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OpenCloudOS-Kernel
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KVM: x86 emulator: group decoding for group 1 instructions 

Opcodes 0x80-0x83

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2008-01-23 22:26:09 +02:00
parent 09566765ef
commit 1d6ad2073e
1 changed files with 23 additions and 2 deletions
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25
arch/x86/kvm/x86_emulate.c
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@ -70,6 +70,7 @@
#define GroupMask 0xff /* Group number stored in bits 0:7 */
enum {
Group1_80, Group1_81, Group1_82, Group1_83,
Group1A, Group3_Byte, Group3, Group4, Group5, Group7,
};
@ -130,8 +131,8 @@ static u16 opcode_table[256] = {
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
/* 0x80 - 0x87 */
ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
Group | Group1_80, Group | Group1_81,
Group | Group1_82, Group | Group1_83,
ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM,
/* 0x88 - 0x8F */
@ -236,6 +237,26 @@ static u16 twobyte_table[256] = {
};
static u16 group_table[] = {
[Group1_80*8] =
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
[Group1_81*8] =
DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
[Group1_82*8] =
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM,
[Group1_83*8] =
DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM,
[Group1A*8] =
DstMem | SrcNone | ModRM | Mov | Stack, 0, 0, 0, 0, 0, 0, 0,
[Group3_Byte*8] =