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[PATCH 3/4] x86/mce: Add the missing memory error check on AMD

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From: Borislav Petkov <bp@suse.de>

We simply need to look at the extended error code when detecting whether
the error is of type memory.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
---
 arch/x86/kernel/cpu/mcheck/mce.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index fb8b1db7b150..e00e85ab7387 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -522,10 +522,10 @@ static bool memory_error(struct mce *m)
 	struct cpuinfo_x86 *c = &boot_cpu_data;
 
 	if (c->x86_vendor == X86_VENDOR_AMD) {
-		/*
-		 * coming soon
-		 */
-		return false;
+		/* ErrCodeExt[20:16] */
+		u8 xec = (m->status >> 16) & 0x1f;
+
+		return (xec == 0x0 || xec == 0x8);
 	} else if (c->x86_vendor == X86_VENDOR_INTEL) {
 		/*
 		 * Intel SDM Volume 3B - 15.9.2 Compound Error Codes
-- 
2.3.5

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Thread

[PATCH 0/4] RAS stuff for tip:x86/ras Borislav Petkov <bp@alien8.de> - 2015-11-24 08:50 +0100
  [PATCH 1/4] x86/mce: Do not enter deferred errors into the generic pool twice Borislav Petkov <bp@alien8.de> - 2015-11-24 08:50 +0100
    [tip:ras/core] x86/mce:   Do not enter deferred errors into the generic pool twice tip-bot for Tony Luck <tipbot@zytor.com> - 2015-11-24 10:40 +0100
  [PATCH 3/4] x86/mce: Add the missing memory error check on AMD Borislav Petkov <bp@alien8.de> - 2015-11-24 08:50 +0100
    [tip:ras/core] x86/mce: Add the missing memory error check on AMD tip-bot for Borislav Petkov <tipbot@zytor.com> - 2015-11-24 11:00 +0100
  [PATCH 2/4] x86/RAS: Remove mce.usable_addr Borislav Petkov <bp@alien8.de> - 2015-11-24 08:50 +0100
    [tip:ras/core] x86/RAS: Remove mce.usable_addr tip-bot for Borislav Petkov <tipbot@zytor.com> - 2015-11-24 10:40 +0100

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