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
70 * list of options controllable from both the command line
73 UINTN alt_check; /* always check for alternate kernel */
74 UINTN debug; /* debug print() on */
75 UINTN delay; /* delay before booting the image */
76 UINTN verbose; /* verbosity level [1-5] */
77 CHAR16 initrd[FILENAME_MAXLEN]; /* name of file for initial ramdisk */
78 UINT8 delay_set; /* mark whether or not delay was specified on cmdline */
79 UINT8 edd30_on; /* true is EDD30 variable is TRUE */
80 UINT8 edd30_no_force; /* don't force EDD30 variable to true */
82 * list of options controllable from either the command line
85 UINTN prompt; /* enter interactive mode */
86 UINTN parse_only; /* only parses the config file */
87 UINTN timeout; /* timeout before leaving interactive mode*/
89 image_opt_t img_opt; /* architecture independent per image options*/
91 sys_img_options_t *sys_img_opts; /* architecture depdendent per image options */
93 CHAR16 default_kernel[FILENAME_MAXLEN];
94 CHAR16 default_config[FILENAME_MAXLEN];
96 CHAR16 config[FILENAME_MAXLEN]; /* name of config file */
97 CHAR16 chooser[FILENAME_MAXLEN]; /* image chooser to use */
101 extern elilo_config_t elilo_opt;
103 extern EFI_SYSTEM_TABLE *systab;
117 EFI_MEMORY_DESCRIPTOR *md;
125 #define MAX(a,b) ((a)>(b) ? (a) : (b))
129 #define MIN(a,b) ((a)>(b) ? (b) : (a))
132 #define VERB_PRT(n,cmd) \
133 { if (elilo_opt.verbose >= (n)) { cmd; } }
137 extern INTN alloc_init(VOID);
138 extern VOID *alloc(UINTN, EFI_MEMORY_TYPE);
139 extern VOID free(VOID *);
140 extern VOID *alloc_pages(UINTN, EFI_MEMORY_TYPE, EFI_ALLOCATE_TYPE, VOID *);
141 extern VOID free_pages(VOID *);
142 extern VOID free_all(VOID);
143 extern INTN alloc_kmem(VOID *, UINTN);
144 extern VOID free_kmem(VOID);
145 extern VOID free_all_memory(VOID);
148 extern INTN read_file(UINTN fd, UINTN, CHAR8 *);
149 extern EFI_STATUS check_abort(VOID);
150 extern VOID reset_input(VOID);
151 extern INTN wait_timeout(UINTN);
152 extern INTN argify(CHAR16 *, UINTN, CHAR16 **);
153 extern VOID unargify(CHAR16 **, CHAR16 **);
154 extern void split_args(CHAR16 *, CHAR16 *, CHAR16 *);
155 extern INTN get_memmap(mmap_desc_t *);
156 extern VOID free_memmap(mmap_desc_t *);
157 extern INTN find_kernel_memory(VOID *low_addr, VOID *max_addr, UINTN alignment, VOID ** start);
158 extern VOID print_memmap(mmap_desc_t *);
159 extern VOID ascii2U(CHAR8 *, CHAR16 *, UINTN);
160 extern VOID U2ascii(CHAR16 *, CHAR8 *, UINTN);
162 /* from config.c (more in config.h) */
163 extern EFI_STATUS read_config(CHAR16 *, INTN retry);
164 extern VOID print_config_options(VOID);
165 extern INTN find_label(CHAR16 *, CHAR16 *, CHAR16 *, CHAR16 *);
166 extern VOID print_label_list(VOID);
167 extern INTN config_init(VOID);
168 extern CHAR16 *get_message_filename(INTN which);
169 extern CHAR16 *find_description(CHAR16 *label);
170 extern VOID *get_next_description(VOID *prev, CHAR16 **label, CHAR16 **description);
171 extern CHAR16 *get_config_file(VOID);
174 extern INTN load_initrd(CHAR16 *, memdesc_t *);
176 /* from alternate.c */
177 extern INTN alternate_kernel(CHAR16 *, INTN);
179 /* from bootparams.c */
180 extern VOID *create_boot_params (CHAR16 *, memdesc_t *, UINTN *);
181 extern VOID free_boot_params(VOID *bp);
184 * architecture-specific API
188 extern INTN sysdeps_create_boot_params(boot_params_t *, CHAR8 *, memdesc_t *, UINTN *);
189 extern VOID sysdeps_free_boot_params(boot_params_t *);
190 extern INTN sysdeps_init(EFI_HANDLE dev);
191 extern INTN sysdeps_initrd_get_addr(kdesc_t *, memdesc_t *);
192 extern INTN sysdeps_preloop_actions(EFI_HANDLE, CHAR16 **, INTN, INTN, EFI_HANDLE);
193 extern CHAR16 *sysdeps_get_cmdline_opts(VOID);
194 extern INTN sysdeps_getopt(INTN, INTN, CHAR16 *);
195 extern VOID sysdeps_print_cmdline_opts(VOID);
196 extern INTN sysdeps_register_options(VOID);
198 #define CHAR_SLASH L'/'
199 #define CHAR_BACKSLASH L'\\'
201 #endif /* __ELILO_H__ */