On 10/07/2010 07:21 PM, Gleb Natapov wrote:
On Thu, Oct 07, 2010 at 02:29:07PM +0200, Avi Kivity wrote: > On 10/04/2010 05:56 PM, Gleb Natapov wrote: > >When page is swapped in it is mapped into guest memory only after guest > >tries to access it again and generate another fault. To save this fault > >we can map it immediately since we know that guest is going to access > >the page. Do it only when tdp is enabled for now. Shadow paging case is > >more complicated. CR[034] and EFER registers should be switched before > >doing mapping and then switched back. > > With non-pv apf, I don't think we can do shadow paging. The guest Yes, with non-pv this trick will not work without tdp. I haven't even considered it for that case.
What about nnpt? The same issues exist. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>