[PATCH 0/3] Introduce vhost-vdpa block device

[Xie Yongji <xieyongji@bytedance.com>]

Since we already have some ways to emulate vDPA block device
in kernel[1] or userspace[2]. This series tries to introduce a
new vhost-vdpa block device for that. To use it, we can add
something like:

qemu-system-x86_64 \
    -device vhost-vdpa-blk-pci,vdpa-dev=/dev/vhost-vdpa-0

You can also get the code and kernel changes from below repositories:

https://github.com/bytedance/qemu/tree/vhost-vdpa-blk
https://github.com/bytedance/linux/tree/vhost-vdpa-blk

Thank you!

[1] https://lore.kernel.org/kvm/20210315163450.254396-1-sgarzare@redhat.com/
[2] https://lore.kernel.org/kvm/20210331080519.172-1-xieyongji@bytedance.com/

Xie Yongji (3):
  Remove redundant declaration of address_space_memory
  vhost-blk: add vhost-blk-common abstraction
  vhost-vdpa-blk: Introduce vhost-vdpa-blk host device

 hw/block/Kconfig                     |   5 +
 hw/block/meson.build                 |   3 +-
 hw/block/vhost-blk-common.c          | 291 +++++++++++++++++++++++++
 hw/block/vhost-user-blk.c            | 306 +++++----------------------
 hw/block/vhost-vdpa-blk.c            | 227 ++++++++++++++++++++
 hw/virtio/meson.build                |   1 +
 hw/virtio/vhost-user-blk-pci.c       |   7 +-
 hw/virtio/vhost-vdpa-blk-pci.c       | 101 +++++++++
 hw/virtio/vhost-vdpa.c               |   1 +
 include/hw/virtio/vhost-blk-common.h |  50 +++++
 include/hw/virtio/vhost-user-blk.h   |  20 +-
 include/hw/virtio/vhost-vdpa-blk.h   |  30 +++
 include/hw/virtio/vhost-vdpa.h       |   1 -
 13 files changed, 762 insertions(+), 281 deletions(-)
 create mode 100644 hw/block/vhost-blk-common.c
 create mode 100644 hw/block/vhost-vdpa-blk.c
 create mode 100644 hw/virtio/vhost-vdpa-blk-pci.c
 create mode 100644 include/hw/virtio/vhost-blk-common.h
 create mode 100644 include/hw/virtio/vhost-vdpa-blk.h

-- 
2.25.1