Re: Encrypted Message

On Mon, 4 Mar 2019, speck for Jon Masters wrote:
> > Documentation also recommends to use a writable data segment selector:
> > 
> >   "The buffer overwriting occurs regardless of the result of the VERW
> >    permission check, as well as when the selector is null or causes a
> >    descriptor load segment violation. However, for lowest latency we
> >    recommend using a selector that indicates a valid writable data
> >    segment."
>
> Note that we raised this again with Intel last week amid Andrew's
> results and they are going to get back to us if this guidance changes as
> a result of further measurements on their end. It's a few cycles
> difference in the Coffeelake case, but it could always be higher.

Ok. We can fix that up on top once we have final answers.

Thanks,

	tglx