search for: map_reqs

...eq_sync(vdomain->viommu, req); + kfree(req); if (ret) return 0; @@ -626,12 +647,16 @@ static size_t viommu_map_sg(struct iommu_domain *domain, unsigned long iova, unsigned long mapped_iova; size_t top_size, bottom_size; struct viommu_request reqs[nents]; - struct virtio_iommu_req_map map_reqs[nents]; + struct virtio_iommu_req_map *map_reqs; struct viommu_domain *vdomain = to_viommu_domain(domain); if (!vdomain->attached) return 0; + map_reqs = kcalloc(nents, sizeof(*map_reqs), GFP_KERNEL); + if (!map_reqs) + return -ENOMEM; + pr_debug("map_sg %llu %u 0x%lx\n", v...

...rot) +{ + int i, ret; + int nr_sent; + size_t mapped; + size_t min_pagesz; + size_t total_size; + struct scatterlist *s; + unsigned int flags = 0; + unsigned long cur_iova; + unsigned long mapped_iova; + size_t head_size, tail_size; + struct viommu_request reqs[nents]; + struct virtio_iommu_req_map map_reqs[nents]; + struct viommu_domain *vdomain = to_viommu_domain(domain); + + if (!vdomain->attached) + return 0; + + pr_debug("map_sg %llu %u 0x%lx\n", vdomain->id, nents, iova); + + if (prot & IOMMU_READ) + flags |= VIRTIO_IOMMU_MAP_F_READ; + + if (prot & IOMMU_WRITE) + flags...

...mapped; > + size_t min_pagesz; > + size_t total_size; > + struct scatterlist *s; > + unsigned int flags = 0; > + unsigned long cur_iova; > + unsigned long mapped_iova; > + size_t head_size, tail_size; > + struct viommu_request reqs[nents]; > + struct virtio_iommu_req_map map_reqs[nents]; > + struct viommu_domain *vdomain = to_viommu_domain(domain); > + > + if (!vdomain->attached) > + return 0; > + > + pr_debug("map_sg %llu %u 0x%lx\n", vdomain->id, nents, iova); > + > + if (prot & IOMMU_READ) > + flags |= VIRTIO_IOMMU_MAP_F_R...

...mapped; > + size_t min_pagesz; > + size_t total_size; > + struct scatterlist *s; > + unsigned int flags = 0; > + unsigned long cur_iova; > + unsigned long mapped_iova; > + size_t head_size, tail_size; > + struct viommu_request reqs[nents]; > + struct virtio_iommu_req_map map_reqs[nents]; > + struct viommu_domain *vdomain = to_viommu_domain(domain); > + > + if (!vdomain->attached) > + return 0; > + > + pr_debug("map_sg %llu %u 0x%lx\n", vdomain->id, nents, iova); > + > + if (prot & IOMMU_READ) > + flags |= VIRTIO_IOMMU_MAP_F_R...

This is the continuation of my proposal for virtio-iommu, the para- virtualized IOMMU. Here is a summary of the changes since last time [1]: * The virtio-iommu document now resembles an actual specification. It is split into a formal description of the virtio device, and implementation notes. Please find sources and binaries at [2]. * Added a probe request to describe to the guest different

This is the continuation of my proposal for virtio-iommu, the para- virtualized IOMMU. Here is a summary of the changes since last time [1]: * The virtio-iommu document now resembles an actual specification. It is split into a formal description of the virtio device, and implementation notes. Please find sources and binaries at [2]. * Added a probe request to describe to the guest different

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

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place