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RE: [Xen-devel] 32/64-bit hypercall interface

To: "Jimi Xenidis" <jimix@xxxxxxxxxxxxxx>, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
Subject: RE: [Xen-devel] 32/64-bit hypercall interface
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Thu, 29 Sep 2005 14:56:28 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Hollis Blanchard <hollisb@xxxxxxxxxx>
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Thread-index: AcXE8zc1mN0ZShFhQ763IaEktiPvPAACRaOA
Thread-topic: [Xen-devel] 32/64-bit hypercall interface
> Anyway, since this is a Xen/Kernel header, perhpas we can 
> create a type that represent the Xen/Kernel machine-register size?

Since we're only talking about dom0 ops, it wouldn't be unreasonable to
turn all the long's into u64's. This would be pretty straightforward,
arguably easier than bothering with a u_reg type or similar.

Since the dom0_op interface is not guaranteed stable in the 3.0 series
[we assume you have matched tools and hypervisor] we don't have to get
this in before 3.0.0. However, it's a pretty simple change and if
someone who really cared were to knock up a tested patch immediately
we'd potentially consider it.

Ian

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