David Carlier b7403afb7a arm64: errata: match the target implementation CPU's own MIDR ... __is_affected_midr_range() is handed the MIDR and REVIDR of one target implementation CPU, but tests the erratum's range with is_midr_in_range(), which re-scans all of target_impl_cpus[] and ignores the @midr argument. The range test is thus constant across the per-CPU loop in is_affected_midr_range() and only answers "is any target CPU in range". Since just the fixed_revs REVIDR check uses the iteration's own registers, an out-of-range target CPU can decide whether a MIDR_FIXED() exemption applies. A VM then enables a workaround whose only in-range CPU is fixed silicon, e.g. erratum 2658417 on a Cortex-A510 r1p1 with REVIDR_EL1[25] set. Factor the range test into __is_midr_in_range(), which takes an explicit MIDR, and use it in __is_affected_midr_range(). Fixes: 86edf6bdcf ("smccc/kvm_guest: Enable errata based on implementation CPUs") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-5 Signed-off-by: David Carlier <devnexen@gmail.com> Signed-off-by: Will Deacon <will@kernel.org>		2026-09-18 11:24:16 +00:00
..
pi	arm64: Add override for WFxT	2026-09-18 11:17:02 +00:00
probes	arm64: kprobes: Allow reentering kprobes while single-stepping	2026-07-17 19:03:08 +01:00
vdso
vdso32	arm64: vdso32: Respect COMPAT_32BIT_TIME	2026-07-07 23:52:53 +02:00
.gitignore
acpi_numa.c
acpi_parking_protocol.c
acpi.c	cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()	2026-06-29 11:47:36 +01:00
alternative.c	arm64: Reject modules with internal alternative callbacks	2025-11-07 15:00:14 +00:00
armv8_deprecated.c	arm64: armv8_deprecated: Disable swp emulation when FEAT_LSUI present	2026-03-27 17:29:10 +00:00
asm-offsets.c	KVM: arm64: Avoid mismatched accesses to 'struct kvm_nvhe_init_params'	2026-08-19 12:22:24 -07:00
cacheinfo.c
compat_alignment.c	arm64: compat: Fix decrementing LDM/STM alignment emulation	2026-08-27 14:16:04 +00:00
cpu_errata.c	arm64: errata: match the target implementation CPU's own MIDR	2026-09-18 11:24:16 +00:00
cpu_ops.c
cpu-reset.S
cpufeature.c	arm64: Don't read GMID_EL1 when MTE is disabled	2026-09-03 13:03:23 +00:00
cpuinfo.c	arm64: Don't read GMID_EL1 when MTE is disabled	2026-09-03 13:03:23 +00:00
crash_dump.c
debug-monitors.c	arm64: debug: don't mask DAIF for mdscr_write()	2026-08-06 13:07:45 +00:00
efi-header.S
efi-rt-wrapper.S
efi.c	arm64/efi: Avoid voluntary preemption with efi_mm installed	2026-08-12 10:21:20 +00:00
elfcore.c
entry-common.c	arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit	2026-08-11 11:35:08 +00:00
entry-ftrace.S	arm64: Fix double word in comments	2025-11-12 17:07:59 +00:00
entry.S	arm64: entry: mask DAIF before returning from C EL1 handlers	2026-08-06 13:07:46 +00:00
fpsimd.c	arm64: Avoid eager DVMSync reclaim batches with C1-Pro SME erratum	2026-06-29 12:00:37 +01:00
ftrace.c	arm64: ftrace: prepare ftrace_modify_call() for use without CALL_OPS	2026-07-22 20:50:51 +00:00
head.S	KVM: arm64: Trap MTE access and discovery when MTE is disabled	2026-01-23 11:28:48 +00:00
hibernate-asm.S	arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc	2026-09-09 12:51:20 +00:00
hibernate.c	arm64: hibernate: clone only the linear map that exists at runtime	2026-09-11 12:14:43 +00:00
hw_breakpoint.c	arm64/hw_breakpoint: reject unaligned watchpoints that would truncate BAS	2026-06-19 17:04:57 +01:00
hyp-stub.S	KVM: arm64: Don't populate TPIDR_EL2 in finalise_el2()	2026-05-27 15:30:39 +01:00
