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# Conflicts:
# drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
# net/ceph/osd_client.c
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https://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
# Conflicts:
# drivers/thunderbolt/tb.c
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# Conflicts:
# arch/arm64/kvm/mmu.c
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https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git
# Conflicts:
# arch/arm64/include/asm/ptrace.h
# arch/arm64/include/asm/sysreg.h
# arch/arm64/kvm/hyp/nvhe/hyp-main.c
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https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
# Conflicts:
# Documentation/scheduler/index.rst
# arch/arm64/configs/defconfig
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt.git
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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
# Conflicts:
# mm/internal.h
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https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git
# Conflicts:
# drivers/cpufreq/cppc_cpufreq.c
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https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
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# Conflicts:
# fs/coredump.c
# fs/f2fs/f2fs.h
# fs/fuse/dax.c
# fs/xfs/libxfs/xfs_btree.c
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https://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git
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https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
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https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu.git
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https://git.kernel.org/pub/scm/linux/kernel/git/frank.li/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/bmc/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
# Conflicts:
# include/linux/mod_devicetable.h
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https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
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https://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux.git
# Conflicts:
# init/Kconfig
# scripts/remove-stale-files
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https://git.kernel.org/pub/scm/linux/kernel/git/mm/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
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mm-unstable into for-next
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
# Conflicts:
# mm/sparse-vmemmap.c
# Conflict resolution:
#
# diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
# index 11543f4b6304..5d7e982f94d0 100644
# --- a/mm/sparse-vmemmap.c
# +++ b/mm/sparse-vmemmap.c
# @@ -36,11 +36,7 @@
# #include "mm_init.h"
# #include "sparse.h"
#
# -<<<<<<< HEAD
# -void * __meminit vmemmap_alloc_block(unsigned long size, int node)
# -=======
# void __ref *vmemmap_alloc_block(unsigned long size, int node)
# ->>>>>>> akpm/mm-unstable
# {
# /* If the main allocator is up use that, fallback to bootmem. */
# if (slab_is_available()) {
# @@ -60,11 +56,7 @@ void __ref *vmemmap_alloc_block(unsigned long size, int node)
# }
# return NULL;
# } else
# -<<<<<<< HEAD
# return memmap_alloc(size, size, __pa(MAX_DMA_ADDRESS), node);
# -=======
# - return memmap_alloc(size, size, __pa(MAX_DMA_ADDRESS), node, false);
# ->>>>>>> akpm/mm-unstable
# }
#
# static void * __meminit altmap_alloc_block_buf(unsigned long size,
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# New commits in sched/core:
4a3b51aab6e2 ("smpboot: Don't park the thread if work is pending")
40dcc9bdbef3 ("irq_work: Flush lazy work CPU down on PREEMPT_RT")
791b1760accd ("irq_work: Update a comment regarding CPU hotplug invocation")
648d44bda731 ("sched/topology: Add asymmetric SMT packing override")
c8fc4136fd3c ("sched/fair: Honor asymmetric SMT priority in idle selection")
53bc5c556b82 ("sched: Set TIF_NEED_RESCHED before calling __trace_set_need_resched()")
4b1f75be23c4 ("sched/core: Fix context analysis errors in non-preferred CPU push")
1fb28c664a19 ("virt/steal_governor: Enable the driver")
27d47ebce4d6 ("virt/steal_governor: Implement steal_governor policy loop")
4b9302d494ff ("virt/steal_governor: Add control knobs for handling steal values")
9a8e740ee9f6 ("virt: Introduce steal governor driver")
