From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH] Make the hypercall PHYSDEVOP_alloc_irq_vector
	hypercall dummy.
Date: Thu, 03 Sep 2009 13:59:57 -0700
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To: "Zhang, Xiantao" <xiantao.zhang@intel.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Keir Fraser <keir.fraser@eu.citrix.com>
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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