Posted by pizzaiolo 7 hours ago
You have to appreciate the effort Apple puts into security - goes some way to understanding why they won't endorse/support installing an alternative operating system.
> Rumours circulating that Apple are actively hostile towards efforts such as Asahi, or that their security must be bypassed or jailbroken to run untrusted code are unfounded and false. In fact, Apple have expended effort and time on improving their security tooling in ways that only improve the execution of non-macOS binaries. An example of this is giving their Boot Policy configuration tool the ability to wrap raw AArch64 code in a proper Mach-O format starting with macOS 12.1. This is only ever required for enrolling a boot object that is not already a macOS kernelcache.
Tremendous efforts would be to publish reference manuals for all their hardware components.
Apple is doing the bare minimum, which is to not build 10km tall walls around its walled garden.
But in the modern day of walled gardens, that's viewed as generosity.
To be perfectly clear, Apple is like a lifeline to a lot of people. They are one of the last bastions of quality in the hardware and software world. This is why it's such a disappointment that they've been faltering lately: we had high expectations of them, which hasn't been quite so true for the rest of the industry for a while. So it is a big deal that hidden gems like this continue to crop up from them: it is a sign that some of their core values still remain. And I really hope the new CEO will bring back some of what they lost after Steve Jobs.
Intel and AMD set the standard for "tremendous effort" bringing up support for alternative OSes. Nvidia follows behind, and Apple's support is (somehow) behind Nvidia's foot-dragging.
Yes, Apple put effort into making it possible to install alternative operating systems on Macs, but that is an exception to the design because the chips are designed to be locked down. I expect Apple to remove the option at some point because nobody is using it on any of the recent hardware.
You get a jmp to some arm64 instructions of your choosing, with a bunch of CPU features locked out.