[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 0/15] Nested Virtualization: Overview
On 04/06/2010 10:44, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote: > @Tim: On last review you asked about the use of MAX_NESTEDP2M. > Actually, this is a hack. What I really need in Xen is a generic pool > implementation like this > http://netbsd.gw.com/cgi-bin/man-cgi?pool+9+NetBSD-current > and this > http://netbsd.gw.com/cgi-bin/man-cgi?pool_cache+9+NetBSD-current > In NetBSD, pool_cache(9) is implemented on top of pool(9). > > IMO, xmalloc/xfree, machine check and cpupool code should also > use pool_cache(9) in Xen instead of having their own versions. > Can we take the pool/pool_cache code from NetBSD ? I'd hope we can really manage without such a mechanism. At least, we'd need a darn good reason for it, and to have rejected simpler alternative solutions. I know some OSes have such a concept so that paging code doesn't deadlock. I can't immediately guess why we'd need it in Xen. And does pool_cache have much relationship to cpupool, except both have "pool" in their name? :-) -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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