test/boot/bootdev.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Test for bootdev functions. All start with 'bootdev'
 *
 * Copyright 2021 Google LLC
 * Written by Simon Glass <sjg@chromium.org>
 */

#include <common.h>
#include <bootstd.h>
#include <dm.h>
#include <bootdev.h>
#include <bootflow.h>
#include <mapmem.h>
#include <os.h>
#include <test/suites.h>
#include <test/ut.h>
#include "bootstd_common.h"

/* Allow reseting the USB-started flag */
extern char usb_started;

/* Check 'bootdev list' command */
static int bootdev_test_cmd_list(struct unit_test_state *uts)
{
	int probed;

	console_record_reset_enable();
	for (probed = 0; probed < 2; probed++) {
		int probe_ch = probed ? '+' : ' ';

		ut_assertok(run_command(probed ? "bootdev list -p" :
			"bootdev list", 0));
		ut_assert_nextline("Seq  Probed  Status  Uclass    Name");
		ut_assert_nextlinen("---");
		ut_assert_nextline("%3x   [ %c ]  %6s  %-8s  %s", 0, probe_ch, "OK",
				   "mmc", "mmc2.bootdev");
		ut_assert_nextline("%3x   [ %c ]  %6s  %-8s  %s", 1, probe_ch, "OK",
				   "mmc", "mmc1.bootdev");
		ut_assert_nextline("%3x   [ %c ]  %6s  %-8s  %s", 2, probe_ch, "OK",
				   "mmc", "mmc0.bootdev");
		ut_assert_nextlinen("---");
		ut_assert_nextline("(3 bootdevs)");
		ut_assert_console_end();
	}

	return 0;
}
BOOTSTD_TEST(bootdev_test_cmd_list, UT_TESTF_DM | UT_TESTF_SCAN_FDT);

/* Check 'bootdev select' and 'info' commands */
static int bootdev_test_cmd_select(struct unit_test_state *uts)
{
	struct bootstd_priv *std;

	/* get access to the CLI's cur_bootdev */
	ut_assertok(bootstd_get_priv(&std));

	console_record_reset_enable();
	ut_asserteq(1, run_command("bootdev info", 0));
	ut_assert_nextlinen("Please use");
	ut_assert_console_end();

	/* select by sequence */
	ut_assertok(run_command("bootdev select 0", 0));
	ut_assert_console_end();

	ut_assertok(run_command("bootdev info", 0));
	ut_assert_nextline("Name:      mmc2.bootdev");
	ut_assert_nextline("Sequence:  0");
	ut_assert_nextline("Status:    Probed");
	ut_assert_nextline("Uclass:    mmc");
	ut_assert_nextline("Bootflows: 0 (0 valid)");
	ut_assert_console_end();

	/* select by bootdev name */
	ut_assertok(run_command("bootdev select mmc1.bootdev", 0));
	ut_assert_console_end();
	ut_assertnonnull(std->cur_bootdev);
	ut_asserteq_str("mmc1.bootdev", std->cur_bootdev->name);

	/* select by bootdev label*/
	ut_assertok(run_command("bootdev select mmc1", 0));
	ut_assert_console_end();
	ut_assertnonnull(std->cur_bootdev);
	ut_asserteq_str("mmc1.bootdev", std->cur_bootdev->name);

	/* deselect */
	ut_assertok(run_command("bootdev select", 0));
	ut_assert_console_end();
	ut_assertnull(std->cur_bootdev);

	ut_asserteq(1, run_command("bootdev info", 0));
	ut_assert_nextlinen("Please use");
	ut_assert_console_end();

	return 0;
}
BOOTSTD_TEST(bootdev_test_cmd_select, UT_TESTF_DM | UT_TESTF_SCAN_FDT);

/* Check bootdev labels */
static int bootdev_test_labels(struct unit_test_state *uts)
{
	struct udevice *dev, *media;

	ut_assertok(bootdev_find_by_label("mmc2", &dev));
	ut_asserteq(UCLASS_BOOTDEV, device_get_uclass_id(dev));
	media = dev_get_parent(dev);
	ut_asserteq(UCLASS_MMC, device_get_uclass_id(media));
	ut_asserteq_str("mmc2", media->name);

	/* Check invalid uclass */
	ut_asserteq(-EINVAL, bootdev_find_by_label("fred0", &dev));

	/* Check unknown sequence number */
	ut_asserteq(-ENOENT, bootdev_find_by_label("mmc6", &dev));

	return 0;
}
BOOTSTD_TEST(bootdev_test_labels, UT_TESTF_DM | UT_TESTF_SCAN_FDT);

/* Check bootdev ordering with the bootdev-order property */
static int bootdev_test_order(struct unit_test_state *uts)
{
	struct bootflow_iter iter;
	struct bootflow bflow;

