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Re: [Xen-devel] RE: [PATCH] x86: add CMCI software injection interface

To: "Ke, Liping" <liping.ke@xxxxxxxxx>
Subject: Re: [Xen-devel] RE: [PATCH] x86: add CMCI software injection interface
From: Frank Van Der Linden <frank.van.der.linden@xxxxxxxxxx>
Date: Tue, 04 May 2010 21:52:11 -0600
Cc: Egger <Christoph.Egger@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "gavin.maltby@xxxxxxxxxx" <gavin.maltby@xxxxxxxxxx>, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>, Christoph@xxxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
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On 5/4/10 7:56 PM, Ke, Liping wrote:
Hi, Keir

Yes, we do some discussion about the interface compatibility problem before 
But we found the mceinj_cpunr below is defined as unsigned int (not uint32), so 
we think it may have some problem in 32/64 bit machine originally.
So we gave up the backward compatibility effort and made it as uint32_5. But if 
sun/oracle use this interface before, we did have some problem

So Christopher and Gavin, any suggestions for this?


I have no problems with this change. dom0/Xen should match in version anyway. There have been ABI breakages in the dom0/Xen interface before. You can bump the xen MCE hypercall version if you wish..

- Frank

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