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Merge remote-tracking branch 'afaerber/qom-cpu-x86-prop.v3' into staging 

* afaerber/qom-cpu-x86-prop.v3:
  target-i386: Introduce "tsc-frequency" property for X86CPU
  target-i386: Prepare "vendor" property for X86CPU
  target-i386: Introduce "xlevel" property for X86CPU
  target-i386: Introduce "level" property for X86CPU
  target-i386: Add property getter for CPU model-id
  target-i386: Add property getter for CPU stepping
  target-i386: Add property getter for CPU model
  target-i386: Add property getter for CPU family
  target-i386: Add "model-id" property to X86CPU
  target-i386: Add "stepping" property to X86CPU
  target-i386: Add "model" property to X86CPU
  target-i386: Add "family" property to X86CPU
  target-i386: Add range check for -cpu ,family=x
  target-i386: Pass X86CPU to cpu_x86_register()
  target-i386: Fix x86_cpuid_set_model_id()
This commit is contained in:
Anthony Liguori 2012-04-26 15:18:06 -05:00
parent d6a6922f3b 89e4896560
commit 1fa95c23fe
3 changed files with 301 additions and 20 deletions
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317
target-i386/cpu.c
View File

@ -27,6 +27,8 @@
#include "qemu-option.h"
#include "qemu-config.h"
#include "qapi/qapi-visit-core.h"
#include "hyperv.h"
/* feature flags taken from "Intel Processor Identification and the CPUID
@ -597,30 +599,245 @@ static int check_features_against_host(x86_def_t *guest_def)
return rv;
}
static void x86_cpuid_version_set_family(CPUX86State *env, int family)
static void x86_cpuid_version_get_family(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
int64_t value;
value = (env->cpuid_version >> 8) & 0xf;
if (value == 0xf) {
value += (env->cpuid_version >> 20) & 0xff;
}
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_version_set_family(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
const int64_t min = 0;
const int64_t max = 0xff + 0xf;
int64_t value;
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
env->cpuid_version &= ~0xff00f00;
if (family > 0x0f) {
env->cpuid_version |= 0xf00 | ((family - 0x0f) << 20);
if (value > 0x0f) {
env->cpuid_version |= 0xf00 | ((value - 0x0f) << 20);
} else {
env->cpuid_version |= family << 8;
env->cpuid_version |= value << 8;
}
}
static void x86_cpuid_version_set_model(CPUX86State *env, int model)
static void x86_cpuid_version_get_model(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
int64_t value;
value = (env->cpuid_version >> 4) & 0xf;
value |= ((env->cpuid_version >> 16) & 0xf) << 4;
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_version_set_model(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
const int64_t min = 0;
const int64_t max = 0xff;
int64_t value;
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
env->cpuid_version &= ~0xf00f0;
env->cpuid_version |= ((model & 0xf) << 4) | ((model >> 4) << 16);
env->cpuid_version |= ((value & 0xf) << 4) | ((value >> 4) << 16);
}
static void x86_cpuid_version_set_stepping(CPUX86State *env, int stepping)
static void x86_cpuid_version_get_stepping(Object *obj, Visitor *v,
void *opaque, const char *name,
Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
int64_t value;
value = env->cpuid_version & 0xf;
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_version_set_stepping(Object *obj, Visitor *v,
void *opaque, const char *name,
Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
const int64_t min = 0;
const int64_t max = 0xf;
int64_t value;
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
env->cpuid_version &= ~0xf;
env->cpuid_version |= stepping & 0xf;
env->cpuid_version |= value & 0xf;
}
static void x86_cpuid_set_model_id(CPUX86State *env, const char *model_id)
static void x86_cpuid_get_level(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
int64_t value;
value = cpu->env.cpuid_level;
/* TODO Use visit_type_uint32() once available */
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_set_level(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
const int64_t min = 0;
const int64_t max = UINT32_MAX;
int64_t value;
/* TODO Use visit_type_uint32() once available */
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
cpu->env.cpuid_level = value;
}
static void x86_cpuid_get_xlevel(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
int64_t value;
value = cpu->env.cpuid_xlevel;
/* TODO Use visit_type_uint32() once available */
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_set_xlevel(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
const int64_t min = 0;
const int64_t max = UINT32_MAX;
int64_t value;
/* TODO Use visit_type_uint32() once available */
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
cpu->env.cpuid_xlevel = value;
}
static char *x86_cpuid_get_vendor(Object *obj, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
char *value;
int i;
value = (char *)g_malloc(12 + 1);
for (i = 0; i < 4; i++) {
value[i ] = env->cpuid_vendor1 >> (8 * i);
value[i + 4] = env->cpuid_vendor2 >> (8 * i);
value[i + 8] = env->cpuid_vendor3 >> (8 * i);
}
value[12] = '\0';
return value;
}
static void x86_cpuid_set_vendor(Object *obj, const char *value,
Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
int i;
if (strlen(value) != 12) {
error_set(errp, QERR_PROPERTY_VALUE_BAD, "",
"vendor", value);
return;
}
env->cpuid_vendor1 = 0;
env->cpuid_vendor2 = 0;
env->cpuid_vendor3 = 0;
for (i = 0; i < 4; i++) {
