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    Subject[PATCH 10/20] KVM: x86 emulator: Add group8 instruction decoding
    Date
    From: Gleb Natapov <gleb@redhat.com>

    Use groups mechanism to decode 0F BA instructions.

    Signed-off-by: Gleb Natapov <gleb@redhat.com>
    Cc: stable@kernel.org
    Signed-off-by: Avi Kivity <avi@redhat.com>
    ---
    arch/x86/kvm/emulate.c | 7 ++++++-
    1 files changed, 6 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
    index 645b245..435b1e4 100644
    --- a/arch/x86/kvm/emulate.c
    +++ b/arch/x86/kvm/emulate.c
    @@ -88,6 +88,7 @@
    enum {
    Group1_80, Group1_81, Group1_82, Group1_83,
    Group1A, Group3_Byte, Group3, Group4, Group5, Group7,
    + Group8,
    };

    static u32 opcode_table[256] = {
    @@ -267,7 +268,7 @@ static u32 twobyte_table[256] = {
    0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
    DstReg | SrcMem16 | ModRM | Mov,
    /* 0xB8 - 0xBF */
    - 0, 0, DstMem | SrcImmByte | ModRM, DstMem | SrcReg | ModRM | BitOp,
    + 0, 0, Group | Group8, DstMem | SrcReg | ModRM | BitOp,
    0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
    DstReg | SrcMem16 | ModRM | Mov,
    /* 0xC0 - 0xCF */
    @@ -323,6 +324,10 @@ static u32 group_table[] = {
    0, 0, ModRM | SrcMem, ModRM | SrcMem,
    SrcNone | ModRM | DstMem | Mov, 0,
    SrcMem16 | ModRM | Mov, SrcMem | ModRM | ByteOp,
    + [Group8*8] =
    + 0, 0, 0, 0,
    + DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
    + DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
    };

    static u32 group2_table[] = {
    --
    1.6.5.3


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