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authorRich Wiley <rwiley@nvidia.com>2019-11-05 10:45:10 -0800
committerCatalin Marinas <catalin.marinas@arm.com>2019-11-06 11:31:03 +0000
commit918e1946c8ac2c0473eefc1dc910780178490e95 (patch)
tree5af7dc62824e0a0734af83682179da6a1d34b471 /arch/arm64
parentarm64: mm: Remove MAX_USER_VA_BITS definition (diff)
downloadlinux-dev-918e1946c8ac2c0473eefc1dc910780178490e95.tar.xz
linux-dev-918e1946c8ac2c0473eefc1dc910780178490e95.zip
arm64: kpti: Add NVIDIA's Carmel core to the KPTI whitelist
NVIDIA Carmel CPUs don't implement ID_AA64PFR0_EL1.CSV3 but aren't susceptible to Meltdown, so add Carmel to kpti_safe_list[]. Signed-off-by: Rich Wiley <rwiley@nvidia.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/kernel/cpufeature.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index cabebf1a7976..b3eea965c930 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -977,6 +977,7 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
+ MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
{ /* sentinel */ }
};
char const *str = "kpti command line option";