From: Wei Yongjun <yjwei@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org
Subject: [PATCH 2/3] KVM: x86 emulator: change OUT instruction to use dst instead of src
Date: Fri, 06 Aug 2010 11:45:12 +0800 [thread overview]
Message-ID: <4C5B8548.2060709@cn.fujitsu.com> (raw)
In-Reply-To: <4C5B8353.1090904@cn.fujitsu.com>
Change OUT instruction to use dst instead of src, so we can
reuse those code for all out instructions.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
---
arch/x86/kvm/emulate.c | 15 ++++++++-------
1 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index f952fd0..95815b9 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2261,12 +2261,12 @@ static struct opcode opcode_table[256] = {
/* 0xE0 - 0xE7 */
N, N, N, N,
D(ByteOp | SrcImmUByte | DstAcc), D(SrcImmUByte | DstAcc),
- D(ByteOp | SrcImmUByte | DstAcc), D(SrcImmUByte | DstAcc),
+ D(ByteOp | SrcAcc | DstImmUByte), D(SrcAcc | DstImmUByte),
/* 0xE8 - 0xEF */
D(SrcImm | Stack), D(SrcImm | ImplicitOps),
D(SrcImmFAddr | No64), D(SrcImmByte | ImplicitOps),
D(SrcNone | ByteOp | DstAcc), D(SrcNone | DstAcc),
- D(SrcNone | ByteOp | DstAcc), D(SrcNone | DstAcc),
+ D(ByteOp | SrcAcc | ImplicitOps), D(SrcAcc | ImplicitOps),
/* 0xF0 - 0xF7 */
N, N, N, N,
D(ImplicitOps | Priv), D(ImplicitOps), G(ByteOp, group3), G(0, group3),
@@ -3107,15 +3107,16 @@ special_insn:
break;
case 0xee: /* out dx,al */
case 0xef: /* out dx,(e/r)ax */
- c->src.val = c->regs[VCPU_REGS_RDX];
+ c->dst.val = c->regs[VCPU_REGS_RDX];
do_io_out:
- c->dst.bytes = min(c->dst.bytes, 4u);
- if (!emulator_io_permited(ctxt, ops, c->src.val, c->dst.bytes)) {
+ c->src.bytes = min(c->src.bytes, 4u);
+ if (!emulator_io_permited(ctxt, ops, c->dst.val,
+ c->src.bytes)) {
emulate_gp(ctxt, 0);
goto done;
}
- ops->pio_out_emulated(c->dst.bytes, c->src.val, &c->dst.val, 1,
- ctxt->vcpu);
+ ops->pio_out_emulated(c->src.bytes, c->dst.val,
+ &c->src.val, 1, ctxt->vcpu);
c->dst.type = OP_NONE; /* Disable writeback. */
break;
case 0xf4: /* hlt */
--
1.7.0.4
next prev parent reply other threads:[~2010-08-06 3:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-06 3:36 [PATCH 1/3] KVM: x86 emulator: introduce DstImmUByte for dst operand decode Wei Yongjun
2010-08-06 3:45 ` Wei Yongjun [this message]
2010-08-06 3:46 ` [PATCH 3/3] KVM: x86 emulator: remove dup code of in/out instruction Wei Yongjun
2010-08-17 9:44 ` [PATCH 1/3] KVM: x86 emulator: introduce DstImmUByte for dst operand decode Avi Kivity
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