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Re: [Xen-ia64-devel] relocated Xen may conflict with identity mapping

To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Subject: Re: [Xen-ia64-devel] relocated Xen may conflict with identity mapping
From: Tristan Gingold <tgingold@xxxxxxx>
Date: Wed, 26 Sep 2007 06:37:02 +0200
Cc: Alex Williamson <alex.williamson@xxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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On Wed, Sep 26, 2007 at 12:22:00PM +0800, Xu, Anthony wrote:
> Hi Alex,
> 
> Since the address space of relocated Xen is in the same region with
> identity mapping address space.
> 
> There may be conflict.
> 
> Can we put Xen as other region?

Yes, the new mapping could be:
0xf000000000000000: WB identify mapped
0xf200000000000000: UC identify mapped
0xf400000000000000: xen + default sharedinfo + percpu
0xf600000000000000: virt frame table

IIRC I tested such a map while I was testing xen relocation.

Tristan.

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