Commit 23e12b54 authored by Daniel Sneddon's avatar Daniel Sneddon Committed by Borislav Petkov (AMD)
Browse files

x86/bugs: Add missing NO_SSB flag 

The Moorefield and Lightning Mountain Atom processors are
missing the NO_SSB flag in the vulnerabilities whitelist.
This will cause unaffected parts to incorrectly be reported
as vulnerable. Add the missing flag.

These parts are currently out of service and were verified
internally with archived documentation that they need the
NO_SSB flag.

Closes: https://lore.kernel.org/lkml/CAEJ9NQdhh+4GxrtG1DuYgqYhvc0hi-sKZh-2niukJ-MyFLntAA@mail.gmail.com/


Reported-by: default avatarShanavas.K.S <shanavasks@gmail.com>
Signed-off-by: default avatarDaniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240829192437.4074196-1-daniel.sneddon@linux.intel.com
parent 40153505

arch/x86/kernel/cpu/common.c

+2 −2
Original line number Diff line number Diff line
@@ -1165,8 +1165,8 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = { 


	VULNWL_INTEL(INTEL_CORE_YONAH,		NO_SSB),



	VULNWL_INTEL(INTEL_ATOM_AIRMONT_MID,	NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),

	VULNWL_INTEL(INTEL_ATOM_AIRMONT_NP,	NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT),

	VULNWL_INTEL(INTEL_ATOM_AIRMONT_MID,	NO_SSB | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT | MSBDS_ONLY),

	VULNWL_INTEL(INTEL_ATOM_AIRMONT_NP,	NO_SSB | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT),



	VULNWL_INTEL(INTEL_ATOM_GOLDMONT,	NO_MDS | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT | NO_MMIO),

	VULNWL_INTEL(INTEL_ATOM_GOLDMONT_D,	NO_MDS | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT | NO_MMIO),