syscall.sh / s390x / io_setup

io_setup

create an asynchronous I/O context

sys_io_setup(unsigned nr_events, aio_context_t *ctxp)
number243 (0xf3)
abicommon
entry pointsys_io_setup
sinceLinux 4.16
man pageio_setup(2)
sourceelixir.bootlin.com

Registers

registervalue
r1243, the syscall number
r2unsigned nr_events
r3aio_context_t *ctxp
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/io_setup