68957caaa9c0 ("sched/debug: Add migration stats due to non preferred CPUs")
74699f56ebcf ("sched/core: Push current task from non preferred CPU")
4ee29b029058 ("sched/fair: Load balance only among preferred CPUs")
d8a3da0de843 ("sched/core: Try to use a preferred CPU in is_cpu_allowed")
620824516557 ("sysfs: Add preferred CPU file")
518b32bd5bb3 ("cpumask: Introduce cpu_preferred_mask")
06a49ef784ac ("sched/docs: Document cpu_preferred_mask and Preferred CPU concept")
cfb463b7172d ("cpumask: Introduce cpumask_intersects_and")
a8d0854a76a8 ("sched/cputime: Add kcpustat_field_total helper")
be100c77178e ("sched: Add sched_ext hooks for proxy execution")
57c75e3ae38c ("sched: Add helper to block retained proxy donors")
a49653d0abeb ("sched/core: Mark wakeups completed through ttwu_runnable()")
8f8c0417e973 ("sched/core: Dequeue waking proxy donors before reset")
313b652837d0 ("sched/core: Drop mutex locks before proxy rescheduling")
627ea30aca3b ("sched/wait: Clarify WF_SYNC wakeup semantics")
d2e010082757 ("sched/eevdf: Handle more short slice waking cases")
4bf32ec3327d ("sched/eevdf: Align update_protect_slice to set_protect_slice")
aae2a33ea662 ("sched/eevdf: Ensure that vprot will never go above a min slice")
c9ce69fc43bd ("sched/fair: Randomize equally shallow slow-path candidates")
abe440b3770f ("sched/fair: Drop idle recency from slow-path CPU selection")
fbbc63fed0b0 ("sched/core: Remove redundant core_sched_seq")
819224e506bc ("sched/fair: Remove dead code on enqueue_task_fair()")
c72945693b90 ("sched: Restart fair hrtick after same-task repicks")
a9b3c7570564 ("sched/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in the <uapi/linux/sched.h> header")
e81ee0630837 ("sched/fair: Reset NUMA fault locality after scan period update")
ef9293b3b797 ("sched: dynamic: Fix preemption model strings")
879eaa76e608 ("sched: Remove unneeded function type cast in do_balance_callbacks()")
f549101187c8 ("sched/deadline: check start_dl_timer expiry with ktime_before()")
2a672daa4b27 ("sched/feat: Use the new static key API for sched_feat")
a5576ebce920 ("sched: Convert paravirt_steal to new static key APIs")
9650ce11f2e3 ("sched: dynamic: Simplify preempt model accessors")
5b9a28eeed37 ("sched: dynamic: Remove HAVE_PREEMPT_DYNAMIC_{CALL,KEY}")
aa4178f63847 ("sched: dynamic: Simplify irqentry_exit_cond_resched()")
b9d267b9d632 ("sched: dynamic: Simplify preempt_schedule{,_notrace}()")
88e0b3bb9930 ("sched: dynamic: Simplify {cond,might}_resched()")
d3d16750693b ("sched: dynamic: Make PREEMPT_DYNAMIC depend on ARCH_HAS_PREEMPT_LAZY")
772d9ffbfd26 ("sched: Migrate whole chain in proxy_migrate_task()")
6b73a09e943f ("sched: Break out core of attach_tasks() helper into sched.h")
1f8805138593 ("sched: Switch rq->next_class in proxy_reset_donor()")
09351db90a28 ("sched/core: Don't proxy-exec unmatched cookie lock owners")
9be817f991e2 ("sched/core: Avoid migrating blocked_on tasks")
3dd95f077371 ("sched/core: Don't steal a proxy-exec donor")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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# New commits in irq/drivers:
0c65a1331928 ("irqchip/gic-v3: Add Altera SoCFPGA Agilex5 GIC600 DMA32 erratum workaround")
135d9e67f7ab ("irqchip/gic-v3-its: Don't WARN on LPI free allocation failure")
c6d93e52d8c8 ("soc/fsl/qe: qe_ports_ic: Drop redundant IRQ_DOMAIN_FLAG_DESTROY_GC")
404b7900e62b ("irqchip/lan966x-oic: Drop redundant IRQ_DOMAIN_FLAG_DESTROY_GC")
0aa45dce2afe ("irqdomain: Set IRQ_DOMAIN_FLAG_DESTROY_GC in __irq_domain_instantiate()")
726285316f8f ("irqchip: Fix typos and repeated words in comments")
c23c3a1ec322 ("irqchip/pruss-intc: Use scoped lock guard and devm_mutex_init")
02a2db115989 ("irqchip/pruss-intc: Use match data directly")
13ca1c0b7d8a ("arm64: dts: qcom: purwa: Drop the Hamoa workaround for PDC")
086eac130a94 ("irqchip/qcom-pdc: Add purwa compatible for PDC secondary mode")
9d6498c113b7 ("dt-bindings: interrupt-controller: qcom,pdc: Document Purwa PDC")
94713d60707b ("irqchip/gic-v5: Install root IRQ handler last in gicv5_init_common()")
5b104000160d ("irqchip/imsic: Use IPI_MAX instead of IMSIC_NR_IPI")
a89546503a0e ("irqchip/aclint-sswi: Use IPI_MAX for IPI muxing")
f6326e26f602 ("clocksource: clint: Use IPI_MAX for IPI muxing")
2a0d49514f29 ("riscv: sbi: Use IPI_MAX for SBI IPI muxing")
1ae91dc397eb ("riscv: smp: Move enum ipi_message_type to asm/smp.h")
bd94bea7165b ("arm64: defconfig: Drop redundant Qualcomm irqchip entries")
