Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.
1057 Discussions

sde: KeyLocker insns with ZF output look to only ever set it

Beulich__Jan
Beginner
697 Views

It looks as if ZF would only ever get set for insns where this indicates a failure of some sort, but not clear it upon success. I've observed to with at least ENCODEKEY128 and AESENC128KL, and prefixing the insns with "test esp,esp" allows to work around the issue.

Can you confirm this behavior? If so, is it possible to have an indication as to when a fix would be available?

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AdyT_Intel
Moderator
611 Views

This should be fixed in the new release that we posted.

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Beulich__Jan
Beginner
687 Views

This looks to be worse upon further extension of the code I'm writing: The other status flags also look to not get cleared.

AdyT_Intel
Moderator
637 Views

We will check it and try to fix for the next release.

AdyT_Intel
Moderator
612 Views

This should be fixed in the new release that we posted.

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