fix a use-after-free where hardware will write to a freed vCPU's PID - Service local TLB flushes on a failed nested VM-Enter to fix a bug where KVM could miss a TLB on a future, successful VM-Enter with the same L2 VPID - Cap the maximum value shoved into the VMX Preemption Timer to workaround an erratum that affects all existing Intel CPUs that support CPUID 0x15 - Fix VPID virtualization bugs where KVM would fail to flush hardware TLBs - Harden the TDX "populate" ioctls against bad input, and to prepare for supporting in-place private<=>shared conversion x86 (AMD): - Forcefully invalidate SNP VMSA pages if their backing guest_memfd page is zapped/invalidated, e.g. due to a PUNCH_HOLE in response to a Page-State Change request - Remove a dying VM from the GA Log notifier list before the VM is actually destroyed, to fix a potential use-after-free - While FOLL_WRITE was needed in the past to trigger CoW unsharing, nowadays FOLL_LONGTERM does that already even without FOLL_WRITE, and in fact, get_user_pages() actually disallows FOLL_WRITE together with FOLL_LONGTERM. So don't pass FOLL_WRITE when registering encrypted memory regions, i.e. when pinning SEV/SEV-ES guest memory, to fix a regression with file-backed memory introduced by KVM's (correct) usage of long-term pins (This was reviewed by mm maintainers; for more information, see commit ee1a586dd1fa "KVM: SEV: Drop FOLL_WRITE for encrypted region registration") - Allocate full pages for SEV/SEV-ES {DE,EN}CRYPT ops on SNP-enabled hosts to fix a data corruption issue due to the PSP driver assigning to-be-written pages to firmware (as required by the SNP specs) - Unconditionally intercept ICBEP so that KVM generates the correct guest RIP when handling an ICEBP-induced TASK_SWITCH #VMEXIT - Harden the SNP "populate" ioctls against bad input, and to prepare for supporting in-place private<=>shared conversion Generic: - Remove kvm_debugfs_dir if kvm_init() fails after creating KVM's debugfs - Add a per-VM bitmap to track which vCPU IDs have been "claimed" but for which the vCPU isn't yet online, and use the bitmap to reject duplicate IDs before calling into arch code. This allows arch code to consume vcpu_id without having to worry about cross-vCPU clobbering (at least s390 and x86 have had related bugs) - Rework the so called "prepare" and "invalidate" guest_memfd hooks to prepare for in-place private<=>shared conversion, and clean up a few warts along the way Selftests: - Automatically allocate a full page for L2 guest stacks on x86 instead of requiring test-specific L1 guest code to carve out a portion of the L1 stack for L2 usage, and to ensure the L2 stack also adheres to the x86-64 calling convention ABI - Add a selftest to verify {Guest,Host}-Only behavior in x86's mediated PMU - Clean up nested SVM's handling of GPRs on L2<=>L1 transitions, reuse the functionality for nested VMX, and drop the ucall hack that was fudging around the lack of GPR switching on nVMX - Add a stress test to verify KVM doesn't clobber/drop #PF state, e.g. CR2, across save/restore, including when L2 is active - Add a test to verify KVM_CREATE_VM accepts exactly what is reported by KVM_CAP_VM_TYPES - Misc selftests fixes and cleanups - Fix several issues with seeding the pRNG, and rework the pRNG APIs to that the pRNG can be sanely used in host code, not just guest code - Add an IRQ test to validate virtual IRQ deliverty for IRQs wired up via KVM_IRQFD + KVM_SET_GSI_ROUTING, with optional support for triggering IRQs via writes to an assigned VFIO device - Add syscall wrappers to assert success on a variety of pthreads and CPU affinity APIs - Set vCPU pthread affinity as early as possible to reduce contention issues that were surfaced by PREEMPT_LAZY, which result in runtimes of over a minute on large hosts, versus the expected ~5 seconds - Rework the PMU counters test to run each testcase using a single VM with many vCPUs for each sub-testcase, instead of using a unique VM for each sub-testcase. This cuts the runtime by ~20x Miscellaneous: - MAINTAINERS updates for vfio-ap, guest_memfd, kvm-x86. Mostly representing the status quo more accurately, but also... welcome David Hildenbrand as guest_memfd reviewer!"* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (413 commits) KVM: arm64: Validate GICv5 timer PPIs before claiming ownership KVM: arm64: vgic: Reject out-of-range GICv5 PPI IDs KVM: arm64: vgic: Prevent speculative SPI array underflow KVM: arm64: vgic: Free gic_kvm_info on initialization failure KVM: arm64: Avoid mismatched accesses to 'struct kvm_nvhe_init_params' s390/vfio-ap: Fix NULL deref in status_show() during queue probe s390/vfio-ap: Fix hot-unplug skipped when last AP adapter or domain removed s390/vfio-ap: fix potential use of uninitialized apm_filtered bitmap s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove s390/vfio-ap: Fix required lock not held during update of ap_matrix_mdev object s390/vfio-ap: Fix missing lock required to access list of ap_matrix_mdev objects s390/vfio-ap: Fix dereference matrix_mdev->kvm without checking for NULL s390/vfio-ap: Fix stale do_remove flag across iterations in vfio_ap_mdev_cfg_remove RISC-V: KVM: fix vcpu vector context handling for kernel-mode vector riscv: vector: allow non-preemptible kernel-mode vector with IRQs off riscv: vector: refactor riscv_v_start_kernel_context KVM: s390: gmap: Make prefix handling optional KVM: s390: gmap: Make CMMA optional KVM: s390: gmap: Make storage keys optional KVM: s390: Prepare gmap for a second KVM implementation ... List of files: /linux/arch/arm64/tools/cpucaps

