search for: acpi_viot_iort_virtio_mmio_iommu

Displaying 3 results from an estimated 3 matches for "acpi_viot_iort_virtio_mmio_iommu".

2019 Nov 22
0
[RFC 02/13] ACPI: Add VIOT definitions
...uct acpi_table_viot { + struct acpi_table_header header; + u8 reserved[12]; + struct acpi_table_header base_table; +}; + +#define ACPI_VIOT_IORT_NODE_VIRTIO_PCI_IOMMU 0x80 +#define ACPI_VIOT_IORT_NODE_VIRTIO_MMIO_IOMMU 0x81 + +struct acpi_viot_iort_virtio_pci_iommu { + u32 devid; +}; + +struct acpi_viot_iort_virtio_mmio_iommu { + u64 base_address; + u64 span; + u64 flags; + u64 interrupt; +}; + +/* FIXME: rename this monstrosity. */ +#define ACPI_VIOT_IORT_VIRTIO_MMIO_IOMMU_CACHE_COHERENT (1<<0) + /******************************************************************************* * * LPIT - Low Power Idle Table...
2019 Nov 22
16
[RFC 00/13] virtio-iommu on non-devicetree platforms
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.
2019 Nov 22
16
[RFC 00/13] virtio-iommu on non-devicetree platforms
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.