Re: [Xen-devel] [PATCH v6 11/12] x86/microcode: Synchronize late microcode loading

["Raj, Ashok" <ashok.raj@xxxxxxxxx>]

Hi Andrew 

Sorry it took a while, since I had to check with couple others.

+ Asit

On Thu, Mar 14, 2019 at 12:39:46PM +0000, Andrew Cooper wrote:
[snip]
> 
> On late load failure, we should dump enough information to work out
> exactly what went on, to determine how best to proceed, but the server
> is effectively lost to us.  On late load success, the proposed new
> "version" replaces the current "version".
> 
> And again - I reiterate the point that I think it is fine to have a
> simplifying assumption that we don't have mixed stepping systems to
> start with, presuming this is generally in line with Intel's support
> statement.  If in practice we find mixed stepping systems which are
> supported by an OEM/Intel, we can see about extending the logic.

Checking with Asit he says it is in fact permitted to have 1 step behind
even on a multi-socket system. One could be N and other N-1 should be 
supported.

Cheers,
Ashok

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