Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b284be576471b1521dd04c0845beedb790cbb9d7
Commit:     b284be576471b1521dd04c0845beedb790cbb9d7
Parent:     42bf3f0a1f5a25be26e6bb53162cdee82410310d
Author:     Nitin A Kamble <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 16 18:23:27 2007 -0700
Committer:  Avi Kivity <[EMAIL PROTECTED]>
CommitDate: Wed Jan 30 17:52:53 2008 +0200

    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 <[EMAIL PROTECTED]>
    Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
 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 988c649..e962de3 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) {
-
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