On Sat, Apr 28, 2012 at 00:08, Gleb Natapov <g...@redhat.com> wrote: > On Fri, Apr 27, 2012 at 02:55:48PM -0700, Jordan Justen wrote: >> But, if qemu could be changed, >> could it be made to match the PIIX4 datasheet? >> > We try not to change QEMU in non backwards compatible way. We can > implement PMBA and start using address there if FW writes into it, > but, as I noted before, OVMF will have to be changed anyways since 0x400 > address is already occupied and pci/cpu/memory hotplug/unplug > functionality uses additional IO space not documented by PIIX4 spec.
The "pci/cpu/memory hotplug/unplug functionality" is also using hard coded addresses in the 0x400 range? And, 0xb000 would be the recommended PM base address? > It would be better for OVMF to treat QEMU like separate platform, that > behave almost, but not exactly like, real HW. Yes, it does seem like that will be required here. -Jordan