linux-kernel - [tip:ras/core] x86/RAS: Add TSC timestamp to the injected MCE

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Date:   Tue, 8 Nov 2016 08:19:24 -0800
From:   tip-bot for Borislav Petkov <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     bp@...e.de, linux-kernel@...r.kernel.org, hpa@...or.com,
        tglx@...utronix.de, mingo@...nel.org
Subject: [tip:ras/core] x86/RAS: Add TSC timestamp to the injected MCE

Commit-ID:  8c203dbb78ca7a9aed4e2570c866b0f43c752e41
Gitweb:     http://git.kernel.org/tip/8c203dbb78ca7a9aed4e2570c866b0f43c752e41
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Tue, 1 Nov 2016 13:04:41 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 8 Nov 2016 17:10:13 +0100

x86/RAS: Add TSC timestamp to the injected MCE

The MCE injection code does not provide the time stamp information for the
injected MCE. Add it.

Signed-off-by: Borislav Petkov <bp@...e.de>
Link: http://lkml.kernel.org/r/20161101120911.13163-3-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@...utronix.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 1ac7647..8730c28 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;