search for: vhost_backend_f_resum

Displaying 7 results from an estimated 7 matches for "vhost_backend_f_resum".

Did you mean: vhost_backend_f_resume
[PATCH RFC v2 2/3] vhost-vdpa: introduce descriptor group backend feature
2023 Sep 09
0
[PATCH RFC v2 2/3] vhost-vdpa: introduce descriptor group backend feature
...@@ static long vhost_vdpa_unlocked_ioctl(struct file *filep, if (copy_from_user(&features, featurep, sizeof(features))) return -EFAULT; if (features & ~(VHOST_VDPA_BACKEND_FEATURES | + BIT_ULL(VHOST_BACKEND_F_DESC_ASID) | BIT_ULL(VHOST_BACKEND_F_SUSPEND) | BIT_ULL(VHOST_BACKEND_F_RESUME))) return -EOPNOTSUPP; @@ -688,6 +697,12 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep, if ((features & BIT_ULL(VHOST_BACKEND_F_RESUME)) && !vhost_vdpa_can_resume(v)) return -EOPNOTSUPP; + if ((features & BIT_ULL(VHOST_BACKEND_F_DESC_ASID)) &&a...
[PATCH RFC v2 0/3] vdpa: dedicated descriptor table group
2023 Sep 09
4
[PATCH RFC v2 0/3] vdpa: dedicated descriptor table group
Following patchset introduces dedicated group for descriptor table to reduce live migration downtime when passthrough VQ is being switched to shadow VQ. This RFC v2 is sent to incorporate the early feedback from reviewers on the uAPI and driver API part of changes, the associated driver patch set consuming ths API will come around soon along with formal submission of this series. Some initial
[PATCH RFC v2 0/4] vdpa: decouple reset of iotlb mapping from device reset
2023 Sep 09
4
[PATCH RFC v2 0/4] vdpa: decouple reset of iotlb mapping from device reset
In order to reduce needlessly high setup and teardown cost of iotlb mapping during live migration, it's crucial to decouple the vhost-vdpa iotlb abstraction from the virtio device life cycle, i.e. iotlb mappings should be left intact across virtio device reset [1]. For it to work, the on-chip IOMMU parent device should implement a separate .reset_map() operation callback to restore 1:1 DMA
[PATCH RFC v3 0/4] vdpa: decouple reset of iotlb mapping from device reset
2023 Sep 09
4
[PATCH RFC v3 0/4] vdpa: decouple reset of iotlb mapping from device reset
In order to reduce needlessly high setup and teardown cost of iotlb mapping during live migration, it's crucial to decouple the vhost-vdpa iotlb abstraction from the virtio device life cycle, i.e. iotlb mappings should be left intact across virtio device reset [1]. For it to work, the on-chip IOMMU parent device should implement a separate .reset_map() operation callback to restore 1:1 DMA
[PATCH] vdpa: reject F_ENABLE_AFTER_DRIVER_OK if backend does not support it
2023 Jul 03
0
[PATCH] vdpa: reject F_ENABLE_AFTER_DRIVER_OK if backend does not support it
...;features, featurep, sizeof(features))) > return -EFAULT; > + if (ops->get_backend_features) > + parent_features = ops->get_backend_features(v->vdpa); > if (features & ~(VHOST_VDPA_BACKEND_FEATURES | > BIT_ULL(VHOST_BACKEND_F_SUSPEND) | > BIT_ULL(VHOST_BACKEND_F_RESUME) | > - BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK))) > + parent_features)) > return -EOPNOTSUPP; > if ((features & BIT_ULL(VHOST_BACKEND_F_SUSPEND)) && > !vhost_vdpa_can_suspend(v)) > -- > 2.39.3
[PATCH] vdpa: reject F_ENABLE_AFTER_DRIVER_OK if backend does not support it
2023 Jul 04
1
[PATCH] vdpa: reject F_ENABLE_AFTER_DRIVER_OK if backend does not support it
...t; + parent_features = ops->get_backend_features(v->vdpa); > > > if (features & ~(VHOST_VDPA_BACKEND_FEATURES | > > > BIT_ULL(VHOST_BACKEND_F_SUSPEND) | > > > BIT_ULL(VHOST_BACKEND_F_RESUME) | > > > - BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK))) > > > + parent_features)) > > > return -EOPNOTSUPP; > > > if ((features & BIT_ULL(VHOST_BACKEND_F_SUSPE...
[PATCH] vdpa: reject F_ENABLE_AFTER_DRIVER_OK if backend does not support it
2023 Jul 04
1
[PATCH] vdpa: reject F_ENABLE_AFTER_DRIVER_OK if backend does not support it
...t_features = ops->get_backend_features(v->vdpa); > > > > > if (features & ~(VHOST_VDPA_BACKEND_FEATURES | > > > > > BIT_ULL(VHOST_BACKEND_F_SUSPEND) | > > > > > BIT_ULL(VHOST_BACKEND_F_RESUME) | > > > > > - BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK))) > > > > > + parent_features)) > > > > > return -EOPNOTSUPP; > > > > > if ((feat...