diff options
| author | Gautam Dawar <gautam.dawar@xilinx.com> | 2022-03-30 20:03:52 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-05-31 18:44:30 +0200 |
| commit | a0c95f201170bd559737d3cdc8a950aea62f29c6 (patch) | |
| tree | c97c0587b979fb484e0f0e226035805fb93dad78 | |
| parent | vhost-vdpa: introduce uAPI to get the number of virtqueue groups (diff) | |
| download | linux-a0c95f201170bd559737d3cdc8a950aea62f29c6.tar.xz linux-a0c95f201170bd559737d3cdc8a950aea62f29c6.zip | |
vhost-vdpa: introduce uAPI to get the number of address spaces
This patch introduces the uAPI for getting the number of address
spaces supported by this vDPA device.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Gautam Dawar <gdawar@xilinx.com>
Message-Id: <20220330180436.24644-13-gdawar@xilinx.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | drivers/vhost/vdpa.c | 3 | ||||
| -rw-r--r-- | include/uapi/linux/vhost.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 92f78df0f685..a017011ad1f5 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -563,6 +563,9 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep, r = copy_to_user(argp, &v->vdpa->ngroups, sizeof(v->vdpa->ngroups)); break; + case VHOST_VDPA_GET_AS_NUM: + r = copy_to_user(argp, &v->vdpa->nas, sizeof(v->vdpa->nas)); + break; case VHOST_SET_LOG_BASE: case VHOST_SET_LOG_FD: r = -ENOIOCTLCMD; diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index 61317c61d768..51322008901a 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -154,4 +154,6 @@ /* Get the number of virtqueue groups. */ #define VHOST_VDPA_GET_GROUP_NUM _IOR(VHOST_VIRTIO, 0x81, __u32) +/* Get the number of address spaces. */ +#define VHOST_VDPA_GET_AS_NUM _IOR(VHOST_VIRTIO, 0x7A, unsigned int) #endif |