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-rw-r--r--target-i386/cc_helper.c10
-rw-r--r--target-i386/cpu.c34
-rw-r--r--target-i386/cpu.h33
-rw-r--r--target-i386/helper.c150
-rw-r--r--target-i386/helper.h2
-rw-r--r--target-i386/translate.c27
6 files changed, 207 insertions, 49 deletions
diff --git a/target-i386/cc_helper.c b/target-i386/cc_helper.c
index 07892f9049..9422003f24 100644
--- a/target-i386/cc_helper.c
+++ b/target-i386/cc_helper.c
@@ -353,6 +353,16 @@ void helper_sti(CPUX86State *env)
env->eflags |= IF_MASK;
}
+void helper_clac(CPUX86State *env)
+{
+ env->eflags &= ~AC_MASK;
+}
+
+void helper_stac(CPUX86State *env)
+{
+ env->eflags |= AC_MASK;
+}
+
#if 0
/* vm86plus instructions */
void helper_cli_vm(CPUX86State *env)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index c4e6163c9a..bb1e44eb01 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -104,6 +104,13 @@ static const char *svm_feature_name[] = {
NULL, NULL, NULL, NULL,
};
+static const char *cpuid_7_0_ebx_feature_name[] = {
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, "smep",
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, "smap", NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
/* collects per-function cpuid data
*/
typedef struct model_features_t {
@@ -219,14 +226,17 @@ static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features,
uint32_t *ext2_features,
uint32_t *ext3_features,
uint32_t *kvm_features,
- uint32_t *svm_features)
+ uint32_t *svm_features,
+ uint32_t *cpuid_7_0_ebx_features)
{
if (!lookup_feature(features, flagname, NULL, feature_name) &&
!lookup_feature(ext_features, flagname, NULL, ext_feature_name) &&
!lookup_feature(ext2_features, flagname, NULL, ext2_feature_name) &&
!lookup_feature(ext3_features, flagname, NULL, ext3_feature_name) &&
!lookup_feature(kvm_features, flagname, NULL, kvm_feature_name) &&
- !lookup_feature(svm_features, flagname, NULL, svm_feature_name))
+ !lookup_feature(svm_features, flagname, NULL, svm_feature_name) &&
+ !lookup_feature(cpuid_7_0_ebx_features, flagname, NULL,
+ cpuid_7_0_ebx_feature_name))
fprintf(stderr, "CPU feature %s not found\n", flagname);
}
@@ -287,6 +297,7 @@ typedef struct x86_def_t {
#define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
#define TCG_SVM_FEATURES 0
+#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP)
/* maintains list of cpu model definitions
*/
@@ -1097,10 +1108,12 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
uint32_t plus_features = 0, plus_ext_features = 0;
uint32_t plus_ext2_features = 0, plus_ext3_features = 0;
uint32_t plus_kvm_features = 0, plus_svm_features = 0;
+ uint32_t plus_7_0_ebx_features = 0;
/* Features to be removed */
uint32_t minus_features = 0, minus_ext_features = 0;
uint32_t minus_ext2_features = 0, minus_ext3_features = 0;
uint32_t minus_kvm_features = 0, minus_svm_features = 0;
+ uint32_t minus_7_0_ebx_features = 0;
uint32_t numvalue;
for (def = x86_defs; def; def = def->next)
@@ -1127,8 +1140,8 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
#endif
add_flagname_to_bitmaps("hypervisor", &plus_features,
- &plus_ext_features, &plus_ext2_features, &plus_ext3_features,
- &plus_kvm_features, &plus_svm_features);
+ &plus_ext_features, &plus_ext2_features, &plus_ext3_features,
+ &plus_kvm_features, &plus_svm_features, &plus_7_0_ebx_features);
featurestr = strtok(NULL, ",");
@@ -1138,12 +1151,12 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
add_flagname_to_bitmaps(featurestr + 1, &plus_features,
