On Tue, Jan 21, 2025 at 10:06:47AM +0800, Tao Su wrote: > Update SierraForest CPU model to add LAM, 4 bits indicating certain bits > of IA32_SPEC_CTR are supported(intel-psfd, ipred-ctrl, rrsba-ctrl, > bhi-ctrl) and the missing features(ss, tsc-adjust, cldemote, movdiri, > movdir64b) > > Also add GDS-NO and RFDS-NO to indicate the related vulnerabilities are > mitigated in stepping 3.
Does this only apply to stepping 3? I don't think Sierra Forest was ever vulnerable to GDS and RFDS [1]. There are many other vulnerabilities that Sierra Forest is not vulnerable to, is it really necessary to add the *_NO bits to CPU definitions? [1] https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html
