KVM: x86 emulator: simplify emulate_1op()
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>
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 14b2791..5b4e1d4 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -298,7 +298,7 @@
} \
} while (0)
-#define __emulate_1op(_op, _dst, _eflags, _suffix) \
+#define __emulate_1op(ctxt, _op, _suffix) \
do { \
unsigned long _tmp; \
\
@@ -306,19 +306,19 @@
_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 @@
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 @@
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 @@
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)