openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

KVM: x86 emulator: Use opcode::execute for PUSHA/POPA (60/61) 

For this, emulate_pusha/popa() are converted to em_pusha/popa().

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Takuya Yoshikawa 2011-04-23 18:51:07 +09:00 committed by Avi Kivity
parent c54fe50469
commit b96a7fad02
1 changed files with 5 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/x86/kvm/emulate.c
View File

@ -1473,7 +1473,7 @@ static int emulate_pop_sreg(struct x86_emulate_ctxt *ctxt,
return rc;
}
static int emulate_pusha(struct x86_emulate_ctxt *ctxt)
static int em_pusha(struct x86_emulate_ctxt *ctxt)
{
struct decode_cache *c = &ctxt->decode;
unsigned long old_esp = c->regs[VCPU_REGS_RSP];
@ -1494,8 +1494,7 @@ static int emulate_pusha(struct x86_emulate_ctxt *ctxt)
return rc;
}
static int emulate_popa(struct x86_emulate_ctxt *ctxt,
struct x86_emulate_ops *ops)
static int em_popa(struct x86_emulate_ctxt *ctxt)
{
struct decode_cache *c = &ctxt->decode;
int rc = X86EMUL_CONTINUE;
@ -1508,7 +1507,7 @@ static int emulate_popa(struct x86_emulate_ctxt *ctxt,
--reg;
}
rc = emulate_pop(ctxt, ops, &c->regs[reg], c->op_bytes);
rc = emulate_pop(ctxt, ctxt->ops, &c->regs[reg], c->op_bytes);
if (rc != X86EMUL_CONTINUE)
break;
--reg;
@ -3098,7 +3097,8 @@ static struct opcode opcode_table[256] = {
/* 0x58 - 0x5F */
X8(I(DstReg | Stack, em_pop)),
/* 0x60 - 0x67 */
D(ImplicitOps | Stack | No64), D(ImplicitOps | Stack | No64),
I(ImplicitOps | Stack | No64, em_pusha),
I(ImplicitOps | Stack | No64, em_popa),
N, D(DstReg | SrcMem32 | ModRM | Mov) /* movsxd (x86/64) */ ,
N, N, N, N,
/* 0x68 - 0x6F */
@ -3823,12 +3823,6 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
case 0x48 ... 0x4f: /* dec r16/r32 */
emulate_1op("dec", c->dst, ctxt->eflags);
break;
case 0x60: /* pusha */
rc = emulate_pusha(ctxt);
break;
case 0x61: /* popa */
rc = emulate_popa(ctxt, ops);
break;
case 0x63: /* movsxd */
if (ctxt->mode != X86EMUL_MODE_PROT64)
goto cannot_emulate;