Messages in this thread |  | | | Date | Tue, 10 Jul 2007 07:57:34 -0700 | | From | Jeremy Fitzhardinge <> | | Subject | Re: Hibernation Redesign |
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Jeremy Maitin-Shepard wrote: > I don't know a whole lot about xen, but it seems that one issue with > this approach is that it requires you run your system under a hypervisor > at all times, which may introduce some overhead. >
No, I don't think that's what Al is proposing. The kernel-internal interfaces we've put in place to make Xen work could be reused to do some of the things you're talking about. In particular, a kernel running under Xen has to be able to deal with non-contiguous physical pages, and reusing the same pagetable hooks would allow a kexeced kernel to run happily out of any random assortment of pages you manage to allocate for it.
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