diff mbox series

[PULL,v2,28/55] hw/vhost-user-blk: turn on VIRTIO_BLK_F_SIZE_MAX feature for virtio blk device

Message ID 20220107102526.39238-29-mst@redhat.com
State New
Headers show
Series [PULL,v2,01/55] virtio-mem: Don't skip alignment checks when warning about block size | expand

Commit Message

Michael S. Tsirkin Jan. 7, 2022, 11:04 a.m. UTC 
From: Andy Pei <andy.pei@intel.com>

Turn on pre-defined feature VIRTIO_BLK_F_SIZE_MAX for virtio blk device to
avoid guest DMA request sizes which are too large for hardware spec.

Signed-off-by: Andy Pei <andy.pei@intel.com>
Message-Id: <1641202092-149677-1-git-send-email-andy.pei@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
---
 hw/block/vhost-user-blk.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
index ab11ce8252..1a42ae9187 100644
--- a/hw/block/vhost-user-blk.c
+++ b/hw/block/vhost-user-blk.c
@@ -252,6 +252,7 @@  static uint64_t vhost_user_blk_get_features(VirtIODevice *vdev,
     VHostUserBlk *s = VHOST_USER_BLK(vdev);
 
     /* Turn on pre-defined features */
+    virtio_add_feature(&features, VIRTIO_BLK_F_SIZE_MAX);
     virtio_add_feature(&features, VIRTIO_BLK_F_SEG_MAX);
     virtio_add_feature(&features, VIRTIO_BLK_F_GEOMETRY);
     virtio_add_feature(&features, VIRTIO_BLK_F_TOPOLOGY);