On Mon, May 22, 2023 at 10:37:09AM +0200, Juergen Gross wrote: > In normal cases PCI passthrough in PV guests requires to start the guest > with e820_host=1. So it should be rather easy to limit allocating the > 64MB in PV guests to the cases where the memory map has non-RAM regions > especially in the first 1MB of the memory. > > This will cover even hotplug cases. The only case not covered would be a > guest started with e820_host=1 even if no PCI passthrough was planned. > But this should be rather rare (at least I hope so). So is this an ACK for the patch and can we go ahead with it? (I'd still like to merge swiotlb-xen into swiotlb eventually, but it's probably not going to happen this merge window)
