If -cpu host is used, LMCE will be automatically enabled when it's
supported by host.
Signed-off-by: Haozhong Zhang <haozhong.zhang@xxxxxxxxx>
---
target-i386/cpu.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index cdab4f1..610554f 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1493,6 +1493,17 @@ 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 +1576,10 @@ 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);
--
2.9.0
--
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