2 * Copyright (C) 2001-2003 Hewlett-Packard Co.
3 * Contributed by Stephane Eranian <eranian@hpl.hp.com>
5 * Copyright (C) 2001 Silicon Graphics, Inc.
6 * Contributed by Brent Casavant <bcasavan@sgi.com>
8 * This file is part of the ELILO, the EFI Linux boot loader.
10 * GNU EFI is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
15 * GNU EFI is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with GNU EFI; see the file COPYING. If not, write to the Free
22 * Software Foundation, 59 Temple Place - Suite 330, Boston, MA
25 * Please check out the elilo.txt for complete documentation on how
26 * to use this program.
34 #include "elilo_debug.h"
43 #define MB (1024*1024) /* 1 megabyte */
45 /* Round X up/down to A, which must be an integer power of two. */
46 #define ROUNDUP(x,a) (((x) + (a) - 1) & ~((a) - 1))
47 #define ROUNDDOWN(x,a) ((x) & ~((a) - 1))
52 #define ELILO_LOAD_SUCCESS 0
53 #define ELILO_LOAD_ABORTED 1
54 #define ELILO_LOAD_ERROR 2
55 #define ELILO_LOAD_RETRY 3
57 #define ELILO_DEFAULT_TIMEOUT ELILO_TIMEOUT_INFINITY
58 #define ELILO_TIMEOUT_INFINITY (~0UL)
60 #define CMDLINE_MAXLEN 512 /* needed by ia32 */
61 #define FILENAME_MAXLEN 256
63 /* Just pick an arbitrary number that's high enough for now :o) */
64 #define MAX_DEFAULT_CONFIGS 16
70 typedef struct config_file {
71 CHAR16 fname[FILENAME_MAXLEN];
76 * list of options controllable from both the command line
79 UINTN alt_check; /* always check for alternate kernel */
80 UINTN debug; /* debug print() on */
81 UINTN delay; /* delay before booting the image */
82 UINTN verbose; /* verbosity level [1-5] */
83 CHAR16 initrd[FILENAME_MAXLEN]; /* name of file for initial ramdisk */
84 CHAR16 vmcode[FILENAME_MAXLEN]; /* name of file for boot time module*/
85 UINT8 delay_set; /* mark whether or not delay was specified on cmdline */
86 UINT8 edd30_on; /* true is EDD30 variable is TRUE */
87 UINT8 edd30_no_force; /* don't force EDD30 variable to true */
89 * list of options controllable from either the command line
92 UINTN prompt; /* enter interactive mode */
93 UINTN parse_only; /* only parses the config file */
94 UINTN timeout; /* timeout before leaving interactive mode*/
96 image_opt_t img_opt; /* architecture independent per image options*/
98 sys_img_options_t *sys_img_opts; /* architecture depdendent per image options */
100 CHAR16 default_kernel[FILENAME_MAXLEN];
101 /* CHAR16 default_config[FILENAME_MAXLEN]; */
102 config_file_t default_configs[MAX_DEFAULT_CONFIGS];
104 CHAR16 config[FILENAME_MAXLEN]; /* name of config file */
105 CHAR16 chooser[FILENAME_MAXLEN]; /* image chooser to use */
109 extern elilo_config_t elilo_opt;
111 extern EFI_SYSTEM_TABLE *systab;
126 EFI_MEMORY_DESCRIPTOR *md;
134 #define MAX(a,b) ((a)>(b) ? (a) : (b))
138 #define MIN(a,b) ((a)>(b) ? (b) : (a))
141 #define VERB_PRT(n,cmd) \
142 { if (elilo_opt.verbose >= (n)) { cmd; } }
146 extern INTN alloc_init(VOID);
147 extern VOID *alloc(UINTN, EFI_MEMORY_TYPE);
148 extern VOID free(VOID *);
149 extern VOID *alloc_pages(UINTN, EFI_MEMORY_TYPE, EFI_ALLOCATE_TYPE, VOID *);
150 extern VOID free_pages(VOID *);
151 extern VOID free_all(VOID);
152 extern INTN alloc_kmem(VOID *, UINTN);
153 extern VOID free_kmem(VOID);
154 extern VOID free_all_memory(VOID);
157 extern INTN read_file(UINTN fd, UINTN, CHAR8 *);
158 extern EFI_STATUS check_abort(VOID);
159 extern VOID reset_input(VOID);
160 extern INTN wait_timeout(UINTN);
161 extern INTN argify(CHAR16 *, UINTN, CHAR16 **);
162 extern VOID unargify(CHAR16 **, CHAR16 **);
163 extern void split_args(CHAR16 *, CHAR16 *, CHAR16 *);
164 extern INTN get_memmap(mmap_desc_t *);
165 extern VOID free_memmap(mmap_desc_t *);
166 extern INTN find_kernel_memory(VOID *low_addr, VOID *max_addr, UINTN alignment, VOID ** start);
167 extern VOID print_memmap(mmap_desc_t *);
168 extern VOID ascii2U(CHAR8 *, CHAR16 *, UINTN);
169 extern VOID U2ascii(CHAR16 *, CHAR8 *, UINTN);
171 /* from config.c (more in config.h) */
172 extern EFI_STATUS read_config(CHAR16 *);
173 extern VOID print_config_options(VOID);
174 extern INTN find_label(CHAR16 *, CHAR16 *, CHAR16 *, CHAR16 *, CHAR16 *);
175 extern VOID print_label_list(VOID);
176 extern INTN config_init(VOID);
177 extern CHAR16 *get_message_filename(INTN which);
178 extern CHAR16 *find_description(CHAR16 *label);
179 extern VOID *get_next_description(VOID *prev, CHAR16 **label, CHAR16 **description);
180 extern CHAR16 *get_config_file(VOID);
183 extern INTN load_file(CHAR16 *, memdesc_t *);
185 /* from alternate.c */
186 extern INTN alternate_kernel(CHAR16 *, INTN);
188 /* from bootparams.c */
189 extern VOID *create_boot_params (CHAR16 *, memdesc_t *, memdesc_t *, UINTN *);
190 extern VOID free_boot_params(VOID *bp);
193 * architecture-specific API
197 extern INTN sysdeps_create_boot_params(boot_params_t *, CHAR8 *, memdesc_t *, memdesc_t *, UINTN *);
198 extern VOID sysdeps_free_boot_params(boot_params_t *);
199 extern INTN sysdeps_init(EFI_HANDLE dev);
200 extern INTN sysdeps_initrd_get_addr(kdesc_t *, memdesc_t *);
201 extern INTN sysdeps_preloop_actions(EFI_HANDLE, CHAR16 **, INTN, INTN, EFI_HANDLE);
202 extern CHAR16 *sysdeps_get_cmdline_opts(VOID);
203 extern INTN sysdeps_getopt(INTN, INTN, CHAR16 *);
204 extern VOID sysdeps_print_cmdline_opts(VOID);
205 extern INTN sysdeps_register_options(VOID);
207 #define CHAR_SLASH L'/'
208 #define CHAR_BACKSLASH L'\\'
210 #endif /* __ELILO_H__ */