RE: [Xen-devel] Clustered xAPIC and Unisys ES7000 patch

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> I agree that going with the 2.6 based code is better in the 
> long run. So once Natasha's patch gets included in the 
> unstable tree, I can pick it up and apply the ES7000 patches. 
> Does that sound like a good idea? 

Sounds like a good plan.
Ian

> -----Original Message-----
> From: Ian Pratt [mailto:m+Ian.Pratt@xxxxxxxxxxxx]
> Sent: Friday, April 15, 2005 4:09 PM
> To: natasha@xxxxxxxxxx; Puthiyaparambil, Aravindh; 
> xen-devel@xxxxxxxxxxxxxxxxxxx
> Cc: ian.pratt@xxxxxxxxxxxx; ian.pratt@xxxxxxxxxxxx
> Subject: RE: [Xen-devel] Clustered xAPIC and Unisys ES7000 patch
> 
> 
> > I sent a second patch to the list last wednesday 
> > night/thursday morning April 6.  I can resend if you need me to.
> 
> Ah, got it, thanks. 
> 
> The patch looks good to me. I propose to apply it, but Keir 
> should have
> the final say.
> 
> Aravindh: make sense to you? Going with 2.6 based code seems better in
> the longer run.
> 
> Ian
>  
> > Some of this work conflicts with my patch (but not a 
> > significant amount).  These patches are based on linux 2.4.  
> > Unfortunately, the code organization changed drastically for 
> > linux 2.6 and it will be a bit of work to get the Xen code up 
> > to date.  However, I do believe that modeling Xen after 2.6 
> > will give a much cleaner implentation -- the code for the 
> > various machines which use clustered apics can go into 
> > separate files instead of having so many ifdef's in the files.
> > 
> > I would like to propose updating all the Xen apic code.  I 
> > think the first step is just to model new code, such as the 
> > ES7000 support code, after 2.6 as far as code organization 
> > goes.  Then the extra code from 2.4 can be stripped out.  I 
> > was going to send some patches to start stripping out code 
> > but wasn't sure if the Unisys team was using it or not.  
> > Clearly they are so that will have to wait.
> > I also wrote a set of patches for Summit clustered APIC 
> > support (which are currently untested) so I'm aware of some 
> > of the changes which need to be made to the code for 
> > re-organization.  I'd like to submit some patches for that 
> > but they will conflict with these ES7000 patches.  So I guess 
> > we just need to make a decision what the best way forward 
> > is/how much re-org we want to do right now.
> > 
> > Natasha Jarymowycz
> > 
> > 
> > 
> > On Fri, 15 Apr 2005 20:01:55 +0100, Ian Pratt 
> > <m+Ian.Pratt@xxxxxxxxxxxx>
> > wrote:
> > 
> > > Natasha,
> > >
> > > Are the generic apic bits of this already handled by your 
> > patch? Have 
> > > you a 2nd version of it ready?
> > >
> > > Thanks,
> > > Ian
> > 
> > 
> 

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