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xen-devel
Re: [Xen-ia64-devel] Re: [Xen-devel] [PATCH 0/5] dump-core take 2:
On Thu, Jan 18, 2007 at 04:54:05PM +0800, Tian, Kevin wrote:
> Yeah, memory map may be sparse on ia64, but, only at physical level.
> You can always present a compact pseudo physical layout to a
> domain, despite of sparse or not in real physical.:-)
That's right. Xen/ia64 does so now for paravirtualized domain
except dom0.
There is an unsolved issue. If much memory (e.g. >4GB) is given
to a driver domain, the domain can't access I/O.
At least the I/O area must be avoided somehow,
thus paravirtualized domain's memory map may become sparse
(in the future when the issue is solved).
> BTW, is it possible
> to save memmap into xenstore, so that multiple user components can
> communicate such info directly without xen's intervention?
Do you have any usage in mind?
--
yamahata
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