bootstd: Add a bootflow command
Add a 'bootflow' command to handle listing and selection of bootflow. Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
Tom Rini
parent
5d053cca38
commit
2d653f686b
18
cmd/Kconfig
18
cmd/Kconfig
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@ -221,6 +221,24 @@ config CMD_BOOTDEV
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This command is not necessary for bootstd to work.
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config CMD_BOOTFLOW
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bool "bootflow"
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depends on BOOTSTD
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default y
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help
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Support scanning for bootflows available with the bootdevs. The
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bootflows can optionally be booted.
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config CMD_BOOTFLOW_FULL
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bool "bootflow - extract subcommands"
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depends on BOOTSTD_FULL
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default y if BOOTSTD_FULL
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help
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Add the ability to list the available bootflows, select one and obtain
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information about it.
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This command is not necessary for bootstd to work.
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config BOOTM_EFI
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bool "Support booting UEFI FIT images"
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depends on CMD_BOOTEFI && CMD_BOOTM && FIT
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@ -20,6 +20,7 @@ obj-$(CONFIG_CMD_ADC) += adc.o
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obj-$(CONFIG_CMD_ARMFLASH) += armflash.o
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obj-$(CONFIG_HAVE_BLOCK_DEVICE) += blk_common.o
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obj-$(CONFIG_CMD_BOOTDEV) += bootdev.o
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obj-$(CONFIG_CMD_BOOTFLOW) += bootflow.o
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obj-$(CONFIG_CMD_SOURCE) += source.o
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obj-$(CONFIG_CMD_BCB) += bcb.o
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obj-$(CONFIG_CMD_BDI) += bdinfo.o
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@ -0,0 +1,404 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* 'bootflow' command
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*
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* Copyright 2021 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <bootdev.h>
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#include <bootflow.h>
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#include <bootstd.h>
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#include <command.h>
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#include <console.h>
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#include <dm.h>
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#include <mapmem.h>
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/**
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* report_bootflow_err() - Report where a bootflow failed
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*
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* When a bootflow does not make it to the 'loaded' state, something went wrong.
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* Print a helpful message if there is an error
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*
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* @bflow: Bootflow to process
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* @err: Error code (0 if none)
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*/
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static void report_bootflow_err(struct bootflow *bflow, int err)
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{
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if (!err)
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return;
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/* Indent out to 'Method' */
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printf(" ** ");
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switch (bflow->state) {
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case BOOTFLOWST_BASE:
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printf("No media/partition found");
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break;
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case BOOTFLOWST_MEDIA:
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printf("No partition found");
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break;
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case BOOTFLOWST_PART:
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printf("No filesystem found");
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break;
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case BOOTFLOWST_FS:
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printf("File not found");
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break;
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case BOOTFLOWST_FILE:
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printf("File cannot be loaded");
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break;
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case BOOTFLOWST_READY:
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printf("Ready");
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break;
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case BOOTFLOWST_COUNT:
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break;
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}
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printf(", err=%d\n", err);
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}
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/**
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* show_bootflow() - Show the status of a bootflow
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*
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* @seq: Bootflow index
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* @bflow: Bootflow to show
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* @errors: True to show the error received, if any
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*/
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static void show_bootflow(int index, struct bootflow *bflow, bool errors)
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{
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printf("%3x %-11s %-6s %-9.9s %4x %-25.25s %s\n", index,
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bflow->method->name, bootflow_state_get_name(bflow->state),
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dev_get_uclass_name(dev_get_parent(bflow->dev)), bflow->part,
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bflow->name, bflow->fname);
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if (errors)
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report_bootflow_err(bflow, bflow->err);
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}
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static void show_header(void)
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{
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printf("Seq Method State Uclass Part Name Filename\n");
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printf("--- ----------- ------ -------- ---- ------------------------ ----------------\n");
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}
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static void show_footer(int count, int num_valid)
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{
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printf("--- ----------- ------ -------- ---- ------------------------ ----------------\n");
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printf("(%d bootflow%s, %d valid)\n", count, count != 1 ? "s" : "",
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num_valid);
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}
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static int do_bootflow_scan(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct bootstd_priv *std;
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struct bootflow_iter iter;
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struct udevice *dev;
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struct bootflow bflow;
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bool all = false, boot = false, errors = false, list = false;
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int num_valid = 0;
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bool has_args;
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int ret, i;
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int flags;
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ret = bootstd_get_priv(&std);
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if (ret)
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return CMD_RET_FAILURE;
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dev = std->cur_bootdev;
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has_args = argc > 1 && *argv[1] == '-';
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if (IS_ENABLED(CONFIG_CMD_BOOTFLOW_FULL)) {
