[PATCH v4 0/2] block/blkio: support fd passing for virtio-blk-vhost-vdpa driver

[Stefano Garzarella <sgarzare@redhat.com>]

v4:
- added patch 02 to allow libvirt to discover we support fdset [Markus]
- modified the commit description of patch 01

v3: https://lore.kernel.org/qemu-devel/20230511091527.46620-1-sgarzare@redhat.com/
- use qemu_open() on `path` to simplify libvirt code [Jonathon]
- remove patch 01 since we are not using monitor_fd_param() anymore

v2: https://lore.kernel.org/qemu-devel/20230504092843.62493-1-sgarzare@redhat.com/
- added patch 01 to use monitor_fd_param() in the blkio module
- use monitor_fd_param() to parse the fd like vhost devices [Stefan]

v1: https://lore.kernel.org/qemu-devel/20230502145050.224615-1-sgarzare@redhat.com/

The virtio-blk-vhost-vdpa driver in libblkio 1.3.0 supports the new
'fd' property. Let's expose this to the user, so the management layer
can pass the file descriptor of an already opened vhost-vdpa character
device. This is useful especially when the device can only be accessed
with certain privileges.

Stefano Garzarella (2):
  block/blkio: use qemu_open() to support fd passing for virtio-blk
  qapi: add '@fdset' feature for BlockdevOptionsVirtioBlkVhostVdpa

 meson.build          |  4 ++++
 qapi/block-core.json |  8 ++++++-
 block/blkio.c        | 53 ++++++++++++++++++++++++++++++++++++--------
 3 files changed, 55 insertions(+), 10 deletions(-)

-- 
2.40.1