Messages in this thread | | | Date | Thu, 24 Jan 2008 16:02:24 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86: Construct 32 bit boot time page tables in native format. |
| |
Jeremy Fitzhardinge wrote: > H. Peter Anvin wrote: >> Yes. We'd use it during initialization and at other times when we >> need trampolining, but give the swapper something which only has the >> kernel map. > > Hm, though Xen makes it all a bit more complex, as usual. In the PAE > case it wouldn't allow the pmd to be shared, so you'd have to allocate a > new pmd and copy into it. There's probably a way to deal with it within > the existing paravirt hooks... >
Yeah, I'm aware of this particular piece of Xen braindamage, and although I had some very unkind words to say about it, it mirrors what we have to do for the !PAE case anyway, so it can be sort of glossed over.
-hpa
| |