1 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 63503782935..e3ea98290f9 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -803,6 +803,15 @@ static void svm_get_segment(struct kvm_vcpu *vcpu,
                 if (!var->unusable)
                         var->type |= 0x1;
                 break;
+        case VCPU_SREG_SS:
+                /* On AMD CPUs sometimes the DB bit in the segment
+                 * descriptor is left as 1, although the whole segment has
+                 * been made unusable. Clear it here to pass an Intel VMX
+                 * entry check when cross vendor migrating.
+                 */
+                if (var->unusable)
+                        var->db = 0;
+                break;
         }
 }