This is an opportunity to discuss the current patch series on xen-devel to enable SR-IOV on PVH dom0, and possibly additional vPCI and PCI passthrough topics (e.g. domU support, hotplug, Arm vMSI, etc).
https://lore.kernel.org/xen-devel/cover.1772806036.git.mykyta_poturai@epam.com/T/#t
https://lore.kernel.org/xen-devel/20260324030513.700217-1-stewart.hildebrand@amd.com/T/#t
Discussion starters:
We have a need to queue p2m mapping operations - should we dynamically allocate slots, or use a fixed number of slots?
MSI-X trapping is not strictly necessary on Arm - is it OK to move this code to a separate file?