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| author | Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> | 2011-11-23 12:27:39 +0900 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-12-27 11:17:46 +0200 |
| commit | 2b5e97e1fadf1ade87558f2a2003616879f9e228 (patch) | |
| tree | 31a7b6eed647cee35de6e3e7cc90f98b47f2a300 | |
| parent | d77fe6354d5b67f4d4eb62a47621da2b3ee3539e (diff) | |
| download | op-kernel-dev-2b5e97e1fadf1ade87558f2a2003616879f9e228.zip op-kernel-dev-2b5e97e1fadf1ade87558f2a2003616879f9e228.tar.gz | |
KVM: x86 emulator: Use opcode::execute for INS/OUTS from/to port in DX
INSB : 6C
INSW/INSD : 6D
OUTSB : 6E
OUTSW/OUTSD: 6F
The I/O port address is read from the DX register when we decode the
operand because we see the SrcDX/DstDX flag is set.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/emulate.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 4cd3313..ac8e5ed 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -3321,8 +3321,8 @@ static struct opcode opcode_table[256] = { I(DstReg | SrcMem | ModRM | Src2Imm, em_imul_3op), I(SrcImmByte | Mov | Stack, em_push), I(DstReg | SrcMem | ModRM | Src2ImmByte, em_imul_3op), - D2bvIP(DstDI | SrcDX | Mov | String, ins, check_perm_in), /* insb, insw/insd */ - D2bvIP(SrcSI | DstDX | String, outs, check_perm_out), /* outsb, outsw/outsd */ + I2bvIP(DstDI | SrcDX | Mov | String, em_in, ins, check_perm_in), /* insb, insw/insd */ + I2bvIP(SrcSI | DstDX | String, em_out, outs, check_perm_out), /* outsb, outsw/outsd */ /* 0x70 - 0x7F */ X16(D(SrcImmByte)), /* 0x80 - 0x87 */ @@ -4027,16 +4027,6 @@ special_insn: goto cannot_emulate; ctxt->dst.val = (s32) ctxt->src.val; break; - case 0x6c: /* insb */ - case 0x6d: /* insw/insd */ - ctxt->src.val = ctxt->regs[VCPU_REGS_RDX]; - rc = em_in(ctxt); - break; - case 0x6e: /* outsb */ - case 0x6f: /* outsw/outsd */ - ctxt->dst.val = ctxt->regs[VCPU_REGS_RDX]; - rc = em_out(ctxt); - break; case 0x70 ... 0x7f: /* jcc (short) */ if (test_cc(ctxt->b, ctxt->eflags)) jmp_rel(ctxt, ctxt->src.val); |
