diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/x86_emulate.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c index 0c75306e7a07..9ae6d5b3e962 100644 --- a/arch/x86/kvm/x86_emulate.c +++ b/arch/x86/kvm/x86_emulate.c @@ -431,6 +431,45 @@ static u32 group2_table[] = { __emulate_2op_nobyte(_op, _src, _dst, _eflags, \ "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) \ + do { \ + unsigned long _tmp; \ + _type _clv = (_cl).val; \ + _type _srcv = (_src).val; \ + _type _dstv = (_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) \ + : "c" (_clv) , "r" (_srcv), "i" (EFLAGS_MASK) \ + ); \ + \ + (_cl).val = (unsigned long) _clv; \ + (_src).val = (unsigned long) _srcv; \ + (_dst).val = (unsigned long) _dstv; \ + } while (0) + +#define emulate_2op_cl(_op, _cl, _src, _dst, _eflags) \ + do { \ + switch ((_dst).bytes) { \ + case 2: \ + __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \ + "w", unsigned short); \ + break; \ + case 4: \ + __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \ + "l", unsigned int); \ + break; \ + case 8: \ + ON64(__emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \ + "q", unsigned long)); \ + break; \ + } \ + } while (0) + #define __emulate_1op(_op, _dst, _eflags, _suffix) \ do { \ unsigned long _tmp; \ |