[PATCH 2/2 V7] powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx

[Jia Hongtao-B38951]

> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Friday, April 26, 2013 12:58 AM
> To: Segher Boessenkool
> Cc: Jia Hongtao-B38951; linuxppc-dev at lists.ozlabs.org;
> galak at kernel.crashing.org; Wood Scott-B07421
> Subject: Re: [PATCH 2/2 V7] powerpc/85xx: Add machine check handler to
> fix PCIe erratum on mpc85xx
> 
> On 04/25/2013 10:31:51 AM, Segher Boessenkool wrote:
> >> * Remove A variant of load instruction emulation
> >
> > Why is this?  You handle all other simple load insns, there is nothing
> > special about LHA.  (I reviewed the V4 email thread, no reason for the
> > chance is given there).
> 
> The LHA implementation in V5 was incorrect (didn't sign-extend).
> 
> -Scott

In former email you doubt whether we need A variant or not.
Any particular reason for that?
If not should I emulate all the A ARX AU AUX and AX variant?

Thanks.
-Hongtao.