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Re: [Qemu-devel] Enablig DLPAR capacity on QEMU pSeries
From: |
Benjamin Herrenschmidt |
Subject: |
Re: [Qemu-devel] Enablig DLPAR capacity on QEMU pSeries |
Date: |
Sat, 06 Oct 2012 06:56:26 +1000 |
On Fri, 2012-10-05 at 08:26 -0700, Erlon Cruz wrote:
> >
> > Why not add a proper RTAS and do this work there?
>
> The RTAS call is how the guest will communicate with the host. It
> doesn't have a way to get interrupted and notified about any changes.
> So
> to start the changing of something, the guest need some kind of
> trigger
I believe the question was more about where we put the resource
allocation.
The interrupt problem remains in any case yes, but inventing a new RTAT
event interrupt (or hijacking EPOW) isn't a big deal.
Cheers,
Ben.