free(bflow);
}
+#if CONFIG_IS_ENABLED(BOOTSTD_FULL)
+int bootflow_read_all(struct bootflow *bflow)
+{
+ int ret;
+
+ if (bflow->state != BOOTFLOWST_READY)
+ return log_msg_ret("rd", -EPROTO);
+
+ ret = bootmeth_read_all(bflow->method, bflow);
+ if (ret)
+ return log_msg_ret("rd2", ret);
+
+ return 0;
+}
+#endif /* BOOTSTD_FULL */
+
int bootflow_boot(struct bootflow *bflow)
{
int ret;
return ops->set_bootflow(dev, bflow, buf, size);
}
+#if CONFIG_IS_ENABLED(BOOTSTD_FULL)
+int bootmeth_read_all(struct udevice *dev, struct bootflow *bflow)
+{
+ const struct bootmeth_ops *ops = bootmeth_get_ops(dev);
+
+ if (!ops->read_all)
+ return -ENOSYS;
+
+ return ops->read_all(dev, bflow);
+}
+#endif /* BOOTSTD_FULL */
+
int bootmeth_boot(struct udevice *dev, struct bootflow *bflow)
{
const struct bootmeth_ops *ops = bootmeth_get_ops(dev);
return -ENOSYS;
}
-static int cros_boot(struct udevice *dev, struct bootflow *bflow)
+#if CONFIG_IS_ENABLED(BOOSTD_FULL)
+static int cros_read_all(struct udevice *dev, struct bootflow *bflow)
{
int ret;
+ if (bflow->buf)
+ return log_msg_ret("ld", -EALREADY);
ret = cros_read_kernel(bflow);
if (ret)
return log_msg_ret("rd", ret);
+
+ return 0;
+}
+#endif /* BOOSTD_FULL */
+
+static int cros_boot(struct udevice *dev, struct bootflow *bflow)
+{
+ int ret;
+
+ if (!bflow->buf) {
+ ret = cros_read_kernel(bflow);
+ if (ret)
+ return log_msg_ret("rd", ret);
+ }
#ifdef CONFIG_X86
zboot_start(map_to_sysmem(bflow->buf), bflow->size, 0, 0,
map_to_sysmem(bflow->x86_setup),
.read_bootflow = cros_read_bootflow,
.read_file = cros_read_file,
.boot = cros_boot,
+#if CONFIG_IS_ENABLED(BOOSTD_FULL)
+ .read_all = cros_read_all,
+#endif /* BOOSTD_FULL */
};
static const struct udevice_id cros_bootmeth_ids[] = {
return 0;
}
+static int do_bootflow_read(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct bootstd_priv *std;
+ struct bootflow *bflow;
+ int ret;
+
+ ret = bootstd_get_priv(&std);
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ /*
+ * Require a current bootflow. Users can use 'bootflow scan -b' to
+ * automatically scan and boot, if needed.
+ */
+ if (!std->cur_bootflow) {
+ printf("No bootflow selected\n");
+ return CMD_RET_FAILURE;
+ }
+ bflow = std->cur_bootflow;
+ ret = bootflow_read_all(bflow);
+ if (ret) {
+ printf("Failed: err=%dE\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ return 0;
+}
+
static int do_bootflow_boot(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
"bootflow list [-e] - list scanned bootflows (-e errors)\n"
"bootflow select [<num>|<name>] - select a bootflow\n"
"bootflow info [-ds] - show info on current bootflow (-d dump bootflow)\n"
- "bootflow boot - boot current bootflow (or first available if none selected)\n"
+ "bootflow read - read all current-bootflow files\n"
+ "bootflow boot - boot current bootflow\n"
"bootflow menu [-t] - show a menu of available bootflows\n"
"bootflow cmdline [set|get|clear|delete|auto] <param> [<value>] - update cmdline";
#else
U_BOOT_SUBCMD_MKENT(list, 2, 1, do_bootflow_list),
U_BOOT_SUBCMD_MKENT(select, 2, 1, do_bootflow_select),
U_BOOT_SUBCMD_MKENT(info, 2, 1, do_bootflow_info),
+ U_BOOT_SUBCMD_MKENT(read, 1, 1, do_bootflow_read),
U_BOOT_SUBCMD_MKENT(boot, 1, 1, do_bootflow_boot),
U_BOOT_SUBCMD_MKENT(menu, 2, 1, do_bootflow_menu),
U_BOOT_SUBCMD_MKENT(cmdline, 4, 1, do_bootflow_cmdline),
bootflow list [-e]
bootflow select [<num|name>]
bootflow info [-ds]
+ bootflow read
bootflow boot
bootflow cmdline [set|get|clear|delete|auto] <param> [<value>]
The `-s` flag shows any x86 setup block, instead of the above.
