* [tip: x86/urgent] x86/mce: Add errata workaround for Skylake SKX37
[not found] <20211029205759.GA7385@codemonkey.org.uk>
@ 2021-11-12 21:03 ` tip-bot2 for Dave Jones
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From: tip-bot2 for Dave Jones @ 2021-11-12 21:03 UTC (permalink / raw)
To: linux-tip-commits
Cc: Dave Jones, Dave Hansen, Tony Luck, stable, x86, linux-kernel
The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: e629fc1407a63dbb748f828f9814463ffc2a0af0
Gitweb: https://git.kernel.org/tip/e629fc1407a63dbb748f828f9814463ffc2a0af0
Author: Dave Jones <davej@codemonkey.org.uk>
AuthorDate: Fri, 29 Oct 2021 16:57:59 -04:00
Committer: Dave Hansen <dave.hansen@linux.intel.com>
CommitterDate: Fri, 12 Nov 2021 11:43:35 -08:00
x86/mce: Add errata workaround for Skylake SKX37
Errata SKX37 is word-for-word identical to the other errata listed in
this workaround. I happened to notice this after investigating a CMCI
storm on a Skylake host. While I can't confirm this was the root cause,
spurious corrected errors does sound like a likely suspect.
Fixes: 2976908e4198 ("x86/mce: Do not log spurious corrected mce errors")
Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20211029205759.GA7385@codemonkey.org.uk
---
arch/x86/kernel/cpu/mce/intel.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/intel.c
index acfd5d9..bb9a46a 100644
--- a/arch/x86/kernel/cpu/mce/intel.c
+++ b/arch/x86/kernel/cpu/mce/intel.c
@@ -547,12 +547,13 @@ bool intel_filter_mce(struct mce *m)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
- /* MCE errata HSD131, HSM142, HSW131, BDM48, and HSM142 */
+ /* MCE errata HSD131, HSM142, HSW131, BDM48, HSM142 and SKX37 */
if ((c->x86 == 6) &&
((c->x86_model == INTEL_FAM6_HASWELL) ||
(c->x86_model == INTEL_FAM6_HASWELL_L) ||
(c->x86_model == INTEL_FAM6_BROADWELL) ||
- (c->x86_model == INTEL_FAM6_HASWELL_G)) &&
+ (c->x86_model == INTEL_FAM6_HASWELL_G) ||
+ (c->x86_model == INTEL_FAM6_SKYLAKE_X)) &&
(m->bank == 0) &&
((m->status & 0xa0000000ffffffff) == 0x80000000000f0005))
return true;
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