1 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 05efc4ef75a6..665008d97856 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -772,6 +772,15 @@ static void svm_get_segment(struct kvm_vcpu *vcpu,
         var->l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1;
         var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
         var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1;
+
+        /*
+         * SVM always stores 0 for the 'G' bit in the CS selector in
+         * the VMCB on a VMEXIT. This hurts cross-vendor migration:
+         * Intel's VMENTRY has a check on the 'G' bit.
+         */
+        if (seg == VCPU_SREG_CS)
+                var->g = s->limit > 0xfffff;
+
         var->unusable = !var->present;
 }