#include "cpu.h"
#include "sysemu/kvm.h"
#include "sysemu/cpus.h"
+#include "kvm_i386.h"
#include "topology.h"
#include "qemu/option.h"
} X86RegisterInfo32;
#define REGISTER(reg) \
- [R_##reg] = { .name = #reg, .qapi_enum = X86_C_P_U_REGISTER32_##reg }
-X86RegisterInfo32 x86_reg_info_32[CPU_NB_REGS32] = {
+ [R_##reg] = { .name = #reg, .qapi_enum = X86_CPU_REGISTER32_##reg }
+static const X86RegisterInfo32 x86_reg_info_32[CPU_NB_REGS32] = {
REGISTER(EAX),
REGISTER(ECX),
REGISTER(EDX),
static const ExtSaveArea ext_save_areas[] = {
[2] = { .feature = FEAT_1_ECX, .bits = CPUID_EXT_AVX,
.offset = 0x240, .size = 0x100 },
+ [3] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_MPX,
+ .offset = 0x3c0, .size = 0x40 },
+ [4] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_MPX,
+ .offset = 0x400, .size = 0x40 },
};
const char *get_register_name_32(unsigned int reg)
FeatureWord feat_word;
} model_features_t;
-int check_cpuid = 0;
-int enforce_cpuid = 0;
-
-static uint32_t kvm_default_features = (1 << KVM_FEATURE_CLOCKSOURCE) |
+/* KVM-specific features that are automatically added to all CPU models
+ * when KVM is enabled.
+ */
+static uint32_t kvm_default_features[FEATURE_WORDS] = {
+ [FEAT_KVM] = (1 << KVM_FEATURE_CLOCKSOURCE) |
(1 << KVM_FEATURE_NOP_IO_DELAY) |
(1 << KVM_FEATURE_CLOCKSOURCE2) |
(1 << KVM_FEATURE_ASYNC_PF) |
(1 << KVM_FEATURE_STEAL_TIME) |
(1 << KVM_FEATURE_PV_EOI) |
- (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT);
+ (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT),
+ [FEAT_1_ECX] = CPUID_EXT_X2APIC,
+};
-void disable_kvm_pv_eoi(void)
+void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features)
{
- kvm_default_features &= ~(1UL << KVM_FEATURE_PV_EOI);
+ kvm_default_features[w] &= ~features;
}
void host_cpuid(uint32_t function, uint32_t count,
uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx)
{
-#if defined(CONFIG_KVM)
uint32_t vec[4];
#ifdef __x86_64__
: "=a"(vec[0]), "=b"(vec[1]),
"=c"(vec[2]), "=d"(vec[3])
: "0"(function), "c"(count) : "cc");
-#else
+#elif defined(__i386__)
asm volatile("pusha \n\t"
"cpuid \n\t"
"mov %%eax, 0(%2) \n\t"
"popa"
: : "a"(function), "c"(count), "S"(vec)
: "memory", "cc");
+#else
+ abort();
#endif
if (eax)
*ecx = vec[2];
if (edx)
*edx = vec[3];
-#endif
}
#define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c)))
}
}
-typedef struct x86_def_t {
+/* CPU class name definitions: */
+
+#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
+#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
+
+/* Return type name for a given CPU model name
+ * Caller is responsible for freeing the returned string.
+ */
+static char *x86_cpu_type_name(const char *model_name)
+{
+ return g_strdup_printf(X86_CPU_TYPE_NAME("%s"), model_name);
+}
+
+static ObjectClass *x86_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+ char *typename;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+
+ typename = x86_cpu_type_name(cpu_model);
+ oc = object_class_by_name(typename);
+ g_free(typename);
+ return oc;
+}
+
+struct X86CPUDefinition {
const char *name;
uint32_t level;
uint32_t xlevel;
FeatureWordArray features;
char model_id[48];
bool cache_info_passthrough;
-} x86_def_t;
+};
#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
CPUID_PSE36 | CPUID_CLFLUSH | CPUID_ACPI | CPUID_MMX | \
CPUID_FXSR | CPUID_SSE | CPUID_SSE2 | CPUID_SS)
/* partly implemented:
- CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64)
- CPUID_PSE36 (needed for Solaris) */
+ CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64) */
/* missing:
CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
#define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_PCLMULQDQ | \
CPUID_EXT_RDRAND */
#define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
- CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT)
- /* missing:
- CPUID_EXT2_PDPE1GB */
+ CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB)
#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
CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
CPUID_7_0_EBX_RDSEED */
-/* built-in CPU model definitions
- */
-static x86_def_t builtin_x86_defs[] = {
+static X86CPUDefinition builtin_x86_defs[] = {
{
.name = "qemu64",
.level = 4,
void x86_cpu_compat_set_features(const char *cpu_model, FeatureWord w,
uint32_t feat_add, uint32_t feat_remove)
{
- x86_def_t *def;
+ X86CPUDefinition *def;
int i;
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
def = &builtin_x86_defs[i];
}
#ifdef CONFIG_KVM
+
static int cpu_x86_fill_model_id(char *str)
{
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
}
return 0;
}
-#endif
-/* Fill a x86_def_t struct with information about the host CPU, and
- * the CPU features supported by the host hardware + host kernel
+static X86CPUDefinition host_cpudef;
+
+/* class_init for the "host" CPU model
*
- * This function may be called only if KVM is enabled.
