search for: virtio_iommu_t_probe

...mmu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -129,6 +132,9 @@ static off_t viommu_get_req_offset(struct viommu_dev *viommu, > { > size_t tail_size = sizeof(struct virtio_iommu_req_tail); > > + if (req->type == VIRTIO_IOMMU_T_PROBE) > + return len - viommu->probe_size - tail_size; > + > return len - tail_size; > } > > @@ -414,6 +420,101 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static int viommu_add_resv_mem(struct viommu_endpoint *vd...

...struct viommu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -139,6 +141,10 @@ static int viommu_get_req_size(struct viommu_dev *viommu, > case VIRTIO_IOMMU_T_UNMAP: > size = sizeof(r->unmap); > break; > + case VIRTIO_IOMMU_T_PROBE: > + *bottom += viommu->probe_size; > + size = sizeof(r->probe) + *bottom; > + break; > default: > return -EINVAL; > } > @@ -448,6 +454,106 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static int vio...

...v; struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -129,6 +132,9 @@ static off_t viommu_get_req_offset(struct viommu_dev *viommu, { size_t tail_size = sizeof(struct virtio_iommu_req_tail); + if (req->type == VIRTIO_IOMMU_T_PROBE) + return len - viommu->probe_size - tail_size; + return len - tail_size; } @@ -414,6 +420,101 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) return ret; } +static int viommu_add_resv_mem(struct viommu_endpoint *vdev, + struct virtio_iommu_probe_resv_mem...

...v; struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -121,6 +124,9 @@ static off_t viommu_get_req_offset(struct viommu_dev *viommu, { size_t tail_size = sizeof(struct virtio_iommu_req_tail); + if (req->type == VIRTIO_IOMMU_T_PROBE) + return len - viommu->probe_size - tail_size; + return len - tail_size; } @@ -404,6 +410,103 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) return ret; } +static int viommu_add_resv_mem(struct viommu_endpoint *vdev, + struct virtio_iommu_probe_resv_mem...

...v; struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -119,6 +122,9 @@ static off_t viommu_get_req_offset(struct viommu_dev *viommu, { size_t tail_size = sizeof(struct virtio_iommu_req_tail); + if (req->type == VIRTIO_IOMMU_T_PROBE) + return len - viommu->probe_size - tail_size; + return len - tail_size; } @@ -394,6 +400,110 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) return ret; } +static int viommu_add_resv_mem(struct viommu_endpoint *vdev, + struct virtio_iommu_probe_resv_mem...

...mmu_endpoint { struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -140,6 +142,10 @@ static int viommu_get_req_size(struct viommu_dev *viommu, case VIRTIO_IOMMU_T_UNMAP: size = sizeof(r->unmap); break; + case VIRTIO_IOMMU_T_PROBE: + *bottom += viommu->probe_size; + size = sizeof(r->probe) + *bottom; + break; default: return -EINVAL; } @@ -448,6 +454,105 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) return ret; } +static int viommu_add_resv_mem(struct viommu_endpoint *vdev, +...

...mmu_endpoint { struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -139,6 +141,10 @@ static int viommu_get_req_size(struct viommu_dev *viommu, case VIRTIO_IOMMU_T_UNMAP: size = sizeof(r->unmap); break; + case VIRTIO_IOMMU_T_PROBE: + *bottom += viommu->probe_size; + size = sizeof(r->probe) + *bottom; + break; default: return -EINVAL; } @@ -448,6 +454,106 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) return ret; } +static int viommu_add_resv_mem(struct viommu_endpoint *vdev, +...

...mmu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -129,6 +132,9 @@ static off_t viommu_get_req_offset(struct viommu_dev *viommu, > { > size_t tail_size = sizeof(struct virtio_iommu_req_tail); > > + if (req->type == VIRTIO_IOMMU_T_PROBE) > + return len - viommu->probe_size - tail_size; > + > return len - tail_size; > } > > @@ -414,6 +420,101 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static int viommu_add_resv_mem(struct viommu_endpoint *vd...

...mmu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -121,6 +124,9 @@ static off_t viommu_get_req_offset(struct viommu_dev *viommu, > { > size_t tail_size = sizeof(struct virtio_iommu_req_tail); > > + if (req->type == VIRTIO_IOMMU_T_PROBE) > + return len - viommu->probe_size - tail_size; > + > return len - tail_size; > } > > @@ -404,6 +410,103 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static int viommu_add_resv_mem(struct viommu_endpoint *vd...

