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Commit 89c69638 authored by Guillaume Thouvenin's avatar Guillaume Thouvenin Committed by Avi Kivity
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KVM: x86 emulator: Update c->dst.bytes in decode instruction 



Update c->dst.bytes in decode instruction instead of instruction
itself.  It's needed because if c->dst.bytes is equal to 0, the
instruction is not emulated.

Signed-off-by: default avatarGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: default avatarLaurent Vivier <laurent.vivier@bull.net>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 3e6e0aab

arch/x86/kvm/x86_emulate.c

+1 −0
Original line number Diff line number Diff line
@@ -1049,6 +1049,7 @@ x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) 
		break;

	case DstMem:

		if ((c->d & ModRM) && c->modrm_mod == 3) {

			c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes;

			c->dst.type = OP_REG;

			c->dst.val = c->dst.orig_val = c->modrm_val;

			c->dst.ptr = c->modrm_ptr;