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[Qemu-devel] [QEMU PATCH v3 9/9] KVM: i386: Remove VMX migration blocker
From: |
Liran Alon |
Subject: |
[Qemu-devel] [QEMU PATCH v3 9/9] KVM: i386: Remove VMX migration blocker |
Date: |
Mon, 17 Jun 2019 20:56:58 +0300 |
This effectively reverts d98f26073beb ("target/i386: kvm: add VMX migration
blocker").
This can now be done because previous commits added support for Intel VMX
migration.
AMD SVM migration is still blocked. This is because kernel
KVM_CAP_{GET,SET}_NESTED_STATE in case of AMD SVM is not
implemented yet. Therefore, required vCPU nested state is still
missing in order to perform valid migration for vCPU exposed with SVM.
Signed-off-by: Liran Alon <address@hidden>
---
target/i386/kvm.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 797f8ac46435..772c8619efc4 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -948,7 +948,7 @@ static int hyperv_init_vcpu(X86CPU *cpu)
}
static Error *invtsc_mig_blocker;
-static Error *nested_virt_mig_blocker;
+static Error *svm_mig_blocker;
#define KVM_MAX_CPUID_ENTRIES 100
@@ -1313,13 +1313,13 @@ int kvm_arch_init_vcpu(CPUState *cs)
!!(c->ecx & CPUID_EXT_SMX);
}
- if (cpu_has_nested_virt(env) && !nested_virt_mig_blocker) {
- error_setg(&nested_virt_mig_blocker,
- "Nested virtualization does not support live migration
yet");
- r = migrate_add_blocker(nested_virt_mig_blocker, &local_err);
+ if (cpu_has_svm(env) && !svm_mig_blocker) {
+ error_setg(&svm_mig_blocker,
+ "AMD SVM 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(nested_virt_mig_blocker);
+ error_free(svm_mig_blocker);
return r;
}
}
--
2.20.1
- Re: [Qemu-devel] [QEMU PATCH v3 6/9] vmstate: Add support for kernel integer types, (continued)
[Qemu-devel] [QEMU PATCH v3 7/9] KVM: i386: Add support for save and restore nested state, Liran Alon, 2019/06/17
Re: [Qemu-devel] [QEMU PATCH v3 7/9] KVM: i386: Add support for save and restore nested state, Maran Wilson, 2019/06/18
[Qemu-devel] [QEMU PATCH v3 9/9] KVM: i386: Remove VMX migration blocker,
Liran Alon <=
[Qemu-devel] [QEMU PATCH v3 8/9] KVM: i386: Add support for KVM_CAP_EXCEPTION_PAYLOAD, Liran Alon, 2019/06/17