On 06/16/2016 05:40 AM, Jan Beulich wrote:
> The IO-APIC address has variable bits determined by the PCI-to-ISA
> bridge, and the IO-APIC version should be read from the IO-APIC. (Note
> that there's still implicit rather than explicit agreement on the
> IO-APIC base address between qemu and the hypervisor.)

It probably doesn't matter now for PVHv2 since we are not going to
initially emulate IOAPIC but when/if we do, how do we query for base
address and version? Should we just rely on the same implicit agreement?

-boris

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