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Re: [libvirt] [PATCH] Add huge page support to libvirt..



* Daniel P. Berrange (berrange redhat com) wrote:
> On Thu, Jul 23, 2009 at 11:35:17AM -0700, Chris Wright wrote:
> > * Mark McLoughlin (markmc redhat com) wrote:
> > > I'd suggest /dev/hugepages as the default - /hugetlbfs has an seriously
> > > unstandard whiff about it
> > 
> > What about /var/lib/libvirt/qemu/hugetlb and having the whole thing under
> > libvirt's control?  It can allow for better security I think.
> 
> Does hugetlbfs support extended attributes ?  If so, the sVirt will
> automatically ensure isolation of each VM's backing file. If it
> doesn't supported extended attrs, then using hugetlbs at all would
> seem to blow a huge hole in our security model ...  

You should be able to specify a per mount point security context.
There is no xattr support for hugetlbfs.

thanks,
-chris


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