+bootflow read
+~~~~~~~~~~~~~
+
+This reads any files related to the bootflow. Some bootflows with large files
+avoid doing this when the bootflow is scanned, since it uses a lot of memory
+and takes extra time. The files are then automatically read when `bootflow boot`
+is used.
+
+This command reads these files immediately. Typically this fills in the bootflow
+`buf` property, which can be used to examine the bootflow.
+
+Note that reading the files does not result in any extra parsing, nor loading of
+images in the files. This is purely used to read in the data ready for
+booting, or examination.
+
+
bootflow boot
~~~~~~~~~~~~~
-This boots the current bootflow.
+This boots the current bootflow, reading any required files first.
bootflow cmdline
Init size : 1383000
Handover offset : 0
+This shows reading a bootflow to examine the kernel::
+
+ => bootfl i 0
+ Name:
+ Device: emmc@1c,0.bootdev
+ Block dev: emmc@1c,0.blk
+ Method: cros
+ State: ready
+ Partition: 2
+ Subdir: (none)
+ Filename: <NULL>
+ Buffer: 0
+ Size: 63ee00 (6548992 bytes)
+ OS: ChromeOS
+ Cmdline: console= loglevel=7 init=/sbin/init cros_secure oops=panic panic=-1 root=PARTUUID=35c775e7-3735-d745-93e5-d9e0238f7ed0/PARTNROFF=1 rootwait rw dm_verity.error_behavior=3 dm_verity.max_bios=-1 dm_verity.dev_wait=0 dm="1 vroot none rw 1,0 3788800 verity payload=ROOT_DEV hashtree=HASH_DEV hashstart=3788800 alg=sha1 root_hexdigest=55052b629d3ac889f25a9583ea12cdcd3ea15ff8 salt=a2d4d9e574069f4fed5e3961b99054b7a4905414b60a25d89974a7334021165c" noinitrd vt.global_cursor_default=0 kern_guid=35c775e7-3735-d745-93e5-d9e0238f7ed0 add_efi_memmap boot=local noresume noswap i915.modeset=1 tpm_tis.force=1 tpm_tis.interrupts=0 nmi_watchdog=panic,lapic disablevmx=off
+ X86 setup: 77b56010
+ Logo: (none)
+ FDT: <NULL>
+ Error: 0
+
+Note that `Buffer` is 0 so it has not be read yet. Using `bootflow read`::
+
+ => bootfl read
+ => bootfl info
+ Name:
+ Device: emmc@1c,0.bootdev
+ Block dev: emmc@1c,0.blk
+ Method: cros
+ State: ready
+ Partition: 2
+ Subdir: (none)
+ Filename: <NULL>
+ Buffer: 77b7e400
+ Size: 63ee00 (6548992 bytes)
+ OS: ChromeOS
+ Cmdline: console= loglevel=7 init=/sbin/init cros_secure oops=panic panic=-1 root=PARTUUID=35c775e7-3735-d745-93e5-d9e0238f7ed0/PARTNROFF=1 rootwait rw dm_verity.error_behavior=3 dm_verity.max_bios=-1 dm_verity.dev_wait=0 dm="1 vroot none rw 1,0 3788800 verity payload=ROOT_DEV hashtree=HASH_DEV hashstart=3788800 alg=sha1 root_hexdigest=55052b629d3ac889f25a9583ea12cdcd3ea15ff8 salt=a2d4d9e574069f4fed5e3961b99054b7a4905414b60a25d89974a7334021165c" noinitrd vt.global_cursor_default=0 kern_guid=35c775e7-3735-d745-93e5-d9e0238f7ed0 add_efi_memmap boot=local noresume noswap i915.modeset=1 tpm_tis.force=1 tpm_tis.interrupts=0 nmi_watchdog=panic,lapic disablevmx=off
+ X86 setup: 781b4400
+ Logo: (none)
+ FDT: <NULL>
+ Error: 0
+
+Now the buffer can be accessed::
+
+ => md 77b7e400
+ 77b7e400: 1186f6fc 40000002 b8fa0c75 00000018 .......@u.......
