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I believe you, but can you provide a source for the Qualcomm firewall?
by throwaway48375 5y ago
I believe you, but can you provide a source for the Qualcomm firewall?
- marcan_42 5y agohttps://www.reddit.com/r/CopperheadOS/comments/6wtul0/on_sensationalism_about_basebands_all_future/ https://www.reddit.com/r/CopperheadOS/comments/6wtul0/on_sen... It's completely standard practice for SoCs to have IOMMUs these days. E.g. the Apple M1 has over a dozen coprocessors doing various things and sharing memory, but only the GPU coprocessor has access to OS memory (because it manages GPU page tables; we're working on figuring out exactly what the risks are with that one). Everything else is firewalled off. Well, most of them anyway. The one in the Librem 5 does not AIUI.