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-sgarz...@redhat.com/
[2] https://lore.kernel.org/kvm/20210331080519.172-1-xieyon...@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
