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-rw-r--r--arch/x86/kvm/svm.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 1821c2078199..9184e32778ab 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -796,6 +796,11 @@ static void svm_get_segment(struct kvm_vcpu *vcpu,
var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1;
+ /* AMD's VMCB does not have an explicit unusable field, so emulate it
+ * for cross vendor migration purposes by "not present"
+ */
+ var->unusable = !var->present || (var->type == 0);
+
switch (seg) {
case VCPU_SREG_CS:
/*
@@ -827,8 +832,6 @@ static void svm_get_segment(struct kvm_vcpu *vcpu,
var->type |= 0x1;
break;
}
-
- var->unusable = !var->present;
}
static int svm_get_cpl(struct kvm_vcpu *vcpu)