Stefan Hajnoczi baf422684d virtio-blk: use BDRV_REQ_REGISTERED_BUF optimization hint
Register guest RAM using BlockRAMRegistrar and set the
BDRV_REQ_REGISTERED_BUF flag so block drivers can optimize memory
accesses in I/O requests.

This is for vdpa-blk, vhost-user-blk, and other I/O interfaces that rely
on DMA mapping/unmapping.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20221013185908.1297568-14-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-10-26 14:56:42 -04:00
..
2022-06-06 18:09:03 +00:00
2022-10-09 16:38:45 -04:00
2022-10-26 14:56:42 -04:00
2022-10-04 12:13:12 -07:00
2022-08-01 11:58:02 +02:00
2022-09-06 08:04:25 +01:00