Fw: [XenPPC] noHV patch 06/09/2006

[Mark F Mergen <mergen@xxxxxxxxxx>]

---------------------- Forwarded by Mark F Mergen/Watson/IBM on 06/09/2006
05:46 PM ---------------------------



To:    hollisb@xxxxxxxxxxxxxxxxxxxxxxx
cc:
From:  Mark F Mergen/Watson/IBM@IBMUS
Subject:    Re: [XenPPC] noHV patch 06/09/2006  (Document link: Mark F
       Mergen)

I need code to destroy a VM area and flush a PTE in both Xen and LInux.  As
long as I'm debugging, some surprise could require more code.  Yes, I'm
sure there's a better way to code all that opcode breakout for priv
emulation.  I'll work on those things when I get it running.

hollisb@xxxxxxxxxxxxxxxxxxxxxxx on 06/09/2006 05:12:50 PM

To:    Mark F Mergen/Watson/IBM@IBMUS
cc:    xen-ppc-devel@xxxxxxxxxxxxxxxxxxx
Subject:    Re: [XenPPC] noHV patch 06/09/2006


On Fri, 2006-06-09 at 16:39 -0400, Mark F Mergen wrote:
> This is not for submission but just to make it available to others.
Files
> nohv.c and nohv.h go in arch/ppc/ppc64 and include/asm-ppc.

Wow, are those the only changes needed on the Xen side?

Looking at do_privileged(), would it be possible to convert all those
conditionals into a series of tables, or at least switch statements to
let the compiler do it for you?

--
Hollis Blanchard
IBM Linux Technology Center




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