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[Qemu-devel] [PATCH v2] target/i386: kvm: add VMX migration blocker
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v2] target/i386: kvm: add VMX migration blocker |
Date: |
Mon, 19 Nov 2018 19:23:30 +0100 |
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 <address@hidden>
---
target/i386/kvm.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index f524e7d929..27dcca5365 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -854,6 +854,7 @@ static int hyperv_init_vcpu(X86CPU *cpu)
}
static Error *invtsc_mig_blocker;
+static Error *vmx_mig_blocker;
#define KVM_MAX_CPUID_ENTRIES 100
@@ -1246,6 +1247,17 @@ 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;
}
--
2.19.1
- [Qemu-devel] [PATCH v2] target/i386: kvm: add VMX migration blocker,
Paolo Bonzini <=