+ * This function may be called before KVM is initialized.
*/
-static void kvm_cpu_fill_host(x86_def_t *x86_cpu_def)
+static void host_x86_cpu_class_init(ObjectClass *oc, void *data)
{
-#ifdef CONFIG_KVM
- KVMState *s = kvm_state;
+ X86CPUClass *xcc = X86_CPU_CLASS(oc);
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
- assert(kvm_enabled());
+ xcc->kvm_required = true;
- x86_cpu_def->name = "host";
- x86_cpu_def->cache_info_passthrough = true;
host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
- x86_cpu_vendor_words2str(x86_cpu_def->vendor, ebx, edx, ecx);
+ x86_cpu_vendor_words2str(host_cpudef.vendor, ebx, edx, ecx);
host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
- x86_cpu_def->family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
- x86_cpu_def->model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
- x86_cpu_def->stepping = eax & 0x0F;
-
- x86_cpu_def->level = kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
- x86_cpu_def->features[FEAT_1_EDX] =
- kvm_arch_get_supported_cpuid(s, 0x1, 0, R_EDX);
- x86_cpu_def->features[FEAT_1_ECX] =
- kvm_arch_get_supported_cpuid(s, 0x1, 0, R_ECX);
-
- if (x86_cpu_def->level >= 7) {
- x86_cpu_def->features[FEAT_7_0_EBX] =
- kvm_arch_get_supported_cpuid(s, 0x7, 0, R_EBX);
- } else {
- x86_cpu_def->features[FEAT_7_0_EBX] = 0;
- }
-
- x86_cpu_def->xlevel = kvm_arch_get_supported_cpuid(s, 0x80000000, 0, R_EAX);
- x86_cpu_def->features[FEAT_8000_0001_EDX] =
- kvm_arch_get_supported_cpuid(s, 0x80000001, 0, R_EDX);
- x86_cpu_def->features[FEAT_8000_0001_ECX] =
- kvm_arch_get_supported_cpuid(s, 0x80000001, 0, R_ECX);
-
- cpu_x86_fill_model_id(x86_cpu_def->model_id);
-
- /* Call Centaur's CPUID instruction. */
- if (!strcmp(x86_cpu_def->vendor, CPUID_VENDOR_VIA)) {
- host_cpuid(0xC0000000, 0, &eax, &ebx, &ecx, &edx);
- eax = kvm_arch_get_supported_cpuid(s, 0xC0000000, 0, R_EAX);
- if (eax >= 0xC0000001) {
- /* Support VIA max extended level */
- x86_cpu_def->xlevel2 = eax;
- host_cpuid(0xC0000001, 0, &eax, &ebx, &ecx, &edx);
- x86_cpu_def->features[FEAT_C000_0001_EDX] =
- kvm_arch_get_supported_cpuid(s, 0xC0000001, 0, R_EDX);
- }
- }
+ host_cpudef.family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
+ host_cpudef.model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
+ host_cpudef.stepping = eax & 0x0F;
+
+ cpu_x86_fill_model_id(host_cpudef.model_id);
+
+ xcc->cpu_def = &host_cpudef;
+ host_cpudef.cache_info_passthrough = true;
+
+ /* level, xlevel, xlevel2, and the feature words are initialized on
+ * instance_init, because they require KVM to be initialized.
