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

PriyanshuYadav
Beginner
‎11-05-2024 03:44 AM
253 Views

Hi, I am new to ISA extensions and intel nomenclature, it is not very clear to me which all CPUs support CLDEMOTE ?
Intel® 64 and IA-32 Architectures Software Developer’s Manual states that
Intel Atom processor based on Tremont microarchitecture, 4th generation Intel® Xeon® Scalable
Processor Family based on Sapphire Rapids microarchitecture.
But when I run cpuid on a 13th Gen Intel(R) Core(TM) i9-13900KS it gives CLDEMOTE supports cache line demote = false for all CPUs, can someone help me with a list of model names that support CLDEMOTE instruction.

Thanks

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PriyanshuYadav
Beginner
‎11-05-2024 05:14 AM
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One followup question, is this instruction only supported for E-cores in alder lake processors ?

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