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Diffstat (limited to 'target-i386/translate.c')
-rw-r--r--target-i386/translate.c238
1 files changed, 101 insertions, 137 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c
index bba9b567b5..ba6284f760 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -733,7 +733,7 @@ static void gen_check_io(DisasContext *s, int ot, target_ulong cur_eip,
tcg_gen_helper_0_1(gen_check_io_func[ot],
cpu_tmp2_i32);
}
- if(s->flags & (1ULL << INTERCEPT_IOIO_PROT)) {
+ if(s->flags & HF_SVMI_MASK) {
if (!state_saved) {
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
@@ -2322,59 +2322,24 @@ static inline int svm_is_rep(int prefixes)
return ((prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) ? 8 : 0);
}
-static inline int
+static inline void
gen_svm_check_intercept_param(DisasContext *s, target_ulong pc_start,
uint32_t type, uint64_t param)
{
- if(!(s->flags & (INTERCEPT_SVM_MASK)))
- /* no SVM activated */
- return 0;
- switch(type) {
- /* CRx and DRx reads/writes */
- case SVM_EXIT_READ_CR0 ... SVM_EXIT_EXCP_BASE - 1:
- if (s->cc_op != CC_OP_DYNAMIC) {
- gen_op_set_cc_op(s->cc_op);
- }
- gen_jmp_im(pc_start - s->cs_base);
- tcg_gen_helper_0_2(helper_svm_check_intercept_param,
- tcg_const_i32(type), tcg_const_i64(param));
- /* this is a special case as we do not know if the interception occurs
- so we assume there was none */
- return 0;
- case SVM_EXIT_MSR:
- if(s->flags & (1ULL << INTERCEPT_MSR_PROT)) {
- if (s->cc_op != CC_OP_DYNAMIC) {
- gen_op_set_cc_op(s->cc_op);
- }
- gen_jmp_im(pc_start - s->cs_base);
- tcg_gen_helper_0_2(helper_svm_check_intercept_param,
- tcg_const_i32(type), tcg_const_i64(param));
- /* this is a special case as we do not know if the interception occurs
- so we assume there was none */
- return 0;
- }
- break;
- default:
- if(s->flags & (1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR))) {
- if (s->cc_op != CC_OP_DYNAMIC) {
- gen_op_set_cc_op(s->cc_op);
- }
- gen_jmp_im(pc_start - s->cs_base);
- tcg_gen_helper_0_2(helper_vmexit,
- tcg_const_i32(type), tcg_const_i64(param));
- /* we can optimize this one so TBs don't get longer
- than up to vmexit */
- gen_eob(s);
- return 1;
- }
- }
- return 0;
+ /* no SVM activated; fast case */
+ if (likely(!(s->flags & HF_SVMI_MASK)))
+ return;
+ if (s->cc_op != CC_OP_DYNAMIC)
+ gen_op_set_cc_op(s->cc_op);
+ gen_jmp_im(pc_start - s->cs_base);
+ tcg_gen_helper_0_2(helper_svm_check_intercept_param,
+ tcg_const_i32(type), tcg_const_i64(param));
}
-static inline int
+static inline void
gen_svm_check_intercept(DisasContext *s, target_ulong pc_start, uint64_t type)
{
- return gen_svm_check_intercept_param(s, pc_start, type, 0);
+ gen_svm_check_intercept_param(s, pc_start, type, 0);
}
static inline void gen_stack_update(DisasContext *s, int addend)
@@ -5743,8 +5708,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
val = 0;
goto do_lret;
case 0xcf: /* iret */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_IRET))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_IRET);
if (!s->pe) {
/* real mode */
tcg_gen_helper_0_1(helper_iret_real, tcg_const_i32(s->dflag));
@@ -5890,8 +5854,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
/************************/
/* flags */
case 0x9c: /* pushf */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_PUSHF))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_PUSHF);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@@ -5902,8 +5865,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
break;
case 0x9d: /* popf */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_POPF))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_POPF);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@@ -6187,14 +6149,10 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
break;
case 0xcc: /* int3 */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SWINT))
- break;
gen_interrupt(s, EXCP03_INT3, pc_start - s->cs_base, s->pc - s->cs_base);
break;
case 0xcd: /* int N */
val = ldub_code(s->pc++);
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SWINT))
- break;
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
@@ -6204,16 +6162,13 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0xce: /* into */
if (CODE64(s))
goto illegal_op;
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SWINT))
- break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_1(helper_into, tcg_const_i32(s->pc - pc_start));
break;
case 0xf1: /* icebp (undocumented, exits to external debugger) */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP);
#if 1
gen_debug(s, pc_start - s->cs_base);
