block: add BlockRAMRegistrar
Emulated devices and other BlockBackend users wishing to take advantage of blk_register_buf() all have the same repetitive job: register RAMBlocks with the BlockBackend
block: add BlockRAMRegistrar
Emulated devices and other BlockBackend users wishing to take advantage of blk_register_buf() all have the same repetitive job: register RAMBlocks with the BlockBackend using RAMBlockNotifier.
Add a BlockRAMRegistrar API to do this. A later commit will use this from hw/block/virtio-blk.c.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20221013185908.1297568-10-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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