+ */
+}
+
+static void host_x86_cpu_initfn(Object *obj)
+{
+ X86CPU *cpu = X86_CPU(obj);
+ CPUX86State *env = &cpu->env;
+ KVMState *s = kvm_state;
+ FeatureWord w;
+
+ assert(kvm_enabled());
- /* Other KVM-specific feature fields: */
- x86_cpu_def->features[FEAT_SVM] =
- kvm_arch_get_supported_cpuid(s, 0x8000000A, 0, R_EDX);
- x86_cpu_def->features[FEAT_KVM] =
- kvm_arch_get_supported_cpuid(s, KVM_CPUID_FEATURES, 0, R_EAX);
+ env->cpuid_level = kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
+ env->cpuid_xlevel = kvm_arch_get_supported_cpuid(s, 0x80000000, 0, R_EAX);
+ env->cpuid_xlevel2 = kvm_arch_get_supported_cpuid(s, 0xC0000000, 0, R_EAX);
-#endif /* CONFIG_KVM */
+ for (w = 0; w < FEATURE_WORDS; w++) {
+ FeatureWordInfo *wi = &feature_word_info[w];
+ env->features[w] =
+ kvm_arch_get_supported_cpuid(s, wi->cpuid_eax, wi->cpuid_ecx,
+ wi->cpuid_reg);
+ }
+ object_property_set_bool(OBJECT(cpu), true, "pmu", &error_abort);
}
+static const TypeInfo host_x86_cpu_type_info = {
+ .name = X86_CPU_TYPE_NAME("host"),
+ .parent = TYPE_X86_CPU,
+ .instance_init = host_x86_cpu_initfn,
+ .class_init = host_x86_cpu_class_init,
+};
+
+#endif
+
static int unavailable_host_feature(FeatureWordInfo *f, uint32_t mask)
{
int i;
*
* This function may be called only if KVM is enabled.
*/
-static int kvm_check_features_against_host(X86CPU *cpu)
+static int kvm_check_features_against_host(KVMState *s, X86CPU *cpu)
{
CPUX86State *env = &cpu->env;
- x86_def_t host_def;
- uint32_t mask;
- int rv, i;
- struct model_features_t ft[] = {
- {&env->features[FEAT_1_EDX],
- &host_def.features[FEAT_1_EDX],
- FEAT_1_EDX },
- {&env->features[FEAT_1_ECX],
- &host_def.features[FEAT_1_ECX],
- FEAT_1_ECX },
- {&env->features[FEAT_8000_0001_EDX],
- &host_def.features[FEAT_8000_0001_EDX],
- FEAT_8000_0001_EDX },
- {&env->features[FEAT_8000_0001_ECX],
- &host_def.features[FEAT_8000_0001_ECX],
- FEAT_8000_0001_ECX },
- {&env->features[FEAT_C000_0001_EDX],
- &host_def.features[FEAT_C000_0001_EDX],
- FEAT_C000_0001_EDX },
- {&env->features[FEAT_7_0_EBX],
- &host_def.features[FEAT_7_0_EBX],
- FEAT_7_0_EBX },
- {&env->features[FEAT_SVM],
- &host_def.features[FEAT_SVM],
- FEAT_SVM },
- {&env->features[FEAT_KVM],
- &host_def.features[FEAT_KVM],
- FEAT_KVM },
- };
+ int rv = 0;
+ FeatureWord w;
assert(kvm_enabled());
- kvm_cpu_fill_host(&host_def);
- for (rv = 0, i = 0; i < ARRAY_SIZE(ft); ++i) {
- FeatureWord w = ft[i].feat_word;
+ for (w = 0; w < FEATURE_WORDS; w++) {
FeatureWordInfo *wi = &feature_word_info[w];
+ uint32_t guest_feat = env->features[w];
+ uint32_t host_feat = kvm_arch_get_supported_cpuid(s, wi->cpuid_eax,
+ wi->cpuid_ecx,
+ wi->cpuid_reg);
+ uint32_t mask;
for (mask = 1; mask; mask <<= 1) {
- if (*ft[i].guest_feat & mask &&
- !(*ft[i].host_feat & mask)) {
+ if (guest_feat & mask && !(host_feat & mask)) {
unavailable_host_feature(wi, mask);
rv = 1;
}
CPUX86State *env = &cpu->env;
const int64_t min = 0;
const int64_t max = 0xff + 0xf;
+ Error *local_err = NULL;
int64_t value;
- visit_type_int(v, &value, name, errp);
- if (error_is_set(errp)) {
+ visit_type_int(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
