linux/drivers/vdpa/vdpa_sim
Xie Yongji d8945ec411 vdpa: Support transferring virtual addressing during DMA mapping
This patch introduces an attribute for vDPA device to indicate
whether virtual address can be used. If vDPA device driver set
it, vhost-vdpa bus driver will not pin user page and transfer
userspace virtual address instead of physical address during
DMA mapping. And corresponding vma->vm_file and offset will be
also passed as an opaque pointer.

Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210831103634.33-11-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-09-06 07:20:57 -04:00
..
Makefile vdpa: add vdpa simulator for block device 2021-05-03 04:55:53 -04:00
vdpa_sim_blk.c vdpa_sim_blk: remove duplicate include of linux/blkdev.h 2021-07-03 04:50:50 -04:00
vdpa_sim_net.c vdpa_sim: Skip typecasting from void* 2021-03-14 04:37:36 -04:00
vdpa_sim.c vdpa: Support transferring virtual addressing during DMA mapping 2021-09-06 07:20:57 -04:00
vdpa_sim.h vdpa_sim: use iova module to allocate IOVA addresses 2021-05-03 04:55:52 -04:00