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KVM: x86 emulator: simplify emulate_1op()

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emulate_1op() is always called with the same parameters.  Simplify
by passing just the emulation context.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Avi Kivity 2011-09-07 16:41:38 +03:00
parent 29053a60d7
commit d1eef45d59
1 changed files with 13 additions and 13 deletions
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26
arch/x86/kvm/emulate.c
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@ -298,7 +298,7 @@ struct gprefix {
} \
} while (0)
#define __emulate_1op(_op, _dst, _eflags, _suffix) \
#define __emulate_1op(ctxt, _op, _suffix) \
do { \
unsigned long _tmp; \
\
@ -306,19 +306,19 @@ struct gprefix {
_PRE_EFLAGS("0", "3", "2") \
_op _suffix " %1; " \
_POST_EFLAGS("0", "3", "2") \
: "=m" (_eflags), "+m" ((_dst).val), \
: "=m" ((ctxt)->eflags), "+m" ((ctxt)->dst.val), \
"=&r" (_tmp) \
: "i" (EFLAGS_MASK)); \
} while (0)
/* Instruction has only one explicit operand (no source operand). */
#define emulate_1op(_op, _dst, _eflags) \
#define emulate_1op(ctxt, _op) \
do { \
switch ((_dst).bytes) { \
case 1: __emulate_1op(_op, _dst, _eflags, "b"); break; \
case 2: __emulate_1op(_op, _dst, _eflags, "w"); break; \
case 4: __emulate_1op(_op, _dst, _eflags, "l"); break; \
case 8: ON64(__emulate_1op(_op, _dst, _eflags, "q")); break; \
switch ((ctxt)->dst.bytes) { \
case 1: __emulate_1op(ctxt, _op, "b"); break; \
case 2: __emulate_1op(ctxt, _op, "w"); break; \
case 4: __emulate_1op(ctxt, _op, "l"); break; \
case 8: ON64(__emulate_1op(ctxt, _op, "q")); break; \
} \
} while (0)
@ -1715,7 +1715,7 @@ static int em_grp3(struct x86_emulate_ctxt *ctxt)
ctxt->dst.val = ~ctxt->dst.val;
break;
case 3: /* neg */
emulate_1op("neg", ctxt->dst, ctxt->eflags);
emulate_1op(ctxt, "neg");
break;
case 4: /* mul */
emulate_1op_rax_rdx("mul", ctxt->src, *rax, *rdx, ctxt->eflags);
@ -1745,10 +1745,10 @@ static int em_grp45(struct x86_emulate_ctxt *ctxt)
switch (ctxt->modrm_reg) {
case 0: /* inc */
emulate_1op("inc", ctxt->dst, ctxt->eflags);
emulate_1op(ctxt, "inc");
break;
case 1: /* dec */
emulate_1op("dec", ctxt->dst, ctxt->eflags);
emulate_1op(ctxt, "dec");
break;
case 2: /* call near abs */ {
long int old_eip;
@ -3849,10 +3849,10 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
rc = emulate_pop_sreg(ctxt, VCPU_SREG_DS);
break;
case 0x40 ... 0x47: /* inc r16/r32 */
emulate_1op("inc", ctxt->dst, ctxt->eflags);
emulate_1op(ctxt, "inc");
break;
case 0x48 ... 0x4f: /* dec r16/r32 */
emulate_1op("dec", ctxt->dst, ctxt->eflags);
emulate_1op(ctxt, "dec");
break;
case 0x63: /* movsxd */
if (ctxt->mode != X86EMUL_MODE_PROT64)