return;
}
if (value < min || value > max) {
CPUX86State *env = &cpu->env;
const int64_t min = 0;
const int64_t max = 0xff;
+ Error *local_err = NULL;
int64_t value;
- visit_type_int(v, &value, name, errp);
- if (error_is_set(errp)) {
+ visit_type_int(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
return;
}
if (value < min || value > max) {
CPUX86State *env = &cpu->env;
const int64_t min = 0;
const int64_t max = 0xf;
+ Error *local_err = NULL;
int64_t value;
- visit_type_int(v, &value, name, errp);
- if (error_is_set(errp)) {
+ visit_type_int(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
return;
}
if (value < min || value > max) {
X86CPU *cpu = X86_CPU(obj);
const int64_t min = 0;
const int64_t max = INT64_MAX;
+ Error *local_err = NULL;
int64_t value;
- visit_type_int(v, &value, name, errp);
- if (error_is_set(errp)) {
+ visit_type_int(v, &value, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
return;
}
if (value < min || value > max) {
error_propagate(errp, err);
}
-static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def,
- const char *name)
+static void x86_get_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
{
- x86_def_t *def;
- int i;
+ X86CPU *cpu = X86_CPU(obj);
+ int64_t value = cpu->hyperv_spinlock_attempts;
- if (name == NULL) {
- return -1;
- }
- if (kvm_enabled() && strcmp(name, "host") == 0) {
- kvm_cpu_fill_host(x86_cpu_def);
- object_property_set_bool(OBJECT(cpu), true, "pmu", &error_abort);
- return 0;
- }
+ visit_type_int(v, &value, name, errp);
+}
- for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
- def = &builtin_x86_defs[i];
- if (strcmp(name, def->name) == 0) {
- memcpy(x86_cpu_def, def, sizeof(*def));
- /* sysenter isn't supported in compatibility mode on AMD,
- * syscall isn't supported in compatibility mode on Intel.
- * Normally we advertise the actual CPU vendor, but you can
- * override this using the 'vendor' property if you want to use
- * KVM's sysenter/syscall emulation in compatibility mode and
- * when doing cross vendor migration
- */
- if (kvm_enabled()) {
- uint32_t ebx = 0, ecx = 0, edx = 0;
- host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
- x86_cpu_vendor_words2str(x86_cpu_def->vendor, ebx, edx, ecx);
- }
- return 0;
- }
+static void x86_set_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ const int64_t min = 0xFFF;
+ const int64_t max = UINT_MAX;
+ X86CPU *cpu = X86_CPU(obj);
+ Error *err = NULL;
+ int64_t value;
+
+ visit_type_int(v, &value, name, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
}
- return -1;
+ if (value < min || value > max) {
+ error_setg(errp, "Property %s.%s doesn't take value %" PRId64
+ " (minimum: %" PRId64 ", maximum: %" PRId64 ")",
+ object_get_typename(obj), name ? name : "null",
+ value, min, max);
+ return;
+ }
+ cpu->hyperv_spinlock_attempts = value;
}
+static PropertyInfo qdev_prop_spinlocks = {
+ .name = "int",
+ .get = x86_get_hv_spinlocks,
+ .set = x86_set_hv_spinlocks,
+};
+
/* Convert all '_' in a feature string option name to '-', to make feature
* name conform to QOM property naming rule, which uses '-' instead of '_'.
