KVM: x86 emulator: fix faulty check for two-byte opcode

Right now, the bug is harmless as we never emulate one-byte 0xb6 or 0xb7.
But things may change.

Noted by the mysterious Gabriel C.

Signed-off-by: Avi Kivity <avi@qumranet.com>

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 82b4ea62c982c9f2f884ea0f7f6b9d106ad66e91..ef7518a2d7ac7a19531e22e2b42d2df176fd71dc 100644 (file)
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -819,7 +819,7 @@ done_prefixes:
        case DstReg:
                dst.type = OP_REG;
                if ((d & ByteOp)
-                   && !(twobyte_table && (b == 0xb6 || b == 0xb7))) {
+                   && !(twobyte && (b == 0xb6 || b == 0xb7))) {
                        dst.ptr = decode_register(modrm_reg, _regs,
                                                  (rex_prefix == 0));
                        dst.val = *(u8 *) dst.ptr;