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| author | Shanker Donthineni <sdonthineni@nvidia.com> | 2026-06-09 18:40:44 -0500 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2026-06-10 11:54:30 +0100 |
| commit | ec7216f92e4ebd485b1c6dc6aa3f6064b71a5768 (patch) | |
| tree | 5699ed13144296cbbc9ba53615dfdf60e60df494 /arch/arm64/kernel | |
| parent | cfd391e74134db664feb499d43af286380b10ba8 (diff) | |
| download | linux-next-ec7216f92e4ebd485b1c6dc6aa3f6064b71a5768.tar.gz linux-next-ec7216f92e4ebd485b1c6dc6aa3f6064b71a5768.zip | |
arm64: errata: Mitigate TLBI errata on NVIDIA Olympus CPU
NVIDIA Olympus cores are affected by the TLBI completion issue tracked as
CVE-2025-10263. The existing ARM64_ERRATUM_4118414 handling already uses
ARM64_WORKAROUND_REPEAT_TLBI to issue an additional broadcast TLBI;DSB
sequence and ensure affected memory write effects are globally observed.
Add MIDR_NVIDIA_OLYMPUS to the repeat-TLBI match list so the same
mitigation is enabled on affected Olympus systems. Also document the
NVIDIA Olympus erratum in the arm64 silicon errata table and list it in
the Kconfig help text.
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/cpu_errata.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 95e3be145fb1..476b0108057f 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -364,6 +364,7 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3AE), + MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS), {} })), }, |