summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorPawan Gupta <pawan.kumar.gupta@linux.intel.com>2019-11-04 12:22:01 +0100
committerThomas Gleixner <tglx@linutronix.de>2019-11-04 12:22:01 +0100
commitcad14885a8d32c1c0d8eaa7bf5c0152a22b6080e (patch)
tree5d9f48771e353698ec1d0ed271324e64bfb5554c /arch
parentdb4d30fbb71b47e4ecb11c4efa5d8aad4b03dfae (diff)
downloadlinux-cad14885a8d32c1c0d8eaa7bf5c0152a22b6080e.tar.bz2
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')
-rw-r--r--arch/x86/kernel/cpu/common.c2
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),