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Save the MSI message area as part of vfio-pci vmstate, and preserve the interrupt and notifier eventfd's. migrate_incoming loads the MSI data, then the vfio-pci post_load handler finds the eventfds in CPR state, rebuilds vector data structures, and attaches the interrupts to the new KVM instance. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1751493538-202042-2-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>