From: Avi Kivity <avi@qumranet.com>
Date: Mon, 12 Feb 2007 08:54:36 +0000 (-0800)
Subject: [PATCH] kvm: vmx: handle triple faults by returning EXIT_REASON_SHUTDOWN to userspace
X-Git-Tag: upstream/snapshot3+hdmi~35810^2~66
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=988ad74ff6107d9a490ee193e41251e27d37c95f;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

[PATCH] kvm: vmx: handle triple faults by returning EXIT_REASON_SHUTDOWN to userspace

Just like svm.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 5cc1a6e..e152caa 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1375,6 +1375,11 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu,
 	return 1;
 }
 
+static int handle_triple_fault(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+	kvm_run->exit_reason = KVM_EXIT_SHUTDOWN;
+	return 0;
+}
 
 static int get_io_count(struct kvm_vcpu *vcpu, u64 *count)
 {
@@ -1635,6 +1640,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu,
 				      struct kvm_run *kvm_run) = {
 	[EXIT_REASON_EXCEPTION_NMI]           = handle_exception,
 	[EXIT_REASON_EXTERNAL_INTERRUPT]      = handle_external_interrupt,
+	[EXIT_REASON_TRIPLE_FAULT]            = handle_triple_fault,
 	[EXIT_REASON_IO_INSTRUCTION]          = handle_io,
 	[EXIT_REASON_CR_ACCESS]               = handle_cr,
 	[EXIT_REASON_DR_ACCESS]               = handle_dr,
diff --git a/drivers/kvm/vmx.h b/drivers/kvm/vmx.h
index 4c0ab15..d0dc93d 100644
--- a/drivers/kvm/vmx.h
+++ b/drivers/kvm/vmx.h
@@ -180,6 +180,7 @@ enum vmcs_field {
 
 #define EXIT_REASON_EXCEPTION_NMI       0
 #define EXIT_REASON_EXTERNAL_INTERRUPT  1
+#define EXIT_REASON_TRIPLE_FAULT        2
 
 #define EXIT_REASON_PENDING_INTERRUPT   7