Hi, > If we could make a small guset visible change, it would be simpler to > always make the PCI hole 1GB in size; it is currently 256MB for i440FX > and 1.25GB for q35.
Easy for i440fx. Tricky for q35 as the firmware knows qemu will not map ram above 0xb000000 and places the mmconfig bar @ 0xb0000000. Making the window smaller (1.25GB -> 1GB) will create a conflict there. Making it larger (2G) will work. It's done this way to keep 0xc0000000+ free for pci bars, and we can map up to 512MB-sized bars there. > We can take a look as soon as the SeaBIOS patches > are in to use QEMU-built ACPI tables. This is in master already. cheers, Gerd