76671054f9a1ff6abb976583cd8da37650acdc97 - Merge tag 'kvmarm-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

Mon, 24 Aug 2026 18:42:07 +0200

Merge tag 'kvmarm-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEADKVM/arm64 changes for 7.3 - Add support for 'slot' based PMU events, paired with new UAPI that compels the user to select a specific PMU implementation - Lazy save/restore of vCPU state for pKVM, along with various fixes and cleanups to the management of vCPU state between the untrusted host and pKVM hypervisor - Disable traps of EL1 registers for nested hypervisors when FEAT_NV2p1 is present, guaranteeing that EL2-specific register bits are stateful in the EL1 counterpart - Leverage FEAT_NV3 to avoid unnecessary ERET/TLBI traps when the scope of those instructions remains 'in host' (i.e. L1 kernel/userspace) - Pile of fixes for the management of the VNCR pseudo-TLB, such as under-invalidations and races with concurrent TLBIs on other vCPUs - Consolidate the non-protected and pKVM view of ICH_VTR_EL2 to a runtime-patched constant, allowing the same data to be shared with pKVM prior to dropping host privileges - Considerable pile of LLM-assisted fixes around the shop but mostly in the VGIC, our in-kernel generator of bugs (and sometimes interrupts) List of files: /linux/arch/arm64/tools/cpucaps

2791de535400bc40fd837baa756117434df7895d - Merge branch 'kvm-arm64/vtr-patch' into next

Wed, 19 Aug 2026 23:05:49 +0200

Merge branch 'kvm-arm64/vtr-patch' into next* kvm-arm64/vtr-patch: : Inline patching of ICH_VTR_EL2 constant, courtesy of Marc Zyngier : : Unify readers of ICH_VTR_EL2 on an instruction-patched constant value, : avoiding system register accesses known to trap under nested : virtualization and sharing the implementation between pKVM and 'regular' : KVM. KVM: arm64: vgic-v3: Kill kvm_vgic_global_state.ich_vtr_el2 KVM: arm64: vgic-v3: Simplify initial GICv3 configuration sampling KVM: arm64: Convert most ICH_VTR_EL2 accesses to inlined literal value KVM: arm64: Add a helper providing an inlined literal value for ICH_VTR_EL2 KVM: arm64: Move GICv3 broken SEIS implementation detection to a CPU errrata KVM: arm64: vgic-v3: Make vtr_to_* helpers use architectural field symbolsSigned-off-by: Oliver Upton List of files: /linux/arch/arm64/tools/cpucaps

5f44f603b0daeda535b6d307cd02ef9a24b3b8c5 - Merge branch 'kvm-arm64/feat-nv3' into next