&plus_ext_features, &plus_ext2_features,
&plus_ext3_features, &plus_kvm_features,
- &plus_svm_features);
+ &plus_svm_features, &plus_7_0_ebx_features);
} else if (featurestr[0] == '-') {
add_flagname_to_bitmaps(featurestr + 1, &minus_features,
&minus_ext_features, &minus_ext2_features,
&minus_ext3_features, &minus_kvm_features,
- &minus_svm_features);
+ &minus_svm_features, &minus_7_0_ebx_features);
} else if ((val = strchr(featurestr, '='))) {
*val = 0; val++;
if (!strcmp(featurestr, "family")) {
@@ -1249,16 +1262,21 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
x86_cpu_def->ext3_features |= plus_ext3_features;
x86_cpu_def->kvm_features |= plus_kvm_features;
x86_cpu_def->svm_features |= plus_svm_features;
+ x86_cpu_def->cpuid_7_0_ebx_features |= plus_7_0_ebx_features;
x86_cpu_def->features &= ~minus_features;
x86_cpu_def->ext_features &= ~minus_ext_features;
x86_cpu_def->ext2_features &= ~minus_ext2_features;
x86_cpu_def->ext3_features &= ~minus_ext3_features;
x86_cpu_def->kvm_features &= ~minus_kvm_features;
x86_cpu_def->svm_features &= ~minus_svm_features;
+ x86_cpu_def->cpuid_7_0_ebx_features &= ~minus_7_0_ebx_features;
if (check_cpuid) {
if (check_features_against_host(x86_cpu_def) && enforce_cpuid)
goto error;
}
+ if (x86_cpu_def->cpuid_7_0_ebx_features && x86_cpu_def->level < 7) {
+ x86_cpu_def->level = 7;
+ }
g_free(s);
return 0;
@@ -1374,7 +1392,7 @@ int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
env->cpuid_kvm_features = def->kvm_features;
env->cpuid_svm_features = def->svm_features;
env->cpuid_ext4_features = def->ext4_features;
- env->cpuid_7_0_ebx = def->cpuid_7_0_ebx_features;
+ env->cpuid_7_0_ebx_features = def->cpuid_7_0_ebx_features;
env->cpuid_xlevel2 = def->xlevel2;
object_property_set_int(OBJECT(cpu), (int64_t)def->tsc_khz * 1000,
"tsc-frequency", &error);
@@ -1562,7 +1580,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
/* Structured Extended Feature Flags Enumeration Leaf */
if (count == 0) {
*eax = 0; /* Maximum ECX value for sub-leaves */
- *ebx = env->cpuid_7_0_ebx; /* Feature flags */
+ *ebx = env->cpuid_7_0_ebx_features; /* Feature flags */
*ecx = 0; /* Reserved */
*edx = 0; /* Reserved */
} else {
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 49950843f6..e4a7d5b6e4 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -123,8 +123,8 @@
/* hidden flags - used internally by qemu to represent additional cpu
states. Only the CPL, INHIBIT_IRQ, SMM and SVMI are not
- redundant. We avoid using the IOPL_MASK, TF_MASK and VM_MASK bit
- position to ease oring with eflags. */
+ redundant. We avoid using the IOPL_MASK, TF_MASK, VM_MASK and AC_MASK
+ bit positions to ease oring with eflags. */
/* current cpl */
#define HF_CPL_SHIFT 0
/* true if soft mmu is being used */
@@ -147,10 +147,12 @@
#define HF_CS64_SHIFT 15 /* only used on x86_64: 64 bit code segment */
#define HF_RF_SHIFT 16 /* must be same as eflags */
#define HF_VM_SHIFT 17 /* must be same as eflags */
+#define HF_AC_SHIFT 18 /* must be same as eflags */
#define HF_SMM_SHIFT 19 /* CPU in SMM mode */
#define HF_SVME_SHIFT 20 /* SVME enabled (copy of EFER.SVME) */
#define HF_SVMI_SHIFT 21 /* SVM intercepts are active */
#define HF_OSFXSR_SHIFT 22 /* CR4.OSFXSR */
+#define HF_SMAP_SHIFT 23 /* CR4.SMAP */
#define HF_CPL_MASK (3 << HF_CPL_SHIFT)
#define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT)
@@ -168,10 +170,12 @@
#define HF_CS64_MASK (1 << HF_CS64_SHIFT)
#define HF_RF_MASK (1 << HF_RF_SHIFT)
