Developer details early Linux boot progress on Apple’s M4 Mac mini despite new SPTM security hurdles

A developer describes the first steps toward booting Linux on an M4 Mac mini, building on prior Asahi Linux work. The effort was complicated by Apple’s new Secure Page Table Monitor requirement and hardware behavior that broke existing bring-up assumptions, including locked GXF functionality in raw boot mode.

Apple’s M4 generation appears to raise the bar for alternative OS support by making prior tracing and hypervisor-based workflows harder to use. The work highlights how community Linux support for Apple Silicon now depends on deeper reverse engineering of security and boot architecture, not just device driver enablement.