Wed, 19 Aug 2026 21:27:53 +0200

Merge branch 'kvm-arm64/feat-nv3' into next* kvm-arm64/feat-nv3: (29 commits) : Support for FEAT_NV2p1 and FEAT_NV3, courtesy of Marc Zyngier : : Couple of accelerations for nested virtualization: : : - Elide traps for EL1 alias registers when hardware guarantees that : EL2-only bits are stateful (NV2p1) : : - Use TGE-aware hardware to avoid unnecesary ERET/TLBI traps that : remain 'in-context' (i.e. L1 kernel/userspace) arm64: Add override for ID_AA64MMFR4_EL1.NV_frac KVM: arm64: selftest: Add NVHCR_EL2 to get-reg-list KVM: arm64: Expose FEAT_NV3 to guests KVM: arm64: Add FEAT_NV3 detection KVM: arm64: Engage NV3 TLBI trap elision KVM: arm64: Engage NV3 ERET trap elision KVM: arm64: Add NVHCR_EL2 context switching KVM: arm64: Add routing for NVHCR_EL2 trap KVM: arm64: Add NVHCR_EL2 handling to the sysreg array KVM: arm64: Add sanitisation for NVHCR_EL2 KVM: arm64: Make HCR_EL2 a non-VNCR register KVM: arm64: Add kvm_has_nv{2,3}() predicates KVM: arm64: Add NV3 control bits to HCRX_EL2 sanitisation KVM: arm64: Split NV-specific exit fixups from the non-NV handling arm64: Add ARM64_HAS_NV3 capability arm64: sysreg: Add HCRX_EL2 bits related to FEAT_NV3 arm64: sysreg: Add NVHCR_EL2 description as a mirror of HCR_EL2 arm64: Add FEAT_NV2p1 detection KVM: arm64: Expose FEAT_NV2p1 to NV guests KVM: arm64: Relax CNTHCTL_EL2 handling when FEAT_NV2p1 is present ...Signed-off-by: Oliver Upton List of files: /linux/arch/arm64/tools/cpucaps

637315cb400eed1dbe721954fea437a61a2d65b2 - Merge tag 'kvm-riscv-7.3-1' of https://github.com/kvm-riscv/linux into HEAD

Tue, 18 Aug 2026 13:07:31 +0200

Merge tag 'kvm-riscv-7.3-1' of https://github.com/kvm-riscv/linux into HEADKVM/riscv changes for 7.3- Svadu/Zicfiss/Zicfilp FWFT support for Guest- Use try_cmpxchg for IMSIC MRIF RMW- More arch-specific tracepoints in KVM RISC-V- Eager Page Splitting for KVM RISC-V- Optimize hfence request handling for SMP Guests- Improve dirty log clearing by skipping zero bits in mask- Guard HFENCE range loops against overflow- CPU PM notifiers in KVM RISC-V for non-retentive idle states- Fix kernel-mode vector context save/restore for Guest List of files: /linux/arch/arm64/tools/cpucaps

5be1b8de27dce70af8cd0bf7fa87f7c4c592aec2 - arm64: Add ARM64_HAS_NV3 capability

Thu, 30 Jul 2026 09:10:08 +0200

arm64: Add ARM64_HAS_NV3 capabilityAs a bunch of KVM code is going to depend on FEAT_NV3 being detectedon the host, add a new capability that will describe it.Signed-off-by: Marc Zyngier Link: https://patch.msgid.link/20260730071022.296811-16-maz@kernel.orgSigned-off-by: Oliver Upton List of files: /linux/arch/arm64/tools/cpucaps

0dbb49dcdbbe9ea1546a80548b95e5199328b181 - arm64: Add ARM64_HAS_NV2P1 capability

Thu, 30 Jul 2026 09:10:01 +0200

arm64: Add ARM64_HAS_NV2P1 capabilityAs we're about to deal with FEAT_NV2P1, add a new capability thatwill be used to key any support for it.Signed-off-by: Marc Zyngier Link: https://patch.msgid.link/20260730071022.296811-9-maz@kernel.orgSigned-off-by: Oliver Upton List of files: /linux/arch/arm64/tools/cpucaps

27a263e1a0fa23374066696aa7732a01bfde7a4e - KVM: arm64: Move GICv3 broken SEIS implementation detection to a CPU errrata

Tue, 21 Jul 2026 19:07:50 +0200

KVM: arm64: Move GICv3 broken SEIS implementation detection to a CPU errrataUsing is_midr_in_range_list() in a noinstr function isn't a good idea.And yet kvm_compute_ich_hcr_trap_bits() is doing that by callingvgic_v3_broken_seis().Move all the broken SEIS detection logic to the errata detectionframework, and use a new ARM64_WORKAROUND_GICv3_BROKEN_SEIS capto indicate that we're running on broken CPUs.This reuses the MIDR list used for IMPDEF PMU detection, whichhas a 100% overlap with the SEIS stuff...Signed-off-by: Marc Zyngier Link: https://patch.msgid.link/20260721170754.3150521-3-maz@kernel.orgSigned-off-by: Oliver Upton List of files: /linux/arch/arm64/tools/cpucaps

efe86f088f48f18c27b648e5724048947f3b7fb4 - Merge drm/drm-next into drm-xe-next

Tue, 14 Jul 2026 15:40:31 +0200

Merge drm/drm-next into drm-xe-nextSync some i915/display changesSigned-off-by: Rodrigo Vivi List of files: /linux/arch/arm64/tools/cpucaps

