From: Wei Yongjun <yjwei@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>, kvm@vger.kernel.org
Subject: [PATCH 1/4] KVM: x86 emulator: use SrcAcc to simplify stos decoding
Date: Wed, 04 Aug 2010 15:36:53 +0800 [thread overview]
Message-ID: <4C591895.5040505@cn.fujitsu.com> (raw)
Use SrcAcc to simplify stos decoding.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
---
arch/x86/kvm/emulate.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index f03ff26..4624b11 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2175,7 +2175,8 @@ static struct opcode opcode_table[256] = {
D(ByteOp | SrcSI | DstDI | Mov | String), D(SrcSI | DstDI | Mov | String),
D(ByteOp | SrcSI | DstDI | String), D(SrcSI | DstDI | String),
/* 0xA8 - 0xAF */
- D(DstAcc | SrcImmByte | ByteOp), D(DstAcc | SrcImm), D(ByteOp | DstDI | Mov | String), D(DstDI | Mov | String),
+ D(DstAcc | SrcImmByte | ByteOp), D(DstAcc | SrcImm),
+ D(ByteOp | SrcAcc | DstDI | Mov | String), D(SrcAcc | DstDI | Mov | String),
D(ByteOp | SrcSI | DstAcc | Mov | String), D(SrcSI | DstAcc | Mov | String),
D(ByteOp | DstDI | String), D(DstDI | String),
/* 0xB0 - 0xB7 */
@@ -2937,8 +2938,6 @@ special_insn:
case 0xa8 ... 0xa9: /* test ax, imm */
goto test;
case 0xaa ... 0xab: /* stos */
- c->dst.val = c->regs[VCPU_REGS_RAX];
- break;
case 0xac ... 0xad: /* lods */
goto mov;
case 0xae ... 0xaf: /* scas */
--
1.7.0.4
next reply other threads:[~2010-08-04 7:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-04 7:36 Wei Yongjun [this message]
2010-08-04 7:38 ` [PATCH 2/4] KVM: x86 emulator: disable writeback when decode dest operand Wei Yongjun
2010-08-04 7:38 ` [PATCH 3/4] KVM: x86 emulator: using SrcOne for instruction d0/d1 decoding Wei Yongjun
2010-08-05 9:38 ` Avi Kivity
2010-08-04 7:40 ` [PATCH 4/4] KVM: x86 emulator: remove dup code of in/out instruction Wei Yongjun
2010-08-05 9:37 ` Avi Kivity
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