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Message-ID: <DE8DF0795D48FD4CA783C40EC8292335146A7A@SHSMSX101.ccr.corp.intel.com>
Date: Mon, 16 Apr 2012 01:07:35 +0000
From: "Liu, Jinsong" <jinsong.liu@...el.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] Register native mce handler as vMCE bounce back point
>From 76e40a60878ff72986fd8d92611400195ae0f997 Mon Sep 17 00:00:00 2001
From: Liu, Jinsong <jinsong.liu@...el.com>
Date: Mon, 16 Apr 2012 00:16:58 +0800
Subject: [PATCH 2/2] Register native mce handler as vMCE bounce back point
When xen hyeprvisor inject vMCE to guest, use native mce handler to handle it
Signed-off-by: Liu, Jinsong <jinsong.liu@...el.com>
Signed-off-by: Ke, Liping <liping.ke@...el.com>
Signed-off-by: Jiang, Yunhong <yunhong.jiang@...el.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
arch/x86/xen/enlighten.c | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 15628d4..346ba64 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -614,8 +614,8 @@ static int cvt_gate_to_trap(int vector, const gate_desc *val,
/*
* Look for known traps using IST, and substitute them
* appropriately. The debugger ones are the only ones we care
- * about. Xen will handle faults like double_fault and
- * machine_check, so we should never see them. Warn if
+ * about. Xen will handle faults like double_fault,
+ * so we should never see them. Warn if
* there's an unexpected IST-using fault handler.
*/
if (addr == (unsigned long)debug)
@@ -630,7 +630,11 @@ static int cvt_gate_to_trap(int vector, const gate_desc *val,
return 0;
#ifdef CONFIG_X86_MCE
} else if (addr == (unsigned long)machine_check) {
- return 0;
+ /*
+ * when xen hyeprvisor inject vMCE to guest,
+ * use native mce handler to handle it
+ */
+ ;
#endif
} else {
/* Some other trap using IST? */
--
1.7.1
Download attachment "0002-Register-native-mce-handler-as-vMCE-bounce-back-poin.patch" of type "application/octet-stream" (1663 bytes)
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