static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def, const char *name) { x86_def_t *def; int i; 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; } 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; } } return -1; }