search for: nr_expected

...e = sizeof(r.detach); + break; + case VIRTIO_IOMMU_T_MAP: + size = sizeof(r.map); + break; + case VIRTIO_IOMMU_T_UNMAP: + size = sizeof(r.unmap); + break; + default: + return -EINVAL; + } + + *head = size - *tail; + return 0; +} + +static int viommu_receive_resp(struct viommu_dev *viommu, int nr_expected) +{ + + unsigned int len; + int nr_received = 0; + struct viommu_request *req, *pending, *next; + + pending = list_first_entry_or_null(&viommu->pending_requests, + struct viommu_request, list); + if (WARN_ON(!pending)) + return 0; + + while ((req = virtqueue_get_buf(viommu->vq, &a...

...zeof(r.map); > + break; > + case VIRTIO_IOMMU_T_UNMAP: > + size = sizeof(r.unmap); > + break; > + default: > + return -EINVAL; > + } > + > + *head = size - *tail; > + return 0; > +} > + > +static int viommu_receive_resp(struct viommu_dev *viommu, int > +nr_expected) { > + > + unsigned int len; > + int nr_received = 0; > + struct viommu_request *req, *pending, *next; > + > + pending = list_first_entry_or_null(&viommu->pending_requests, > + struct viommu_request, list); > + if (WARN_ON(!pending)) > + return 0; > + &g...

...zeof(r.map); > + break; > + case VIRTIO_IOMMU_T_UNMAP: > + size = sizeof(r.unmap); > + break; > + default: > + return -EINVAL; > + } > + > + *head = size - *tail; > + return 0; > +} > + > +static int viommu_receive_resp(struct viommu_dev *viommu, int > +nr_expected) { > + > + unsigned int len; > + int nr_received = 0; > + struct viommu_request *req, *pending, *next; > + > + pending = list_first_entry_or_null(&viommu->pending_requests, > + struct viommu_request, list); > + if (WARN_ON(!pending)) > + return 0; > + &g...

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future