env->cpuid_vendor1 |= ((uint8_t)value[i ]) << (8 * i);
env->cpuid_vendor2 |= ((uint8_t)value[i + 4]) << (8 * i);
env->cpuid_vendor3 |= ((uint8_t)value[i + 8]) << (8 * i);
}
env->cpuid_vendor_override = 1;
}
static char *x86_cpuid_get_model_id(Object *obj, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
char *value;
int i;
value = g_malloc(48 + 1);
for (i = 0; i < 48; i++) {
value[i] = env->cpuid_model[i >> 2] >> (8 * (i & 3));
}
value[48] = '\0';
return value;
}
static void x86_cpuid_set_model_id(Object *obj, const char *model_id,
Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
CPUX86State *env = &cpu->env;
int c, len, i;
if (model_id == NULL) {
@ -638,6 +855,37 @@ static void x86_cpuid_set_model_id(CPUX86State *env, const char *model_id)
}
}
static void x86_cpuid_get_tsc_freq(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
int64_t value;
value = cpu->env.tsc_khz * 1000;
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_set_tsc_freq(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
const int64_t min = 0;
const int64_t max = INT_MAX;
int64_t value;
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
cpu->env.tsc_khz = value / 1000;
}
static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
{
unsigned int i;
@ -691,7 +939,7 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
if (!strcmp(featurestr, "family")) {
char *err;
numvalue = strtoul(val, &err, 0);
if (!*val || *err) {
if (!*val || *err || numvalue > 0xff + 0xf) {
fprintf(stderr, "bad numerical value %s\n", val);
goto error;
}
@ -905,9 +1153,11 @@ void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf, const char *optarg)
}
}
int cpu_x86_register (CPUX86State *env, const char *cpu_model)
int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
{
CPUX86State *env = &cpu->env;
x86_def_t def1, *def = &def1;
Error *error = NULL;
memset(def, 0, sizeof(*def));
@ -923,20 +1173,21 @@ int cpu_x86_register (CPUX86State *env, const char *cpu_model)
env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
}
env->cpuid_vendor_override = def->vendor_override;
env->cpuid_level = def->level;
x86_cpuid_version_set_family(env, def->family);
x86_cpuid_version_set_model(env, def->model);
x86_cpuid_version_set_stepping(env, def->stepping);
object_property_set_int(OBJECT(cpu), def->level, "level", &error);
object_property_set_int(OBJECT(cpu), def->family, "family", &error);
object_property_set_int(OBJECT(cpu), def->model, "model", &error);
object_property_set_int(OBJECT(cpu), def->stepping, "stepping", &error);
env->cpuid_features = def->features;
env->cpuid_ext_features = def->ext_features;
env->cpuid_ext2_features = def->ext2_features;
env->cpuid_ext3_features = def->ext3_features;
env->cpuid_xlevel = def->xlevel;
object_property_set_int(OBJECT(cpu), def->xlevel, "xlevel", &error);
env->cpuid_kvm_features = def->kvm_features;
env->cpuid_svm_features = def->svm_features;
env->cpuid_ext4_features = def->ext4_features;
env->cpuid_xlevel2 = def->xlevel2;
env->tsc_khz = def->tsc_khz;
object_property_set_int(OBJECT(cpu), (int64_t)def->tsc_khz * 1000,
"tsc-frequency", &error);
if (!kvm_enabled()) {
env->cpuid_features &= TCG_FEATURES;
env->cpuid_ext_features &= TCG_EXT_FEATURES;
@ -948,7 +1199,11 @@ int cpu_x86_register (CPUX86State *env, const char *cpu_model)
env->cpuid_ext3_features &= TCG_EXT3_FEATURES;
env->cpuid_svm_features &= TCG_SVM_FEATURES;
}
x86_cpuid_set_model_id(env, def->model_id);
object_property_set_str(OBJECT(cpu), def->model_id, "model-id", &error);
if (error_is_set(&error)) {
error_free(error);
return -1;
}
return 0;
}
@ -1473,6 +1728,32 @@ static void x86_cpu_initfn(Object *obj)
CPUX86State *env = &cpu->env;
cpu_exec_init(env);
object_property_add(obj, "family", "int",
x86_cpuid_version_get_family,
x86_cpuid_version_set_family, NULL, NULL, NULL);
object_property_add(obj, "model", "int",
x86_cpuid_version_get_model,
x86_cpuid_version_set_model, NULL, NULL, NULL);
object_property_add(obj, "stepping", "int",
x86_cpuid_version_get_stepping,
x86_cpuid_version_set_stepping, NULL, NULL, NULL);
object_property_add(obj, "level", "int",
x86_cpuid_get_level,
x86_cpuid_set_level, NULL, NULL, NULL);
object_property_add(obj, "xlevel", "int",
x86_cpuid_get_xlevel,
x86_cpuid_set_xlevel, NULL, NULL, NULL);
object_property_add_str(obj, "vendor",
x86_cpuid_get_vendor,
x86_cpuid_set_vendor, NULL);
object_property_add_str(obj, "model-id",
x86_cpuid_get_model_id,
x86_cpuid_set_model_id, NULL);
object_property_add(obj, "tsc-frequency", "int",
x86_cpuid_get_tsc_freq,
x86_cpuid_set_tsc_freq, NULL, NULL, NULL);
env->cpuid_apic_id = env->cpu_index;
mce_init(cpu);
}

2
target-i386/cpu.h
View File

@ -901,7 +901,7 @@ int cpu_x86_signal_handler(int host_signum, void *pinfo,
void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
uint32_t *eax, uint32_t *ebx,
uint32_t *ecx, uint32_t *edx);
int cpu_x86_register (CPUX86State *env, const char *cpu_model);
int cpu_x86_register(X86CPU *cpu, const char *cpu_model);
void cpu_clear_apic_feature(CPUX86State *env);
void host_cpuid(uint32_t function, uint32_t count,
uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);

2
target-i386/helper.c
View File

@ -1176,7 +1176,7 @@ CPUX86State *cpu_x86_init(const char *cpu_model)
cpu_set_debug_excp_handler(breakpoint_handler);
#endif
}
if (cpu_x86_register(env, cpu_model) < 0) {
if (cpu_x86_register(cpu, cpu_model) < 0) {
object_delete(OBJECT(cpu));
return NULL;
}