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target/i386: kvm: add VMX migration blocker 

Nested VMX does not support live migration yet.  Add a blocker
until that is worked out.

Nested SVM only does not support it, but unfortunately it is
enabled by default for -cpu host so we cannot really disable it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-11-14 10:38:13 +01:00
parent 4822f1ee9e
commit d98f26073b
1 changed files with 12 additions and 0 deletions
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12
target/i386/kvm.c
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@ -855,6 +855,7 @@ static int hyperv_init_vcpu(X86CPU *cpu)
}
static Error *invtsc_mig_blocker;
static Error *vmx_mig_blocker;
#define KVM_MAX_CPUID_ENTRIES 100
@ -1247,6 +1248,17 @@ int kvm_arch_init_vcpu(CPUState *cs)
!!(c->ecx & CPUID_EXT_SMX);
}
if ((env->features[FEAT_1_ECX] & CPUID_EXT_VMX) && !vmx_mig_blocker) {
error_setg(&vmx_mig_blocker,
"Nested VMX virtualization does not support live migration yet");
r = migrate_add_blocker(vmx_mig_blocker, &local_err);
if (local_err) {
error_report_err(local_err);
error_free(vmx_mig_blocker);
return r;
}
}
if (env->mcg_cap & MCG_LMCE_P) {
has_msr_mcg_ext_ctl = has_msr_feature_control = true;
}