#else
@@ -6371,25 +6326,25 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- int retval = 0;
+ if (s->cc_op != CC_OP_DYNAMIC)
+ gen_op_set_cc_op(s->cc_op);
+ gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
- retval = gen_svm_check_intercept_param(s, pc_start, SVM_EXIT_MSR, 0);
tcg_gen_helper_0_0(helper_rdmsr);
} else {
- retval = gen_svm_check_intercept_param(s, pc_start, SVM_EXIT_MSR, 1);
tcg_gen_helper_0_0(helper_wrmsr);
}
- if(retval)
- gen_eob(s);
}
break;
case 0x131: /* rdtsc */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_RDTSC))
- break;
+ if (s->cc_op != CC_OP_DYNAMIC)
+ gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_0(helper_rdtsc);
break;
case 0x133: /* rdpmc */
+ if (s->cc_op != CC_OP_DYNAMIC)
+ gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_helper_0_0(helper_rdpmc);
break;
@@ -6452,16 +6407,12 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
break;
#endif
case 0x1a2: /* cpuid */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_CPUID))
- break;
tcg_gen_helper_0_0(helper_cpuid);
break;
case 0xf4: /* hlt */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_HLT))
- break;
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(s->pc - s->cs_base);
@@ -6477,8 +6428,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0: /* sldt */
if (!s->pe || s->vm86)
goto illegal_op;
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_READ))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_READ);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,ldt.selector));
ot = OT_WORD;
if (mod == 3)
@@ -6491,8 +6441,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_WRITE))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_WRITE);
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
@@ -6502,8 +6451,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 1: /* str */
if (!s->pe || s->vm86)
goto illegal_op;
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_READ))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_READ);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,tr.selector));
ot = OT_WORD;
if (mod == 3)
@@ -6516,8 +6464,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_WRITE))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_WRITE);
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
@@ -6550,8 +6497,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 0: /* sgdt */
if (mod == 3)
goto illegal_op;
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_GDTR_READ))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_GDTR_READ);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, gdt.limit));
gen_op_st_T0_A0(OT_WORD + s->mem_index);
@@ -6568,8 +6514,6 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (!(s->cpuid_ext_features & CPUID_EXT_MONITOR) ||
s->cpl != 0)
goto illegal_op;
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_MONITOR))
- break;
gen_jmp_im(pc_start - s->cs_base);
#ifdef TARGET_X86_64
if (s->aflag == 2) {
@@ -6592,8 +6536,6 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
gen_op_set_cc_op(s->cc_op);
s->cc_op = CC_OP_DYNAMIC;
}
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_MWAIT))
- break;
gen_jmp_im(s->pc - s->cs_base);
tcg_gen_helper_0_0(helper_mwait);
gen_eob(s);
@@ -6602,8 +6544,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
goto illegal_op;
}
} else { /* sidt */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_IDTR_READ))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_IDTR_READ);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, idt.limit));
gen_op_st_T0_A0(OT_WORD + s->mem_index);
@@ -6617,52 +6558,85 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 2: /* lgdt */
case 3: /* lidt */
if (mod == 3) {
+ if (s->cc_op != CC_OP_DYNAMIC)
+ gen_op_set_cc_op(s->cc_op);
+ gen_jmp_im(pc_start - s->cs_base);
switch(rm) {
case 0: /* VMRUN */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMRUN))
+ if (!(s->flags & HF_SVME_MASK) || !s->pe)
+ goto illegal_op;
+ if (s->cpl != 0) {
+ gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
- if (s->cc_op != CC_OP_DYNAMIC)
- gen_op_set_cc_op(s->cc_op);
- gen_jmp_im(s->pc - s->cs_base);
- tcg_gen_helper_0_0(helper_vmrun);
- s->cc_op = CC_OP_EFLAGS;
- gen_eob(s);
+ } else {
+ tcg_gen_helper_0_0(helper_vmrun);
+ s->cc_op = CC_OP_EFLAGS;
+ gen_eob(s);
+ }
break;
case 1: /* VMMCALL */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMMCALL))
- break;
- /* FIXME: cause #UD if hflags & SVM */
+ if (!(s->flags & HF_SVME_MASK))
+ goto illegal_op;
tcg_gen_helper_0_0(helper_vmmcall);
break;
case 2: /* VMLOAD */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMLOAD))
