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SubjectRe: [patch 1/6] x86/fpu: Extend fpu_xstate_prctl() with guest permissions
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On 12/14/21 06:13, Tian, Kevin wrote:
>> 2) Permissions are frozen when the first vCPU is created to ensure
>> consistency. Any attempt to expand permissions via the prctl() after
>> that point is rejected.
>
> A curiosity question. Do we allow the user to reduce permissions?

No, there's no prctl for that.

Paolo

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