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[Qemu-devel] [PATCH] target/i386: kvm: add VMX and SVM migration blocker
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH] target/i386: kvm: add VMX and SVM migration blockers |
Date: |
Fri, 16 Nov 2018 17:48:05 +0100 |
Nested VMX and SVM do not support live migration yet. Add a blocker
until that is worked out.
Signed-off-by: Paolo Bonzini <address@hidden>
---
target/i386/kvm.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index db1f4104b6..3b6fbd3f20 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -860,6 +860,8 @@ static int hyperv_init_vcpu(X86CPU *cpu)
}
static Error *invtsc_mig_blocker;
+static Error *vmx_mig_blocker;
+static Error *svm_mig_blocker;
#define KVM_MAX_CPUID_ENTRIES 100
@@ -1250,6 +1252,29 @@ int kvm_arch_init_vcpu(CPUState *cs)
if (c) {
has_msr_feature_control = !!(c->ecx & CPUID_EXT_VMX) ||
!!(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->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) &&
!svm_mig_blocker) {
+ error_setg(&svm_mig_blocker,
+ "Nested SVM virtualization does not support live migration
yet");
+ r = migrate_add_blocker(svm_mig_blocker, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ error_free(svm_mig_blocker);
+ return r;
+ }
}
if (env->mcg_cap & MCG_LMCE_P) {
--
2.19.1
- [Qemu-devel] [PATCH] target/i386: kvm: add VMX and SVM migration blockers,
Paolo Bonzini <=