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From: zhangyanfei <zhangyanfei@cn.fujitsu.com>
To: x86@kernel.org, kexec@lists.infradead.org,
	Avi Kivity <avi@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>
Cc: linux-kernel@vger.kernel.org,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: [PATCH v3 2/2] KVM: make crash_clear_loaded_vmcss valid when loading kvm_intel module
Date: Wed, 31 Oct 2012 11:34:13 +0800	[thread overview]
Message-ID: <50909C35.9080702@cn.fujitsu.com> (raw)
In-Reply-To: <50909B55.2070901@cn.fujitsu.com>

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
---
 arch/x86/kvm/vmx.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 4ff0ab9..f6a16b2 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -41,6 +41,7 @@
 #include <asm/i387.h>
 #include <asm/xcr.h>
 #include <asm/perf_event.h>
+#include <asm/kexec.h>
 
 #include "trace.h"
 
@@ -7230,6 +7231,10 @@ static int __init vmx_init(void)
 	if (r)
 		goto out3;
 
+#ifdef CONFIG_KEXEC
+	crash_clear_loaded_vmcss = vmclear_local_loaded_vmcss;
+#endif
+
 	vmx_disable_intercept_for_msr(MSR_FS_BASE, false);
 	vmx_disable_intercept_for_msr(MSR_GS_BASE, false);
 	vmx_disable_intercept_for_msr(MSR_KERNEL_GS_BASE, true);
@@ -7265,6 +7270,10 @@ static void __exit vmx_exit(void)
 	free_page((unsigned long)vmx_io_bitmap_b);
 	free_page((unsigned long)vmx_io_bitmap_a);
 
+#ifdef CONFIG_KEXEC
+	crash_clear_loaded_vmcss = NULL;
+#endif
+
 	kvm_exit();
 }
 
-- 
1.7.1


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  parent reply	other threads:[~2012-10-31  3:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-31  3:30 [PATCH v3 0/2] x86: clear vmcss on all cpus when doing kdump if necessary zhangyanfei
2012-10-31  3:32 ` [PATCH v3 1/2] x86/kexec: VMCLEAR vmcss on all cpus " zhangyanfei
2012-10-31  3:34 ` zhangyanfei [this message]
2012-10-31  9:01   ` [PATCH v3 2/2] KVM: make crash_clear_loaded_vmcss valid when loading kvm_intel module Hatayama, Daisuke
2012-11-01  5:55     ` zhangyanfei
2012-11-13 21:22       ` Marcelo Tosatti
2012-11-14  9:13         ` zhangyanfei
2012-11-13  3:07 ` [PATCH v3 0/2] x86: clear vmcss on all cpus when doing kdump if necessary zhangyanfei

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