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-rw-r--r--target-i386/cpu.c137
1 files changed, 89 insertions, 48 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 3bd3cfc3ad..fc209ee1cb 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -245,6 +245,47 @@ static const char *kvm_feature_name[] = {
NULL, NULL, NULL, NULL,
};
+static const char *hyperv_priv_feature_name[] = {
+ NULL /* hv_msr_vp_runtime_access */, NULL /* hv_msr_time_refcount_access */,
+ NULL /* hv_msr_synic_access */, NULL /* hv_msr_stimer_access */,
+ NULL /* hv_msr_apic_access */, NULL /* hv_msr_hypercall_access */,
+ NULL /* hv_vpindex_access */, NULL /* hv_msr_reset_access */,
+ NULL /* hv_msr_stats_access */, NULL /* hv_reftsc_access */,
+ NULL /* hv_msr_idle_access */, NULL /* hv_msr_frequency_access */,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+};
+
+static const char *hyperv_ident_feature_name[] = {
+ NULL /* hv_create_partitions */, NULL /* hv_access_partition_id */,
+ NULL /* hv_access_memory_pool */, NULL /* hv_adjust_message_buffers */,
+ NULL /* hv_post_messages */, NULL /* hv_signal_events */,
+ NULL /* hv_create_port */, NULL /* hv_connect_port */,
+ NULL /* hv_access_stats */, NULL, NULL, NULL /* hv_debugging */,
+ NULL /* hv_cpu_power_management */, NULL /* hv_configure_profiler */,
+ NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+};
+
+static const char *hyperv_misc_feature_name[] = {
+ NULL /* hv_mwait */, NULL /* hv_guest_debugging */,
+ NULL /* hv_perf_monitor */, NULL /* hv_cpu_dynamic_part */,
+ NULL /* hv_hypercall_params_xmm */, NULL /* hv_guest_idle_state */,
+ NULL, NULL,
+ NULL, NULL, NULL /* hv_guest_crash_msr */, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+};
+
static const char *svm_feature_name[] = {
"npt", "lbrv", "svm_lock", "nrip_save",
"tsc_scale", "vmcb_clean", "flushbyasid", "decodeassists",
@@ -358,10 +399,11 @@ static const char *cpuid_6_feature_name[] = {
#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \
CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \
- CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE)
+ CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \
+ CPUID_7_0_EBX_ERMS)
/* missing:
CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
- CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
+ CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
CPUID_7_0_EBX_RDSEED */
#define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_PKU | CPUID_7_0_ECX_OSPKE)
#define TCG_APM_FEATURES 0
@@ -411,6 +453,18 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
.cpuid_eax = KVM_CPUID_FEATURES, .cpuid_reg = R_EAX,
.tcg_features = TCG_KVM_FEATURES,
},
+ [FEAT_HYPERV_EAX] = {
+ .feat_names = hyperv_priv_feature_name,
+ .cpuid_eax = 0x40000003, .cpuid_reg = R_EAX,
+ },
+ [FEAT_HYPERV_EBX] = {
+ .feat_names = hyperv_ident_feature_name,
+ .cpuid_eax = 0x40000003, .cpuid_reg = R_EBX,
+ },
+ [FEAT_HYPERV_EDX] = {
+ .feat_names = hyperv_misc_feature_name,
+ .cpuid_eax = 0x40000003, .cpuid_reg = R_EDX,
+ },
[FEAT_SVM] = {
.feat_names = svm_feature_name,
.cpuid_eax = 0x8000000A, .cpuid_reg = R_EDX,
@@ -1493,6 +1547,17 @@ static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w,
#ifdef CONFIG_KVM
+static bool lmce_supported(void)
+{
+ uint64_t mce_cap;
+
+ if (kvm_ioctl(kvm_state, KVM_X86_GET_MCE_CAP_SUPPORTED, &mce_cap) < 0) {
+ return false;
+ }
+
+ return !!(mce_cap & MCG_LMCE_P);
+}
+
static int cpu_x86_fill_model_id(char *str)
{
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
@@ -1565,6 +1630,10 @@ static void host_x86_cpu_initfn(Object *obj)