#define HF_VM_MASK (1 << HF_VM_SHIFT)
+#define HF_AC_MASK (1 << HF_AC_SHIFT)
#define HF_SMM_MASK (1 << HF_SMM_SHIFT)
#define HF_SVME_MASK (1 << HF_SVME_SHIFT)
#define HF_SVMI_MASK (1 << HF_SVMI_SHIFT)
#define HF_OSFXSR_MASK (1 << HF_OSFXSR_SHIFT)
+#define HF_SMAP_MASK (1 << HF_SMAP_SHIFT)
/* hflags2 */
@@ -210,6 +214,13 @@
#define CR4_OSFXSR_SHIFT 9
#define CR4_OSFXSR_MASK (1 << CR4_OSFXSR_SHIFT)
#define CR4_OSXMMEXCPT_MASK (1 << 10)
+#define CR4_VMXE_MASK (1 << 13)
+#define CR4_SMXE_MASK (1 << 14)
+#define CR4_FSGSBASE_MASK (1 << 16)
+#define CR4_PCIDE_MASK (1 << 17)
+#define CR4_OSXSAVE_MASK (1 << 18)
+#define CR4_SMEP_MASK (1 << 20)
+#define CR4_SMAP_MASK (1 << 21)
#define DR6_BD (1 << 13)
#define DR6_BS (1 << 14)
@@ -474,6 +485,9 @@
#define CPUID_SVM_PAUSEFILTER (1 << 10)
#define CPUID_SVM_PFTHRESHOLD (1 << 12)
+#define CPUID_7_0_EBX_SMEP (1 << 7)
+#define CPUID_7_0_EBX_SMAP (1 << 20)
+
#define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */
#define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */
#define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */
@@ -649,7 +663,7 @@ typedef struct {
#define CPU_NB_REGS CPU_NB_REGS32
#endif
-#define NB_MMU_MODES 2
+#define NB_MMU_MODES 3
typedef enum TPRAccess {
TPR_ACCESS_READ,
@@ -779,7 +793,7 @@ typedef struct CPUX86State {
uint32_t cpuid_xlevel2;
uint32_t cpuid_ext4_features;
/* Flags from CPUID[EAX=7,ECX=0].EBX */
- uint32_t cpuid_7_0_ebx;
+ uint32_t cpuid_7_0_ebx_features;
/* MTRRs */
uint64_t mtrr_fixed[11];
@@ -1018,10 +1032,15 @@ static inline CPUX86State *cpu_init(const char *cpu_model)
/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
#define MMU_MODE1_SUFFIX _user
-#define MMU_USER_IDX 1
+#define MMU_MODE2_SUFFIX _ksmap /* Kernel with SMAP override */
+#define MMU_KERNEL_IDX 0
+#define MMU_USER_IDX 1
+#define MMU_KSMAP_IDX 2
static inline int cpu_mmu_index (CPUX86State *env)
{
- return (env->hflags & HF_CPL_MASK) == 3 ? 1 : 0;
+ return (env->hflags & HF_CPL_MASK) == 3 ? MMU_USER_IDX :
+ ((env->hflags & HF_SMAP_MASK) && (env->eflags & AC_MASK))
+ ? MMU_KSMAP_IDX : MMU_KERNEL_IDX;
}
#undef EAX
@@ -1107,7 +1126,7 @@ static inline void cpu_get_tb_cpu_state(CPUX86State *env, target_ulong *pc,
*cs_base = env->segs[R_CS].base;
*pc = *cs_base + env->eip;
*flags = env->hflags |
- (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK));
+ (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK | AC_MASK));
}
void do_cpu_init(X86CPU *cpu);
diff --git a/target-i386/helper.c b/target-i386/helper.c
index 8a5da3d7c0..c635667d60 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -443,17 +443,27 @@ void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
#if defined(DEBUG_MMU)
printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
#endif
- if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
- (env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
+ if ((new_cr4 ^ env->cr[4]) &
+ (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK |
+ CR4_SMEP_MASK | CR4_SMAP_MASK)) {
tlb_flush(env, 1);
}
/* SSE handling */
- if (!(env->cpuid_features & CPUID_SSE))
+ if (!(env->cpuid_features & CPUID_SSE)) {
new_cr4 &= ~CR4_OSFXSR_MASK;
- if (new_cr4 & CR4_OSFXSR_MASK)
+ }
+ env->hflags &= ~HF_OSFXSR_MASK;
+ if (new_cr4 & CR4_OSFXSR_MASK) {
env->hflags |= HF_OSFXSR_MASK;
- else
- env->hflags &= ~HF_OSFXSR_MASK;
+ }
+
+ if (!(env->cpuid_7_0_ebx_features & CPUID_7_0_EBX_SMAP)) {
+ new_cr4 &= ~CR4_SMAP_MASK;
+ }
+ env->hflags &= ~HF_SMAP_MASK;