+ 77b7e410: c08ed88e a68dd08e 000001e8 000000e8 ................
+ 77b7e420: ed815d00 00000021 62c280b8 89e80100 .]..!......b....
+ 77b7e430: 22f7e8c4 c0850061 22ec850f eb890061 ..."a......"a...
+ 77b7e440: 0230868b 01480000 21d0f7c3 00fb81c3 ..0...H....!....
+ 77b7e450: 7d010000 0000bb05 c3810100 00d4f000 ...}............
+ 77b7e460: 8130858d 85890061 00618132 3095010f ..0.a...2.a....0
+ 77b7e470: 0f006181 c883e020 e0220f20 e000bb8d .a.. ... .".....
+ 77b7e480: c0310062 001800b9 8dabf300 62e000bb b.1............b
+ 77b7e490: 07878d00 89000010 00bb8d07 8d0062f0 .............b..
+ 77b7e4a0: 00100787 0004b900 07890000 00100005 ................
+ 77b7e4b0: 08c78300 8df37549 630000bb 0183b800 ....Iu.....c....
+ 77b7e4c0: 00b90000 89000008 00000507 c7830020 ............ ...
+ 77b7e4d0: f3754908 e000838d 220f0062 0080b9d8 .Iu.....b.."....
+ 77b7e4e0: 320fc000 08e8ba0f c031300f b8d0000f ...2.....01.....
+ 77b7e4f0: 00000020 6ad8000f 00858d10 50000002 ......j.......P
+
Return value
------------
*/
int bootflow_boot(struct bootflow *bflow);
+/**
+ * bootflow_read_all() - Read all bootflow files
+ *
+ * Some bootmeths delay reading of large files until booting is requested. This
+ * causes those files to be read.
+ *
+ * @bflow: Bootflow to read
+ * Return: result of trying to read
+ */
+int bootflow_read_all(struct bootflow *bflow);
+
/**
* bootflow_run_boot() - Try to boot a bootflow
*
*/
int (*read_file)(struct udevice *dev, struct bootflow *bflow,
const char *file_path, ulong addr, ulong *sizep);
-
+#if CONFIG_IS_ENABLED(BOOTSTD_FULL)
+ /**
+ * readall() - read all files for a bootflow
+ *
+ * @dev: Bootmethod device to boot
+ * @bflow: Bootflow to read
+ * Return: 0 if OK, -EIO on I/O error, other -ve on other error
+ */
+ int (*read_all)(struct udevice *dev, struct bootflow *bflow);
+#endif /* BOOTSTD_FULL */
/**
* boot() - boot a bootflow
*
int bootmeth_read_file(struct udevice *dev, struct bootflow *bflow,
const char *file_path, ulong addr, ulong *sizep);
+/**
+ * bootmeth_read_all() - read all bootflow files
+ *
+ * Some bootmeths delay reading of large files until booting is requested. This
+ * causes those files to be read.
+ *
+ * @dev: Bootmethod device to use
+ * @bflow: Bootflow to read
+ * Return: does not return on success, since it should boot the
+ * Operating Systemn. Returns -EFAULT if that fails, other -ve on
+ * other error
+ */
+int bootmeth_read_all(struct udevice *dev, struct bootflow *bflow);
+
/**
* bootmeth_boot() - boot a bootflow
*
projects / u-boot.git / commitdiff