*/
/* Parse "+feature,-feature,feature=foo" CPU feature string
*/
-static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error **errp)
+static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
+ Error **errp)
{
+ X86CPU *cpu = X86_CPU(cs);
char *featurestr; /* Single 'key=value" string being parsed */
/* Features to be added */
FeatureWordArray plus_features = { 0 };
FeatureWordArray minus_features = { 0 };
uint32_t numvalue;
CPUX86State *env = &cpu->env;
+ Error *local_err = NULL;
featurestr = features ? strtok(features, ",") : NULL;
} else if ((val = strchr(featurestr, '='))) {
*val = 0; val++;
feat2prop(featurestr);
- if (!strcmp(featurestr, "family")) {
- object_property_parse(OBJECT(cpu), val, featurestr, errp);
- } else if (!strcmp(featurestr, "model")) {
- object_property_parse(OBJECT(cpu), val, featurestr, errp);
- } else if (!strcmp(featurestr, "stepping")) {
- object_property_parse(OBJECT(cpu), val, featurestr, errp);
- } else if (!strcmp(featurestr, "level")) {
- object_property_parse(OBJECT(cpu), val, featurestr, errp);
- } else if (!strcmp(featurestr, "xlevel")) {
+ if (!strcmp(featurestr, "xlevel")) {
char *err;
char num[32];
numvalue = strtoul(val, &err, 0);
if (!*val || *err) {
error_setg(errp, "bad numerical value %s", val);
- goto out;
+ return;
}
if (numvalue < 0x80000000) {
- fprintf(stderr, "xlevel value shall always be >= 0x80000000"
- ", fixup will be removed in future versions\n");
+ error_report("xlevel value shall always be >= 0x80000000"
+ ", fixup will be removed in future versions");
numvalue += 0x80000000;
}
snprintf(num, sizeof(num), "%" PRIu32, numvalue);
- object_property_parse(OBJECT(cpu), num, featurestr, errp);
- } else if (!strcmp(featurestr, "vendor")) {
- object_property_parse(OBJECT(cpu), val, featurestr, errp);
- } else if (!strcmp(featurestr, "model-id")) {
- object_property_parse(OBJECT(cpu), val, featurestr, errp);
+ object_property_parse(OBJECT(cpu), num, featurestr, &local_err);
} else if (!strcmp(featurestr, "tsc-freq")) {
int64_t tsc_freq;
char *err;
STRTOSZ_DEFSUFFIX_B, 1000);
if (tsc_freq < 0 || *err) {
error_setg(errp, "bad numerical value %s", val);
- goto out;
+ return;
}
snprintf(num, sizeof(num), "%" PRId64, tsc_freq);
- object_property_parse(OBJECT(cpu), num, "tsc-frequency", errp);
+ object_property_parse(OBJECT(cpu), num, "tsc-frequency",
+ &local_err);
} else if (!strcmp(featurestr, "hv-spinlocks")) {
char *err;
const int min = 0xFFF;
+ char num[32];
numvalue = strtoul(val, &err, 0);
if (!*val || *err) {
error_setg(errp, "bad numerical value %s", val);
- goto out;
+ return;
}
if (numvalue < min) {
- fprintf(stderr, "hv-spinlocks value shall always be >= 0x%x"
- ", fixup will be removed in future versions\n",
+ error_report("hv-spinlocks value shall always be >= 0x%x"
+ ", fixup will be removed in future versions",
min);
numvalue = min;
}
- cpu->hyperv_spinlock_attempts = numvalue;
+ snprintf(num, sizeof(num), "%" PRId32, numvalue);
+ object_property_parse(OBJECT(cpu), num, featurestr, &local_err);
} else {
- error_setg(errp, "unrecognized feature %s", featurestr);
- goto out;
+ object_property_parse(OBJECT(cpu), val, featurestr, &local_err);
}
- } else if (!strcmp(featurestr, "check")) {
- check_cpuid = 1;
- } else if (!strcmp(featurestr, "enforce")) {
- check_cpuid = enforce_cpuid = 1;
- } else if (!strcmp(featurestr, "hv_relaxed")) {
- cpu->hyperv_relaxed_timing = true;
- } else if (!strcmp(featurestr, "hv_vapic")) {
- cpu->hyperv_vapic = true;
} else {
- error_setg(errp, "feature string `%s' not in format (+feature|"
- "-feature|feature=xyz)", featurestr);
