From 4968ec4e26007770d8759fbface4d4712a27b5d4 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 26 Jul 2010 14:37:49 +0300 Subject: [PATCH] KVM: x86 emulator: simplify Group 1 decoding Move operand decoding to the opcode table, keep lock decoding in the group table. This allows us to get consolidate the four variants of Group 1 into one group. Signed-off-by: Avi Kivity Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/emulate.c | 47 +++++++----------------------------------- 1 file changed, 7 insertions(+), 40 deletions(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index ef2b5af33a37..1ce9c6de0aea 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -105,8 +105,7 @@ #define X16(x) X8(x), X8(x) enum { - Group1_80, Group1_81, Group1_82, Group1_83, - Group1A, Group3_Byte, Group3, Group4, Group5, Group7, + Group1, Group1A, Group3_Byte, Group3, Group4, Group5, Group7, Group8, Group9, }; @@ -165,8 +164,10 @@ static u32 opcode_table[256] = { /* 0x70 - 0x7F */ X16(SrcImmByte), /* 0x80 - 0x87 */ - Group | Group1_80, Group | Group1_81, - Group | Group1_82, Group | Group1_83, + ByteOp | DstMem | SrcImm | ModRM | Group | Group1, + DstMem | SrcImm | ModRM | Group | Group1, + ByteOp | DstMem | SrcImm | ModRM | No64 | Group | Group1, + DstMem | SrcImmByte | ModRM | Group | Group1, ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM, ByteOp | DstMem | SrcReg | ModRM | Lock, DstMem | SrcReg | ModRM | Lock, /* 0x88 - 0x8F */ @@ -285,42 +286,8 @@ static u32 twobyte_table[256] = { }; static u32 group_table[] = { - [Group1_80*8] = - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM | Lock, - ByteOp | DstMem | SrcImm | ModRM, - [Group1_81*8] = - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM | Lock, - DstMem | SrcImm | ModRM, - [Group1_82*8] = - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64 | Lock, - ByteOp | DstMem | SrcImm | ModRM | No64, - [Group1_83*8] = - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM | Lock, - DstMem | SrcImmByte | ModRM, + [Group1*8] = + X7(Lock), 0, [Group1A*8] = DstMem | SrcNone | ModRM | Mov | Stack, 0, 0, 0, 0, 0, 0, 0, [Group3_Byte*8] = -- GitLab