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Nov 21st, 2012
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  1. void machine_kexec(struct kimage *image)
  2. {
  3.     unsigned long page_list;
  4.     unsigned long reboot_code_buffer_phys;
  5.     void *reboot_code_buffer;
  6.  
  7.  
  8.     page_list = image->head & PAGE_MASK;
  9.  
  10.     /* we need both effective and real address here */
  11.     reboot_code_buffer_phys =
  12.         page_to_pfn(image->control_code_page) << PAGE_SHIFT;
  13.     reboot_code_buffer = page_address(image->control_code_page);
  14.  
  15.     /* Prepare parameters for reboot_code_buffer*/
  16.     kexec_start_address = image->start;
  17.     kexec_indirection_page = page_list;
  18.     kexec_mach_type = machine_arch_type;
  19.     kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;
  20. #ifdef CONFIG_KEXEC_HARDBOOT
  21.     kexec_hardboot = image->hardboot;
  22. #endif
  23.  
  24.     /* copy our kernel relocation code to the control code page */
  25.     memcpy(reboot_code_buffer,
  26.            relocate_new_kernel, relocate_new_kernel_size);
  27.  
  28.  
  29.     flush_icache_range((unsigned long) reboot_code_buffer,
  30.                (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
  31.     printk(KERN_INFO "Bye!\n");
  32.     printk("exec 1\n");
  33.     if (kexec_reinit)
  34.         kexec_reinit();
  35.     printk("exec 2\n");
  36.     local_irq_disable();
  37.     printk("exec 3\n");
  38.     local_fiq_disable();
  39.     printk("exec 4\n");
  40.     setup_mm_for_reboot(0); /* mode is not used, so just pass 0*/
  41.     printk("exec 5\n");
  42.     flush_cache_all();
  43.     printk("exec 6\n");
  44.     outer_flush_all();
  45.     printk("exec 7\n");
  46.     outer_disable();
  47.     printk("exec 8\n");
  48.     cpu_proc_fin();
  49.     printk("exec 9\n");
  50.     //outer_inv_all();
  51.     //flush_cache_all();
  52.     /* Must call cpu_reset via physical address since ARMv7 (& v6) stalls the
  53.      * pipeline after disabling the MMU. */
  54.     ((typeof(cpu_reset) *)virt_to_phys(cpu_reset))(reboot_code_buffer_phys);
  55. }
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