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if (has_args) {
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all = strchr(argv[1], 'a');
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boot = strchr(argv[1], 'b');
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errors = strchr(argv[1], 'e');
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list = strchr(argv[1], 'l');
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argc--;
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argv++;
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}
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if (argc > 1) {
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const char *label = argv[1];
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if (bootdev_find_by_any(label, &dev))
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return CMD_RET_FAILURE;
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}
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} else {
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if (has_args) {
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printf("Flags not supported: enable CONFIG_BOOTFLOW_FULL\n");
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return CMD_RET_USAGE;
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}
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boot = true;
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}
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std->cur_bootflow = NULL;
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flags = 0;
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if (list)
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flags |= BOOTFLOWF_SHOW;
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if (all)
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flags |= BOOTFLOWF_ALL;
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/*
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* If we have a device, just scan for bootflows attached to that device
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*/
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if (IS_ENABLED(CONFIG_CMD_BOOTFLOW_FULL) && dev) {
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if (list) {
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printf("Scanning for bootflows in bootdev '%s'\n",
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dev->name);
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show_header();
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}
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bootdev_clear_bootflows(dev);
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for (i = 0,
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ret = bootflow_scan_bootdev(dev, &iter, flags, &bflow);
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i < 1000 && ret != -ENODEV;
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i++, ret = bootflow_scan_next(&iter, &bflow)) {
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bflow.err = ret;
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if (!ret)
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num_valid++;
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ret = bootdev_add_bootflow(&bflow);
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if (ret) {
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printf("Out of memory\n");
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return CMD_RET_FAILURE;
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}
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if (list)
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show_bootflow(i, &bflow, errors);
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if (boot && !bflow.err)
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bootflow_run_boot(&iter, &bflow);
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}
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} else {
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if (list) {
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printf("Scanning for bootflows in all bootdevs\n");
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show_header();
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}
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bootstd_clear_glob();
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for (i = 0,
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ret = bootflow_scan_first(&iter, flags, &bflow);
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i < 1000 && ret != -ENODEV;
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i++, ret = bootflow_scan_next(&iter, &bflow)) {
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bflow.err = ret;
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if (!ret)
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num_valid++;
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ret = bootdev_add_bootflow(&bflow);
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if (ret) {
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printf("Out of memory\n");
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return CMD_RET_FAILURE;
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}
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if (list)
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show_bootflow(i, &bflow, errors);
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if (boot && !bflow.err)
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bootflow_run_boot(&iter, &bflow);
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}
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}
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bootflow_iter_uninit(&iter);
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if (list)
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show_footer(i, num_valid);
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return 0;
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}
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#ifdef CONFIG_CMD_BOOTFLOW_FULL
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static int do_bootflow_list(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct bootstd_priv *std;
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struct udevice *dev;
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struct bootflow *bflow;
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int num_valid = 0;
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bool errors = false;
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int ret, i;
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if (argc > 1 && *argv[1] == '-')
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errors = strchr(argv[1], 'e');
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ret = bootstd_get_priv(&std);
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if (ret)
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return CMD_RET_FAILURE;
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dev = std->cur_bootdev;
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/* If we have a device, just list bootflows attached to that device */
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if (dev) {
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printf("Showing bootflows for bootdev '%s'\n", dev->name);
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show_header();
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for (ret = bootdev_first_bootflow(dev, &bflow), i = 0;
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!ret;
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ret = bootdev_next_bootflow(&bflow), i++) {
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num_valid += bflow->state == BOOTFLOWST_READY;
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show_bootflow(i, bflow, errors);
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}
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} else {
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printf("Showing all bootflows\n");
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show_header();
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for (ret = bootflow_first_glob(&bflow), i = 0;
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!ret;
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ret = bootflow_next_glob(&bflow), i++) {
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num_valid += bflow->state == BOOTFLOWST_READY;
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show_bootflow(i, bflow, errors);
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}
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}
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show_footer(i, num_valid);
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return 0;
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}
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static int do_bootflow_select(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct bootstd_priv *std;
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struct bootflow *bflow, *found;
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struct udevice *dev;
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const char *name;
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char *endp;
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int seq, i;
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int ret;
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ret = bootstd_get_priv(&std);
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if (ret)
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return CMD_RET_FAILURE;
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;
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if (argc < 2) {
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std->cur_bootflow = NULL;
