Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.
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sde: AMX unexpectedly reported available without XFD

Beulich__Jan
New Contributor I
‎05-04-2021 12:56 AM
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With -spr and -future, AMX is reported as available, but XFD isn't. Is this intentional? If so, is this an indication that XFD (as one may imply also from the spec alone) is not strictly a prereq of AMX?

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AdyT_Intel
Moderator
‎06-20-2021 06:57 AM
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Since SDE is user space only, it does not emulate and it does not require (from the application) XFD for emulating AMX.
SDE still does not support save/restore for AMX features with the XSAVE instructions.

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