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authorAmit Shah <amit.shah@redhat.com>2008-10-27 09:04:18 +0000
committerAvi Kivity <avi@redhat.com>2008-12-31 16:51:48 +0200
commitc0d09828c870f90c6bc72070ada281568f89c63b (patch)
tree84964d81972066b33496f9c2105f2b338d369dae /arch
parent25022acc3dd5f0b54071c7ba7c371860f2971b52 (diff)
KVM: SVM: Set the 'busy' flag of the TR selector
The busy flag of the TR selector is not set by the hardware. This breaks migration from amd hosts to intel hosts. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/svm.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 665008d9785..743aebd7bfc 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -781,6 +781,13 @@ static void svm_get_segment(struct kvm_vcpu *vcpu,
if (seg == VCPU_SREG_CS)
var->g = s->limit > 0xfffff;
+ /*
+ * Work around a bug where the busy flag in the tr selector
+ * isn't exposed
+ */
+ if (seg == VCPU_SREG_TR)
+ var->type |= 0x2;
+
var->unusable = !var->present;
}