On Thu, Feb 3, 2011 at 5:18 PM, Jan Kiszka <jan.kis...@siemens.com> wrote: > On 2011-02-03 18:03, Blue Swirl wrote: >> On Thu, Feb 3, 2011 at 2:55 PM, Jan Kiszka <jan.kis...@siemens.com> wrote: >>> The registers of real IOAPICs can be relocated during runtime (via >>> chipset registers). We don't support this yet, but qemu-kvm carries the >>> current base address in its version 2 vmstate. >>> >>> To align both implementations for migratability, add the proper >>> infrastructure to accept initial as well as updated base addresses and >>> include the current address in the vmstate. This is done in a way that >>> will also allow multiple IOAPICs in the future. >> >> Nack, the addresses should be device properties. > > Hmm.... we could make default_base_address a property. Will change that. > But current_base_address is just the same as apicbase and can't be a > property.
Oh, right. What will current_base_address used for? Why can't board just unmap IOAPIC from current address and remap it at the new address? Then the device would not need to know its base address.
