From: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Date: Mon, 28 Oct 2019 09:55:28 +0100
Subject: [PATCH 2/5] x86/cpu: Add Tremont to the cpu vulnerability
Patch-mainline: v5.4-rc8
Git-commit: cad14885a8d32c1c0d8eaa7bf5c0152a22b6080e
References: bsc#1117665, CVE-2018-12207
whitelist
This patch adds new cpu family ATOM_TREMONT_D to the cpu vunerability
whitelist. ATOM_TREMONT_D is not affected by X86_BUG_ITLB_MULTIHIT. There
may be more bugs not affecting ATOM_TREMONT_D which are not known at
this point and could be added later.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
arch/x86/kernel/cpu/common.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -959,6 +959,8 @@ static const __initconst struct x86_cpu_
* 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),