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| author | Nitin A Kamble <nitin.a.kamble@intel.com> | 2007-10-17 03:23:27 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 16:52:53 +0100 |
| commit | b284be576471b1521dd04c0845beedb790cbb9d7 (patch) | |
| tree | 12449fe425d72c15d2664956cd8a718e9429d44f | |
| parent | KVM: MMU: Simplify page table walker (diff) | |
| download | linux-b284be576471b1521dd04c0845beedb790cbb9d7.tar.xz linux-b284be576471b1521dd04c0845beedb790cbb9d7.zip | |
KVM: x86 emulator: cmc, clc, cli, sti
Instruction: cmc, clc, cli, sti
opcodes: 0xf5, 0xf8, 0xfa, 0xfb respectively.
[avi: fix reference to EFLG_IF which is not defined anywhere]
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | drivers/kvm/x86_emulate.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 988c6498640f..e962de331606 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -161,10 +161,10 @@ static u8 opcode_table[256] = { ImplicitOps, SrcImm|ImplicitOps, 0, SrcImmByte|ImplicitOps, 0, 0, 0, 0, /* 0xF0 - 0xF7 */ 0, 0, 0, 0, - ImplicitOps, 0, + ImplicitOps, ImplicitOps, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM, /* 0xF8 - 0xFF */ - 0, 0, 0, 0, + ImplicitOps, 0, ImplicitOps, ImplicitOps, 0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM }; @@ -1476,6 +1476,23 @@ special_insn: case 0xf4: /* hlt */ ctxt->vcpu->halt_request = 1; goto done; + case 0xf5: /* cmc */ + /* complement carry flag from eflags reg */ + ctxt->eflags ^= EFLG_CF; + c->dst.type = OP_NONE; /* Disable writeback. */ + break; + case 0xf8: /* clc */ + ctxt->eflags &= ~EFLG_CF; + c->dst.type = OP_NONE; /* Disable writeback. */ + break; + case 0xfa: /* cli */ + ctxt->eflags &= ~X86_EFLAGS_IF; + c->dst.type = OP_NONE; /* Disable writeback. */ + break; + case 0xfb: /* sti */ + ctxt->eflags |= X86_EFLAGS_IF; + c->dst.type = OP_NONE; /* Disable writeback. */ + break; } if (c->rep_prefix) { if (c->regs[VCPU_REGS_RCX] == 0) { |