[PATCH 4/11] KVM: vmx: handle triple faults by returning EXIT_REASON_SHUTDOWN to userspace

Avi Kivity
2007-01-30T14:40:00Z

Just like svm.

Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>

Index: linux-2.6/drivers/kvm/vmx.c
===================================================================
--- linux-2.6.orig/drivers/kvm/vmx.c
+++ linux-2.6/drivers/kvm/vmx.c
@@ -1373,6 +1373,11 @@ static int handle_external_interrupt(str
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)
{
@@ -1633,6 +1638,7 @@ static int (*kvm_vmx_exit_handlers[])(st
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,
Index: linux-2.6/drivers/kvm/vmx.h
===================================================================
--- linux-2.6.orig/drivers/kvm/vmx.h
+++ linux-2.6/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