block/blkio: support 'fd' option for virtio-blk-vhost-vdpa driver

[PATCH v3 0/1] block/blkio: support 'fd' option for virtio-blk-vhost-vdpa driver

Stefano Garzarella posted 1 patch 12 months ago

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Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20230511091527.46620-1-sgarzare@redhat.com

Maintainers: Stefan Hajnoczi <stefanha@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>

block/blkio.c | 53 ++++++++++++++++++++++++++++++++++++++++++---------
1 file changed, 44 insertions(+), 9 deletions(-)

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[PATCH v3 0/1] block/blkio: support 'fd' option for virtio-blk-vhost-vdpa driver

Posted by Stefano Garzarella 12 months ago

v3:
- 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 (1):
  block/blkio: use qemu_open() to support fd passing for virtio-blk

 block/blkio.c | 53 ++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 44 insertions(+), 9 deletions(-)

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2.40.1