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Re: [Qemu-ppc] [PATCH 2/2] PPC: Fix TLB invalidation bug within the PPC

From: Mark Cave-Ayland
Subject: Re: [Qemu-ppc] [PATCH 2/2] PPC: Fix TLB invalidation bug within the PPC interrupt handler.
Date: Fri, 23 Mar 2012 13:35:24 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20120207 Icedove/3.0.11

On 22/03/12 20:37, Scott Wood wrote:

I wonder why this is done again at the end of the function for booke
(without regard to MSR bits).  It seems like the above flush should
handle booke as well as classic -- though the comment should be
"changed/deactivated" rather than "disactivated", since on booke those
bits just switch from one translation to another.

Hmmm good spot. I'm afraid I don't know enough about PPC to know why this is the case, but if people are primarily testing BookE then it could help explain why the tlb_flush() bug hasn't been detected before now.

BTW, PPC patches should be sent to both qemu-devel@ and qemu-ppc@, not
just the latter.

Sure. I'm a little confused as to the differentiation between the two lists at the moment, as it seems everyone is on both lists? Is qemu-ppc meant more for discussion rather than patches?



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