eeb693eb3f4c ("irqchip/qcom: Add defaults for desired SoC drivers")
1b852de05f74 ("irqchip/qcom: Enable compile testing for QCOM_PDC and QCOM_MPM")
b36bfa477b77 ("irqchip/gic: Simplify Maintenance Interrupt ACPI parsing")
bd7d57a03c4b ("irqchip/riscv-imsic: Use GENMASK for base address masks")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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# New commits in perf/merge:
7606d01b963f ("x86/fpu: Remove additional remnants of math emulation")
67639ee98521 ("x86/fpu: Remove unnecessary checks for X86_FEATURE_FPU")
391cac638edd ("selftests/x86: Add tests for signal frame FPU portability")
fd14edd82077 ("x86/fpu: Pre-fault only required size of xstate buffer")
f1751b220bc8 ("x86/fpu: Fix potential underflow in xstate_calculate_size()")
731300df4f7d ("x86/fpu: Document reasoning of FX-only fallback")
6916dec7a02f ("x86/fpu: Extract restore_from_ia32_fxstate() and clean up fpu__restore_sig()")
344907fab5fd ("x86/fpu: Clean up and rename variables in signal frame handling")
3d69596c684b ("x86/fpu: Document signal frame layout and portability")
6350de8671b9 ("perf/x86/amd/uncore: Free counter slot by index")
4a8557a4e5d2 ("perf/x86/amd/uncore: Remove redundant event slot scan")
ba29babd881e ("perf/x86/intel: Check only PMC bits in PEBS_ENABLED when detecting host PEBS usage")
193ef44e3261 ("KVM: VMX: Only tell perf to enable PEBS counters for fully enabled PMCs")
57c764783330 ("KVM: VMX: Drop a redundant pmu->global_ctrl check when processing pebs_enable")
31f7cf337ce7 ("perf/x86/intel: KVM: Handle cross-mapped PEBS PMCs entirely within KVM")
a634e4536ec2 ("perf/x86: KVM: Have perf define a dedicated struct for getting guest PEBS data")
b7b84fff2bd6 ("perf/x86/intel: Invert names of intel_ctrl_{guest,host}_mask")
52a6457f59ad ("perf/x86/intel: Annotate x86_pmu::hybrid_pmu with __counted_by_ptr")
df935e26ca9a ("perf/x86/amd/uncore: Turn amd_uncore_ctx events into a flexible array")
c0a44d1745d3 ("xor: Add AVX-512 optimized xor_gen()")
2405d15e5ae4 ("xor: Remove redundant X86_FEATURE_OSXSAVE check")
b93f05df9c66 ("lib/crc: x86: Stop using cpu_has_xfeatures()")
ffe52429f870 ("lib/crypto: x86: Stop using cpu_has_xfeatures()")
9256e0496c14 ("crypto: x86 - Stop using cpu_has_xfeatures()")
19c5d90800a2 ("um: Check for missing AVX and AVX-512 xstate bits")
518aa9948e4f ("x86/fpu: Check for missing AVX and AVX-512 xstate bits")
68aca309e49c ("perf/x86/intel: Add sanity check for PEBS record/fragment size")
c34db2f95094 ("perf/x86: Activate back-to-back NMI detection for arch-PEBS induced NMIs")
00cf8daabe2b ("perf/x86/intel: Advertise PERF_PMU_CAP_SIMD_REGS capability")
c4fabb67a47f ("perf/x86/intel: Support arch-PEBS based SIMD/eGPRs sampling")
098cdd582a9b ("perf/x86: Support SSP sampling using sample_regs_* fields")
578460d9af8d ("perf/x86: Support eGPRs sampling using sample_regs_* fields")
a2c64c74c029 ("perf: Enhance perf_reg_validate() with simd_enabled argument")
74d55a827e31 ("perf/x86: Support OPMASK sampling using sample_simd_pred_reg_* fields")
3807f6996a0b ("perf/x86: Support ZMM sampling using sample_simd_vec_reg_* fields")
b76210d32147 ("perf/x86: Support YMM sampling using sample_simd_vec_reg_* fields")
e9d76ada769c ("perf/x86: Support XMM sampling using sample_simd_vec_reg_* fields")
918b7d6d1729 ("perf: Add sampling support for SIMD registers")
edd9aec51213 ("perf/x86: Enable XMM register sampling for REGS_USER case")
b84c96283684 ("perf/x86: Enable XMM register sampling for non-PEBS events")
c09466807467 ("perf/x86/intel: Centralize PERF_PMU_CAP_EXTENDED_REGS updates")
05fe8825796e ("perf: Move and enhance has_extended_regs() for arch-specific use")
450d73dc5f91 ("x86/fpu: Add update_fpu_state_and_flag() helper")
03b89c9f202e ("x86/fpu/xstate: Add xsaves_nmi() helper")
9c05620b4971 ("perf/x86: Use x86_perf_regs in NMI handlers")
cb388bd530cc ("perf: Eliminate duplicate arch-specific function definitions")
bbdf84fcedfa ("perf/x86/intel: Convert x86_perf_regs to per-cpu variables")
62e074f55f41 ("perf/x86/intel: Enable large PEBS sampling for XMMs")
9106892e27ca ("perf/x86: Move hybrid PMU initialization before x86_pmu_starting_cpu()")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Commit c594b83457cc ("arm64: mm: call pagetable dtor when freeing
hot-removed page tables") made free_hotplug_pgtable_page()
unconditionally run the page-table destructor. This matches page tables
allocated by the arm64 mapping code, which runs the corresponding
constructors.
