r0 = openat$nvram(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = io_uring_setup(0x5fcd, &(0x7f0000000040))
io_uring_register$IORING_REGISTER_EVENTFD(r1, 0x4, &(0x7f00000000c0)=r0, 0x1)