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-rw-r--r--arch/x86/kvm/emulate.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index c280c23..2db760f 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2126,6 +2126,12 @@ special_insn:
int err;
sel = c->src.val;
+
+ if (c->modrm_reg == VCPU_SREG_CS) {
+ kvm_queue_exception(ctxt->vcpu, UD_VECTOR);
+ goto done;
+ }
+
if (c->modrm_reg == VCPU_SREG_SS)
toggle_interruptibility(ctxt, X86_SHADOW_INT_MOV_SS);