Hi, > attached. Though those should be far less than 8000+, and those should also be > pio rather than mmio. Well, seabios 1.14 (qemu 5.1) added mmio support (to speed up boot a little bit, mmio is one and pio is two vmexits). Depends on q35 obviously, and a few pio accesses remain b/c seabios has to first setup mmconfig. take care, Gerd