6d177908bad5992e17669030db41caab88041d5e - Merge drm/drm-next into drm-intel-next

Tue, 30 Jun 2026 14:55:43 +0200

Merge drm/drm-next into drm-intel-nextSync with v7.2-rc1.Signed-off-by: Jani Nikula List of files: /linux/arch/arm64/tools/cpucaps

827b9aabd3ea3e96d5e48abed9f44dbd1e550d4e - Merge drm/drm-next into drm-misc-next

Tue, 30 Jun 2026 10:16:00 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to get drm-misc-next to v7.2-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/arch/arm64/tools/cpucaps

7dd19adaaac9a161723a24de7c270861063ec6ac - Merge tag 'v7.2-rc1' into drm-rust-next

Sun, 28 Jun 2026 22:39:43 +0200

Merge tag 'v7.2-rc1' into drm-rust-nextMerge v7.2-rc1 into drm-rust-next to start the next cycle.Devres now requires T: 'static, which conflicts with shmem::Object usingDevres> without that bound. Resolve by adding 'staticas a supertrait to DriverObject and DeviceContext, which does notrestrict any current use cases since DriverObject is always implementedon owned, refcounted types and DeviceContext is a sealed marker traitwith only unit-type implementors.If DriverObject (or DeviceContext) ever becomes lifetime-parameterized(e.g. via a GAT for TTM backed objects), the 'static supertrait can berelaxed at that point.Signed-off-by: Danilo Krummrich List of files: /linux/arch/arm64/tools/cpucaps

0eaed89c18aeedf0898baf2dbf5ff027c6795152 - Merge tag 'timers-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource

Mon, 17 Aug 2026 10:29:52 +0200

Merge tag 'timers-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource - Use designated initializers for sh_mtu2, sh_cmt, and sh_tmu, and drop the unused initializer in the platform_device_id table for sh_mtu2 (Uwe Kleine-König) - Remove redundant dev_err()/dev_err_probe() messages when devm_request_*_irq() fails, as the helper already logs an error message (Pan Chuang) - Fix a boot hang on Allwinner D1 when a forced minimum delta is used with the sun4i timer (Felix Yan) - Fix an IRQ leak in the cpuhp_setup_state() error path by freeing the IRQ on failure in the NXP PIT driver (WenTao Liang) - Fix incorrect unmapping of shared MMIO between the clocksource and clockevent drivers. If one of them fails to initialize, the error path unmaps the shared MMIO region, leaving the other driver with an invalid mapping on clps711x (Guangshuo Li) - Make the samsung_pwm driver compatible with PREEMPT_RT by replacing regular spinlocks with raw_spinlock_t in atomic contexts (Marek Szyprowski) - Use __raw_readl() and __raw_writel() instead of ioread32() and iowrite32() to support SWAP_IO_SPACE in the rtl-otto driver (Rustam Adilov) - Fix a missing clk_disable_unprepare() call in the timer initialization error path of the Armada driver (Yuho Choi)Link: https://lore.kernel.org/lkml/75feea31-683d-45a1-87f4-ab045e0152ae@oss.qualcomm.com List of files: /linux/arch/arm64/tools/cpucaps

b4d85f863e5a6f1fa01b186001af0f68f4f5239e - Merge branch 'next' into for-linus

Sat, 15 Aug 2026 06:26:07 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.3 merge window. List of files: /linux/arch/arm64/tools/cpucaps

76904fccf81936c084faebc73ac72c0919a42941 - Merge tag 'v7.2-rc3' into next

Tue, 14 Jul 2026 04:06:00 +0200

Merge tag 'v7.2-rc3' into nextSync up with mainline to pull in stable fixes to avoid merge conflicts. List of files: /linux/arch/arm64/tools/cpucaps

85cdaca6970028bf6f544c355c90035586836ddf - Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Tue, 18 Aug 2026 20:57:17 +0200

