search for: viommu_map_sg

...ap) { + .head.type = VIRTIO_IOMMU_T_UNMAP, + .address_space = cpu_to_le32(vdomain->id), + .virt_addr = cpu_to_le64(iova), + .size = cpu_to_le64(unmapped), + }; + + ret = viommu_send_req_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); i...

...f (!vdomain->attached) + return size; + + unmapped = viommu_tlb_unmap(vdomain, iova, size); + if (unmapped < size) + return 0; + + req.size = cpu_to_le64(unmapped); + + ret = viommu_send_req_sync(vdomain->viommu, &req); + if (ret) + return 0; + + return unmapped; +} + +static size_t viommu_map_sg(struct iommu_domain *domain, unsigned long iova, + struct scatterlist *sg, unsigned int nents, int prot) +{ + 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 mapp...

...lb_unmap(vdomain, iova, size); > + if (unmapped < size) > + return 0; > + > + req.size = cpu_to_le64(unmapped); > + > + ret = viommu_send_req_sync(vdomain->viommu, &req); > + if (ret) > + return 0; > + > + return unmapped; > +} > + > +static size_t viommu_map_sg(struct iommu_domain *domain, unsigned > long iova, > + struct scatterlist *sg, unsigned int nents, int prot) { > + int i, ret; > + int nr_sent; > + size_t mapped; > + size_t min_pagesz; > + size_t total_size; > + struct scatterlist *s; > + unsigned int flags = 0; &g...

...lb_unmap(vdomain, iova, size); > + if (unmapped < size) > + return 0; > + > + req.size = cpu_to_le64(unmapped); > + > + ret = viommu_send_req_sync(vdomain->viommu, &req); > + if (ret) > + return 0; > + > + return unmapped; > +} > + > +static size_t viommu_map_sg(struct iommu_domain *domain, unsigned > long iova, > + struct scatterlist *sg, unsigned int nents, int prot) { > + int i, ret; > + int nr_sent; > + size_t mapped; > + size_t min_pagesz; > + size_t total_size; > + struct scatterlist *s; > + unsigned int flags = 0; &g...

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