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Subject: Re: [hwloc-devel] Creating a topology generation method for Xen
From: Samuel Thibault (samuel.thibault_at_[hidden])
Date: 2013-12-26 16:43:35


Andrew Cooper, le Thu 26 Dec 2013 22:17:38 +0100, a écrit :
> I believe can make a topology-xen.c without too much trouble. It likely
> wants to checked before an os-specific hook (Xen dom0's come in at least
> Linux, FreeBSD, NetBSD flavours which have mainstream support)
> Are there any hints/suggestion/information about how to go about
> integrating this?

Yes, you can probably play with plugin priorities for that. See for
instance what happens with the pci plugins.

> What is the policy with regards to linking against
> new libraries by default (or perhaps by an --enable-xen configure
> option)?

By default we usually link against anything which is there, so linking
against libxenctrl is fine.

IIRC hypercalls through libxenctrl are reserved to root? We'd like to
let normal users be able to get the topology...