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| author | Eugenio Pérez <eperezma@redhat.com> | 2022-06-23 18:07:36 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-06-27 08:05:35 -0400 |
| commit | 94ab17d00bbfe73d05477ca75346196e8bd831db (patch) | |
| tree | 3ad6acd3f9551c4d5dad53361f796c18ae1efe58 /include/uapi | |
| parent | b8f6770624f699d3ead20b9589fb849665f26ded (diff) | |
| download | linux-next-94ab17d00bbfe73d05477ca75346196e8bd831db.tar.gz linux-next-94ab17d00bbfe73d05477ca75346196e8bd831db.zip | |
vhost-vdpa: introduce SUSPEND backend feature bit
Userland knows if it can suspend the device or not by checking this feature
bit.
It's only offered if the vdpa driver backend implements the suspend()
operation callback, and to offer it or userland to ack it if the backend
does not offer that callback is an error.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20220623160738.632852-3-eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/vhost_types.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/vhost_types.h b/include/uapi/linux/vhost_types.h index 634cee485abb..1bdd6e363f4c 100644 --- a/include/uapi/linux/vhost_types.h +++ b/include/uapi/linux/vhost_types.h @@ -161,5 +161,7 @@ struct vhost_vdpa_iova_range { * message */ #define VHOST_BACKEND_F_IOTLB_ASID 0x3 +/* Device can be suspended */ +#define VHOST_BACKEND_F_SUSPEND 0x4 #endif |