However, arm64 also uses the generic sparse-vmemmap population code.
Runtime intermediate page tables allocated by that code do not run a
page-table constructor. Freeing one during memory hot-remove therefore
runs a destructor without a matching constructor and corrupts
NR_PAGETABLE accounting.
Free intermediate page-table pages through pagetable_free(). It runs the
destructor only for constructor-backed pages and then releases the page
through the page-table freeing path.
Link: https://lore.kernel.org/20261010112457.49485-5-songmuchun@bytedance.com
Fixes: c594b83457cc ("arm64: mm: call pagetable dtor when freeing hot-removed page tables")
Signed-off-by: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Assisted-by: LLM
Cc: David Hildenbrand <david@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Björn Töpel <bjorn@rivosinc.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: <stable@vger.kernel.org>
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The is_vm_hugetlb_page() predicate is badly named - the mapping can span
more than a page and it is inconsistent with other VMA predicates that
typically are prefixed by vma_.
Rename to vma_is_hugetlb() for consistency, and while we're here update
some VM_BUG_ON_VMA() to VM_WARN_ON_ONCE_VMA() as to avoid unnecessary
oopses.
No functional change intended.
Link: https://lore.kernel.org/20261013-b4-mmap-prepare-vma-flag-sanify-v6-28-1aa3c9b139f9@kernel.org
Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Anup Patel <anup@brainfault.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Nico Pache <nico.pache@linux.dev>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Usama Arif <usama.arif@linux.dev>
Cc: Kiryl Shutsemau <kas@kernel.org>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: James Bottomley <james.bottomley@hansenpartnership.com>
Cc: Martin K. Petersen <mkp@kernel.org>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Harry Yoo <harry@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Oliver Upton <oupton@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: Ying Huang <ying.huang@linux.alibaba.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Youngjun Park <youngjun.park@lge.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Qi Zheng <qi.zheng@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Xu Xin <xu.xin@linux.dev>
Cc: Ihor Solodrai <ihor.solodrai@linux.dev>
Cc: Bert Karwatzki <spasswolf@web.de>
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Verification that the kernel does not have writable + executable mappings
is about detecting security risks rather than a pure debug feature.
Major distribution configurations enable it in their kernels as well as
defconfigs of most architectures that have ARCH_HAS_DEBUG_WX.
Rename relevant generic configuration options to use CHECK_WX and move
their definitions from mm/Kconfig.debug to mm/Kconfig.
Rename *debug_checkwx() funcitons and macros to *pgtable_checkwx().
For arm that does not widely enable it, only rename its variants of the
config options.
Enabling CHECK_WX adds a few kilobytes to the kernel binary and while the
added size can be slightly reduced with churny updates of architecture
implementations of ptdump, the core functionality takes most of the added
size. It cannot be moved to .init.text because the verification has to
happen after init sections are freed.
With this, make generic CHECK_WX default to STRICT_KERNEL_RWX while
still leaving users targeting small kernels the possibility to opt-out.
Link: https://lore.kernel.org/20260926-direct-map-verify-wx-v2-1-efcd64a6b74a@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Suggested-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <chleroy@kernel.org>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Will Deacon <will@kernel.org>
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Standardize printing for pgtable entries using recently introduced generic
helper ptval_bytes_to_hex_str() in core MM which automatically enables 128
bits entries when added later.
Link: https://lore.kernel.org/20260916044933.2689426-3-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
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fix this:
>> aarch64-linux-ld: Unexpected GOT/PLT entries detected!
