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xen-devel
Re: [Xen-devel] copy on write memory
> I highly doubt that it will be directly applicable to xen - the entire backend
> mechanism is linked into the z/VM shared memory system between guests. I was
> more pointing it out as a probable jumping off point (most of the work is
> done,
> it just needs to use the xen memory sharing instead) and as a workable
> concept for a less-cpu-intensive copy-on-write mechanism.
Yeah, I spotted uses of hypervisor services and things called
"DCSS"s. I guessed that xip2 must be rather z/VM specific. :-)
Is there any documentation on the semantics of DCSS and the hypervisor
services that are used? It would be interesting to see if Xen ought to
have some similar concept.
-- Keir
> I'll take a look for a newer patch and see if I can scrape up some time to
> apply the backend to xen, but I don't know when I'll get a chance -- don't let
> me hold anyone else up who was considering working on it.
>
> -m
>
>
>
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