On Tue, 19 Mar 2019 at 12:42, Igor Mammedov <imamm...@redhat.com> wrote: > on aarch(64) we also load dtb into main RAM currently only on boot,
Hmm? We load the DTB in hw/arm/boot.c using rom_add_blob_fixed_as(), which means that it will use this "rom blob loading" mechanism, so it should be re-copied into RAM on reset. > and I was planning to move it to reset stage to accommodate > hotplug usecase so that guest would pick up hotplugged > devices after reboot. The problem here is that this is trying to change the contents of the DTB blob on a reboot, which is not supported by the ROM blob mechanism, which assumes that these things are immutable. thanks -- PMM