| Subject | Re: [PATCH 00 of 36] x86/paravirt: groundwork for 64-bit Xen support | From | Andi Kleen <> | Date | Wed, 25 Jun 2008 14:40:20 +0200 |
| |
Jeremy Fitzhardinge <jeremy@goop.org> writes: > > This moves __PAGE_OFFSET up by 16 GDT slots, from 0xffff810000000000
GDT? PDP?
> to 0xffff880000000000. I have no general justification for this: th
This will significantly decrease the maximum amount of physical memory supported by Linux longer term.
> "x86_64: PSE no longer a hard requirement." > > Because booting under Xen doesn't set PSE, it's no longer a hard > requirement for the kernel. PSE will be used whereever possible.
Both sound like cases of "let's hack Linux to work around Xen problems"
-Andi
|