http://damaga377vyvydeqeuigxvl6g5sbmipoxb5nne6gpj3sisbnslbhvrqd.onion/books?page=7
It goes further into memory management (vm_map , pmap and the kernel zone allocator), processes, threads, Mach IPC internals, the Virtual Filesystem Switch, and more. Never before published details about the Apple File System (APFS), Secure Enclave Processor OS (SEPOS), iBoot, Mac EFI and more are explained in meticulous detail and fine illustrations.