diff options
| author | Si-Wei Liu <si-wei.liu@oracle.com> | 2024-02-14 03:28:00 -0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-12 17:56:55 -0400 |
| commit | bb000fff0a1d9774444c431e0831550e99e159ce (patch) | |
| tree | eb8e6d2f3b5e598e1f8c26d0b37a4b98655ef4f2 | |
| parent | 1c4eab477fb0aa5a039513c26dac63d3460e1b08 (diff) | |
vdpa: define SVQ transitioning state for mode switching
Will be used in following patches.
DISABLING(-1) means SVQ is being switched off to passthrough
mode.
ENABLING(1) means passthrough VQs are being switched to SVQ.
DONE(0) means SVQ switching is completed.
Message-Id: <1707910082-10243-11-git-send-email-si-wei.liu@oracle.com>
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | include/hw/virtio/vhost-vdpa.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index 8f54e5edd4..0a9575b469 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -30,6 +30,12 @@ typedef struct VhostVDPAHostNotifier { void *addr; } VhostVDPAHostNotifier; +typedef enum SVQTransitionState { + SVQ_TSTATE_DISABLING = -1, + SVQ_TSTATE_DONE, + SVQ_TSTATE_ENABLING +} SVQTransitionState; + /* Info shared by all vhost_vdpa device models */ typedef struct vhost_vdpa_shared { int device_fd; @@ -47,6 +53,9 @@ typedef struct vhost_vdpa_shared { /* Vdpa must send shadow addresses as IOTLB key for data queues, not GPA */ bool shadow_data; + + /* SVQ switching is in progress, or already completed? */ + SVQTransitionState svq_switching; } VhostVDPAShared; typedef struct vhost_vdpa { |