syscall.sh / s390x / pkey_alloc

pkey_alloc

allocate or free a protection key

sys_pkey_alloc(unsigned long flags, unsigned long init_val)
number385 (0x181)
abicommon
entry pointsys_pkey_alloc
sinceLinux 5.1
man pagepkey_alloc(2)
sourceelixir.bootlin.com

Registers

registervalue
r1385, the syscall number
r2unsigned long flags
r3unsigned long init_val
r2the return value

Then run svc 0 to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/s390x/pkey_alloc