| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
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
|
|
|
| |
|
Home