kexec_load

load a new kernel for later execution

sys_kexec_load(unsigned long entry, unsigned long nr_segments, struct kexec_segment *segments, unsigned long flags)

register	value
`g1`	306, the syscall number
`o0`	unsigned long entry
`o1`	unsigned long nr_segments
`o2`	struct kexec_segment *segments
`o3`	unsigned long flags
`o0`	the return value

Then run t 0x6d to enter the kernel.

Same syscall on other architectures