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| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2024-02-18 19:56:05 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-19 07:45:51 +0100 |
| commit | ae1374b7f72c973631ce881a654664fd2b40c4b9 (patch) | |
| tree | d5cfa59322f8b8275b886e501222d2fb41cf1621 /drivers/vdpa | |
| parent | vDPA: report virtio-block write zeroes configuration to user space (diff) | |
| download | linux-ae1374b7f72c973631ce881a654664fd2b40c4b9.tar.xz linux-ae1374b7f72c973631ce881a654664fd2b40c4b9.zip | |
vDPA: report virtio-block read-only info to user space
This commit report read-only information of
virtio-blk devices to user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-10-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/vdpa.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index bcea9f880042..2d02ea60af0c 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -1084,6 +1084,17 @@ vdpa_dev_blk_write_zeroes_config_fill(struct sk_buff *msg, u64 features, return 0; } +static int vdpa_dev_blk_ro_config_fill(struct sk_buff *msg, u64 features) +{ + u8 ro; + + ro = ((features & BIT_ULL(VIRTIO_BLK_F_RO)) == 0) ? 0 : 1; + if (nla_put_u8(msg, VDPA_ATTR_DEV_BLK_CFG_READ_ONLY, ro)) + return -EMSGSIZE; + + return 0; +} + static int vdpa_dev_blk_config_fill(struct vdpa_device *vdev, struct sk_buff *msg) { @@ -1122,6 +1133,9 @@ static int vdpa_dev_blk_config_fill(struct vdpa_device *vdev, if (vdpa_dev_blk_write_zeroes_config_fill(msg, features_device, &config)) return -EMSGSIZE; + if (vdpa_dev_blk_ro_config_fill(msg, features_device)) + return -EMSGSIZE; + return 0; } |