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| author | Avi Kivity <avi@redhat.com> | 2011-09-07 16:41:36 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-09-25 19:52:33 +0300 |
| commit | 761441b9f42159409d56f74dcc7ce5538d9efd69 (patch) | |
| tree | 33f143f22a38465f7b99ac95194eb86f914ef32d /arch/x86/kvm/emulate.c | |
| parent | a31b9ceadb61487042dec92f662736ccddadc75f (diff) | |
| download | linux-rt-761441b9f42159409d56f74dcc7ce5538d9efd69.tar.gz | |
KVM: x86 emulator: simplify emulate_2op_cl()
emulate_2op_cl() 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>
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 458914d0f4b0..0b338849c689 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -263,40 +263,37 @@ struct gprefix { __emulate_2op_nobyte(ctxt, _op, "w", "r", _LO32, "r", "", "r") /* Instruction has three operands and one operand is stored in ECX register */ -#define __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, _suffix, _type) \ +#define __emulate_2op_cl(_op, ctxt, _suffix, _type) \ do { \ unsigned long _tmp; \ - _type _clv = (_cl).val; \ - _type _srcv = (_src).val; \ - _type _dstv = (_dst).val; \ + _type _clv = (ctxt)->src2.val; \ + _type _srcv = (ctxt)->src.val; \ + _type _dstv = (ctxt)->dst.val; \ \ __asm__ __volatile__ ( \ _PRE_EFLAGS("0", "5", "2") \ _op _suffix " %4,%1 \n" \ _POST_EFLAGS("0", "5", "2") \ - : "=m" (_eflags), "+r" (_dstv), "=&r" (_tmp) \ + : "=m" ((ctxt)->eflags), "+r" (_dstv), "=&r" (_tmp) \ : "c" (_clv) , "r" (_srcv), "i" (EFLAGS_MASK) \ ); \ \ - (_cl).val = (unsigned long) _clv; \ - (_src).val = (unsigned long) _srcv; \ - (_dst).val = (unsigned long) _dstv; \ + (ctxt)->src2.val = (unsigned long) _clv; \ + (ctxt)->src2.val = (unsigned long) _srcv; \ + (ctxt)->dst.val = (unsigned long) _dstv; \ } while (0) -#define emulate_2op_cl(_op, _cl, _src, _dst, _eflags) \ +#define emulate_2op_cl(ctxt, _op) \ do { \ - switch ((_dst).bytes) { \ + switch ((ctxt)->dst.bytes) { \ case 2: \ - __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \ - "w", unsigned short); \ + __emulate_2op_cl(_op, ctxt, "w", u16); \ break; \ case 4: \ - __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \ - "l", unsigned int); \ + __emulate_2op_cl(_op, ctxt, "l", u32); \ break; \ case 8: \ - ON64(__emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \ - "q", unsigned long)); \ + ON64(__emulate_2op_cl(_op, ctxt, "q", ulong)); \ break; \ } \ } while (0) @@ -4123,7 +4120,7 @@ twobyte_insn: break; case 0xa4: /* shld imm8, r, r/m */ case 0xa5: /* shld cl, r, r/m */ - emulate_2op_cl("shld", ctxt->src2, ctxt->src, ctxt->dst, ctxt->eflags); + emulate_2op_cl(ctxt, "shld"); break; case 0xa8: /* push gs */ rc = emulate_push_sreg(ctxt, VCPU_SREG_GS); @@ -4137,7 +4134,7 @@ twobyte_insn: break; case 0xac: /* shrd imm8, r, r/m */ case 0xad: /* shrd cl, r, r/m */ - emulate_2op_cl("shrd", ctxt->src2, ctxt->src, ctxt->dst, ctxt->eflags); + emulate_2op_cl(ctxt, "shrd"); break; case 0xae: /* clflush */ break; |