Hi Peter, On 11/10/2017 16:56, Peter Maydell wrote: > On 19 September 2017 at 08:46, Eric Auger <eric.au...@redhat.com> wrote: >> This series implements the virtio-iommu device. >> >> This v4 is an upgrade to v0.4 spec [1] and applies on QEMU v2.10.0. >> - probe request support although no reserved region is returned at >> the moment >> - unmap semantics less strict, as specified in v0.4 >> - device registration, attach/detach revisited >> - split into smaller patches to ease review >> - propose a way to inform the IOMMU mr about the page_size_mask >> of underlying HW IOMMU, if any >> - remove warning associated with the translation of the MSI doorbell >> >> The device gets instantiated using the "-device virtio-iommu-device" >> option. It currently works with ARM virt machine only, as the machine >> must handle the dt binding between the virtio-mmio "iommu" node and >> the PCI host bridge node. > > Could this work on x86, or is it inherently arm-only?
Yes this is the goal. At the moment the ACPI probing is not yet properly specified but a Q35 prototype was developed in the Red Hat Virt team. This will be presented at the KVM forum. Thanks Eric > > thanks > -- PMM >
