Re: [Xen-devel] Re: [RFC] RAS(Part II)--MCA enalbing in XEN

[Frank van der Linden <Frank.Vanderlinden@xxxxxxx>]

Jiang, Yunhong wrote:
> Christoph Egger wrote:
> > I think, we should mark the 'struct mcinfo_global' as a kind 
> > of header for
> > each error. All following information describe the error 
> > (including the 
> > follow-up errors) and all recover actions. This gives us the 
> > flexibility
> > to get as many information as possible and allows to do
> > as many recover actions as necessary instead of just one.
> I think your original proposal can also meet such purpose, i.e. include the 
> mc_recover_info and we still need pass all mc_bacnk infor to dom0 for 
> telemetry. If you prefer this one, can you please define the interface? 
> Gavin/Frank, do you have any idea for this changes?
Sorry about the slow reply.

Our changes to the MCE code (to combine the AMD and Intel code as much 
as possible, and use a transactional approach to the telemetry) already 
pretty much uses mc_global as a header. With our code, dom0 retrieves 
one mcinfo structure, with one global structure (which always comes 
first, but that's not required).
In other words, using mc_global as kind of a header to the mcinfo data 
is fine, since we're already doing that.
And, since we're talking about transactions with one mcinfo structure at 
a time (with one mc_global structure), the recover_info structures can 
be separate from the bank structures.
- Frank

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