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hw/arm/arm_gicv3_kvm: Add a migration blocker with kvm nested virt

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We may be miss some NV related GIC register save/restore. Until
we complete the study, let's add a migration blocker when the
maintenance IRQ is set.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20250707164129.1167837-5-eric.auger@redhat.com
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Eric Auger
2025-07-10 11:41:15 +01:00
committed by Peter Maydell
parent 4ee1efc987
commit f36032440f
1 changed files with 8 additions and 0 deletions
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hw/intc/arm_gicv3_kvm.c
+8
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@@ -827,8 +827,16 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
}
if (s->maint_irq) {
Error *kvm_nv_migration_blocker = NULL;
int ret;
error_setg(&kvm_nv_migration_blocker,
"Live migration disabled because KVM nested virt is enabled");
if (migrate_add_blocker(&kvm_nv_migration_blocker, errp)) {
error_free(kvm_nv_migration_blocker);
return;
}
ret = kvm_device_check_attr(s->dev_fd,
KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ, 0);
if (!ret) {