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From: Eduardo Habkost <ehabkost@redhat.com>
To: Avi Kivity <avi@redhat.com>, Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@osdl.org>, Zachary Amsden <zach@vmware.com>,
	Eduardo Habkost <ehabkost@redhat.com>,
	kvm@vger.kernel.org, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>,
	Haren Myneni <hbabu@us.ibm.com>,
	Simon Horman <horms@verge.net.au>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Andrey Borzenkov <arvidjaar@mail.ru>,
	mingo@redhat.com, Vivek Goyal <vgoyal@redhat.com>
Subject: [PATCH 10/12] x86: cpu_emergency_svm_disable() function
Date: Mon, 17 Nov 2008 19:03:22 -0200	[thread overview]
Message-ID: <1226955804-16802-11-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1226955804-16802-1-git-send-email-ehabkost@redhat.com>

This function can be used by the reboot or kdump code to forcibly
disable SVM on the CPU.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 arch/x86/include/asm/virtext.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/virtext.h b/arch/x86/include/asm/virtext.h
index 2cfe363..5936362 100644
--- a/arch/x86/include/asm/virtext.h
+++ b/arch/x86/include/asm/virtext.h
@@ -121,4 +121,12 @@ static inline void cpu_svm_disable(void)
 	wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);
 }
 
+/** Makes sure SVM is disabled, if it is supported on the CPU
+ */
+static inline void cpu_emergency_svm_disable(void)
+{
+	if (cpu_has_svm(NULL))
+		cpu_svm_disable();
+}
+
 #endif /* _ASM_X86_VIRTEX_H */
-- 
1.5.5.GIT


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WARNING: multiple messages have this Message-ID (diff)
From: Eduardo Habkost <ehabkost@redhat.com>
To: Avi Kivity <avi@redhat.com>, Ingo Molnar <mingo@elte.hu>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	Simon Horman <horms@verge.net.au>, Andrew Morton <akpm@osdl.org>,
	Vivek Goyal <vgoyal@redhat.com>, Haren Myneni <hbabu@us.ibm.com>,
	Andrey Borzenkov <arvidjaar@mail.ru>,
	mingo@redhat.com, "Rafael J. Wysocki" <rjw@sisk.pl>,
	Zachary Amsden <zach@vmware.com>,
	kexec@lists.infradead.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Eduardo Habkost <ehabkost@redhat.com>
Subject: [PATCH 10/12] x86: cpu_emergency_svm_disable() function
Date: Mon, 17 Nov 2008 19:03:22 -0200	[thread overview]
Message-ID: <1226955804-16802-11-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1226955804-16802-1-git-send-email-ehabkost@redhat.com>

This function can be used by the reboot or kdump code to forcibly
disable SVM on the CPU.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 arch/x86/include/asm/virtext.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/virtext.h b/arch/x86/include/asm/virtext.h
index 2cfe363..5936362 100644
--- a/arch/x86/include/asm/virtext.h
+++ b/arch/x86/include/asm/virtext.h
@@ -121,4 +121,12 @@ static inline void cpu_svm_disable(void)
 	wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);
 }
 
+/** Makes sure SVM is disabled, if it is supported on the CPU
+ */
+static inline void cpu_emergency_svm_disable(void)
+{
+	if (cpu_has_svm(NULL))
+		cpu_svm_disable();
+}
+
 #endif /* _ASM_X86_VIRTEX_H */
-- 
1.5.5.GIT


WARNING: multiple messages have this Message-ID (diff)
From: Eduardo Habkost <ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Avi Kivity <avi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Cc: Andrew Morton <akpm-3NddpPZAyC0@public.gmane.org>,
	Zachary Amsden <zach-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>,
	Eduardo Habkost
	<ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
	Haren Myneni <hbabu-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
	Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>,
	"Eric W. Biederman"
	<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
	Andrey Borzenkov <arvidjaar-JGs/UdohzUI@public.gmane.org>,
	mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 10/12] x86: cpu_emergency_svm_disable() function
Date: Mon, 17 Nov 2008 19:03:22 -0200	[thread overview]
Message-ID: <1226955804-16802-11-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1226955804-16802-1-git-send-email-ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

This function can be used by the reboot or kdump code to forcibly
disable SVM on the CPU.

Signed-off-by: Eduardo Habkost <ehabkost-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 arch/x86/include/asm/virtext.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/virtext.h b/arch/x86/include/asm/virtext.h
index 2cfe363..5936362 100644
--- a/arch/x86/include/asm/virtext.h
+++ b/arch/x86/include/asm/virtext.h
@@ -121,4 +121,12 @@ static inline void cpu_svm_disable(void)
 	wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);
 }
 
+/** Makes sure SVM is disabled, if it is supported on the CPU
+ */
+static inline void cpu_emergency_svm_disable(void)
+{
+	if (cpu_has_svm(NULL))
+		cpu_svm_disable();
+}
+
 #endif /* _ASM_X86_VIRTEX_H */
-- 
1.5.5.GIT

  parent reply	other threads:[~2008-11-17 21:04 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-17 21:03 [PATCH 00/12] x86: disable virt on kdump and emergency_restart (v4) Eduardo Habkost
2008-11-17 21:03 ` Eduardo Habkost
2008-11-17 21:03 ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 01/12] kvm: vmx: move vmx.h to include/asm Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 02/12] kvm: svm: move svm.h " Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 03/12] kvm: vmx: move ASM_VMX_* definitions from asm/kvm_host.h to asm/vmx.h Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 04/12] kvm: vmx: move cpu_has_kvm_support() to an inline on asm/virtext.h Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 05/12] x86: asm/virtext.h: add cpu_vmxoff() inline function Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 06/12] kvm: vmx: extract kvm_cpu_vmxoff() from hardware_disable() Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 07/12] x86: cpu_emergency_vmxoff() function Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 08/12] kvm: svm: move has_svm() code to asm/virtext.h Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 09/12] kvm: svm: move svm_hardware_disable() " Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` Eduardo Habkost [this message]
2008-11-17 21:03   ` [PATCH 10/12] x86: cpu_emergency_svm_disable() function Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 11/12] kdump: forcibly disable VMX and SVM on machine_crash_shutdown() Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-17 21:03 ` [PATCH 12/12] x86: disable VMX on all CPUs on reboot Eduardo Habkost
2008-11-17 21:03   ` Eduardo Habkost
2008-11-18  8:15 ` [PATCH 00/12] x86: disable virt on kdump and emergency_restart (v4) Ingo Molnar
2008-11-18  8:15   ` Ingo Molnar
2008-11-18  8:15   ` Ingo Molnar
2008-11-21 16:07   ` Avi Kivity
2008-11-21 16:07     ` Avi Kivity
2008-11-21 16:07     ` Avi Kivity
2008-11-21 16:18     ` Ingo Molnar
2008-11-21 16:18       ` Ingo Molnar
2008-11-21 16:18       ` Ingo Molnar
2008-11-24 14:58     ` Eduardo Habkost
2008-11-24 14:58       ` Eduardo Habkost
2008-11-24 14:58       ` Eduardo Habkost

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