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SubjectRe: [PATCH v5 14/28] x86/fpu/xstate: Prevent unauthorised use of dynamic user state
On Jun 16, 2021, at 12:28, Hansen, Dave <> wrote:
> That's odd. How is it possible that the performance of XGETBV(1)
> informed the design of that patch without there being any mention of
> XGETBV in the comments or changelog?

Yes, I admit that it is wrong that the text there highlights the benefit
without fairly mentioning the cost. I will make sure v6 covers them all.


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