	/*
	 * First try the order set by the bootdev-order property
	 * Like all sandbox unit tests this relies on the devicetree setting up
	 * the required devices:
	 *
	 * mmc0 - nothing connected
	 * mmc1 - connected to mmc1.img file
	 * mmc2 - nothing connected
	 */
	ut_assertok(env_set("boot_targets", NULL));
	ut_assertok(bootflow_scan_first(&iter, 0, &bflow));
	ut_asserteq(2, iter.num_devs);
	ut_asserteq_str("mmc2.bootdev", iter.dev_order[0]->name);
	ut_asserteq_str("mmc1.bootdev", iter.dev_order[1]->name);
	bootflow_iter_uninit(&iter);

	/* Use the environment variable to override it */
	ut_assertok(env_set("boot_targets", "mmc1 mmc2"));
	ut_assertok(bootflow_scan_first(&iter, 0, &bflow));
	ut_asserteq(2, iter.num_devs);
	ut_asserteq_str("mmc1.bootdev", iter.dev_order[0]->name);
	ut_asserteq_str("mmc2.bootdev", iter.dev_order[1]->name);
	bootflow_iter_uninit(&iter);

	/*
	 * Now drop both orderings, to check the default (prioriy/sequence)
	 * ordering
	 */
	ut_assertok(env_set("boot_targets", NULL));
	ut_assertok(bootstd_test_drop_bootdev_order(uts));

	ut_assertok(bootflow_scan_first(&iter, 0, &bflow));
	ut_asserteq(3, iter.num_devs);
	ut_asserteq_str("mmc2.bootdev", iter.dev_order[0]->name);
	ut_asserteq_str("mmc1.bootdev", iter.dev_order[1]->name);
	ut_asserteq_str("mmc0.bootdev", iter.dev_order[2]->name);

	/*
	 * Check that adding aliases for the bootdevs works. We just fake it by
	 * setting the sequence numbers directly.
	 */
	iter.dev_order[0]->seq_ = 0;
	iter.dev_order[1]->seq_ = 3;
	iter.dev_order[2]->seq_ = 2;
	bootflow_iter_uninit(&iter);

	ut_assertok(bootflow_scan_first(&iter, 0, &bflow));
	ut_asserteq(3, iter.num_devs);
	ut_asserteq_str("mmc2.bootdev", iter.dev_order[0]->name);
	ut_asserteq_str("mmc0.bootdev", iter.dev_order[1]->name);
	ut_asserteq_str("mmc1.bootdev", iter.dev_order[2]->name);
	bootflow_iter_uninit(&iter);

	return 0;
}
BOOTSTD_TEST(bootdev_test_order, UT_TESTF_DM | UT_TESTF_SCAN_FDT);

/* Check bootdev ordering with the uclass priority */
static int bootdev_test_prio(struct unit_test_state *uts)
{
	struct bootdev_uc_plat *ucp;
	struct bootflow_iter iter;
	struct bootflow bflow;
	struct udevice *blk;

	test_set_skip_delays(true);

	/* Start up USB which gives us three additional bootdevs */
	usb_started = false;
	ut_assertok(run_command("usb start", 0));

	ut_assertok(bootstd_test_drop_bootdev_order(uts));

	/* 3 MMC and 3 USB bootdevs: MMC should come before USB */
	console_record_reset_enable();
	ut_assertok(bootflow_scan_first(&iter, 0, &bflow));
	ut_asserteq(6, iter.num_devs);
	ut_asserteq_str("mmc2.bootdev", iter.dev_order[0]->name);
	ut_asserteq_str("usb_mass_storage.lun0.bootdev",
			iter.dev_order[3]->name);

	ut_assertok(bootdev_get_sibling_blk(iter.dev_order[3], &blk));
	ut_asserteq_str("usb_mass_storage.lun0", blk->name);

	/* adjust the priority of the first USB bootdev to the highest */
	ucp = dev_get_uclass_plat(iter.dev_order[3]);
	ucp->prio = 1;

	bootflow_iter_uninit(&iter);
	ut_assertok(bootflow_scan_first(&iter, 0, &bflow));
	ut_asserteq(6, iter.num_devs);
	ut_asserteq_str("usb_mass_storage.lun0.bootdev",
			iter.dev_order[0]->name);
	ut_asserteq_str("mmc2.bootdev", iter.dev_order[1]->name);

	return 0;
}
BOOTSTD_TEST(bootdev_test_prio, UT_TESTF_DM | UT_TESTF_SCAN_FDT);

/* Check listing hunters */
static int bootdev_test_hunter(struct unit_test_state *uts)
{
	struct bootstd_priv *std;

	test_set_skip_delays(true);