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);
+
+ if (lmce_supported()) {
+ object_property_set_bool(OBJECT(cpu), true, "lmce", &error_abort);
+ }
}
object_property_set_bool(OBJECT(cpu), true, "pmu", &error_abort);
@@ -1957,12 +2026,17 @@ static FeatureWordArray minus_features = { 0 };
/* Parse "+feature,-feature,feature=foo" CPU feature string
*/
-static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
+static void x86_cpu_parse_featurestr(const char *typename, char *features,
Error **errp)
{
- X86CPU *cpu = X86_CPU(cs);
char *featurestr; /* Single 'key=value" string being parsed */
Error *local_err = NULL;
+ static bool cpu_globals_initialized;
+
+ if (cpu_globals_initialized) {
+ return;
+ }
+ cpu_globals_initialized = true;
if (!features) {
return;
@@ -1974,6 +2048,8 @@ static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
const char *name;
const char *val = NULL;
char *eq = NULL;
+ char num[32];
+ GlobalProperty *prop;
/* Compatibility syntax: */
if (featurestr[0] == '+') {
@@ -1999,7 +2075,6 @@ static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
if (!strcmp(name, "tsc-freq")) {
int64_t tsc_freq;
char *err;
- char num[32];
tsc_freq = qemu_strtosz_suffix_unit(val, &err,
QEMU_STRTOSZ_DEFSUFFIX_B, 1000);
@@ -2012,7 +2087,12 @@ static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
name = "tsc-frequency";
}
- object_property_parse(OBJECT(cpu), val, name, &local_err);
+ prop = g_new0(typeof(*prop), 1);
+ prop->driver = typename;
+ prop->property = g_strdup(name);
+ prop->value = g_strdup(val);
+ prop->errp = &error_fatal;
+ qdev_prop_register_global(prop);
}
if (local_err) {
@@ -2197,47 +2277,6 @@ static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
}
-X86CPU *cpu_x86_create(const char *cpu_model, Error **errp)
-{
- X86CPU *cpu = NULL;
- ObjectClass *oc;
- gchar **model_pieces;
- char *name, *features;
- Error *error = NULL;
-
- model_pieces = g_strsplit(cpu_model, ",", 2);
- if (!model_pieces[0]) {
- error_setg(&error, "Invalid/empty CPU model name");
- goto out;
- }
- name = model_pieces[0];
- features = model_pieces[1];
-
- oc = x86_cpu_class_by_name(name);
- if (oc == NULL) {
- error_setg(&error, "Unable to find CPU definition: %s", name);
- goto out;
- }
-
- cpu = X86_CPU(object_new(object_class_get_name(oc)));
-
- x86_cpu_parse_featurestr(CPU(cpu), features, &error);
- if (error) {
- goto out;
- }
-
-out:
- if (error != NULL) {
- error_propagate(errp, error);
- if (cpu) {
- object_unref(OBJECT(cpu));
- cpu = NULL;
- }
- }
- g_strfreev(model_pieces);
- return cpu;
-}
-
X86CPU *cpu_x86_init(const char *cpu_model)
{
return X86_CPU(cpu_generic_init(TYPE_X86_CPU, cpu_model));
@@ -2815,7 +2854,8 @@ static void mce_init(X86CPU *cpu)
if (((cenv->cpuid_version >> 8) & 0xf) >= 6
&& (cenv->features[FEAT_1_EDX] & (CPUID_MCE | CPUID_MCA)) ==
(CPUID_MCE | CPUID_MCA)) {
- cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF;
+ cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF |
+ (cpu->enable_lmce ? MCG_LMCE_P : 0);
cenv->mcg_ctl = ~(uint64_t)0;
for (bank = 0; bank < MCE_BANKS_DEF; bank++) {
cenv->mce_banks[bank * 4] = ~(uint64_t)0;
@@ -3262,6 +3302,7 @@ static Property x86_cpu_properties[] = {
DEFINE_PROP_UINT32("xlevel2", X86CPU, env.cpuid_xlevel2, 0),
DEFINE_PROP_STRING("hv-vendor-id", X86CPU, hyperv_vendor_id),
DEFINE_PROP_BOOL("cpuid-0xb", X86CPU, enable_cpuid_0xb, true),
+ DEFINE_PROP_BOOL("lmce", X86CPU, enable_lmce, false),
DEFINE_PROP_END_OF_LIST()
};
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-25 15:19:26 +0200