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authorPaolo Bonzini <pbonzini@redhat.com>2018-11-14 10:38:13 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2018-11-27 15:06:14 +0100
commitd98f26073bebddcd3da0ba1b86c3a34e840c0fb8 (patch)
tree6083db8e4979eec8af4efd183bbb068bda553a3d /target/i386
parent4822f1ee9efa8df56e29db0a68323b484bdb0335 (diff)
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>
Diffstat (limited to 'target/i386')
-rw-r--r--target/i386/kvm.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 3d6739a2b2..2724800686 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -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;
}