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Groups > linux.kernel > #1513247

[RFC PATCH 2/3] x86/RAS: Add TSC to the injected MCE

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject [RFC PATCH 2/3] x86/RAS: Add TSC to the injected MCE
Date 2016-11-01 13:20 +0100
Message-ID <syGcN-9Z-3@gated-at.bofh.it> (permalink)
References <syG38-8vJ-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Borislav Petkov <bp@suse.de>

Add the TSC at the time of injection.

Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/ras/mce_amd_inj.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/ras/mce_amd_inj.c b/arch/x86/ras/mce_amd_inj.c
index 1ac76479c266..8730c2882fff 100644
--- a/arch/x86/ras/mce_amd_inj.c
+++ b/arch/x86/ras/mce_amd_inj.c
@@ -275,6 +275,8 @@ static void do_inject(void)
 	unsigned int cpu = i_mce.extcpu;
 	u8 b = i_mce.bank;
 
+	rdtscll(i_mce.tsc);
+
 	if (i_mce.misc)
 		i_mce.status |= MCI_STATUS_MISCV;
 
-- 
2.10.0

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[RFC PATCH 2/3] x86/RAS: Add TSC to the injected MCE Borislav Petkov <bp@alien8.de> - 2016-11-01 13:20 +0100
  [tip:ras/core] x86/RAS: Add TSC timestamp to the injected MCE tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-11-08 17:20 +0100

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