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Re: [Qemu-devel] [PATCH target-arm v4 02/16] target-arm: cpu64: Factor o


From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH target-arm v4 02/16] target-arm: cpu64: Factor out ARM cortex init
Date: Thu, 23 Apr 2015 18:35:05 +0100

On 23 March 2015 at 11:05, Peter Crosthwaite
<address@hidden> wrote:
> In preparation for support for Cortex a53. Use "axx" to describe the
> shareable features. Some of the CP15 registers (such as ACTLR) are
> specific to implementation, but we currently just RAZ them so continue
> with that as the policy for all cortex A processors under a shared
> definition.
>
> The cache sizes and geometeries, the L1 I-cache policy and the physical
> address range differ between A53 and A57 so those particulars are left
> as A57 specific. The rest are moved to the generalisation.

I'm not a huge fan of this as it seems unlikely that every CPU
with a "Cortex-Axx" is going to look so similar to the A57.

Call the reginfo table cortex_a53_a57_cp_reginfo if you want
to share it, but I would leave the initfns completely separate
personally.

-- PMM



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