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...onceptually wrong but actually broken, so the concept here worries me a bit. In a world where of_iommu_configure() and friends are being called much earlier around iommu_probe_device() time, how badly will this fall apart? Robin. [1] https://lore.kernel.org/linux-iommu/9625faf4-48ef-2dd3-d82f-931d9cf26976 at huawei.com/ > Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> > --- > drivers/pci/pci-driver.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c > index 0454ca0e4e3f..69303a814f21 1...

Add topology description to the virtio-iommu driver and enable x86 platforms. Since the RFC [1] I've mostly given up on ACPI tables, since the internal discussions seem to have reached a dead end. The built-in topology description presented here isn't ideal, but it is simple to implement and doesn't impose a dependency on ACPI or device-tree, which can be beneficial to lightweight