diff options
| -rw-r--r-- | drivers/vdpa/vdpa.c | 14 | ||||
| -rw-r--r-- | include/uapi/linux/vdpa.h | 1 |
2 files changed, 15 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; } diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 797d5708492f..4be8e3a15874 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -70,6 +70,7 @@ enum vdpa_attr { VDPA_ATTR_DEV_BLK_CFG_DISCARD_SEC_ALIGN,/* u32 */ VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEC, /* u32 */ VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEG, /* u32 */ + VDPA_ATTR_DEV_BLK_CFG_READ_ONLY, /* u8 */ /* new attributes must be added above here */ VDPA_ATTR_MAX, |