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SubjectRe: [RFC PATCH v3 for 4.15 08/24] Provide cpu_opv system call
On Thu, 16 Nov 2017, Andi Kleen wrote:
> My preference would be just to drop this new super ugly system call.
>
> It's also not just the ugliness, but the very large attack surface
> that worries me here.
>
> As far as I know it is only needed to support single stepping, correct?

I can't figure that out because the changelog describes only WHAT the patch
does and not WHY. Useful, isn't it?

> Then this whole mess would disappear.

Agreed. That would be much appreciated.

Thanks,

tglx

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