41-94 Vol. 3D

SGX INSTRUCTION REFERENCES

(* Update EPCM permissions *)
EPCM(DS:RCX).R  EPCM(DS:RCX).R | SCRATCH_SECINFO.FLAGS.R;
EPCM(DS:RCX).W  EPCM(DS:RCX).W | SCRATCH_SECINFO.FLAGS.W;
EPCM(DS:RCX).X  EPCM(DS:RCX).X | SCRATCH_SECINFO.FLAGS.X;

Flags Affected

None

Protected Mode Exceptions

#GP(0)

If a memory operand effective address is outside the DS segment limit.
If a memory operand is not properly aligned.
If a memory operand is locked.

#PF(error code)

If a page fault occurs in accessing memory operands.

64-Bit Mode Exceptions

#GP(0)

If a memory operand is non-canonical form.
If a memory operand is not properly aligned.
If a memory operand is locked.

#PF(error code)

If a page fault occurs in accessing memory operands.