diff options
| author | Nitin A Kamble <nitin.a.kamble@intel.com> | 2007-08-19 11:07:06 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-10-13 10:18:24 +0200 |
| commit | 7e778161fb4612d2ceac9604f10e1061f5f4cf48 (patch) | |
| tree | f669f337eba6f18e4aded150caa7979ff9326659 /drivers | |
| parent | c53ce170a9e8531f293e402c7d8c65e38452a551 (diff) | |
KVM: x86 emulator: implement 'push reg' (opcodes 0x50-0x57)
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/kvm/x86_emulate.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 1036e0224aa..cf895aab51d 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -99,7 +99,8 @@ static u8 opcode_table[256] = { /* 0x40 - 0x4F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 - 0x57 */ - 0, 0, 0, 0, 0, 0, 0, 0, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, /* 0x58 - 0x5F */ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, @@ -1151,6 +1152,19 @@ special_insn: if (twobyte) goto twobyte_special_insn; switch(b) { + case 0x50 ... 0x57: /* push reg */ + if (op_bytes == 2) + src.val = (u16) _regs[b & 0x7]; + else + src.val = (u32) _regs[b & 0x7]; + dst.type = OP_MEM; + dst.bytes = op_bytes; + dst.val = src.val; + register_address_increment(_regs[VCPU_REGS_RSP], -op_bytes); + dst.ptr = (void *) register_address( + ctxt->ss_base, _regs[VCPU_REGS_RSP]); + no_wb = 1; /* force writeback */ + break; case 0x6c: /* insb */ case 0x6d: /* insw/insd */ if (kvm_emulate_pio_string(ctxt->vcpu, NULL, |