+ if (new_cr4 & CR4_SMAP_MASK) {
+ env->hflags |= HF_SMAP_MASK;
+ }
env->cr[4] = new_cr4;
}
@@ -591,17 +601,38 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
/* 2 MB page */
page_size = 2048 * 1024;
ptep ^= PG_NX_MASK;
- if ((ptep & PG_NX_MASK) && is_write1 == 2)
+ if ((ptep & PG_NX_MASK) && is_write1 == 2) {
goto do_fault_protect;
- if (is_user) {
- if (!(ptep & PG_USER_MASK))
+ }
+ switch (mmu_idx) {
+ case MMU_USER_IDX:
+ if (!(ptep & PG_USER_MASK)) {
goto do_fault_protect;
- if (is_write && !(ptep & PG_RW_MASK))
+ }
+ if (is_write && !(ptep & PG_RW_MASK)) {
goto do_fault_protect;
- } else {
+ }
+ break;
+
+ case MMU_KERNEL_IDX:
+ if (is_write1 != 2 && (env->cr[4] & CR4_SMAP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ /* fall through */
+ case MMU_KSMAP_IDX:
+ if (is_write1 == 2 && (env->cr[4] & CR4_SMEP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(ptep & PG_RW_MASK))
+ is_write && !(ptep & PG_RW_MASK)) {
goto do_fault_protect;
+ }
+ break;
+
+ default: /* cannot happen */
+ break;
}
is_dirty = is_write && !(pde & PG_DIRTY_MASK);
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
@@ -635,15 +666,35 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
ptep ^= PG_NX_MASK;
if ((ptep & PG_NX_MASK) && is_write1 == 2)
goto do_fault_protect;
- if (is_user) {
- if (!(ptep & PG_USER_MASK))
+ switch (mmu_idx) {
+ case MMU_USER_IDX:
+ if (!(ptep & PG_USER_MASK)) {
goto do_fault_protect;
- if (is_write && !(ptep & PG_RW_MASK))
+ }
+ if (is_write && !(ptep & PG_RW_MASK)) {
goto do_fault_protect;
- } else {
+ }
+ break;
+
+ case MMU_KERNEL_IDX:
+ if (is_write1 != 2 && (env->cr[4] & CR4_SMAP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ /* fall through */
+ case MMU_KSMAP_IDX:
+ if (is_write1 == 2 && (env->cr[4] & CR4_SMEP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(ptep & PG_RW_MASK))
+ is_write && !(ptep & PG_RW_MASK)) {
goto do_fault_protect;
+ }
+ break;
+
+ default: /* cannot happen */
+ break;
}
is_dirty = is_write && !(pte & PG_DIRTY_MASK);
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
@@ -670,15 +721,35 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
/* if PSE bit is set, then we use a 4MB page */
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
page_size = 4096 * 1024;
- if (is_user) {
- if (!(pde & PG_USER_MASK))
+ switch (mmu_idx) {
+ case MMU_USER_IDX:
+ if (!(pde & PG_USER_MASK)) {
goto do_fault_protect;
- if (is_write && !(pde & PG_RW_MASK))
+ }
+ if (is_write && !(pde & PG_RW_MASK)) {
goto do_fault_protect;
- } else {
+ }
+ break;
+
+ case MMU_KERNEL_IDX:
+ if (is_write1 != 2 && (env->cr[4] & CR4_SMAP_MASK) &&
+ (pde & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ /* fall through */
+ case MMU_KSMAP_IDX:
+ if (is_write1 == 2 && (env->cr[4] & CR4_SMEP_MASK) &&
+ (pde & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(pde & PG_RW_MASK))
+ is_write && !(pde & PG_RW_MASK)) {
goto do_fault_protect;
+ }
+ break;
+
+ default: /* cannot happen */
+ break;
}
is_dirty = is_write && !(pde & PG_DIRTY_MASK);
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
@@ -707,15 +778,35 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
}
/* combine pde and pte user and rw protections */
ptep = pte & pde;
- if (is_user) {
- if (!(ptep & PG_USER_MASK))
+ switch (mmu_idx) {
+ case MMU_USER_IDX:
+ if (!(ptep & PG_USER_MASK)) {
goto do_fault_protect;
- if (is_write && !(ptep & PG_RW_MASK))
+ }
+ if (is_write && !(ptep & PG_RW_MASK)) {
goto do_fault_protect;
