diff options
| author | Si-Wei Liu <si-wei.liu@oracle.com> | 2022-10-08 00:58:58 -0700 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2022-10-28 13:28:52 +0800 |
| commit | 8801ccd0500437a86e3d15a806f37ebb84605dce (patch) | |
| tree | e8af6b1fe75b2bc515ac35aeec043f3654ffc9a2 /qemu-options.hx | |
| parent | 6ce262fbe7744a3d82d872e232fd0d39cfba0363 (diff) | |
vhost-vdpa: allow passing opened vhostfd to vhost-vdpa
Similar to other vhost backends, vhostfd can be passed to vhost-vdpa
backend as another parameter to instantiate vhost-vdpa net client.
This would benefit the use case where only open file descriptors, as
opposed to raw vhost-vdpa device paths, are accessible from the QEMU
process.
(qemu) netdev_add type=vhost-vdpa,vhostfd=61,id=vhost-vdpa1
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index eb38e5dc40..876a70aa63 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2790,8 +2790,10 @@ DEF("netdev", HAS_ARG, QEMU_OPTION_netdev, " configure a vhost-user network, backed by a chardev 'dev'\n" #endif #ifdef __linux__ - "-netdev vhost-vdpa,id=str,vhostdev=/path/to/dev\n" + "-netdev vhost-vdpa,id=str[,vhostdev=/path/to/dev][,vhostfd=h]\n" " configure a vhost-vdpa network,Establish a vhost-vdpa netdev\n" + " use 'vhostdev=/path/to/dev' to open a vhost vdpa device\n" + " use 'vhostfd=h' to connect to an already opened vhost vdpa device\n" #endif #ifdef CONFIG_VMNET "-netdev vmnet-host,id=str[,isolated=on|off][,net-uuid=uuid]\n" @@ -3296,7 +3298,7 @@ SRST -netdev type=vhost-user,id=net0,chardev=chr0 \ -device virtio-net-pci,netdev=net0 -``-netdev vhost-vdpa,vhostdev=/path/to/dev`` +``-netdev vhost-vdpa[,vhostdev=/path/to/dev][,vhostfd=h]`` Establish a vhost-vdpa netdev. vDPA device is a device that uses a datapath which complies with |