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Re: [Qemu-devel] [PATCH] Target-arm: Add the Cortex-M4 CPU
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH] Target-arm: Add the Cortex-M4 CPU |
Date: |
Thu, 28 May 2015 23:03:31 +0100 |
On 28 May 2015 at 22:22, Liviu Ionescu <address@hidden> wrote:
>
>> On 29 May 2015, at 00:09, Aurelio C. Remonda <address@hidden> wrote:
>> All we'd have to do is add the ARM_FEATURE_VFP4 to the initfn.
>
> if it is that simple, why don't we add it in for now?
It's not -- the FPU needs support in the exception handling
(lazy FPU saving is particularly interesting, but there's also
a bunch of minor stuff like "expose the FPU version registers
as memory mapped regs" IIRC).
-- PMM
Re: [Qemu-devel] [PATCH] Target-arm: Add the Cortex-M4 CPU, Peter Crosthwaite, 2015/05/30