KVM: x86 emulator: Add group9 instruction decoding

Use groups mechanism to decode 0F C7 instructions.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 435b1e4..45a4f7c 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -88,7 +88,7 @@
 enum {
        Group1_80, Group1_81, Group1_82, Group1_83,
        Group1A, Group3_Byte, Group3, Group4, Group5, Group7,
-       Group8,
+       Group8, Group9,
 };
 
 static u32 opcode_table[256] = {
@@ -272,7 +272,8 @@ static u32 twobyte_table[256] = {
        0, 0, ByteOp | DstReg | SrcMem | ModRM | Mov,
            DstReg | SrcMem16 | ModRM | Mov,
        /* 0xC0 - 0xCF */
-       0, 0, 0, DstMem | SrcReg | ModRM | Mov, 0, 0, 0, ImplicitOps | ModRM,
+       0, 0, 0, DstMem | SrcReg | ModRM | Mov,
+       0, 0, 0, Group | GroupDual | Group9,
        0, 0, 0, 0, 0, 0, 0, 0,
        /* 0xD0 - 0xDF */
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -328,6 +329,8 @@ static u32 group_table[] = {
        0, 0, 0, 0,
        DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
        DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
+       [Group9*8] =
+       0, ImplicitOps | ModRM, 0, 0, 0, 0, 0, 0,
 };
 
 static u32 group2_table[] = {
@@ -335,6 +338,8 @@ static u32 group2_table[] = {
        SrcNone | ModRM, 0, 0, SrcNone | ModRM,
        SrcNone | ModRM | DstMem | Mov, 0,
        SrcMem16 | ModRM | Mov, 0,
+       [Group9*8] =
+       0, 0, 0, 0, 0, 0, 0, 0,
 };
 
 /* EFLAGS bit definitions. */