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Re: [Xen-devel] Re: [Patch] update cpumask handling for cpu pools in lib

To: Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Patch] update cpumask handling for cpu pools in libxc and python
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Fri, 17 Sep 2010 16:51:40 +0100
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Juergen Gross writes ("Re: [Xen-devel] Re: [Patch] update cpumask handling for 
cpu pools in libxc and python"):
> The hypervisor returns a cpumask based on bytes, the tools use uint64-based
> cpumasks. In practice this is equivalent as long as multiple of 8 bytes are
> written by the hypervisor and the system is running little endian.

Surely we don't intend to tie our code permanently to little-endian
cpus ?  I don't know whether we have supported any big-endian
architectures in the past but I don't think we should rule it out
where it's not necessary to do so.


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