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It's not that RISC-V guarantees truly transparent firmware and microcode; as you correctly point out, it does not. What RISC-V offers is the possibility of tru
by anonym29 4y ago
It's not that RISC-V guarantees truly transparent firmware and microcode; as you correctly point out, it does not.
What RISC-V offers is the possibility of truly transparent firmware and microcode. This comes as a refreshing alternative to x86, which guarantees that firmware and microcode, including those of security coprocessors (e.g. Intel CSME & AMD ST, formerly ME and PSP) will not be transparent.
- wmf 4y agoARM offers the same possibility but there's like one SoC that's fully transparent.
- anonym29 4y agoI am not as well-versed in the specifics of ARM's TrustZone as I am with Intel CSME and AMD ST, but I understand many of the people uncomfortable with the latter two are uncomfortable with the former as well. I do not believe it comes with the same capabilities as CSME or ST (PSP), but I do know that earlier versions of PSP were implemented using an ARM TrustZone core. That said, I need to do a lot more reading and research on it before forming more substantial positions on it.
- wmf 4y agoAFAIK you can build an ARM SoC without TrustZone (or without using TrustZone for anything) if you want.
- 7to2 4y agoARM offers the same possibility.. in exchange for a fee and a stack of NDAs. Competition and openness is how we should deal with this disease.