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Re: [Qemu-devel] [PATCH for-3.0?] target/arm: Add sve-max-vq cpu propert

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH for-3.0?] target/arm: Add sve-max-vq cpu property to -cpu max
Date: Mon, 23 Jul 2018 23:11:58 +0100

On 23 July 2018 at 23:00, Richard Henderson
<address@hidden> wrote:
> This allows the default (and maximum) vector length to be set
> from the command-line.  Which is extraordinarily helpful in
> debuging problems depending on vector length without having to
> bake knowledge of PR_SET_SVE_VL into every guest binary.
> Signed-off-by: Richard Henderson <address@hidden>
> ---
> The argument for inclding this in 3.0 is that there appear to be
> several groups experimenting with SVE and using fixed vector lengths.
> While this is oddly against the design of SVE, it's probably going
> to keep happening.  Plus, the wildly useful debugging aspect.

...on the other hand, it's a new feature and we're about to
cut rc2 tomorrow. I'd prefer to leave this til after 3.0 releases.

-- PMM

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