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The test verifies that partitions can be correctly identified by their type GUID, specifically testing the ChromeOS kernel partition lookup. Signed-off-by: Balaji Selvanathan --- Changes in v3: - Add unit test for the partition type GUID lookup functionality --- test/dm/part.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/test/dm/part.c b/test/dm/part.c index caae23bd4aa..41fb6efe5e4 100644 --- a/test/dm/part.c +++ b/test/dm/part.c @@ -8,9 +8,13 @@ #include #include #include +#include +#include #include #include +DECLARE_GLOBAL_DATA_PTR; + static int do_test(struct unit_test_state *uts, int expected, const char *part_str, bool whole) { @@ -195,3 +199,47 @@ static int dm_test_part_get_info_by_type(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_part_get_info_by_type, UTF_SCAN_PDATA | UTF_SCAN_FDT); + +static int dm_test_part_get_info_by_type_guid(struct unit_test_state *uts) +{ + struct udevice *dev, *blk_dev; + struct blk_desc *desc; + struct disk_partition info; + ofnode root, node; + int partnum; + + if (!IS_ENABLED(CONFIG_PARTITION_TYPE_GUID)) + return -EOPNOTSUPP; + + /* Bind the mmc5 node (ChromeOS image with type GUIDs) */ + root = oftree_root(oftree_default()); + node = ofnode_find_subnode(root, "mmc5"); + ut_assert(ofnode_valid(node)); + ut_assertok(lists_bind_fdt(gd->dm_root, node, &dev, NULL, false)); + + /* Get the MMC device (probes it), then walk MMC -> BLK parent link */ + ut_assertok(uclass_get_device_by_seq(UCLASS_MMC, 5, &dev)); + ut_assertok(blk_get_from_parent(dev, &blk_dev)); + desc = dev_get_uclass_plat(blk_dev); + ut_assert(desc); + + /* + * Test: look up the first ChromeOS kernel partition by type GUID. + * In the ChromeOS image KERN_A is the first partition carrying the + * ChromeOS kernel type GUID (fe3a2a5d-...). + */ + partnum = part_get_info_by_type_guid(desc, + "FE3A2A5D-4F32-41A7-B725-ACCC3285A309", + &info); + ut_assert(partnum > 0); + + /* Test: non-existent GUID must return -ENOENT */ + ut_asserteq(-ENOENT, + part_get_info_by_type_guid(desc, + "00000000-0000-0000-0000-000000000000", + &info)); + + return 0; +} + +DM_TEST(dm_test_part_get_info_by_type_guid, UTF_SCAN_PDATA | UTF_SCAN_FDT); -- 2.34.1