Commit-ID:  db548a28fcee0f38cf4c7c726becf24c8afacf02
Gitweb:     http://git.kernel.org/tip/db548a28fcee0f38cf4c7c726becf24c8afacf02
Author:     Borislav Petkov <[email protected]>
AuthorDate: Tue, 24 Nov 2015 08:41:19 +0100
Committer:  Ingo Molnar <[email protected]>
CommitDate: Tue, 24 Nov 2015 09:12:35 +0100

x86/mce: Add the missing memory error check on AMD

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

Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Tony Luck <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 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 fb8b1db..e00e85a 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to