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authorGautam Dawar <gautam.dawar@xilinx.com>2022-03-30 21:03:54 +0300
committerMichael S. Tsirkin <mst@redhat.com>2022-05-31 19:44:31 +0300
commit84d7c8fd3aade2fe79313003ed06ede431ec2a6d (patch)
tree4ef7ded8746bf8484e40ca667ba927a6480430ec /drivers/vhost
parent2d1fcb7758e49fd9caf150f3c70804b95b2ce80c (diff)
downloadlinux-84d7c8fd3aade2fe79313003ed06ede431ec2a6d.tar.xz
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.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index aa5cacdc5263..6c7ee0f18892 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)