1 // SPDX-License-Identifier: GPL-2.0+
10 * struct sysboot_info - useful information for sysboot helpers
12 * @fstype: Filesystem type (FS_TYPE_...)
13 * @ifname: Interface name (e.g. "ide", "scsi")
14 * @dev_part_str is in the format:
15 * <dev>.<hw_part>:<part> where <dev> is the device number,
16 * <hw_part> is the optional hardware partition number and
17 * <part> is the partition number
22 const char *dev_part_str;
25 static int sysboot_read_file(struct pxe_context *ctx, const char *file_path,
26 char *file_addr, ulong *sizep)
28 struct sysboot_info *info = ctx->userdata;
33 addr = simple_strtoul(file_addr, NULL, 16);
34 ret = fs_set_blk_dev(info->ifname, info->dev_part_str, info->fstype);
37 ret = fs_read(file_path, addr, 0, 0, &len_read);
46 * Boots a system using a local disk syslinux/extlinux file
48 * Returns 0 on success, 1 on error.
50 static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc,
53 unsigned long pxefile_addr_r;
54 struct pxe_context ctx;
55 char *pxefile_addr_str;
56 struct sysboot_info info;
61 if (argc > 1 && strstr(argv[1], "-p")) {
68 return cmd_usage(cmdtp);
71 pxefile_addr_str = from_env("pxefile_addr_r");
72 if (!pxefile_addr_str)
75 pxefile_addr_str = argv[4];
79 filename = env_get("bootfile");
82 env_set("bootfile", filename);
85 if (strstr(argv[3], "ext2")) {
86 info.fstype = FS_TYPE_EXT;
87 } else if (strstr(argv[3], "fat")) {
88 info.fstype = FS_TYPE_FAT;
89 } else if (strstr(argv[3], "any")) {
90 info.fstype = FS_TYPE_ANY;
92 printf("Invalid filesystem: %s\n", argv[3]);
95 info.ifname = argv[1];
96 info.dev_part_str = argv[2];
98 if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) {
99 printf("Invalid pxefile address: %s\n", pxefile_addr_str);
103 if (pxe_setup_ctx(&ctx, cmdtp, sysboot_read_file, &info, true,
105 printf("Out of memory\n");
106 return CMD_RET_FAILURE;
109 if (get_pxe_file(&ctx, filename, pxefile_addr_r) < 0) {
110 printf("Error reading config file\n");
111 pxe_destroy_ctx(&ctx);
115 ret = pxe_process(&ctx, pxefile_addr_r, prompt);
116 pxe_destroy_ctx(&ctx);
118 return CMD_RET_FAILURE;
123 U_BOOT_CMD(sysboot, 7, 1, do_sysboot,
124 "command to get and boot from syslinux files",
125 "[-p] <interface> <dev[:part]> <ext2|fat|any> [addr] [filename]\n"
126 " - load and parse syslinux menu file 'filename' from ext2, fat\n"
127 " or any filesystem on 'dev' on 'interface' to address 'addr'"