...ct viommu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -140,6 +142,10 @@ static int viommu_get_req_size(struct viommu_dev *viommu, > case VIRTIO_IOMMU_T_UNMAP: > size = sizeof(r->unmap); > break; > + case VIRTIO_IOMMU_T_PROBE: > + *bottom += viommu->probe_size; > + size = sizeof(r->probe) + *bottom; > + break; > default: > return -EINVAL; > } > @@ -448,6 +454,105 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static i...

...struct viommu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -139,6 +141,10 @@ static int viommu_get_req_size(struct viommu_dev *viommu, > case VIRTIO_IOMMU_T_UNMAP: > size = sizeof(r->unmap); > break; > + case VIRTIO_IOMMU_T_PROBE: > + *bottom += viommu->probe_size; > + size = sizeof(r->probe) + *bottom; > + break; > default: > return -EINVAL; > } > @@ -448,6 +454,106 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static int vio...

...struct viommu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu_request { > @@ -139,6 +141,10 @@ static int viommu_get_req_size(struct viommu_dev *viommu, > case VIRTIO_IOMMU_T_UNMAP: > size = sizeof(r->unmap); > break; > + case VIRTIO_IOMMU_T_PROBE: > + *bottom += viommu->probe_size; > + size = sizeof(r->probe) + *bottom; > + break; > default: > return -EINVAL; > } > @@ -448,6 +454,106 @@ static int viommu_replay_mappings(struct viommu_domain *vdomain) > return ret; > } > > +static int vio...

Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v2 [2]: * Patches 2-4 allow virtio-iommu to use the PCI transport, since QEMU would like to phase out the MMIO transport. This produces a complex topology where the programming interface of the IOMMU could appear lower than the endpoints that it translates. It's not unheard of (e.g. AMD IOMMU), and the

Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v2 [2]: * Patches 2-4 allow virtio-iommu to use the PCI transport, since QEMU would like to phase out the MMIO transport. This produces a complex topology where the programming interface of the IOMMU could appear lower than the endpoints that it translates. It's not unheard of (e.g. AMD IOMMU), and the

Implement the virtio-iommu driver following version 0.5 of the specification [1]. Previous version of this code was sent back in April [2], implementing the first public RFC. Since then there has been lots of progress and discussion on the specification side, and I think the driver is in a good shape now. The reason patches 1-3 are only RFC is that I'm waiting on feedback from the Virtio TC

Implement the virtio-iommu driver following version 0.5 of the specification [1]. Previous version of this code was sent back in April [2], implementing the first public RFC. Since then there has been lots of progress and discussion on the specification side, and I think the driver is in a good shape now. The reason patches 1-3 are only RFC is that I'm waiting on feedback from the Virtio TC

Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v3 [2]: * Rebase onto v4.20-rc2. Patch 3 now touches drivers/of/base.c instead of drivers/pci/of.c, since the map_rid() function has moved. * Removed the request timeout, that depended on DEBUG. * Other small fixes addressing comments on v3. You can find Linux driver and kvmtool device on my virtio-iommu/v0.8.1

Implement the base virtio-iommu driver, following version 0.7 of the specification [1]. Changes since last version [2]: * Address comments, thanks again for the review. * As suggested, add a DT binding description in patch 1. * Depend on VIRTIO_MMIO=y to fix a build failure? * Switch to v0.7 of the spec, which changes resv_mem parameters and adds an MMIO flag. These are trivial but not backward

Implement the base virtio-iommu driver, following version 0.7 of the specification [1]. Changes since last version [2]: * Address comments, thanks again for the review. * As suggested, add a DT binding description in patch 1. * Depend on VIRTIO_MMIO=y to fix a build failure? * Switch to v0.7 of the spec, which changes resv_mem parameters and adds an MMIO flag. These are trivial but not backward

Implement the virtio-iommu driver following version 0.6 of the specification [1]. Previous version, RFCv2, was sent in November [2]. This version addresses Eric's comments and changes the device number. (Since last week I also tested and fixed the probe/release functions, they now use devm properly.) I did not include ACPI support because the next IORT specifications isn't ready yet (even