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxPull arm64 updates from Will Deacon: "There's a reasonable amount of stuff here, including a bunch of updates to the perf PMU drivers and some MPAM updates to expose the memory bandwidth counters via resctrl. On the architecture side, some highlights include support for BBML3 and steps towards support for an architectural NMI solution, all wrapped up in a web of fixes for latent issues identified by Sashiko. ACPI: - Combine reads of AMU counters into a single FFH feedback counter op Confidential computing: - Fix smp_processor_id() in preemptible context when retrieving an attestation token inside a realm - Convert pKVM over to a "CC platform" - Clean-up our SWIOTLB configuration in preparation for reworking the handling of encrypted/decryped DMA buffers in the dma-mapping tree CPU errata handling: - Work around broken device memory ordering on NVIDIA Olympus cores - Fix broken 'nospectre_bhb' command-line option - Select the idle loop backend instruction on the command-line CPU features: - Replace our BBML2-noabort feature with the new architectural BBML3 feature - Disable in-kernel BTI for recent versions of Clang due to issues with livepatch that are still being investigated - Clean-up documentation describing which ID register fields are exposed to userspace Interrupts: - Preliminary work towards supporting FEAT_NMI, which cleans up our IRQ entry code and fixes some latent issues with pseudo-NMI - Support for an SDEI backend to trigger an NMI backtrace Memory management: - Treat all devices as coherent when CLIDR_EL1.LoC == 0 - Fix no-map handling of sub-page-sized regions - Second attempt at unmapping the linear aliases of the kernel data and bss sections - Fix EFI runtime calls when software-PAN is enabled Miscellaneous: - Add Mark Rutland as a reviewer! - Tidy-up our futex cmpxchg logic when using the new LSUI instructions - Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when selecting HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS - Fix a false-positive KCSCAN splat in the delay loop - Use a portable typedef for 128-bit scalar types in our UAPI headers - Non-critical fixes for Sashiko reports all over MPAM: - Hook MPAM memory bandwidth counters into resctrl's counter assignment interface - Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that it also applies to 63 bit counters Perf: - Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and CPU PMU (NVIDIA Olympus again!) - Add support for the DDR PMU on Marvell CN20K SoCs - Add support for Picoheart implementations of the DCW PCIe PMU - Add support for Channel/Rank/Bank filtering in the CXL PMU driver - Add support for 64-bit counters in the CSPMU device - Add support for revision 2 of the CMN S3 PMU Ptrace: - Fix a decade-old bug in our handling of seccomp and tracing on syscall entry - Fix regset handling for inactive SVE and SSVE registers Selftests - Add some tests for the decade-old bug that we just tried to fix in our syscall entry path - Fix SVE test crash on SME-only CPUs"* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (95 commits) arm64/efi: Avoid voluntary preemption with efi_mm installed arm64: bti: Disable in-kernel BTI with recent versions of Clang arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs arm64: Disable KCSAN instrumentation in delay.o arm_mpam: Disable driver unbind to avoid UAF arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt perf: arm_pmuv3: Zero initialize hw_id branch stack field arm64: mm: Unmap kernel data/bss entirely from the linear map iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature perf/arm-cmn: Support CMN S3 r2 perf/arm-cmn: Plumb in new filter types perf/arm-cmn: Refactor event filter data perf/arm-cmn: Refactor event filter programming perf/arm-cmn: Rename filter variables for clarity arm64: mm: fix accidental linear mapping of no-map reserved memory tools: Ensure tools copy of linux/filter.h exports the UAPI kselftest/arm64: Fix abi test compilation errors arch: arm64: add early_param idle= arm64: entry: mask DAIF before returning from C EL1 handlers ... List of files: /linux/arch/arm64/tools/cpucaps

ba3349fc55d2f5de1751a03bd8ccff21b58e8953 - Merge branch 'for-next/errata' into for-next/core

Fri, 14 Aug 2026 12:16:08 +0200

Merge branch 'for-next/errata' into for-next/core* for-next/errata: arch: arm64: add early_param idle= arm64: proton-pack: Restore the nospectre_bhb command-line option arm64: errata: work around NVIDIA Olympus device store/load ordering arm64: Clarify ARM64_WORKAROUND_REPEAT_TLBI semantics List of files: /linux/arch/arm64/tools/cpucaps

dc61684f5c7c809e47a1b2a2d7c2148d1cb22fff - Merge branch 'for-next/cpufeature' into for-next/core

Fri, 14 Aug 2026 12:16:07 +0200

Merge branch 'for-next/cpufeature' into for-next/core* for-next/cpufeature: arm64: bti: Disable in-kernel BTI with recent versions of Clang iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature arm64: cpufeature: Detect BBML3 based on ID_AA64MMFR2_EL1.BBM arm64: cpufeature: Rename BBML2_NOABORT as BBML3 arm64: sysreg: Add BBM_3 arm64: cpufeature: Extend bbml2_noabort support list arm64: cputype: Add C1-Nano definitions arm64: cputype: Add Cortex-A520AE definitions arm64: cpucaps: Remove stale comment about keeping capabilities sorted arm64: fix cpu-feature-registers Malformed table arm64: Remove hidden bitfields from cpu-feature-registers.rst arm64: Sort registers in cpu-feature-registers.rst arm64: Document missing bitfields in cpu-feature-registers.rst arm64: Don't number registers in cpu-feature-registers.rst List of files: /linux/arch/arm64/tools/cpucaps