search for: iort_iommu_update_fwnod

...files changed, 42 insertions(+) diff --git a/drivers/acpi/iort.c b/drivers/acpi/iort.c index f08f72d8af78..8263ab275b2b 100644 --- a/drivers/acpi/iort.c +++ b/drivers/acpi/iort.c @@ -1038,11 +1038,49 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) return ops; } + +/** + * iort_iommu_update_fwnode - update fwnode of a PCI IOMMU + * @dev: the IOMMU device + * @fwnode: the fwnode, or NULL to remove an existing fwnode + * + * A PCI device isn't instantiated by the IORT driver. The IOMMU driver sets or + * removes its fwnode using this function. + */ +void iort_iommu_update_fwnode(struct de...

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.