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SubjectRe: [PATCH v30 04/20] x86/sgx: Add SGX microarchitectural data structures
On Mon, 2020-05-25 at 10:20 +0200, Borislav Petkov wrote:
> On Fri, May 22, 2020 at 10:50:17PM +0300, Jarkko Sakkinen wrote:
> > If other values except two are never going to be used it is more than a
> > legit point to validate this field.
> >
> > It also the potential to use ~0x8086 bits to be defined later if ever
> > needed lets say for some kernel specific purpose.
> Yah, let's cover our ass for the future. We have all seen the "this
> won't be used" but then "we're using it" change of heart. IOW, let's
> align with what the hw checks and we can always relax that in the future
> but not the other way around.
I fully agree with this conclusion and that is exactly how I think about
the issue too. I'll add a check for this.


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