static void
kexec_halt_all_cpus(void *kernel_image)
{
static atomic_t cpuid = ATOMIC_INIT(-1);
int cpu;
struct kimage *image;
relocate_kernel_t data_mover;
#ifdef CONFIG_PFAULT
if (MACHINE_IS_VM)
pfault_fini();
#endif
if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) != -1)
signal_processor(smp_processor_id(), sigp_stop);
/* Wait for all other cpus to enter stopped state */
for_each_online_cpu(cpu) {
if (cpu == smp_processor_id())
continue;
while (!smp_cpu_not_running(cpu))
cpu_relax();
}
image = (struct kimage *) kernel_image;
data_mover = (relocate_kernel_t)
(page_to_pfn(image->control_code_page) << PAGE_SHIFT);
/* Call the moving routine */
(*data_mover) (&image->head, image->start);
}
static void do_machine_power_off_nonsmp(void)
{
if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0)
__cpcmd(vmpoff_cmd, NULL, 0, NULL);
signal_processor(smp_processor_id(), sigp_stop_and_store_status);
}
