From fd0a0d82083747301f6c8084b4141bb490625016 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Thu, 30 Aug 2012 01:30:15 +0200 Subject: [PATCH] KVM: x86 emulator: mark opcode tables const The opcode tables never change at runtime, therefor mark them const. Signed-off-by: Mathias Krause Signed-off-by: Avi Kivity --- arch/x86/kvm/emulate.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 5a0fee1a19c9..fd06f9d65847 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -161,9 +161,9 @@ struct opcode { u64 intercept : 8; union { int (*execute)(struct x86_emulate_ctxt *ctxt); - struct opcode *group; - struct group_dual *gdual; - struct gprefix *gprefix; + const struct opcode *group; + const struct group_dual *gdual; + const struct gprefix *gprefix; } u; int (*check_perm)(struct x86_emulate_ctxt *ctxt); }; @@ -3574,13 +3574,13 @@ static int check_perm_out(struct x86_emulate_ctxt *ctxt) I2bv(((_f) | DstReg | SrcMem | ModRM) & ~Lock, _e), \ I2bv(((_f) & ~Lock) | DstAcc | SrcImm, _e) -static struct opcode group7_rm1[] = { +static const struct opcode group7_rm1[] = { DI(SrcNone | Priv, monitor), DI(SrcNone | Priv, mwait), N, N, N, N, N, N, }; -static struct opcode group7_rm3[] = { +static const struct opcode group7_rm3[] = { DIP(SrcNone | Prot | Priv, vmrun, check_svme_pa), II(SrcNone | Prot | VendorSpecific, em_vmmcall, vmmcall), DIP(SrcNone | Prot | Priv, vmload, check_svme_pa), @@ -3591,13 +3591,13 @@ static struct opcode group7_rm3[] = { DIP(SrcNone | Prot | Priv, invlpga, check_svme), }; -static struct opcode group7_rm7[] = { +static const struct opcode group7_rm7[] = { N, DIP(SrcNone, rdtscp, check_rdtsc), N, N, N, N, N, N, }; -static struct opcode group1[] = { +static const struct opcode group1[] = { I(Lock, em_add), I(Lock | PageTable, em_or), I(Lock, em_adc), @@ -3608,11 +3608,11 @@ static struct opcode group1[] = { I(0, em_cmp), }; -static struct opcode group1A[] = { +static const struct opcode group1A[] = { I(DstMem | SrcNone | Mov | Stack, em_pop), N, N, N, N, N, N, N, }; -static struct opcode group3[] = { +static const struct opcode group3[] = { I(DstMem | SrcImm, em_test), I(DstMem | SrcImm, em_test), I(DstMem | SrcNone | Lock, em_not), @@ -3623,13 +3623,13 @@ static struct opcode group3[] = { I(SrcMem, em_idiv_ex), }; -static struct opcode group4[] = { +static const struct opcode group4[] = { I(ByteOp | DstMem | SrcNone | Lock, em_grp45), I(ByteOp | DstMem | SrcNone | Lock, em_grp45), N, N, N, N, N, N, }; -static struct opcode group5[] = { +static const struct opcode group5[] = { I(DstMem | SrcNone | Lock, em_grp45), I(DstMem | SrcNone | Lock, em_grp45), I(SrcMem | Stack, em_grp45), @@ -3639,7 +3639,7 @@ static struct opcode group5[] = { I(SrcMem | Stack, em_grp45), N, }; -static struct opcode group6[] = { +static const struct opcode group6[] = { DI(Prot, sldt), DI(Prot, str), II(Prot | Priv | SrcMem16, em_lldt, lldt), @@ -3647,7 +3647,7 @@ static struct opcode group6[] = { N, N, N, N, }; -static struct group_dual group7 = { { +static const struct group_dual group7 = { { II(Mov | DstMem | Priv, em_sgdt, sgdt), II(Mov | DstMem | Priv, em_sidt, sidt), II(SrcMem | Priv, em_lgdt, lgdt), @@ -3664,7 +3664,7 @@ static struct group_dual group7 = { { EXT(0, group7_rm7), } }; -static struct opcode group8[] = { +static const struct opcode group8[] = { N, N, N, N, I(DstMem | SrcImmByte, em_bt), I(DstMem | SrcImmByte | Lock | PageTable, em_bts), @@ -3672,26 +3672,26 @@ static struct opcode group8[] = { I(DstMem | SrcImmByte | Lock | PageTable, em_btc), }; -static struct group_dual group9 = { { +static const struct group_dual group9 = { { N, I(DstMem64 | Lock | PageTable, em_cmpxchg8b), N, N, N, N, N, N, }, { N, N, N, N, N, N, N, N, } }; -static struct opcode group11[] = { +static const struct opcode group11[] = { I(DstMem | SrcImm | Mov | PageTable, em_mov), X7(D(Undefined)), }; -static struct gprefix pfx_0f_6f_0f_7f = { +static const struct gprefix pfx_0f_6f_0f_7f = { I(Mmx, em_mov), I(Sse | Aligned, em_mov), N, I(Sse | Unaligned, em_mov), }; -static struct gprefix pfx_vmovntpx = { +static const struct gprefix pfx_vmovntpx = { I(0, em_mov), N, N, N, }; -static struct opcode opcode_table[256] = { +static const struct opcode opcode_table[256] = { /* 0x00 - 0x07 */ I6ALU(Lock, em_add), I(ImplicitOps | Stack | No64 | Src2ES, em_push_sreg), @@ -3808,7 +3808,7 @@ static struct opcode opcode_table[256] = { D(ImplicitOps), D(ImplicitOps), G(0, group4), G(0, group5), }; -static struct opcode twobyte_table[256] = { +static const struct opcode twobyte_table[256] = { /* 0x00 - 0x0F */ G(0, group6), GD(0, &group7), N, N, N, I(ImplicitOps | VendorSpecific, em_syscall), -- 2.20.1