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[Xen-devel] Re: [RFC PATCH 09/35] Change __FIXADDR_TOP to leave room for

To: Anthony Liguori <aliguori@xxxxxxxxxx>
Subject: [Xen-devel] Re: [RFC PATCH 09/35] Change __FIXADDR_TOP to leave room for the hypervisor.
From: Chris Wright <chrisw@xxxxxxxxxxxx>
Date: Wed, 22 Mar 2006 09:32:28 -0800
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>
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* Anthony Liguori (aliguori@xxxxxxxxxx) wrote:
> I think this is more generally useful if it's actually a CONFIG option 
> (as it was in the VMI patches) instead of subarch specific.  Qemu has 
> had a "fast" patch for a while that pretty much just increases the size 
> of the memory hole and changes ___PAGE_OFFSET to be lower in memory.   
> There are a number of interesting things one can do once there's an 
> adequately sized hole too (assuming you're doing full-virtualization).

Good point, easy to change.  Although I think dynamic may be the better
approach.

thanks,
-chris

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