- } else {
+ }
+ break;
+
+ case MMU_KERNEL_IDX:
+ if (is_write1 != 2 && (env->cr[4] & CR4_SMAP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ /* fall through */
+ case MMU_KSMAP_IDX:
+ if (is_write1 == 2 && (env->cr[4] & CR4_SMEP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
if ((env->cr[0] & CR0_WP_MASK) &&
- is_write && !(ptep & PG_RW_MASK))
+ is_write && !(ptep & PG_RW_MASK)) {
goto do_fault_protect;
+ }
+ break;
+
+ default: /* cannot happen */
+ break;
}
is_dirty = is_write && !(pte & PG_DIRTY_MASK);
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
@@ -762,8 +853,9 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
if (is_user)
error_code |= PG_ERROR_U_MASK;
if (is_write1 == 2 &&
- (env->efer & MSR_EFER_NXE) &&
- (env->cr[4] & CR4_PAE_MASK))
+ (((env->efer & MSR_EFER_NXE) &&
+ (env->cr[4] & CR4_PAE_MASK)) ||
+ (env->cr[4] & CR4_SMEP_MASK)))
error_code |= PG_ERROR_I_D_MASK;
if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
/* cr2 is not modified in case of exceptions */
diff --git a/target-i386/helper.h b/target-i386/helper.h
index ab6af638e6..93850ceecd 100644
--- a/target-i386/helper.h
+++ b/target-i386/helper.h
@@ -67,6 +67,8 @@ DEF_HELPER_3(raise_interrupt, void, env, int, int)
DEF_HELPER_2(raise_exception, void, env, int)
DEF_HELPER_1(cli, void, env)
DEF_HELPER_1(sti, void, env)
+DEF_HELPER_1(clac, void, env)
+DEF_HELPER_1(stac, void, env)
DEF_HELPER_1(set_inhibit_irq, void, env)
DEF_HELPER_1(reset_inhibit_irq, void, env)
DEF_HELPER_3(boundw, void, env, tl, int)
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 323869d874..0a7e4e3487 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -107,6 +107,7 @@ typedef struct DisasContext {
int cpuid_ext_features;
int cpuid_ext2_features;
int cpuid_ext3_features;
+ int cpuid_7_0_ebx_features;
} DisasContext;
static void gen_eob(DisasContext *s);
@@ -6556,7 +6557,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
}
gen_pop_update(s);
s->cc_op = CC_OP_EFLAGS;
- /* abort translation because TF flag may change */
+ /* abort translation because TF/AC flag may change */
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
@@ -7206,6 +7207,24 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
gen_helper_mwait(cpu_env, tcg_const_i32(s->pc - pc_start));
gen_eob(s);
break;
+ case 2: /* clac */
+ if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_SMAP) ||
+ s->cpl != 0) {
+ goto illegal_op;
+ }
+ gen_helper_clac(cpu_env);
+ gen_jmp_im(s->pc - s->cs_base);
+ gen_eob(s);
+ break;
+ case 3: /* stac */
+ if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_SMAP) ||
+ s->cpl != 0) {
+ goto illegal_op;
+ }
+ gen_helper_stac(cpu_env);
+ gen_jmp_im(s->pc - s->cs_base);
+ gen_eob(s);
+ break;
default:
goto illegal_op;
}
@@ -7901,15 +7920,13 @@ static inline void gen_intermediate_code_internal(CPUX86State *env,
/* select memory access functions */
dc->mem_index = 0;
if (flags & HF_SOFTMMU_MASK) {
- if (dc->cpl == 3)
- dc->mem_index = 2 * 4;
- else
- dc->mem_index = 1 * 4;
+ dc->mem_index = (cpu_mmu_index(env) + 1) << 2;
}
dc->cpuid_features = env->cpuid_features;
dc->cpuid_ext_features = env->cpuid_ext_features;
dc->cpuid_ext2_features = env->cpuid_ext2_features;
dc->cpuid_ext3_features = env->cpuid_ext3_features;
+ dc->cpuid_7_0_ebx_features = env->cpuid_7_0_ebx_features;
#ifdef TARGET_X86_64
dc->lma = (flags >> HF_LMA_SHIFT) & 1;
dc->code64 = (flags >> HF_CS64_SHIFT) & 1;
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-02 17:00:55 +0000