>> aarch64-linux-ld: Unexpected run-time procedure linkages detected!
aarch64-linux-ld: arch/arm64/mm/mmu.o: in function `__set_ptes_anysz.isra.40.constprop.47':
>> mmu.c:(.text+0x9a8): undefined reference to `__check_safe_pte_update'
aarch64-linux-ld: arch/arm64/mm/hugetlbpage.o: in function `__set_ptes_anysz.isra.32':
>> hugetlbpage.c:(.text+0x1a8): undefined reference to `__check_safe_pte_update'
aarch64-linux-ld: kernel/bpf/arena.o: in function `apply_range_set_cb':
>> arena.c:(.text+0x11fc): undefined reference to `__check_safe_pte_update'
aarch64-linux-ld: mm/gup.o: in function `follow_page_pte':
>> gup.c:(.text+0x2b48): undefined reference to `__check_safe_pte_update'
aarch64-linux-ld: mm/memory.o: in function `__set_ptes.isra.207':
>> memory.c:(.text+0x3418): undefined reference to `__check_safe_pte_update'
aarch64-linux-ld: mm/mprotect.o:mprotect.c:(.text+0x1080): more undefined references to `__check_safe_pte_update' follow
Link: https://lore.kernel.org/99023678-fd8a-4eef-8e43-a07b504e3e96@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609270030.Y0QVBPmK-lkp@intel.com/
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
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Patch series "arm64/mm: Standardize printing for pgtable entries", v3.
Standardize printing for pgtable entries using recently introduced generic
helper ptval_bytes_to_hex_str() in core MM which automatically enables 128
bits entries when added later.
But first move __check_safe_pte_update() outside <asm/pgtable.h> to avoid
a cyclic dependency while accessing these afore mentioned core MM helpers
defined in <linux/pgtable.h>. This replaces the original page table entry
print standardisation proposal which was part of the D128 series [1].
This patch (of 2):
The page table entry print helpers and related macros which are defined in
<linux/pgtable.h> will not be accessible in platform <asm/pgtable.h> which
is basically caused by cycling dependency.
Move __check_safe_pte_update() inside arch/arm64/mm/mmu.c as a preparation
for subsequent usage of the afore mentioned generic MM helpers. While
here drop IS_ENABLED(CONFIG_DEBUG_VM), although wrap
__check_safe_pte_update() inside #ifdef CONFIG_DEBUG_VM that preserves the
current code optimization which is achieved via the static inline
functions.
This does not cause any functional change.
Link: https://lore.kernel.org/20260916044933.2689426-2-anshuman.khandual@arm.com
Link: https://lore.kernel.org/linux-mm/20260729122452.3797443-11-anshuman.khandual@arm.com/ [1]
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
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'arm64-fixes-for-7.3', 'arm64-for-7.4', 'clk-fixes-for-7.3', 'clk-for-7.4', 'drivers-fixes-for-7.3' and 'drivers-for-7.4' into for-next
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* fixes: (69 commits)
KVM: x86: Use active memslots for the per-vCPU MMIO cache
KVM: SEV: Fix page dirtying in sev_gmem_post_populate()
KVM: SVM: Clear AVIC Physical ID table entry if vCPU creation fails
KVM: SVM: Use "is AVIC-addressable" helper to sanity check load()/put()
KVM: SVM: Add paranoid helper for checking if vCPU is AVIC-addressable
KVM: SEV: Do cache maintenance on the source VM *before* clearing SEV state
KVM: SEV: Nullify "have run CPUs" mask pointer when freeing it
KVM: selftests: Extend nested x2APIC test to validate using eVMCS for vmcs12
KVM: selftests: Extend nested x2APIC test to validate disabling x2APIC virt
KVM: selftests: Verify that L0's TPR doesn't get clobbered
KVM: selftests: Run the nested x2APIC with and without APICv being inhibited in L2
KVM: selftests: Add x2APIC MSR test for inhibiting APICv while nested
KVM: nVMX: Force MSR bitmap refresh if runtime eVMCS controls are modified
KVM: SVM: Use the active VMCB's MSR bitmap when checking if MSR is intercepted
KVM: SVM: Sync guest's PERF_CNTR_GLOBAL_CTL from h/w only on successful VMRUN
KVM: SVM: Don't mark ASID fields as dirty when setting control.tlb_ctl
KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded
KVM: SVM: Preserve TLB control (i.e. pending TLB flush) on failed VMRUN
KVM: x86/mmu: Bail from shadow walks if the root is invalid or a dummy
KVM: WARN if vCPU creation is in-progress when locking all vCPUs
...
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Signed-off-by: Christian Brauner <brauner@kernel.org>
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