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Re: [Qemu-ppc] [Qemu-devel] [PATCH 0/2] Clean up the ppc default configs

From: Peter Maydell
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH 0/2] Clean up the ppc default configs
Date: Tue, 16 Jan 2018 10:51:43 +0000

On 16 January 2018 at 10:41, Thomas Huth <address@hidden> wrote:
> On 15.01.2018 13:00, BALATON Zoltan wrote:
> [...]
>> I've also noticed that most of the boards were available both in ppcemb
>> and ppc targets so maybe these could be merged now to avoid confusion
>> but I don't know the reason why ppcemb existed in the first place so I
>> don't know what other implications dropping ppcemb may have.
> FYI: I've had a chat with Alexander Graf this morning in IRC, and the
> qemu-system-ppcemb was indeed only created for supporting the CPUs with
> page sizes < 4k. Everything else is supposed to work with
> qemu-system-ppc, too. Since likely nobody is using page sizes < 4k on
> embedded PPCs nowadays anymore (and Alex was also only aware of one
> home-brew OS that did this in the past is likely not available now
> anymore), I think we can go forward and start the deprecation of ppcemb.

We do now support runtime-settable page sizes (as a board model property),
so you could roll support for 1K pages into ppc-softmmu/ppc64-softmmu
if you wanted.

-- PMM

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