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SubjectRe: [RFC PATCH 04/10 v2 ] x86/fpu: eager switch PKRU state
On 2018-09-18 17:29:52 [+0200], Paolo Bonzini wrote:
> > I don't think it matters what the PKRU state is
> > for kernel threads, since kernel PTEs should not
> > be using protection keys anyway.
>
> What about copy_from/to_user?

This doesn't work for a kernel thread, does it? I mean they share the
init's MM and never do copy_{from|to}_user.

> Paolo

Sebastian

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