Commit 5217973e authored Sep 13, 2011 by Avi Kivity

KVM: x86 emulator: qualify OpReg inhibit_byte_regs hack



OpReg decoding has a hack that inhibits byte registers for movsx and movzx
instructions.  It should be replaced by something better, but meanwhile,
qualify that the hack is only active for the destination operand.

Note these instructions only use OpReg for the destination, but better to
be explicit about it.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

parent 608aabe3

arch/x86/kvm/emulate.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -3346,6 +3346,7 @@ static int decode_operand(struct x86_emulate_ctxt ctxt, struct operand op,
		switch (d) {
		case OpReg:
		decode_register_operand(ctxt, op,
		op == &ctxt->dst &&
		ctxt->twobyte && (ctxt->b == 0xb6 \|\| ctxt->b == 0xb7));
		break;
		case OpImmUByte:

Admin message