KVM: x86 emulator: fix 0f 01 /5 emulation

It is undefined and should generate #UD. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
git-mirror · May 17, 2010 · 6e1e5ff · 6e1e5ff
1 parent 5e3ae6c
commit 6e1e5ff
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
@@ -2490,6 +2490,9 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
 				    (c->src.val & 0x0f), ctxt->vcpu);
 			c->dst.type = OP_NONE;
 			break;
+		case 5: /* not defined */
+			kvm_queue_exception(ctxt->vcpu, UD_VECTOR);
+			goto done;
 		case 7: /* invlpg*/
 			emulate_invlpg(ctxt->vcpu, memop);
 			/* Disable writeback. */