alt Hacker NewsApple's PSCI interface is not a mystery, and there is perfect knowledge on how it is implemented. It isn't. Which is the actual problem, Linux wants PSCI, Apple platforms do not have it.
Apple's PSCI interface is not a mystery, and there is perfect knowledge on how it is implemented. It isn't. Which is the actual problem, Linux wants PSCI, Apple platforms do not have it.
Case in point. Devicetree drivers make this much harder than ACPI (say what you will about ACPI) and there's no documentation that fills the gap.