Re: [Xen-ia64-devel] [PATCH] Another important Xen/ia64 domU/vbd fix

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Mercredi 04 Janvier 2006 16:55, Magenheimer, Dan (HP Labs Fort Collins) a 
écrit :
> > >If Xen requires virtual_mem_map, then dom0 will require it too.
> > >Since dom0 can't work yet with virtual_mem_map, enabling it
> >
> > in Xen is moot,
> >
> > >isn't it ?
> > >
> > >Tristan.
>
> Yes, I agree.  For virtual_mem_map to work, I think domain0
> needs to be given a granule of physical memory for each "island"
> in the EFI memmap.
I think this is a little bit too kludgy...

> > Seems like that. If we add phys2mach (p!=m) concept into
> > dom0, that's not the issue then. ;-)
>
> True.  But if domain0 owns all of physical memory, its not
> an issue either.  The problem is that the current design
> and implementation of Xen/ia64 management of physical memory
> is half-way between two good solutions.  We will need to
> choose one solution soon.  This should be a good discussion
> at the Xen summit.
I wholy agree with you.

Tristan.


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