[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: super page with live migration
At 10:03 +0100 on 26 Sep (1222423431), Keir Fraser wrote: > Yes: If pseudo-phys page is not yet populated in target domain, AND it is > first page of a 2MB extent, AND no other pages in that extent are yet > populated, AND the next pages in the save-image stream populate that extent > in order, THEN allocate a superpage. This is made trickier by the fact that > the next 511 pages (to make the 2MB extent) might be split across a batch > boundary. So we'll have to optimistically allocate a superpage in that case, > and then shatter it if it turns out that the contiguous stream of > pseudo-phys addresses is broken in the next batch. Or flag the start-of-a-superpage frames when saving them? Tim. -- Tim Deegan <Tim.Deegan@xxxxxxxxxx> Principal Software Engineer, Citrix Systems (R&D) Ltd. [Company #02300071, SL9 0DZ, UK.] _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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