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[Xen-devel] Re: [PATCH 0/3] x86/microcode: support for microcode update in Xen dom0



H. Peter Anvin writes ("[Xen-devel] Re: [PATCH 0/3] x86/microcode: support for 
microcode update in Xen dom0"):
> On 10/12/2011 12:18 PM, Jeremy Fitzhardinge wrote:
> > But for right now, this patch seems like the pragmatic solution.
> 
> No.

This is a quite astonishing response.  At the moment, microcode
updates in Xen systems are _completely broken_ because they do not
happen at all.

The existing machinery in Linux is the way it is and you say it's no
good - how about we just remove it all too ?  Because that's what
you're suggesting is the proper course for Xen!

At the moment, Jeremy's patch is a significant improvement.  It is
quite unreasonable to block it because some pie-in-the-sky scheme for
doing it at boot time does not exist yet.

Either:
 (a) Jeremy's patch should go in
 (b) all after-boot microcode update code should be removed from Linux

Ian.
(very cross)

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