On 30/03/2015 15:27, Reza Jelveh wrote: > you are extending structure beyond of what specified by ACPI 1.0b spec, > that might break guests. > We probably can't change revision since Windows ACPI implementation > is mostly 1.0b based so we are stuck with it. > Patch needs to be tested with Windows guests starting with XP. > > Works fine with XP as long as you don't use q35, but i guess that's > unsupported by xp by default.
Isn't that just because XP doesn't have an AHCI driver? You should still be able to use XP with q35 and virtio, by using a driver disk. Or add a PATA controller: -device piix4-ide,id=pata \ -drive if=none,id=hd,file=... \ -device ide-hd,drive=hd,bus=pata.0 Paolo
