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| author | Pawan Gupta <pawan.kumar.gupta@linux.intel.com> | 2019-11-04 12:22:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-12 19:28:29 +0100 |
| commit | 034967e8bd7d7f9dfd9c1348463906f0372fc999 (patch) | |
| tree | 443ec63cc05c6a9bb4519826694514ced8b4b7ec | |
| parent | 8e79a48022f5f861e39babf31ee62f55328b8e09 (diff) | |
| download | linux-034967e8bd7d7f9dfd9c1348463906f0372fc999.tar.gz linux-034967e8bd7d7f9dfd9c1348463906f0372fc999.tar.bz2 linux-034967e8bd7d7f9dfd9c1348463906f0372fc999.zip | |
x86/cpu: Add Tremont to the cpu vulnerability whitelist
commit cad14885a8d32c1c0d8eaa7bf5c0152a22b6080e upstream.
Add the new cpu family ATOM_TREMONT_D to the cpu vunerability
whitelist. ATOM_TREMONT_D is not affected by X86_BUG_ITLB_MULTIHIT.
ATOM_TREMONT_D might have mitigations against other issues as well, but
only the ITLB multihit mitigation is confirmed at this point.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 23e31493c67f..663b27bdea88 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1073,6 +1073,8 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = { * good enough for our purposes. */ + VULNWL_INTEL(ATOM_TREMONT_X, NO_ITLB_MULTIHIT), + /* AMD Family 0xf - 0x12 */ VULNWL_AMD(0x0f, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT), VULNWL_AMD(0x10, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT), |