- goto out;
+ feat2prop(featurestr);
+ object_property_parse(OBJECT(cpu), "on", featurestr, &local_err);
}
- if (error_is_set(errp)) {
- goto out;
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
featurestr = strtok(NULL, ",");
}
env->features[FEAT_KVM] &= ~minus_features[FEAT_KVM];
env->features[FEAT_SVM] &= ~minus_features[FEAT_SVM];
env->features[FEAT_7_0_EBX] &= ~minus_features[FEAT_7_0_EBX];
-
-out:
- return;
}
/* generate a composite string into buf of all cpuid names in featureset
/* generate CPU information. */
void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf)
{
- x86_def_t *def;
+ X86CPUDefinition *def;
char buf[256];
int i;
CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
{
CpuDefinitionInfoList *cpu_list = NULL;
- x86_def_t *def;
+ X86CPUDefinition *def;
int i;
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
return cpu_list;
}
-#ifdef CONFIG_KVM
static void filter_features_for_kvm(X86CPU *cpu)
{
CPUX86State *env = &cpu->env;
cpu->filtered_features[w] = requested_features & ~env->features[w];
}
}
-#endif
-static void cpu_x86_register(X86CPU *cpu, const char *name, Error **errp)
+/* Load data from X86CPUDefinition
+ */
+static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
{
CPUX86State *env = &cpu->env;
- x86_def_t def1, *def = &def1;
-
- memset(def, 0, sizeof(*def));
-
- if (cpu_x86_find_by_name(cpu, def, name) < 0) {
- error_setg(errp, "Unable to find CPU definition: %s", name);
- return;
- }
-
- if (kvm_enabled()) {
- def->features[FEAT_KVM] |= kvm_default_features;
- }
- def->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
+ const char *vendor;
+ char host_vendor[CPUID_VENDOR_SZ + 1];
- object_property_set_str(OBJECT(cpu), def->vendor, "vendor", errp);
object_property_set_int(OBJECT(cpu), def->level, "level", errp);
object_property_set_int(OBJECT(cpu), def->family, "family", errp);
object_property_set_int(OBJECT(cpu), def->model, "model", errp);
cpu->cache_info_passthrough = def->cache_info_passthrough;
object_property_set_str(OBJECT(cpu), def->model_id, "model-id", errp);
+
+ /* Special cases not set in the X86CPUDefinition structs: */
+ if (kvm_enabled()) {
+ FeatureWord w;
+ for (w = 0; w < FEATURE_WORDS; w++) {
+ env->features[w] |= kvm_default_features[w];
+ }
+ }
+
+ env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
+
+ /* sysenter isn't supported in compatibility mode on AMD,
+ * syscall isn't supported in compatibility mode on Intel.
+ * Normally we advertise the actual CPU vendor, but you can
+ * override this using the 'vendor' property if you want to use
+ * KVM's sysenter/syscall emulation in compatibility mode and
+ * when doing cross vendor migration
+ */
+ vendor = def->vendor;
+ if (kvm_enabled()) {
+ uint32_t ebx = 0, ecx = 0, edx = 0;
+ host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
+ x86_cpu_vendor_words2str(host_vendor, ebx, edx, ecx);
+ vendor = host_vendor;
+ }
+
+ object_property_set_str(OBJECT(cpu), vendor, "vendor", errp);
+
}
X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,
Error **errp)
{
X86CPU *cpu = NULL;
+ X86CPUClass *xcc;
+ ObjectClass *oc;
gchar **model_pieces;
char *name, *features;
- char *typename;
Error *error = NULL;
model_pieces = g_strsplit(cpu_model, ",", 2);
name = model_pieces[0];
features = model_pieces[1];
- cpu = X86_CPU(object_new(TYPE_X86_CPU));
-#ifndef CONFIG_USER_ONLY
- if (icc_bridge == NULL) {
- error_setg(&error, "Invalid icc-bridge value");
+ oc = x86_cpu_class_by_name(name);
+ if (oc == NULL) {
+ error_setg(&error, "Unable to find CPU definition: %s", name);
goto out;
}