idle.c	arch: arm64: add early_param idle=<wfi|yield|nop>	2026-08-06 13:10:03 +00:00
image-vars.h	Merge branch 'kvm-arm64/vtr-patch' into next	2026-08-19 14:05:49 -07:00
image.h
io.c
irq.c	arm64: panic from init_IRQ if IRQ handler stacks cannot be allocated	2026-05-19 12:27:10 +01:00
jump_label.c
kaslr.c
kexec_image.c	arm64: kernel: initialize missing kexec_buf->random field	2026-01-05 21:27:43 +00:00
kgdb.c
kuser32.S
machine_kexec_file.c	arm64: kexec_file: Add support for crashkernel CMA reservation	2026-06-30 18:49:06 +03:00
machine_kexec.c	arm64: trans_pgd: clone only the linear map that exists at runtime	2026-09-03 13:01:15 +00:00
Makefile	arm64: fpsimd: Move SME save/restore inline	2026-06-03 16:50:49 +01:00
Makefile.syscalls
module-plts.c
module.c	arm64: Reject modules with internal alternative callbacks	2025-11-07 15:00:14 +00:00
mpam.c	arm64: mpam: Initialise and context switch the MPAMSM_EL1 register	2026-03-27 15:29:02 +00:00
mte.c	arm64: mte: Fix PTRACE_{PEEK,POKE}MTETAGS error documentation	2026-09-11 12:50:02 +00:00
paravirt.c	arm64/paravirt: Use common code for paravirt_steal_clock()	2026-01-12 16:30:00 +01:00
patching.c	arm64: patching: replace min_t with min in __text_poke	2026-06-03 21:15:24 +01:00
pci.c
perf_callchain.c
perf_regs.c
pointer_auth.c
process.c	arm64: Avoid eager DVMSync reclaim batches with C1-Pro SME erratum	2026-06-29 12:00:37 +01:00
proton-pack.c	arm64: proton-pack: Restore the nospectre_bhb command-line option	2026-07-28 10:29:25 +00:00
psci.c
ptrace.c	Generic entry code updates:	2026-08-18 15:00:56 -07:00
reloc_test_core.c
reloc_test_syms.S
relocate_kernel.S	arm64: Provide dcache_by_myline_op_nosync helper	2026-03-13 23:46:32 +01:00
return_address.c
rsi.c	arm64/coco: Add pKVM as a CC platform	2026-07-21 22:27:47 +00:00
sdei.c	Merge branches 'for-next/misc', 'for-next/kselftest', 'for-next/efi-preempt', 'for-next/assembler-macro', 'for-next/typos', 'for-next/sme-ptrace-disable', 'for-next/local-tlbi-page-reused', 'for-next/mpam', 'for-next/acpi' and 'for-next/documentation', remote-tracking branch 'arm64/for-next/perf' into for-next/core	2025-11-28 15:47:12 +00:00
setup.c	arm64: remove early_ioremap_reset() call and __late_* macros	2026-08-06 18:57:22 -07:00
signal.c	arm64: signal: Preserve POR_EL0 if poe_context is missing	2026-05-01 17:44:25 +01:00
signal32.c
sigreturn32.S
sleep.S
smccc-call.S
smp_spin_table.c
smp.c	Merge branch 'for-next/sdei' into for-next/core	2026-08-14 10:16:12 +00:00
stacktrace.c
static_call.c	arm64: static_call: include asm/insns.h	2026-06-19 15:27:33 +01:00
suspend.c	arm64: suspend: rely on daif helpers to handle PMR	2026-08-06 13:07:45 +00:00
sys_compat.c	Merge branch 'for-next/c1-pro-erratum-4193714' into for-next/core	2026-04-20 13:12:35 +01:00
sys.c
sys32.c	fs: fix archiecture-specific compat_ftruncate64	2026-03-23 12:41:57 +01:00
syscall.c	randomize_kstack: Unify random source across arches	2026-03-24 21:12:03 -07:00
time.c
topology.c	arm64: topology: read CPPC FFH feedback counters in one operation	2026-07-22 20:01:23 +00:00
trace-events-emulation.h
traps.c	arm64: Fix typos and spelling errors in comments	2025-11-12 17:06:21 +00:00
vdso-wrap.S
vdso.c	Convert more 'alloc_obj' cases to default GFP_KERNEL arguments	2026-02-21 20:03:00 -08:00
vdso32-wrap.S
vmcore_info.c	arm64/sysreg: Replace TCR_EL1 field macros	2025-11-13 15:58:30 +00:00
vmlinux.lds.S	arm64 updates for 7.2	2026-06-16 05:18:04 +05:30
watchdog_hld.c