diff options
| author | Gautam Dawar <gautam.dawar@xilinx.com> | 2022-03-30 23:33:54 +0530 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-05-31 12:44:31 -0400 |
| commit | 84d7c8fd3aade2fe79313003ed06ede431ec2a6d (patch) | |
| tree | 4ef7ded8746bf8484e40ca667ba927a6480430ec /drivers/vhost | |
| parent | 2d1fcb7758e49fd9caf150f3c70804b95b2ce80c (diff) | |
| download | linux-84d7c8fd3aade2fe79313003ed06ede431ec2a6d.tar.gz | |
vhost-vdpa: introduce uAPI to set group ASID
Follows the vDPA support for associating ASID to a specific virtqueue
group. This patch adds a uAPI to support setting them from userspace.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Gautam Dawar <gdawar@xilinx.com>
Message-Id: <20220330180436.24644-15-gdawar@xilinx.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/vdpa.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index aa5cacdc52630..6c7ee0f18892a 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -473,6 +473,14 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, else if (copy_to_user(argp, &s, sizeof(s))) return -EFAULT; return 0; + case VHOST_VDPA_SET_GROUP_ASID: + if (copy_from_user(&s, argp, sizeof(s))) + return -EFAULT; + if (s.num >= vdpa->nas) + return -EINVAL; + if (!ops->set_group_asid) + return -EOPNOTSUPP; + return ops->set_group_asid(vdpa, idx, s.num); case VHOST_GET_VRING_BASE: r = ops->get_vq_state(v->vdpa, idx, &vq_state); if (r) |