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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 19:21:37 +0100 |
| commit | 955607466ace0455164cf391a93c23918022e8e8 (patch) | |
| tree | 416f19c64466af8ffd3b2b9807993d133537240e | |
| parent | f9aa6b73a407b714c9aac44734eb4045c893c6f7 (diff) | |
| download | linux-stable-955607466ace0455164cf391a93c23918022e8e8.tar.gz linux-stable-955607466ace0455164cf391a93c23918022e8e8.tar.bz2 linux-stable-955607466ace0455164cf391a93c23918022e8e8.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 c60b48bc634f..1e07814f02bc 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1000,6 +1000,8 @@ 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), |