1 /* 2 * Copyright 2002-2009, Axel Dörfler, axeld@pinc-software.de. 3 * Distributed under the terms of the MIT License. 4 * 5 * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved. 6 * Distributed under the terms of the NewOS License. 7 */ 8 #ifndef KERNEL_BOOT_KERNEL_ARGS_H 9 #define KERNEL_BOOT_KERNEL_ARGS_H 10 11 12 #include <SupportDefs.h> 13 14 #include <boot/elf.h> 15 #include <boot/disk_identifier.h> 16 #include <boot/driver_settings.h> 17 18 #include <platform_kernel_args.h> 19 #include <arch_kernel_args.h> 20 21 #include <util/FixedWidthPointer.h> 22 23 24 #define CURRENT_KERNEL_ARGS_VERSION 1 25 #define MAX_KERNEL_ARGS_RANGE 20 26 27 // names of common boot_volume fields 28 #define BOOT_METHOD "boot method" 29 #define BOOT_VOLUME_USER_SELECTED "user selected" 30 #define BOOT_VOLUME_BOOTED_FROM_IMAGE "booted from image" 31 #define BOOT_VOLUME_PACKAGED "packaged" 32 #define BOOT_VOLUME_PACKAGES_STATE "packages state" 33 #define BOOT_VOLUME_PARTITION_OFFSET "partition offset" 34 #define BOOT_VOLUME_DISK_IDENTIFIER "disk identifier" 35 36 // boot methods 37 enum { 38 BOOT_METHOD_HARD_DISK = 0, 39 BOOT_METHOD_CD = 1, 40 BOOT_METHOD_NET = 2, 41 42 BOOT_METHOD_DEFAULT = BOOT_METHOD_HARD_DISK 43 }; 44 45 typedef struct kernel_args { 46 uint32 kernel_args_size; 47 uint32 version; 48 49 FixedWidthPointer<struct preloaded_image> kernel_image; 50 FixedWidthPointer<struct preloaded_image> preloaded_images; 51 52 uint32 num_physical_memory_ranges; 53 addr_range physical_memory_range[MAX_PHYSICAL_MEMORY_RANGE]; 54 uint32 num_physical_allocated_ranges; 55 addr_range physical_allocated_range[MAX_PHYSICAL_ALLOCATED_RANGE]; 56 uint32 num_virtual_allocated_ranges; 57 addr_range virtual_allocated_range[MAX_VIRTUAL_ALLOCATED_RANGE]; 58 uint32 num_kernel_args_ranges; 59 addr_range kernel_args_range[MAX_KERNEL_ARGS_RANGE]; 60 uint64 ignored_physical_memory; 61 62 uint32 num_cpus; 63 addr_range cpu_kstack[SMP_MAX_CPUS]; 64 65 // boot volume KMessage data 66 FixedWidthPointer<void> boot_volume; 67 int32 boot_volume_size; 68 69 FixedWidthPointer<struct driver_settings_file> driver_settings; 70 71 struct { 72 addr_range physical_buffer; 73 uint32 bytes_per_row; 74 uint16 width; 75 uint16 height; 76 uint8 depth; 77 bool enabled; 78 } frame_buffer; 79 80 FixedWidthPointer<void> vesa_modes; 81 uint16 vesa_modes_size; 82 uint8 vesa_capabilities; 83 FixedWidthPointer<void> edid_info; 84 85 FixedWidthPointer<void> debug_output; 86 // If keep_debug_output_buffer, points to a ring_buffer, else to a 87 // simple flat buffer. In either case it stores the debug output from 88 // the boot loader. 89 FixedWidthPointer<void> previous_debug_output; 90 // A flat pointer to a buffer containing the debug output from the 91 // previous session. May be NULL. 92 uint32 debug_size; 93 // If keep_debug_output_buffer, the size of the ring buffer, otherwise 94 // the size of the flat buffer debug_output points to. 95 uint32 previous_debug_size; 96 // The size of the buffer previous_debug_output points to. Used as a 97 // boolean indicator whether to save the previous session's debug output 98 // until initialized for the kernel. 99 bool keep_debug_output_buffer; 100 // If true, debug_output is a ring buffer, otherwise a flat buffer. 101 102 platform_kernel_args platform_args; 103 arch_kernel_args arch_args; 104 105 // bootsplash data 106 FixedWidthPointer<uint8> boot_splash; 107 108 // optional microcode 109 FixedWidthPointer<void> ucode_data; 110 uint32 ucode_data_size; 111 112 } _PACKED kernel_args; 113 114 115 const size_t kernel_args_size_v1 = sizeof(kernel_args) 116 - sizeof(FixedWidthPointer<void>) - sizeof(uint32); 117 118 119 #endif /* KERNEL_BOOT_KERNEL_ARGS_H */ 120