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Re: [Xen-devel] [PATCH 2 of 4] xen: introduce PHYSDEVOP_get_nr_pirqs
| To: | Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH 2 of 4] xen: introduce PHYSDEVOP_get_nr_pirqs |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 31 Aug 2010 13:55:01 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 31 Aug 2010 05:56:57 -0700 |
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| In-reply-to: | <alpine.DEB.2.00.1008311347570.18383@kaball-desktop> |
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| Thread-topic: | [Xen-devel] [PATCH 2 of 4] xen: introduce PHYSDEVOP_get_nr_pirqs |
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On 31/08/2010 13:49, "Stefano Stabellini" <Stefano.Stabellini@xxxxxxxxxxxxx> wrote: >> Couldn't it, like, pick the smallest available? :-) >> > > Well, it might still be useful to know the upper limit, besides linux > tends to choose the pirq == irq and the irqs for MSIs are high. > Xen does the same thing by the way. Well I'm just being fussy because it's yet another irq related interface and we seem to have so many already. Might-be-useful is different from must-have-now, and if you are allocating pirq==irq then that allocation strategy is not influenced by knowing nr_pirqs is it? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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