Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.
1052 Discussions

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

Beulich__Jan
Beginner
554 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
468 Views

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

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3 Replies
Beulich__Jan
Beginner
544 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
494 Views

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

AdyT_Intel
Moderator
469 Views

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

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