void dom0_shutdown(u8 reason) { switch ( reason ) { case SHUTDOWN_poweroff: { printk("Domain 0 halted: halting machine.\n"); machine_halt(); break; /* not reached */ } case SHUTDOWN_crash: { debugger_trap_immediate(); printk("Domain 0 crashed: "); maybe_reboot(); break; /* not reached */ } case SHUTDOWN_reboot: { printk("Domain 0 shutdown: rebooting machine.\n"); machine_restart(0); break; /* not reached */ } default: { printk("Domain 0 shutdown (unknown reason %u): ", reason); maybe_reboot(); break; /* not reached */ } } }
void hwdom_shutdown(u8 reason) { switch ( reason ) { case SHUTDOWN_poweroff: printk("Hardware Dom%u halted: halting machine\n", hardware_domain->domain_id); machine_halt(); break; /* not reached */ case SHUTDOWN_crash: debugger_trap_immediate(); printk("Hardware Dom%u crashed: ", hardware_domain->domain_id); #ifdef CONFIG_KEXEC kexec_crash(); #endif maybe_reboot(); break; /* not reached */ case SHUTDOWN_reboot: printk("Hardware Dom%u shutdown: rebooting machine\n", hardware_domain->domain_id); machine_restart(0); break; /* not reached */ case SHUTDOWN_watchdog: printk("Hardware Dom%u shutdown: watchdog rebooting machine\n", hardware_domain->domain_id); #ifdef CONFIG_KEXEC kexec_crash(); #endif machine_restart(0); break; /* not reached */ default: printk("Hardware Dom%u shutdown (unknown reason %u): ", hardware_domain->domain_id, reason); maybe_reboot(); break; /* not reached */ } }
void domain_shutdown(struct domain *d, u8 reason) { struct vcpu *v; if ( d->domain_id == 0 ) { extern void machine_restart(char *); extern void machine_halt(void); debugger_trap_immediate(); if ( reason == SHUTDOWN_poweroff ) { printk("Domain 0 halted: halting machine.\n"); machine_halt(); } else if ( reason == SHUTDOWN_crash ) { printk("Domain 0 crashed: rebooting machine in 5 seconds.\n"); watchdog_disable(); //mdelay(5000); machine_restart(0); } else { printk("Domain 0 shutdown: rebooting machine.\n"); machine_restart(0); } } /* Mark the domain as shutting down. */ d->shutdown_code = reason; /* Put every vcpu to sleep, but don't wait (avoids inter-vcpu deadlock). */ for_each_vcpu ( d, v ) { atomic_inc(&v->pausecnt); vcpu_sleep_nosync(v); }
static void __init __start_xen(void) { memcpy(0, exception_vectors, exception_vectors_end - exception_vectors); synchronize_caches(0, exception_vectors_end - exception_vectors); ticks_per_usec = timebase_freq / 1000000ULL; /* Parse the command-line options. */ cmdline_parse(xen_cmdline); /* we need to be able to identify this CPU early on */ init_boot_cpu(); /* We initialise the serial devices very early so we can get debugging. */ ns16550.io_base = 0x3f8; ns16550_init(0, &ns16550); ns16550.io_base = 0x2f8; ns16550_init(1, &ns16550); serial_init_preirq(); init_console(); console_start_sync(); /* Stay synchronous for early debugging. */ rtas_init((void *)oftree); memory_init(); printk("xen_cmdline: %016lx\n", (ulong)xen_cmdline); printk("dom0_cmdline: %016lx\n", (ulong)dom0_cmdline); printk("dom0_addr: %016lx\n", (ulong)dom0_addr); printk("dom0_len: %016lx\n", (ulong)dom0_len); printk("initrd_start: %016lx\n", (ulong)initrd_start); printk("initrd_len: %016lx\n", (ulong)initrd_len); printk("dom0: %016llx\n", *(unsigned long long *)dom0_addr); #ifdef OF_DEBUG key_ofdump(0); #endif percpu_init_areas(); init_parea(0); cpu_initialize(0); #ifdef CONFIG_GDB initialise_gdb(); if (opt_earlygdb) debugger_trap_immediate(); #endif start_of_day(); acm_init(NULL, 0); mpic_setup_this_cpu(); /* Deal with secondary processors. */ if (opt_nosmp || ofd_boot_cpu == -1) { printk("nosmp: leaving secondary processors spinning forever\n"); } else { printk("spinning up at most %d total processors ...\n", max_cpus); kick_secondary_cpus(max_cpus); } /* This cannot be called before secondary cpus are marked online. */ percpu_free_unused_areas(); /* Create initial domain 0. */ dom0 = domain_create(0, 0, DOM0_SSIDREF); if (dom0 == NULL) panic("Error creating domain 0\n"); /* The Interrupt Controller will route everything to CPU 0 so we * need to make sure Dom0's vVCPU 0 is pinned to the CPU */ dom0->vcpu[0]->cpu_affinity = cpumask_of_cpu(0); dom0->is_privileged = 1; /* scrub_heap_pages() requires IRQs enabled, and we're post IRQ setup... */ local_irq_enable(); /* Scrub RAM that is still free and so may go to an unprivileged domain. */ scrub_heap_pages(); if ((dom0_addr == 0) || (dom0_len == 0)) panic("No domain 0 found.\n"); if (construct_dom0(dom0, dom0_addr, dom0_len, initrd_start, initrd_len, dom0_cmdline) != 0) { panic("Could not set up DOM0 guest OS\n"); } init_xenheap_pages(ALIGN_UP(dom0_addr, PAGE_SIZE), ALIGN_DOWN(dom0_addr + dom0_len, PAGE_SIZE)); if (initrd_start) init_xenheap_pages(ALIGN_UP(initrd_start, PAGE_SIZE), ALIGN_DOWN(initrd_start + initrd_len, PAGE_SIZE)); init_trace_bufs(); console_endboot(); /* Hide UART from DOM0 if we're using it */ serial_endboot(); console_end_sync(); domain_unpause_by_systemcontroller(dom0); #ifdef DEBUG_IPI ipi_torture_test(); #endif startup_cpu_idle_loop(); }