[Xen-bugs] [Bug 785] Dom0 domains cannot be larger than 2GiB

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=785





------- Comment #1 from jimix@xxxxxxxxxxxxxx  2006-09-30 07:17 -------
The problem turns out to be that Dom0 tries to map the "IO-area" as regular
memory, the H_ENTER fails and its to early for Linux to recover.

On 970s the IO-Area starts at 2G and ends at 4G so a domain that has access to
the IO Area cannot have memory in that Domain Physical address.

Since the Devtree has several carefully placed references into the IO-area it
is not feasible to place the IO-Area in a different physical space of the
domain because it would require translating the devtree as well.


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