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From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
To: x86@kernel.org, kexec@lists.infradead.org,
	linux-doc@vger.kernel.org, Avi Kivity <avi@redhat.com>,
	mtosatti@redhat.com
Cc: linux-kernel@vger.kernel.org,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: [PATCH 2/3] KVM: make crash_clear_loaded_vmcss valid when kvm_intel is loaded
Date: Fri, 12 Oct 2012 14:44:33 +0800	[thread overview]
Message-ID: <5077BC51.50107@cn.fujitsu.com> (raw)
In-Reply-To: <5077BB7B.4030203@cn.fujitsu.com>

Signed-off-by: zhangyanfei <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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kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
To: x86@kernel.org, kexec@lists.infradead.org,
	linux-doc@vger.kernel.org, Avi Kivity <avi@redhat.com>,
	mtosatti@redhat.com
Cc: linux-kernel@vger.kernel.org,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: [PATCH 2/3] KVM: make crash_clear_loaded_vmcss valid when kvm_intel is loaded
Date: Fri, 12 Oct 2012 14:44:33 +0800	[thread overview]
Message-ID: <5077BC51.50107@cn.fujitsu.com> (raw)
In-Reply-To: <5077BB7B.4030203@cn.fujitsu.com>

Signed-off-by: zhangyanfei <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

  parent reply	other threads:[~2012-10-12  6:45 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-12  6:40 [PATCH 0/3] x86: clear vmcss on all cpus when doing kdump if necessary Zhang Yanfei
2012-10-12  6:40 ` Zhang Yanfei
2012-10-12  6:43 ` [PATCH 1/3] x86/kexec: clear vmcss on all cpus " Zhang Yanfei
2012-10-12  6:43   ` Zhang Yanfei
2012-10-12  6:44 ` Zhang Yanfei [this message]
2012-10-12  6:44   ` [PATCH 2/3] KVM: make crash_clear_loaded_vmcss valid when kvm_intel is loaded Zhang Yanfei
2012-10-12  6:45 ` [PATCH 3/3] sysctl: introduce a new interface to control kdump-vmcs-clear behaviour Zhang Yanfei
2012-10-12  6:45   ` Zhang Yanfei
2012-10-15 15:43 ` [PATCH 0/3] x86: clear vmcss on all cpus when doing kdump if necessary Avi Kivity
2012-10-15 15:43   ` Avi Kivity
2012-10-15 15:43   ` Avi Kivity
2012-10-17  2:28   ` Zhang Yanfei
2012-10-17  2:28     ` Zhang Yanfei
2012-10-17 10:16     ` Avi Kivity
2012-10-17 10:16       ` Avi Kivity
2012-10-18  1:12       ` Zhang Yanfei
2012-10-18  1:12         ` Zhang Yanfei
2012-10-18 10:55         ` Avi Kivity
2012-10-18 10:55           ` Avi Kivity
2012-10-19  4:51           ` Zhang Yanfei
2012-10-19  4:51             ` Zhang Yanfei

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