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

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Mercredi 04 Janvier 2006 13:26, Tian, Kevin a écrit :
> Hi, Dan,
>       Attached is another important Xen/ia64 fix to enable domU/vbd
> working on system with >1G hole in dom0's memory layout. Once memmap of
> dom0 is virtualized, there's no way for dom0 to access machine frames
> (like from domU) which is outside of EFI memory layout known by dom0,
> because of no mapping. So we have to disable CONFIG_VIRTUAL_MEM_MAP
> explicitly, to ensure dom0 constructing a physical memmap array.
[...]
Hmm, this side effect is very interesting.

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.


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