- break;
- tcg_gen_helper_0_0(helper_vmload);
+ if (!(s->flags & HF_SVME_MASK) || !s->pe)
+ goto illegal_op;
+ if (s->cpl != 0) {
+ gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
+ break;
+ } else {
+ tcg_gen_helper_0_0(helper_vmload);
+ }
break;
case 3: /* VMSAVE */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_VMSAVE))
- break;
- tcg_gen_helper_0_0(helper_vmsave);
+ if (!(s->flags & HF_SVME_MASK) || !s->pe)
+ goto illegal_op;
+ if (s->cpl != 0) {
+ gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
+ break;
+ } else {
+ tcg_gen_helper_0_0(helper_vmsave);
+ }
break;
case 4: /* STGI */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_STGI))
- break;
- tcg_gen_helper_0_0(helper_stgi);
+ if ((!(s->flags & HF_SVME_MASK) &&
+ !(s->cpuid_ext3_features & CPUID_EXT3_SKINIT)) ||
+ !s->pe)
+ goto illegal_op;
+ if (s->cpl != 0) {
+ gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
+ break;
+ } else {
+ tcg_gen_helper_0_0(helper_stgi);
+ }
break;
case 5: /* CLGI */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_CLGI))
- break;
- tcg_gen_helper_0_0(helper_clgi);
+ if (!(s->flags & HF_SVME_MASK) || !s->pe)
+ goto illegal_op;
+ if (s->cpl != 0) {
+ gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
+ break;
+ } else {
+ tcg_gen_helper_0_0(helper_clgi);
+ }
break;
case 6: /* SKINIT */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_SKINIT))
- break;
+ if ((!(s->flags & HF_SVME_MASK) &&
+ !(s->cpuid_ext3_features & CPUID_EXT3_SKINIT)) ||
+ !s->pe)
+ goto illegal_op;
tcg_gen_helper_0_0(helper_skinit);
break;
case 7: /* INVLPGA */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_INVLPGA))
- break;
- tcg_gen_helper_0_0(helper_invlpga);
+ if (!(s->flags & HF_SVME_MASK) || !s->pe)
+ goto illegal_op;
+ if (s->cpl != 0) {
+ gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
+ break;
+ } else {
+ tcg_gen_helper_0_0(helper_invlpga);
+ }
break;
default:
goto illegal_op;
@@ -6670,9 +6644,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
} else if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- if (gen_svm_check_intercept(s, pc_start,
- op==2 ? SVM_EXIT_GDTR_WRITE : SVM_EXIT_IDTR_WRITE))
- break;
+ gen_svm_check_intercept(s, pc_start,
+ op==2 ? SVM_EXIT_GDTR_WRITE : SVM_EXIT_IDTR_WRITE);
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
gen_op_ld_T1_A0(OT_WORD + s->mem_index);
gen_add_A0_im(s, 2);
@@ -6689,8 +6662,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
break;
case 4: /* smsw */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,cr[0]));
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 1);
break;
@@ -6698,8 +6670,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0);
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
tcg_gen_helper_0_1(helper_lmsw, cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
@@ -6724,8 +6695,6 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
goto illegal_op;
}
} else {
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_INVLPG))
- break;
gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
tcg_gen_helper_0_1(helper_invlpg, cpu_A0);
gen_jmp_im(s->pc - s->cs_base);
@@ -6742,8 +6711,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
- if (gen_svm_check_intercept(s, pc_start, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD))
- break;
+ gen_svm_check_intercept(s, pc_start, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD);
/* nothing to do */
}
break;
@@ -6892,21 +6860,18 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
case 3:
case 4:
case 8:
+ if (s->cc_op != CC_OP_DYNAMIC)
+ gen_op_set_cc_op(s->cc_op);
+ gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
- gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0 + reg);
gen_op_mov_TN_reg(ot, 0, rm);
- tcg_gen_helper_0_2(helper_movl_crN_T0,
+ tcg_gen_helper_0_2(helper_write_crN,
tcg_const_i32(reg), cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
- gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0 + reg);
-#if !defined(CONFIG_USER_ONLY)
- if (reg == 8)
- tcg_gen_helper_1_0(helper_movtl_T0_cr8, cpu_T[0]);
- else
-#endif
- tcg_gen_ld_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,cr[reg]));
+ tcg_gen_helper_1_1(helper_read_crN,
+ cpu_T[0], tcg_const_i32(reg));
gen_op_mov_reg_T0(ot, rm);
}
break;
@@ -7054,8 +7019,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
/* ignore for now */
break;
case 0x1aa: /* rsm */
- if (gen_svm_check_intercept(s, pc_start, SVM_EXIT_RSM))
- break;
+ gen_svm_check_intercept(s, pc_start, SVM_EXIT_RSM);
if (!(s->flags & HF_SMM_MASK))
goto illegal_op;
if (s->cc_op != CC_OP_DYNAMIC) {