i386: Don't set CPUClass::cpu_def on "max" model
Host CPUID info is used by the "max" CPU model only in KVM mode. Move the initialization of CPUID data for "max" from class_init to instance_init, and don't set CPUClass::cpu_def for "max". Message-Id: <20170222183919.11928-4-ehabkost@redhat.com> Tested-by: Richard W.M. Jones <rjones@redhat.com> Tested-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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@ -60,7 +60,9 @@ typedef struct X86CPUClass {
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CPUClass parent_class;
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CPUClass parent_class;
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/*< public >*/
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/*< public >*/
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/* Should be eventually replaced by subclass-specific property defaults. */
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/* CPU definition, automatically loaded by instance_init if not NULL.
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* Should be eventually replaced by subclass-specific property defaults.
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*/
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X86CPUDefinition *cpu_def;
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X86CPUDefinition *cpu_def;
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bool kvm_required;
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bool kvm_required;
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@ -1531,47 +1531,27 @@ static int cpu_x86_fill_model_id(char *str)
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return 0;
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return 0;
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}
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}
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static X86CPUDefinition host_cpudef;
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static Property max_x86_cpu_properties[] = {
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static Property max_x86_cpu_properties[] = {
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DEFINE_PROP_BOOL("migratable", X86CPU, migratable, true),
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DEFINE_PROP_BOOL("migratable", X86CPU, migratable, true),
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DEFINE_PROP_BOOL("host-cache-info", X86CPU, cache_info_passthrough, false),
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DEFINE_PROP_BOOL("host-cache-info", X86CPU, cache_info_passthrough, false),
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DEFINE_PROP_END_OF_LIST()
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DEFINE_PROP_END_OF_LIST()
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};
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};
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/* class_init for the "max" CPU model
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*
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* This function may be called before KVM is initialized.
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*/
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static void max_x86_cpu_class_init(ObjectClass *oc, void *data)
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static void max_x86_cpu_class_init(ObjectClass *oc, void *data)
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{
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{
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DeviceClass *dc = DEVICE_CLASS(oc);
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DeviceClass *dc = DEVICE_CLASS(oc);
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X86CPUClass *xcc = X86_CPU_CLASS(oc);
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X86CPUClass *xcc = X86_CPU_CLASS(oc);
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uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
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xcc->ordering = 9;
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xcc->ordering = 9;
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host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
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x86_cpu_vendor_words2str(host_cpudef.vendor, ebx, edx, ecx);
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host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
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host_cpudef.family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
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host_cpudef.model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
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host_cpudef.stepping = eax & 0x0F;
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cpu_x86_fill_model_id(host_cpudef.model_id);
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xcc->cpu_def = &host_cpudef;
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xcc->model_description =
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xcc->model_description =
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"Enables all features supported by the accelerator in the current host";
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"Enables all features supported by the accelerator in the current host";
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/* level, xlevel, xlevel2, and the feature words are initialized on
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* instance_init, because they require KVM to be initialized.
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*/
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dc->props = max_x86_cpu_properties;
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dc->props = max_x86_cpu_properties;
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}
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}
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static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp);
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static void max_x86_cpu_initfn(Object *obj)
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static void max_x86_cpu_initfn(Object *obj)
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{
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{
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X86CPU *cpu = X86_CPU(obj);
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X86CPU *cpu = X86_CPU(obj);
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@ -1584,6 +1564,21 @@ static void max_x86_cpu_initfn(Object *obj)
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cpu->max_features = true;
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cpu->max_features = true;
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if (kvm_enabled()) {
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if (kvm_enabled()) {
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X86CPUDefinition host_cpudef = { };
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uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
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host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
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x86_cpu_vendor_words2str(host_cpudef.vendor, ebx, edx, ecx);
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host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
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host_cpudef.family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
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host_cpudef.model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
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host_cpudef.stepping = eax & 0x0F;
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cpu_x86_fill_model_id(host_cpudef.model_id);
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x86_cpu_load_def(cpu, &host_cpudef, &error_abort);
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env->cpuid_min_level =
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env->cpuid_min_level =
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kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
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kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
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env->cpuid_min_xlevel =
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env->cpuid_min_xlevel =
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@ -2185,7 +2180,7 @@ static void x86_cpu_list_entry(gpointer data, gpointer user_data)
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CPUListState *s = user_data;
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CPUListState *s = user_data;
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char *name = x86_cpu_class_get_model_name(cc);
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char *name = x86_cpu_class_get_model_name(cc);
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const char *desc = cc->model_description;
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const char *desc = cc->model_description;
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if (!desc) {
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if (!desc && cc->cpu_def) {
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desc = cc->cpu_def->model_id;
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desc = cc->cpu_def->model_id;
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}
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}
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@ -3683,7 +3678,9 @@ static void x86_cpu_initfn(Object *obj)
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object_property_add_alias(obj, "sse4_1", obj, "sse4.1", &error_abort);
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object_property_add_alias(obj, "sse4_1", obj, "sse4.1", &error_abort);
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object_property_add_alias(obj, "sse4_2", obj, "sse4.2", &error_abort);
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object_property_add_alias(obj, "sse4_2", obj, "sse4.2", &error_abort);
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x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
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if (xcc->cpu_def) {
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x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
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}
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}
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}
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static int64_t x86_cpu_get_arch_id(CPUState *cs)
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static int64_t x86_cpu_get_arch_id(CPUState *cs)
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