[Xen-devel] Re: [PATCH][RFC] Support S3 for MSI interrupt in latest kernel dom0

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 17/12/2008 15:19, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

>> Why wait for map_guest_pirq() to be invoked to do this?
> 
> Otherwise we need a new hypercall here, since Xen cannot do this
> completely on its own (it has to wait for Dom0 to bring the device out of
> any suspend state it may itself be in). And it would allow restoring the
> old mechanism in your (2.6.18) Dom0, just without the unmap-pirq
> portion during suspend - instead of needing another full re-
> implementation cycle.

Well, maybe it's okay then. I don't think Yunhong's patch was a good
argument for it -- looking again it appears to have plenty of not really
related chunks contained in it.

 -- Keir



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