search for: iort_enable_acs

...t const struct iort_dev_config *iort_get_dev_cfg( switch (node->type) { case ACPI_VIOT_IORT_NODE_VIRTIO_MMIO_IOMMU: return &iort_viommu_mmio_cfg; + case ACPI_VIOT_IORT_NODE_VIRTIO_PCI_IOMMU: + return &iort_viommu_pci_cfg; } } @@ -1641,13 +1683,55 @@ static void __init iort_enable_acs(struct acpi_iort_node *iort_node) static inline void iort_enable_acs(struct acpi_iort_node *iort_node) { } #endif -static void __init iort_init_platform_devices(void) +static int __init iort_init_node(struct acpi_iort_node *iort_node) +{ + int ret; + const struct iort_dev_config *ops; + struct...

...de *node) +{ + struct acpi_iort_pviommu *pviommu; + + pviommu = (struct acpi_iort_pviommu *)node->node_data; + + if (WARN_ON(pviommu->model != ACPI_IORT_NODE_PV_VIRTIO_IOMMU)) + return -ENODEV; + + return iort_add_iommu_platform_device(node, "virtio-mmio"); +} + static bool __init iort_enable_acs(struct acpi_iort_node *iort_node) { if (iort_node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) { @@ -1250,7 +1328,8 @@ static void __init iort_init_platform_devices(void) acs_enabled = iort_enable_acs(iort_node); if ((iort_node->type == ACPI_IORT_NODE_SMMU) || - (iort_node->type...

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.

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