- qdev_set_parent_bus(DEVICE(cpu), qdev_get_child_bus(icc_bridge, "icc"));
- object_unref(OBJECT(cpu));
-#endif
+ xcc = X86_CPU_CLASS(oc);
- cpu_x86_register(cpu, name, &error);
- if (error) {
+ if (xcc->kvm_required && !kvm_enabled()) {
+ error_setg(&error, "CPU model '%s' requires KVM", name);
goto out;
}
- /* Emulate per-model subclasses for global properties */
- typename = g_strdup_printf("%s-" TYPE_X86_CPU, name);
- qdev_prop_set_globals_for_type(DEVICE(cpu), typename, &error);
- g_free(typename);
- if (error) {
+ cpu = X86_CPU(object_new(object_class_get_name(oc)));
+
+#ifndef CONFIG_USER_ONLY
+ if (icc_bridge == NULL) {
+ error_setg(&error, "Invalid icc-bridge value");
goto out;
}
+ qdev_set_parent_bus(DEVICE(cpu), qdev_get_child_bus(icc_bridge, "icc"));
+ object_unref(OBJECT(cpu));
+#endif
- cpu_x86_parse_featurestr(cpu, features, &error);
+ x86_cpu_parse_featurestr(CPU(cpu), features, &error);
if (error) {
goto out;
}
out:
if (error != NULL) {
error_propagate(errp, error);
- object_unref(OBJECT(cpu));
- cpu = NULL;
+ if (cpu) {
+ object_unref(OBJECT(cpu));
+ cpu = NULL;
+ }
}
g_strfreev(model_pieces);
return cpu;
return cpu;
}
+static void x86_cpu_cpudef_class_init(ObjectClass *oc, void *data)
+{
+ X86CPUDefinition *cpudef = data;
+ X86CPUClass *xcc = X86_CPU_CLASS(oc);
+
+ xcc->cpu_def = cpudef;
+}
+
+static void x86_register_cpudef_type(X86CPUDefinition *def)
+{
+ char *typename = x86_cpu_type_name(def->name);
+ TypeInfo ti = {
+ .name = typename,
+ .parent = TYPE_X86_CPU,
+ .class_init = x86_cpu_cpudef_class_init,
+ .class_data = def,
+ };
+
+ type_register(&ti);
+ g_free(typename);
+}
+
#if !defined(CONFIG_USER_ONLY)
void cpu_clear_apic_feature(CPUX86State *env)
static const char *model_with_versions[] = { "qemu32", "qemu64", "athlon" };
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); ++i) {
- x86_def_t *def = &builtin_x86_defs[i];
+ X86CPUDefinition *def = &builtin_x86_defs[i];
/* Look for specific "cpudef" models that */
/* have the QEMU version in .model_id */
xcc->parent_reset(s);
+ memset(env, 0, offsetof(CPUX86State, cpuid_level));
- memset(env, 0, offsetof(CPUX86State, breakpoints));
-
- tlb_flush(env, 1);
+ tlb_flush(s, 1);
env->old_exception = -1;
memset(env->dr, 0, sizeof(env->dr));
env->dr[6] = DR6_FIXED_1;
env->dr[7] = DR7_FIXED_1;
- cpu_breakpoint_remove_all(env, BP_CPU);
- cpu_watchpoint_remove_all(env, BP_CPU);
+ cpu_breakpoint_remove_all(s, BP_CPU);
+ cpu_watchpoint_remove_all(s, BP_CPU);
+
+ env->xcr0 = 1;
#if !defined(CONFIG_USER_ONLY)
/* We hard-wire the BSP to the first CPU. */
if (s->cpu_index == 0) {
- apic_designate_bsp(env->apic_state);
+ apic_designate_bsp(cpu->apic_state);
}
s->halted = !cpu_is_bsp(cpu);
+
+ if (kvm_enabled()) {
+ kvm_arch_reset_vcpu(cpu);
+ }
#endif
}
#ifndef CONFIG_USER_ONLY
bool cpu_is_bsp(X86CPU *cpu)
{
- return cpu_get_apic_base(cpu->env.apic_state) & MSR_IA32_APICBASE_BSP;
+ return cpu_get_apic_base(cpu->apic_state) & MSR_IA32_APICBASE_BSP;
}
/* TODO: remove me, when reset over QOM tree is implemented */
apic_type = "xen-apic";
}
- env->apic_state = qdev_try_create(qdev_get_parent_bus(dev), apic_type);
- if (env->apic_state == NULL) {
+ cpu->apic_state = qdev_try_create(qdev_get_parent_bus(dev), apic_type);
+ if (cpu->apic_state == NULL) {
error_setg(errp, "APIC device '%s' could not be created", apic_type);
return;
}
object_property_add_child(OBJECT(cpu), "apic",
- OBJECT(env->apic_state), NULL);
- qdev_prop_set_uint8(env->apic_state, "id", env->cpuid_apic_id);
+ OBJECT(cpu->apic_state), NULL);
+ qdev_prop_set_uint8(cpu->apic_state, "id", env->cpuid_apic_id);
/* TODO: convert to link<> */
