search for: batch_end

...ants update the device IOTLB in a > > > batch, it may do: > > > > > > 1) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_BEGIN flag > > > 2) Perform a batch of IOTLB updating via VHOST_IOTLB_UPDATE/INVALIDATE > > > 3) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_END flag > > As long as we are extending the interface, > > is there some way we could cut down the number of system calls needed > > here? > > > I'm not sure it's worth to do that since usually we only have less than 10 > regions. Well with a guest iommu I'...

...dating hints > form userspace. When userspace wants update the device IOTLB in a > batch, it may do: > > 1) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_BEGIN flag > 2) Perform a batch of IOTLB updating via VHOST_IOTLB_UPDATE/INVALIDATE > 3) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_END flag As long as we are extending the interface, is there some way we could cut down the number of system calls needed here? > > Vhost-vdpa may decide to batch the IOMMU/IOTLB updating in step 3 when > vDPA device support set_map() ops. This is useful for the vDPA device > that want...

...dating hints > form userspace. When userspace wants update the device IOTLB in a > batch, it may do: > > 1) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_BEGIN flag > 2) Perform a batch of IOTLB updating via VHOST_IOTLB_UPDATE/INVALIDATE > 3) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_END flag As long as we are extending the interface, is there some way we could cut down the number of system calls needed here? > > Vhost-vdpa may decide to batch the IOMMU/IOTLB updating in step 3 when > vDPA device support set_map() ops. This is useful for the vDPA device > that want...