KVM: x86 emulator: popf

Implement emulation of instruction:
    popf
    opcode:  0x9d

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 7360a71094f57cdb3b44fb36cf1e7a9c18833309..9737c3b2f48c1a2006cd6420ce192f04a323c7e3 100644 (file)
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -127,7 +127,7 @@ static u8 opcode_table[256] = {
        ByteOp | DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
        0, ModRM | DstReg, 0, DstMem | SrcNone | ModRM | Mov,
        /* 0x90 - 0x9F */
-       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps, ImplicitOps, 0, 0,
        /* 0xA0 - 0xA7 */
        ByteOp | DstReg | SrcMem | Mov, DstReg | SrcMem | Mov,
        ByteOp | DstMem | SrcReg | Mov, DstMem | SrcReg | Mov,
@@ -1293,6 +1293,9 @@ special_insn:
        case 0x9c: /* pushf */
                src.val =  (unsigned long) _eflags;
                goto push;
+       case 0x9d: /* popf */
+               dst.ptr = (unsigned long *) &_eflags;
+               goto pop_instruction;
        case 0xc3: /* ret */
                dst.ptr = &_eip;
                goto pop_instruction;