	/* get access to the used hunters */
	ut_assertok(bootstd_get_priv(&std));

	console_record_reset_enable();
	bootdev_list_hunters(std);
	ut_assert_nextline("Prio  Used  Uclass           Hunter");
	ut_assert_nextlinen("----");
	ut_assert_nextline("  50        ethernet         eth_bootdev");
	ut_assert_nextline("  40        ide              ide_bootdev");
	ut_assert_nextline("  10        mmc              mmc_bootdev");
	ut_assert_nextline("  30        nvme             nvme_bootdev");
	ut_assert_nextline("  30        scsi             scsi_bootdev");
	ut_assert_nextline("  40        usb              usb_bootdev");
	ut_assert_nextline("(total hunters: 6)");
	ut_assert_console_end();

	ut_assertok(bootdev_hunt("usb1", false));
	ut_assert_nextline(
		"Bus usb@1: scanning bus usb@1 for devices... 5 USB Device(s) found");
	ut_assert_console_end();

	/* USB is fifth in the list, so bit 5 */
	ut_asserteq(BIT(5), std->hunters_used);

	return 0;
}
BOOTSTD_TEST(bootdev_test_hunter, UT_TESTF_DM | UT_TESTF_SCAN_FDT);

/* Check 'bootdev hunt' command */
static int bootdev_test_cmd_hunt(struct unit_test_state *uts)
{
	struct bootstd_priv *std;

	test_set_skip_delays(true);

	/* get access to the used hunters */
	ut_assertok(bootstd_get_priv(&std));

	console_record_reset_enable();
	ut_assertok(run_command("bootdev hunt -l", 0));
	ut_assert_nextline("Prio  Used  Uclass           Hunter");
	ut_assert_nextlinen("----");
	ut_assert_skip_to_line("(total hunters: 6)");
	ut_assert_console_end();

	/* Scan all hunters */
	sandbox_set_eth_enable(false);

	ut_assertok(run_command("bootdev hunt", 0));
	ut_assert_nextline("Hunting with: ethernet");
	ut_assert_nextline("Hunting with: ide");
	ut_assert_nextline("Bus 0: not available  ");
	ut_assert_nextline("Hunting with: mmc");
	ut_assert_nextline("Hunting with: nvme");
	ut_assert_nextline("Hunting with: scsi");
	ut_assert_nextline("scanning bus for devices...");
	ut_assert_skip_to_line("Hunting with: usb");
	ut_assert_nextline(
		"Bus usb@1: scanning bus usb@1 for devices... 5 USB Device(s) found");
	ut_assert_console_end();

	/* List available hunters */
	ut_assertok(run_command("bootdev hunt -l", 0));
	ut_assert_nextlinen("Prio");
	ut_assert_nextlinen("----");
	ut_assert_nextline("  50     *  ethernet         eth_bootdev");
	ut_assert_nextline("  40     *  ide              ide_bootdev");
	ut_assert_nextline("  10     *  mmc              mmc_bootdev");
	ut_assert_nextline("  30     *  nvme             nvme_bootdev");
	ut_assert_nextline("  30     *  scsi             scsi_bootdev");
	ut_assert_nextline("  40     *  usb              usb_bootdev");

	ut_assert_nextline("(total hunters: 6)");
	ut_assert_console_end();

	ut_asserteq(GENMASK(5, 0), std->hunters_used);

	return 0;
}
BOOTSTD_TEST(bootdev_test_cmd_hunt, UT_TESTF_DM | UT_TESTF_SCAN_FDT |
	     UT_TESTF_ETH_BOOTDEV);

/* Check that only bootable partitions are processed */
static int bootdev_test_bootable(struct unit_test_state *uts)
{
	struct bootflow_iter iter;
	struct bootflow bflow;
	struct udevice *blk;

	memset(&iter, '\0', sizeof(iter));
	memset(&bflow, '\0', sizeof(bflow));
	iter.part = 0;
	ut_assertok(uclass_get_device_by_name(UCLASS_BLK, "mmc1.blk", &blk));
	iter.dev = blk;
	ut_assertok(device_find_next_child(&iter.dev));
	uclass_first_device(UCLASS_BOOTMETH, &bflow.method);

	/*
	 * initially we don't have any knowledge of which partitions are
	 * bootable, but mmc1 has two partitions, with the first one being
	 * bootable
	 */
	iter.part = 2;
	ut_asserteq(-EINVAL, bootdev_find_in_blk(iter.dev, blk, &iter, &bflow));
	ut_asserteq(0, iter.first_bootable);

	/* scan with part == 0 to get the partition info */
	iter.part = 0;
	ut_asserteq(-ENOENT, bootdev_find_in_blk(iter.dev, blk, &iter, &bflow));
	ut_asserteq(1, iter.first_bootable);

	/* now it will refuse to use non-bootable partitions */
	iter.part = 2;
	ut_asserteq(-EINVAL, bootdev_find_in_blk(iter.dev, blk, &iter, &bflow));

	return 0;
}
BOOTSTD_TEST(bootdev_test_bootable, UT_TESTF_DM | UT_TESTF_SCAN_FDT);