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Re: [Xen-devel] Re: [Xen-changelog] Indirect hypercalls through ahyperca

To: Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Xen-changelog] Indirect hypercalls through ahypercall transfer page.
From: "Mike D. Day" <ncmike@xxxxxxxxxx>
Date: Wed, 08 Feb 2006 12:04:11 -0500
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Hollis Blanchard <hollisb@xxxxxxxxxx>
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Ian Pratt wrote:


Mike, there was some discussion about this and the other new 'feature
flags' at the OS Ports session at the summit (and in particular in the
'linux merge' breakout group).

Thanks, I guess I missed that session.

The hypercall transfer page is just one of several new feature flags
that should enable us to have a single xen-ified kernel that is capable
of running on bare metal, on pae and non-pae hypervisors, 64b

A 32-bit kernel running on a 64-bit xen, for example? So in this case xen fills the page with 32-bit hcalls?

Mike





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