- apic = APIC_COMMON(env->apic_state);
+ apic = APIC_COMMON(cpu->apic_state);
apic->cpu = cpu;
}
static void x86_cpu_apic_realize(X86CPU *cpu, Error **errp)
{
- CPUX86State *env = &cpu->env;
-
- if (env->apic_state == NULL) {
+ if (cpu->apic_state == NULL) {
return;
}
- if (qdev_init(env->apic_state)) {
+ if (qdev_init(cpu->apic_state)) {
error_setg(errp, "APIC device '%s' could not be initialized",
- object_get_typename(OBJECT(env->apic_state)));
+ object_get_typename(OBJECT(cpu->apic_state)));
return;
}
}
env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
} else {
- if (check_cpuid && kvm_check_features_against_host(cpu)
- && enforce_cpuid) {
+ KVMState *s = kvm_state;
+ if ((cpu->check_cpuid || cpu->enforce_cpuid)
+ && kvm_check_features_against_host(s, cpu) && cpu->enforce_cpuid) {
error_setg(&local_err,
"Host's CPU doesn't support requested features");
goto out;
}
-#ifdef CONFIG_KVM
filter_features_for_kvm(cpu);
-#endif
}
#ifndef CONFIG_USER_ONLY
{
CPUState *cs = CPU(obj);
X86CPU *cpu = X86_CPU(obj);
+ X86CPUClass *xcc = X86_CPU_GET_CLASS(obj);
CPUX86State *env = &cpu->env;
static int inited;
cpu->hyperv_spinlock_attempts = HYPERV_SPINLOCK_NEVER_RETRY;
env->cpuid_apic_id = x86_cpu_apic_id_from_index(cs->cpu_index);
+ x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
+
/* init various static tables used in TCG mode */
if (tcg_enabled() && !inited) {
inited = 1;
cpu->env.eip = tb->pc - tb->cs_base;
}
+static bool x86_cpu_has_work(CPUState *cs)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ return ((cs->interrupt_request & (CPU_INTERRUPT_HARD |
+ CPU_INTERRUPT_POLL)) &&
+ (env->eflags & IF_MASK)) ||
+ (cs->interrupt_request & (CPU_INTERRUPT_NMI |
+ CPU_INTERRUPT_INIT |
+ CPU_INTERRUPT_SIPI |
+ CPU_INTERRUPT_MCE));
+}
+
static Property x86_cpu_properties[] = {
DEFINE_PROP_BOOL("pmu", X86CPU, enable_pmu, false),
+ { .name = "hv-spinlocks", .info = &qdev_prop_spinlocks },
+ DEFINE_PROP_BOOL("hv-relaxed", X86CPU, hyperv_relaxed_timing, false),
+ DEFINE_PROP_BOOL("hv-vapic", X86CPU, hyperv_vapic, false),
+ DEFINE_PROP_BOOL("hv-time", X86CPU, hyperv_time, false),
+ DEFINE_PROP_BOOL("check", X86CPU, check_cpuid, false),
+ DEFINE_PROP_BOOL("enforce", X86CPU, enforce_cpuid, false),
+ DEFINE_PROP_BOOL("kvm", X86CPU, expose_kvm, true),
DEFINE_PROP_END_OF_LIST()
};
cc->reset = x86_cpu_reset;
cc->reset_dump_flags = CPU_DUMP_FPU | CPU_DUMP_CCOP;
+ cc->class_by_name = x86_cpu_class_by_name;
+ cc->parse_features = x86_cpu_parse_featurestr;
+ cc->has_work = x86_cpu_has_work;
cc->do_interrupt = x86_cpu_do_interrupt;
cc->dump_state = x86_cpu_dump_state;
cc->set_pc = x86_cpu_set_pc;
cc->gdb_write_register = x86_cpu_gdb_write_register;
cc->get_arch_id = x86_cpu_get_arch_id;
cc->get_paging_enabled = x86_cpu_get_paging_enabled;
-#ifndef CONFIG_USER_ONLY
+#ifdef CONFIG_USER_ONLY
+ cc->handle_mmu_fault = x86_cpu_handle_mmu_fault;
+#else
cc->get_memory_mapping = x86_cpu_get_memory_mapping;
cc->get_phys_page_debug = x86_cpu_get_phys_page_debug;
cc->write_elf64_note = x86_cpu_write_elf64_note;
.parent = TYPE_CPU,
.instance_size = sizeof(X86CPU),
.instance_init = x86_cpu_initfn,
- .abstract = false,
+ .abstract = true,
.class_size = sizeof(X86CPUClass),
.class_init = x86_cpu_common_class_init,
};
static void x86_cpu_register_types(void)
{
+ int i;
+
type_register_static(&x86_cpu_type_info);
+ for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
+ x86_register_cpudef_type(&builtin_x86_defs[i]);
+ }
+#ifdef CONFIG_KVM
+ type_register_static(&host_x86_cpu_type_info);
+#endif
}
type_init(x86_cpu_register_types)
projects / qemu.git / blobdiff