-
Notifications
You must be signed in to change notification settings - Fork 0
/
bootm.h
174 lines (147 loc) · 5.18 KB
/
bootm.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, [email protected].
*/
#ifndef _BOOTM_H
#define _BOOTM_H
#include <image.h>
struct boot_params;
struct cmd_tbl;
#define BOOTM_ERR_RESET (-1)
#define BOOTM_ERR_OVERLAP (-2)
#define BOOTM_ERR_UNIMPLEMENTED (-3)
/*
* Continue booting an OS image; caller already has:
* - copied image header to global variable `header'
* - checked header magic number, checksums (both header & image),
* - verified image architecture (PPC) and type (KERNEL or MULTI),
* - loaded (first part of) image to header load address,
* - disabled interrupts.
*
* @flag: Flags indicating what to do (BOOTM_STATE_...)
* @argc: Number of arguments. Note that the arguments are shifted down
* so that 0 is the first argument not processed by U-Boot, and
* argc is adjusted accordingly. This avoids confusion as to how
* many arguments are available for the OS.
* @images: Pointers to os/initrd/fdt
* Return: 1 on error. On success the OS boots so this function does
* not return.
*/
typedef int boot_os_fn(int flag, int argc, char *const argv[],
struct bootm_headers *images);
extern boot_os_fn do_bootm_linux;
extern boot_os_fn do_bootm_vxworks;
int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
boot_os_fn *bootm_os_get_boot_func(int os);
#if defined(CONFIG_FIT_SIGNATURE)
int bootm_host_load_images(const void *fit, int cfg_noffset);
#endif
int boot_selected_os(int argc, char *const argv[], int state,
struct bootm_headers *images, boot_os_fn *boot_fn);
ulong bootm_disable_interrupts(void);
/* This is a special function used by booti/bootz */
int bootm_find_images(int flag, int argc, char *const argv[], ulong start,
ulong size);
int do_bootm_states(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[], int states, struct bootm_headers *images,
int boot_progress);
void arch_preboot_os(void);
/*
* boards should define this to disable devices when EFI exits from boot
* services.
*
* TODO([email protected]>): Update this to use driver model's device_remove().
*/
void board_quiesce_devices(void);
/**
* switch_to_non_secure_mode() - switch to non-secure mode
*/
void switch_to_non_secure_mode(void);
/* Flags to control bootm_process_cmdline() */
enum bootm_cmdline_t {
BOOTM_CL_SILENT = 1 << 0, /* Do silent console processing */
BOOTM_CL_SUBST = 1 << 1, /* Do substitution */
BOOTM_CL_ALL = 3, /* All substitutions */
};
/**
* arch_preboot_os() - arch specific configuration before booting
*/
void arch_preboot_os(void);
/**
* board_preboot_os() - board specific configuration before booting
*/
void board_preboot_os(void);
/*
* bootm_process_cmdline() - Process fix-ups for the command line
*
* This handles:
*
* - making Linux boot silently if requested ('silent_linux' envvar)
* - performing substitutions in the command line ('bootargs_subst' envvar)
*
* @maxlen must provide enough space for the string being processed plus the
* resulting string
*
* @buf: buffer holding commandline string to adjust
* @maxlen: Maximum length of buffer at @buf (including \0)
* @flags: Flags to control what happens (see bootm_cmdline_t)
* Return: 0 if OK, -ENOMEM if out of memory, -ENOSPC if the commandline is too
* long
*/
int bootm_process_cmdline(char *buf, int maxlen, int flags);
/**
* bootm_process_cmdline_env() - Process fix-ups for the command line
*
* Updates the 'bootargs' envvar as required. This handles:
*
* - making Linux boot silently if requested ('silent_linux' envvar)
* - performing substitutions in the command line ('bootargs_subst' envvar)
*
* @flags: Flags to control what happens (see bootm_cmdline_t)
* Return: 0 if OK, -ENOMEM if out of memory
*/
int bootm_process_cmdline_env(int flags);
/**
* zboot_start() - Boot a zimage
*
* Boot a zimage, given the component parts
*
* @addr: Address where the bzImage is moved before booting, either
* BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
* @base: Pointer to the boot parameters, typically at address
* DEFAULT_SETUP_BASE
* @initrd: Address of the initial ramdisk, or 0 if none
* @initrd_size: Size of the initial ramdisk, or 0 if none
* @cmdline: Command line to use for booting
* Return: -EFAULT on error (normally it does not return)
*/
int zboot_start(ulong addr, ulong size, ulong initrd, ulong initrd_size,
ulong base, char *cmdline);
/*
* zimage_get_kernel_version() - Get the version string from a kernel
*
* @params: boot_params pointer
* @kernel_base: base address of kernel
* Return: Kernel version as a NUL-terminated string
*/
const char *zimage_get_kernel_version(struct boot_params *params,
void *kernel_base);
/**
* zimage_dump() - Dump the metadata of a zimage
*
* This shows all available information in a zimage that has been loaded.
*
* @base_ptr: Pointer to the boot parameters, typically at address
* DEFAULT_SETUP_BASE
* @show_cmdline: true to show the full command line
*/
void zimage_dump(struct boot_params *base_ptr, bool show_cmdline);
/*
* bootm_boot_start() - Boot an image at the given address
*
* @addr: Image address
* @cmdline: Command line to set
*/
int bootm_boot_start(ulong addr, const char *cmdline);
#endif