diff options
Diffstat (limited to 'drivers/kvm/x86_emulate.c')
| -rw-r--r-- | drivers/kvm/x86_emulate.c | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 44eb28d31499..d553719fc4cb 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -103,9 +103,12 @@ static u8 opcode_table[256] = { /* 0x58 - 0x5F */ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, - /* 0x60 - 0x6F */ + /* 0x60 - 0x6B */ 0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ , - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + /* 0x6C - 0x6F */ + SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* insb, insw/insd */ + SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* outsb, outsw/outsd */ /* 0x70 - 0x7F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 - 0x87 */ @@ -428,10 +431,11 @@ struct operand { }) /* Access/update address held in a register, based on addressing mode. */ +#define address_mask(reg) \ + ((ad_bytes == sizeof(unsigned long)) ? \ + (reg) : ((reg) & ((1UL << (ad_bytes << 3)) - 1))) #define register_address(base, reg) \ - ((base) + ((ad_bytes == sizeof(unsigned long)) ? (reg) : \ - ((reg) & ((1UL << (ad_bytes << 3)) - 1)))) - + ((base) + address_mask(reg)) #define register_address_increment(reg, inc) \ do { \ /* signed type ensures sign extension to long */ \ @@ -1116,6 +1120,41 @@ done: special_insn: if (twobyte) goto twobyte_special_insn; + switch(b) { + case 0x6c: /* insb */ + case 0x6d: /* insw/insd */ + if (kvm_setup_pio(ctxt->vcpu, NULL, + 1, /* in */ + (d & ByteOp) ? 1 : op_bytes, /* size */ + rep_prefix ? + address_mask(_regs[VCPU_REGS_RCX]) : 1, /* count */ + 1, /* strings */ + (_eflags & EFLG_DF), /* down */ + register_address(ctxt->es_base, + _regs[VCPU_REGS_RDI]), /* address */ + rep_prefix, + _regs[VCPU_REGS_RDX] /* port */ + ) == 0) + return -1; + return 0; + case 0x6e: /* outsb */ + case 0x6f: /* outsw/outsd */ + if (kvm_setup_pio(ctxt->vcpu, NULL, + 0, /* in */ + (d & ByteOp) ? 1 : op_bytes, /* size */ + rep_prefix ? + address_mask(_regs[VCPU_REGS_RCX]) : 1, /* count */ + 1, /* strings */ + (_eflags & EFLG_DF), /* down */ + register_address(override_base ? + *override_base : ctxt->ds_base, + _regs[VCPU_REGS_RSI]), /* address */ + rep_prefix, + _regs[VCPU_REGS_RDX] /* port */ + ) == 0) + return -1; + return 0; + } if (rep_prefix) { if (_regs[VCPU_REGS_RCX] == 0) { ctxt->vcpu->rip = _eip; |