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correct, i forgot some context about what i meant "apple developing", apple allowed raw images to be used now, this is what i described being used in the cpu ma

by cartor 5y ago

correct, i forgot some context about what i meant "apple developing", apple allowed raw images to be used now, this is what i described being used in the cpu manufacturing process for testing units. this was not always an option. i meant this pseudo-feature being made public, not asahi which has been public and apple has been aware of for over a year see here: [1]: https://github.com/AsahiLinux/m1n1/commit/0d4fb00ceb8a14f08339c443458c5f6b7adb5a23 https://github.com/AsahiLinux/m1n1/commit/0d4fb00ceb8a14f083... [2]: https://news.ycombinator.com/item?id=29591578 https://news.ycombinator.com/item?id=29591578

marcan_42 5y ago
The raw image support has nothing to do with silicon bring-up. That is an option for a userspace tool running in macOS recovery mode. At that point you're well past silicon bring-up. I don't know why people keep conflating those two things... it doesn't make any sense whatsoever. Silicon bring-up would happen via iBoot on completely unlocked chips (no secureboot fuses). The raw image mode was added for us. Apple has absolutely zero use for such an option.
- my123 5y ago
  Internally, Apple uses a totally different mechanism to boot Linux, with the silicon validation firmware stack (that runs OpenFirmware of all things) chainloaded from iBoot.