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KVM: x86 emulator: use struct operand for mov reg,cr and mov cr,reg for reg op

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This is an ordinary modrm source or destination; use the standard structure
representing it.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2010-08-01 14:25:22 +03:00
parent cecc9e3916
commit 1a0c7d44e4
1 changed files with 4 additions and 5 deletions
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9
arch/x86/kvm/emulate.c
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@ -2210,8 +2210,8 @@ static struct opcode twobyte_table[256] = {
/* 0x10 - 0x1F */
N, N, N, N, N, N, N, N, D(ImplicitOps | ModRM), N, N, N, N, N, N, N,
/* 0x20 - 0x2F */
D(ModRM | ImplicitOps | Priv | Op3264), D(ModRM | Priv | Op3264),
D(ModRM | ImplicitOps | Priv | Op3264), D(ModRM | Priv | Op3264),
D(ModRM | DstMem | Priv | Op3264), D(ModRM | Priv | Op3264),
D(ModRM | SrcMem | Priv | Op3264), D(ModRM | Priv | Op3264),
N, N, N, N,
N, N, N, N, N, N, N, N,
/* 0x30 - 0x3F */
@ -3240,8 +3240,7 @@ twobyte_insn:
emulate_ud(ctxt);
goto done;
}
c->regs[c->modrm_rm] = ops->get_cr(c->modrm_reg, ctxt->vcpu);
c->dst.type = OP_NONE; /* no writeback */
c->dst.val = ops->get_cr(c->modrm_reg, ctxt->vcpu);
break;
case 0x21: /* mov from dr to reg */
if ((ops->get_cr(4, ctxt->vcpu) & X86_CR4_DE) &&
@ -3253,7 +3252,7 @@ twobyte_insn:
c->dst.type = OP_NONE; /* no writeback */
break;
case 0x22: /* mov reg, cr */
if (ops->set_cr(c->modrm_reg, c->modrm_val, ctxt->vcpu)) {
if (ops->set_cr(c->modrm_reg, c->src.val, ctxt->vcpu)) {
emulate_gp(ctxt, 0);
goto done;
}