Re: [Xen-devel] [RFC PATCH 2/2] xen: tmem: make tmem aware of NUMA affinity

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 18.03.14 at 13:25, Bob Liu <lliubbo@xxxxxxxxx> wrote:
> Persistant pages in tmem are allocated by alloc_domheap_pages(domain) which
> is consistent with that domain's node affinity. But that's not true for
> ephemeral pages, because domain=NULL have to be passed to
> alloc_domheap_pages(NULL).
> 
> This patch makes use of function alloc_domheap_pages_nodemask() introduced 
> by
> previous patch, so that we can still only allocate memory from nodes in
> d->node_affinity even when domain=NULL.
> 
> Signed-off-by: Bob Liu <bob.liu@xxxxxxxxxx>

While this may be considered reasonable, I don't think we want to
see feature enhancements to tmem prior to the security audit
having happened that has been outstanding for about 1.5 years
(XSA-15).

Jan


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel