Re: [Xen-devel] [PATCH] Make the hypercall PHYSDEVOP_alloc_irq_vector hypercall dummy.

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 09/03/09 06:14, Zhang, Xiantao wrote:
> IMO, dom0 should only cares about pirq(==GSI) and doesn't need to know the 
> ifno about vector and specific apic&pin at all. Since Xen also knows GSI 
> info, so dom0 and Xen can build irq mapping(xen's irq and dom0's pirq) 
> through it.

Yes, but if dom0 rebinds the pirq<->gsi association, will Xen maintain
its internal structures correctly?

>   Maybe we can get rid of ioapic in dom0 eventually. 
>   

Yes, I think so (see other mail).

    J

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