| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
RE: [Xen-devel] PAE support revisited
> So if xen is using PAE, all domains must also use PAE - it's a machine
> wide thing and not something that could be jumped between on
> the fly. Is
> that right? What I was hoping for was a mode where Xen might run using
> PAE but could set up memory access for the domains so that
> they wouldn't
> need to use PAE, provided their memory requirements didn't exceed 4G.
> But from what you are saying this just cannot be. Oh well.
Not without using shadow page tables. It would be great if Linux had a
mode where it boot-time switched between 2 and 3 level (see my other
post on this topic).
Xen's shadow page table algorithm is *very* good, but there are
inevitable performance and memory usage costs.
Ian
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_ide95&alloc_id396&op=click
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel
|
|
|
| |
|
Home