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[Xen-ia64-devel] RE: PATCH: allow domain to set shared_info address

To: "Tristan Gingold" <Tristan.Gingold@xxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>, "Williamson, Alex (Linux Kernel Dev)" <alex.williamson@xxxxxx>
Subject: [Xen-ia64-devel] RE: PATCH: allow domain to set shared_info address
From: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>
Date: Thu, 22 Jun 2006 10:55:10 -0700
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Thread-topic: PATCH: allow domain to set shared_info address
Can shared_info be changed randomly at any time by
a domain?  Will this cause any problems?  If this
hypercall can/should be called only very early during
boot, it would be good to add some checks to disallow
it from being called at a later time.

> -----Original Message-----
> From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx] 
> Sent: Thursday, June 22, 2006 3:23 AM
> To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx; Magenheimer, Dan (HP 
> Labs Fort Collins); Williamson, Alex (Linux Kernel Dev)
> Subject: PATCH: allow domain to set shared_info address
> 
> Hi,
> 
> this patch add a new hypercall to set shared_info address.
> Currently it is disabled in order not to break backward 
> compatibility with 
> previous Xen (for FC6 people).
> 
> Tested by booting dom0+domU (2w) using old address
> Tested by booting dom0+domU (2w) using -1MB address.
> 
> Tristan.
> 

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