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authorEric Auger <eric.auger@redhat.com>2025-07-07 18:40:30 +0200
committerPeter Maydell <peter.maydell@linaro.org>2025-07-10 11:41:15 +0100
commitf36032440f5dd7ceb90833dd44600363b1472757 (patch)
treed02556bbfa3e74610898a5c66b6276ff4c9e5cc7
parent4ee1efc9871936e2561212e409ad094c2ae83cad (diff)
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hw/arm/arm_gicv3_kvm: Add a migration blocker with kvm nested virt
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>
-rw-r--r--hw/intc/arm_gicv3_kvm.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c
index b30aac7..8ed88e7 100644
--- a/hw/intc/arm_gicv3_kvm.c
+++ b/hw/intc/arm_gicv3_kvm.c
@@ -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) {