Commits on Sep 4, 2024

1. [FMV] Unify sha1, sha2. …

   According to ArmARM:
   
   SHA2, bits [15:12]
   0b0000 No SHA2 instructions implemented.
   FEAT_SHA256 implements the functionality identified by the value 0b0001.
   If the value of ID_AA64ISAR0_EL1.SHA1 is 0b0000, this field must have the value 0b0000.
   
   SHA1, bits [11:8]
   0b0000 No SHA1 instructions implemented.
   FEAT_SHA1 implements the functionality identified by the value 0b0001.
   If the value of ID_AA64ISAR0_EL1.SHA2 is 0b0000, this field must have the value 0b0000.
   
   To my understanding this means you can't have one without the other.

   

   labrinea committed Sep 4, 2024
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