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| author |   Pawan Gupta <pawan.kumar.gupta@linux.intel.com> | 2019-11-04 12:22:01 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2019-11-04 12:22:01 +0100 |
| commit | cad14885a8d32c1c0d8eaa7bf5c0152a22b6080e (patch) | |
| tree | 5d9f48771e353698ec1d0ed271324e64bfb5554c /arch/x86/kernel/cpu/common.c | |
| parent | x86/bugs: Add ITLB_MULTIHIT bug infrastructure (diff) | |
| download | linux-dev-cad14885a8d32c1c0d8eaa7bf5c0152a22b6080e.tar.xz linux-dev-cad14885a8d32c1c0d8eaa7bf5c0152a22b6080e.zip | |
x86/cpu: Add Tremont to the cpu vulnerability whitelist
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>
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -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 d29b71ca3ca7..fffe21945374 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1074,6 +1074,8 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = { * good enough for our purposes. */ + VULNWL_INTEL(ATOM_TREMONT_D, 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), |