search for: viommu_tlb_unmap

....size = cpu_to_le64(size), + }; + + if (prot & IOMMU_READ) + req->flags |= cpu_to_le32(VIRTIO_IOMMU_MAP_F_READ); + + if (prot & IOMMU_WRITE) + req->flags |= cpu_to_le32(VIRTIO_IOMMU_MAP_F_WRITE); + + ret = viommu_send_req_sync(vdomain->viommu, req); + kfree(req); if (ret) viommu_tlb_unmap(vdomain, iova, size); @@ -587,11 +602,7 @@ static size_t viommu_unmap(struct iommu_domain *domain, unsigned long iova, int ret; size_t unmapped; struct viommu_domain *vdomain = to_viommu_domain(domain); - struct virtio_iommu_req_unmap req = { - .head.type = VIRTIO_IOMMU_T_UNMAP, - .address...

...gt;iova.start = iova; + mapping->iova.last = iova + size - 1; + + spin_lock_irqsave(&vdomain->mappings_lock, flags); + interval_tree_insert(&mapping->iova, &vdomain->mappings); + spin_unlock_irqrestore(&vdomain->mappings_lock, flags); + + return 0; +} + +static size_t viommu_tlb_unmap(struct viommu_domain *vdomain, + unsigned long iova, size_t size) +{ + size_t unmapped = 0; + unsigned long flags; + unsigned long last = iova + size - 1; + struct viommu_mapping *mapping = NULL; + struct interval_tree_node *node, *next; + + spin_lock_irqsave(&vdomain->mappings_lock...

...= iova + size - 1; > + > + spin_lock_irqsave(&vdomain->mappings_lock, flags); > + interval_tree_insert(&mapping->iova, &vdomain->mappings); > + spin_unlock_irqrestore(&vdomain->mappings_lock, flags); > + > + return 0; > +} > + > +static size_t viommu_tlb_unmap(struct viommu_domain *vdomain, > + unsigned long iova, size_t size) { > + size_t unmapped = 0; > + unsigned long flags; > + unsigned long last = iova + size - 1; > + struct viommu_mapping *mapping = NULL; > + struct interval_tree_node *node, *next; > + > + spin_lock...

...= iova + size - 1; > + > + spin_lock_irqsave(&vdomain->mappings_lock, flags); > + interval_tree_insert(&mapping->iova, &vdomain->mappings); > + spin_unlock_irqrestore(&vdomain->mappings_lock, flags); > + > + return 0; > +} > + > +static size_t viommu_tlb_unmap(struct viommu_domain *vdomain, > + unsigned long iova, size_t size) { > + size_t unmapped = 0; > + unsigned long flags; > + unsigned long last = iova + size - 1; > + struct viommu_mapping *mapping = NULL; > + struct interval_tree_node *node, *next; > + > + spin_lock...

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

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