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return 0;
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}
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dev = std->cur_bootdev;
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name = argv[1];
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seq = simple_strtol(name, &endp, 16);
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found = NULL;
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/*
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* If we have a bootdev device, only allow selection of bootflows
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* attached to that device
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*/
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if (dev) {
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for (ret = bootdev_first_bootflow(dev, &bflow), i = 0;
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!ret;
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ret = bootdev_next_bootflow(&bflow), i++) {
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if (*endp ? !strcmp(bflow->name, name) : i == seq) {
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found = bflow;
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break;
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}
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}
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} else {
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for (ret = bootflow_first_glob(&bflow), i = 0;
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!ret;
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ret = bootflow_next_glob(&bflow), i++) {
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if (*endp ? !strcmp(bflow->name, name) : i == seq) {
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found = bflow;
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break;
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}
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}
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}
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if (!found) {
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printf("Cannot find bootflow '%s' ", name);
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if (dev)
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printf("in bootdev '%s' ", dev->name);
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printf("(err=%d)\n", ret);
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return CMD_RET_FAILURE;
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}
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std->cur_bootflow = found;
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return 0;
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}
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static int do_bootflow_info(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct bootstd_priv *std;
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struct bootflow *bflow;
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bool dump = false;
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int ret;
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if (argc > 1 && *argv[1] == '-')
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dump = strchr(argv[1], 'd');
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ret = bootstd_get_priv(&std);
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if (ret)
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return CMD_RET_FAILURE;
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if (!std->cur_bootflow) {
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printf("No bootflow selected\n");
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return CMD_RET_FAILURE;
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}
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bflow = std->cur_bootflow;
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printf("Name: %s\n", bflow->name);
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printf("Device: %s\n", bflow->dev->name);
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printf("Block dev: %s\n", bflow->blk ? bflow->blk->name : "(none)");
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printf("Method: %s\n", bflow->method->name);
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printf("State: %s\n", bootflow_state_get_name(bflow->state));
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printf("Partition: %d\n", bflow->part);
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printf("Subdir: %s\n", bflow->subdir ? bflow->subdir : "(none)");
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printf("Filename: %s\n", bflow->fname);
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printf("Buffer: %lx\n", (ulong)map_to_sysmem(bflow->buf));
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printf("Size: %x (%d bytes)\n", bflow->size, bflow->size);
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printf("Error: %d\n", bflow->err);
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if (dump && bflow->buf) {
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/* Set some sort of maximum on the size */
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int size = min(bflow->size, 10 << 10);
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int i;
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printf("Contents:\n\n");
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for (i = 0; i < size; i++) {
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putc(bflow->buf[i]);
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if (!(i % 128) && ctrlc()) {
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printf("...interrupted\n");
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break;
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}
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}
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}
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return 0;
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}
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static int do_bootflow_boot(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct bootstd_priv *std;
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struct bootflow *bflow;
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int ret;
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ret = bootstd_get_priv(&std);
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if (ret)
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return CMD_RET_FAILURE;
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/*
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* Require a current bootflow. Users can use 'bootflow scan -b' to
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* automatically scan and boot, if needed.
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*/
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if (!std->cur_bootflow) {
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printf("No bootflow selected\n");
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return CMD_RET_FAILURE;
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}
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bflow = std->cur_bootflow;
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ret = bootflow_run_boot(NULL, bflow);
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if (ret)
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return CMD_RET_FAILURE;
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return 0;
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}
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#endif /* CONFIG_CMD_BOOTFLOW_FULL */
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#ifdef CONFIG_SYS_LONGHELP
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static char bootflow_help_text[] =
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#ifdef CONFIG_CMD_BOOTFLOW_FULL
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"scan [-abel] [bdev] - scan for valid bootflows (-l list, -a all, -e errors, -b boot)\n"
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"bootflow list [-e] - list scanned bootflows (-e errors)\n"
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"bootflow select [<num>|<name>] - select a bootflow\n"
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"bootflow info [-d] - show info on current bootflow (-d dump bootflow)\n"
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"bootflow boot - boot current bootflow (or first available if none selected)";
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#else
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"scan - boot first available bootflow\n";
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#endif
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#endif /* CONFIG_SYS_LONGHELP */
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U_BOOT_CMD_WITH_SUBCMDS(bootflow, "Boot flows", bootflow_help_text,
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U_BOOT_SUBCMD_MKENT(scan, 3, 1, do_bootflow_scan),
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#ifdef CONFIG_CMD_BOOTFLOW_FULL
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U_BOOT_SUBCMD_MKENT(list, 2, 1, do_bootflow_list),
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U_BOOT_SUBCMD_MKENT(select, 2, 1, do_bootflow_select),
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U_BOOT_SUBCMD_MKENT(info, 2, 1, do_bootflow_info),
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U_BOOT_SUBCMD_MKENT(boot, 1, 1, do_bootflow_boot)
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#endif
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);
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