This is xnu-11215.1.10. See this file in:
xnu-8792.81.2 (MacOS 18, Darwin 22)
xnu-8019 (MacOS 17.0, Darwin 21)
xnu-6153.11.26 (MacOS 15.0, Darwin 19)
xnu-4903.221.2 (MacOS 14.0, Darwin 18)
xnu-4570.41.2 (MacOS 13.3, Darwin 17)
xnu-3789.70.16 (MacOS 12.6, Darwin 16)
xnu-3248.20.55 (MacOS 11.2, Darwin 15)
xnu-2782.40.9 (MacOS 10.10.5, Darwin 14)
xnu-2422.115.4 (MacOS 10.9.5, Darwin 13)
xnu-2050.24.15 (MacOS 10.8.4, Darwin 12)
xnu-1699.32.7 (MacOS 10.7.5, Darwin 11)
xnu-1504.15.3 (MacOS 10.6.8, Darwin 10)
xnu-1228.15.4 (MacOS 10.5.8, Darwin 9)
Directory listing for
xnu-11215.1.10//osfmk/machine
Makefile
asm.h
atomic.h
commpage.h
config.h
cpu_affinity.h
cpu_capabilities.h
cpu_data.h
cpu_number.h
endian.h
lock.h
locks.h
lowglobals.h
machine_cpu.h
machine_cpuid.h
machine_kpc.h
machine_remote_time.h
machine_routines.h
machine_rpc.h
machlimits.h
machparam.h
memory_types.h
monotonic.h
pal_hibernate.h
pal_routines.h
pmap.h
sched_param.h
setjmp.h
simple_lock.h
smp.h
string.h
task.h
thread.h
trap.h
trap_internal.h
vm_tuning.h