search for: iort_set_fwnod

..., enum iort_node_category category) * * @node: IORT table node associated with the IOMMU * @fwnode: fwnode associated with the IORT node + * @pci_devid: pci device ID associated with the IORT node, may be NULL * * Returns: 0 on success * <0 on failure */ static inline int iort_set_fwnode(struct acpi_iort_node *iort_node, - struct fwnode_handle *fwnode) + struct fwnode_handle *fwnode, + struct iort_pci_devid *pci_devid) { struct iort_fwnode *np; @@ -76,6 +86,7 @@ static inline int iort_set_fwnode(struct acpi_iort_node *iort_node, INIT_LIST_HEAD(&np->lis...

...type, enum iort_node_category category) +{ + switch (category) { + case IORT_IOMMU_TYPE: + return type == ACPI_IORT_NODE_SMMU || + type == ACPI_IORT_NODE_SMMU_V3; + case IORT_MSI_TYPE: + return type == ACPI_IORT_NODE_ITS_GROUP; + default: + WARN_ON(1); + return false; + } +} + /** * iort_set_fwnode() - Create iort_fwnode and use it to register * iommu data in the iort_fwnode_list @@ -397,7 +411,7 @@ static int iort_get_id_mapping_index(struct acpi_iort_node *node) static struct acpi_iort_node *iort_node_map_id(struct acpi_iort_node *node, u32 id_in, u32 *id_out, -...

I'm seeking feedback on multi-platform support for virtio-iommu. At the moment only devicetree (DT) is supported and we don't have a pleasant solution for other platforms. Once we figure out the topology description, x86 support is trivial. Since the IOMMU manages memory accesses from other devices, the guest kernel needs to initialize the IOMMU before endpoints start issuing DMA.

I'm seeking feedback on multi-platform support for virtio-iommu. At the moment only devicetree (DT) is supported and we don't have a pleasant solution for other platforms. Once we figure out the topology description, x86 support is trivial. Since the IOMMU manages memory accesses from other devices, the guest kernel needs to initialize the IOMMU before endpoints start issuing DMA.

...(iort_node->type == ACPI_IORT_NODE_SMMU_V3)) { + (iort_node->type == ACPI_IORT_NODE_SMMU_V3) || + (iort_node->type == ACPI_IORT_NODE_PARAVIRT)) { fwnode = acpi_alloc_fwnode_static(); if (!fwnode) @@ -1258,7 +1337,9 @@ static void __init iort_init_platform_devices(void) iort_set_fwnode(iort_node, fwnode); - ret = iort_add_smmu_platform_device(iort_node); + ret = iort_node->type == ACPI_IORT_NODE_PARAVIRT ? + iort_add_paravirt_platform_device(iort_node) : + iort_add_smmu_platform_device(iort_node); if (ret) { iort_delete_fwnode(iort_node); acpi_free_f...

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