linux-kernel - [PATCH 4/5] x86/mce: Clarify comments regarding deferred error

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Message-Id: <1457355741-32651-5-git-send-email-bp@alien8.de>
Date:	Mon,  7 Mar 2016 14:02:20 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	X86 ML <x86@...nel.org>, linux-edac <linux-edac@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/5] x86/mce: Clarify comments regarding deferred error

From: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>

Deferred errors indicate errors that hardware could not fix. But it
still does not cause any interruption to program flow. So it does not
generate any #MC and UC bit in MCx_STATUS is not set.

Correct comment.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: linux-edac <linux-edac@...r.kernel.org>
Cc: Tony Luck <tony.luck@...el.com>
Cc: x86-ml <x86@...nel.org>
Link: http://lkml.kernel.org/r/1457021458-2522-5-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/include/asm/mce.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 72f86882d62a..cfff34172be0 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -40,7 +40,7 @@
 #define MCI_STATUS_AR	 (1ULL<<55)  /* Action required */
 
 /* AMD-specific bits */
-#define MCI_STATUS_DEFERRED	(1ULL<<44)  /* declare an uncorrected error */
+#define MCI_STATUS_DEFERRED	(1ULL<<44)  /* uncorrected error, deferred exception */
 #define MCI_STATUS_POISON	(1ULL<<43)  /* access poisonous data */
 #define MCI_STATUS_TCC		(1ULL<<55)  /* Task context corrupt */
 
-- 
2.3.5