From: Easwar Hariharan eahariha@linux.microsoft.com
[ Upstream commit 3eddb108abe3de6723cc4b77e8558ce1b3047987 ]
Add the Microsoft Azure Cobalt 100 CPU to the list of CPUs suffering from erratum 3194386 added in commit 75b3c43eab59 ("arm64: errata: Expand speculative SSBS workaround")
CC: Mark Rutland mark.rutland@arm.com CC: James More james.morse@arm.com CC: Will Deacon will@kernel.org CC: stable@vger.kernel.org # 6.6+ Signed-off-by: Easwar Hariharan eahariha@linux.microsoft.com Link: https://lore.kernel.org/r/20241003225239.321774-1-eahariha@linux.microsoft.c... Signed-off-by: Catalin Marinas catalin.marinas@arm.com [ Mark: trivial backport ] Signed-off-by: Mark Rutland mark.rutland@arm.com --- Documentation/arch/arm64/silicon-errata.rst | 2 ++ arch/arm64/kernel/cpu_errata.c | 1 + 2 files changed, 3 insertions(+)
diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst index e3276b62afb0c..3cf806733083c 100644 --- a/Documentation/arch/arm64/silicon-errata.rst +++ b/Documentation/arch/arm64/silicon-errata.rst @@ -284,3 +284,5 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | Microsoft | Azure Cobalt 100| #2253138 | ARM64_ERRATUM_2253138 | +----------------+-----------------+-----------------+-----------------------------+ +| Microsoft | Azure Cobalt 100| #3324339 | ARM64_ERRATUM_3194386 | ++----------------+-----------------+-----------------+-----------------------------+ diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index a5ab4bac1d9b9..463b48d0f9250 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -464,6 +464,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = { MIDR_ALL_VERSIONS(MIDR_CORTEX_X3), MIDR_ALL_VERSIONS(MIDR_CORTEX_X4), MIDR_ALL_VERSIONS(MIDR_CORTEX_X925), + MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3),