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Re: [Xen-devel] [pvops-dom0] Adding MCA logging support in pv_ops

On Thursday 06 August 2009 03:37:39 Ke, Liping wrote:
> Hi, Christoph
> Since we can't keep the same copy of header files for pv-ops and XEN
> already, When sync back the header to XEN, I will only sync back the
> modified comments and other required changes. As for the change for
> programming conventions (inline function vs micro), I will not put them
> back to XEN.  Is it OK for you?

Yes, that's fine.

> As for the union structure for recovery action, since no one is using it
> now,I plan firstly to add a comment on it, something like "If more than
> one kind of recovery action perbank permited, union structure need to
> be changed". How do you think about it?

That's fine with me. Tnx.


> Thanks a lot!
> Criping
> Christoph Egger wrote:
> > On Wednesday 05 August 2009 03:57:20 Ke, Liping wrote:
> >> Hi, Christoph
> >> Please see my below comments.
> >>
> >> And also, I found some interfaces are different in pv_ops kernel
> >> such as GUEST_HANDLE related. Seems we can't keep the same copy of
> >> common
> >> file between XEN and GUEST.
> >
> > That's not a problem as long as the ABI doesn't change.
> >
> >> We have to do slight changes to the XEN  file before copying it to
> >> guest kernel.
> >
> > Well, the comment updates I suppose.
> >
> >> And also, for the header file, I modified a little according to
> >> Andi's feedback such as gigantic macros will be unacceptable
> >> according to kernel code conventions, etc. So I modify
> >> x86_mcinfo_lookup into inline function.
> >
> > NetBSD also has some "local" guest header changes which aren't
> > accepted
> > by Keir due to Xen conventions.
> > Keep in mind that you have to merge the headers whenever you sync up
> > with Xen.
> >
> >> I will resend the new patch to all of you for further feedback.
> >> After the patch is accepted, I will sync the modified head file back
> >> to XEN for consistency.
> >
> > Please practise friendly actions for non-Linux guests when changing
> > the headers. Changing the macros for only one guest isn't a friendly
> > action for all guests.
> >
> > Please only sync back the comment updates.
> >
> > If NetBSD, Solaris and Linux were trying to have all local changes in
> > Xen headers, they would become a mess.
> >
> >> Thanks a lot for your help!
> >> Criping

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