From: Simon Glass <sjg@chromium.org> Add some documentation and a test for this new command. Signed-off-by: Simon Glass <sjg@chromium.org> --- doc/usage/cmd/part_find.rst | 119 ++++++++++++++++++++++++++++++++++++ doc/usage/index.rst | 1 + test/cmd/Makefile | 1 + test/cmd/part_find.c | 42 +++++++++++++ 4 files changed, 163 insertions(+) create mode 100644 doc/usage/cmd/part_find.rst create mode 100644 test/cmd/part_find.c diff --git a/doc/usage/cmd/part_find.rst b/doc/usage/cmd/part_find.rst new file mode 100644 index 00000000000..fd5bd6578d5 --- /dev/null +++ b/doc/usage/cmd/part_find.rst @@ -0,0 +1,119 @@ +.. SPDX-License-Identifier: GPL-2.0+: + +.. index:: + single: part_find (command) + +part_find command +================= + +Synopsis +-------- + +:: + + part_find <uuid> + part_find self + +Description +----------- + +The `part_find` command is used to find a partition with a given type GUID. When +it finds one, it sets the target_part environment variable to the corresponding +``interface dev:part`` string. + +uuid + Universally Unique Identifier (UUID) to search, expressed as a string + +self + This is only permitted in the EFI app. It indicates that the required + partition is the one from which the app was started. + +Example +------- + +This shows searching for an EFI system partition and looking at the files on +that partition:: + + => host bind 1 mmc5.img + => part list host 0 + + Partition Map for host device 0 -- Partition Type: EFI + + Part Start LBA End LBA Name + Attributes + Type GUID + Partition GUID + 1 0x0000202f 0x0000282e "" + attrs: 0x0000000000000000 + type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 + (data) + guid: 6b1e51e3-427c-9f45-a947-e467b7216356 + 2 0x0000002d 0x0000082c "" + attrs: 0x0000000000000000 + type: fe3a2a5d-4f32-41a7-b725-accc3285a309 + (cros-kern) + guid: dece619f-4876-e140-a6c9-8c208a0c9099 + 3 0x0000202e 0x0000202e "" + attrs: 0x0000000000000000 + type: 3cb8e202-3b7e-47dd-8a3c-7ff2a13cfcec + (cros-root) + guid: 078cee87-a195-ae4c-a974-8ba3a3d783b3 + 4 0x0000082d 0x0000102c "" + attrs: 0x0000000000000000 + type: fe3a2a5d-4f32-41a7-b725-accc3285a309 + (cros-kern) + guid: 08d2f20f-d941-fc43-96f6-948931289d71 + 5 0x0000202d 0x0000202d "" + attrs: 0x0000000000000000 + type: 3cb8e202-3b7e-47dd-8a3c-7ff2a13cfcec + (cros-root) + guid: 0b23ba00-a11c-ed4e-8b49-5e8738899569 + 6 0x00000029 0x00000029 "" + attrs: 0x0000000000000000 + type: fe3a2a5d-4f32-41a7-b725-accc3285a309 + (cros-kern) + guid: 6d8158a8-f82d-0d4d-8983-a3ada4eb9b73 + 7 0x0000002a 0x0000002a "" + attrs: 0x0000000000000000 + type: 3cb8e202-3b7e-47dd-8a3c-7ff2a13cfcec + (cros-root) + guid: 76e8f9b0-7db7-3844-8f18-21de93485211 + 8 0x0000102d 0x0000182c "" + attrs: 0x0000000000000000 + type: ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 + (data) + guid: 071dfd2d-173c-f64b-9474-3318665e1d24 + 9 0x0000002b 0x0000002b "" + attrs: 0x0000000000000000 + type: 2e0a753d-9e48-43b0-8337-b15192cb1b5e + (cros-rsrv) + guid: b9d078c3-bafa-cd48-b771-a0aaa18d5008 + 10 0x0000002c 0x0000002c "" + attrs: 0x0000000000000000 + type: 2e0a753d-9e48-43b0-8337-b15192cb1b5e + (cros-rsrv) + guid: 7b0c0234-1a29-0c4f-bceb-40fae8f7b27c + 11 0x00000028 0x00000028 "" + attrs: 0x0000000000000000 + type: cab6e88e-abf3-4102-a07a-d4bb9be3c1d3 + (cros-fw) + guid: aced715d-cd1f-394a-9e3e-24b54a7b1472 + 12 0x0000182d 0x0000202c "" + attrs: 0x0000000000000000 + type: c12a7328-f81f-11d2-ba4b-00a0c93ec93b + (system) + guid: e1672afd-75ee-d74e-be95-8726b12b5e74 + => part_find c12a7328-f81f-11d2-ba4b-00a0c93ec93b + => print target_part + target_part=host 0:c + => ls $target_part + EFI/ + + 0 file(s), 1 dir(s) + + +Return value +------------ + +The return value $? is set to 0 (true) if the command succeeds. If no partition +could be found, the return value $? is set to 1 (false). diff --git a/doc/usage/index.rst b/doc/usage/index.rst index eeda632b1a0..4d6b2f5227a 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -100,6 +100,7 @@ Shell commands cmd/mv cmd/panic cmd/part + cmd/part_find cmd/pause cmd/pinmux cmd/printenv diff --git a/test/cmd/Makefile b/test/cmd/Makefile index 5fe6ac7bb3e..773b3d7569b 100644 --- a/test/cmd/Makefile +++ b/test/cmd/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_CMD_MEMINFO) += meminfo.o endif obj-$(CONFIG_CMD_MEMORY) += mem_copy.o obj-$(CONFIG_CMD_MEM_SEARCH) += mem_search.o +obj-$(CONFIG_CMD_PART_FIND) += part_find.o ifdef CONFIG_CMD_PCI obj-$(CONFIG_CMD_PCI_MPS) += pci_mps.o endif diff --git a/test/cmd/part_find.c b/test/cmd/part_find.c new file mode 100644 index 00000000000..1663d4a654f --- /dev/null +++ b/test/cmd/part_find.c @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Test for 'part_find' command + * + * Copyright 2024 Google LLC + * Written by Simon Glass <sjg@chromium.org> + */ + +#include <dm/device-internal.h> +#include <dm/lists.h> +#include <dm/ofnode.h> +#include <dm/test.h> +#include <test/cmd.h> +#include <test/ut.h> + +/* Test 'part_find' command */ +static int cmd_test_part_find(struct unit_test_state *uts) +{ + struct udevice *dev; + ofnode root, node; + + /* Enable the requested mmc node since we need a second bootflow */ + 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)); + + ut_assertok(device_probe(dev)); + + ut_assertok(env_set("target_part", NULL)); + ut_assertok(run_command("part_find c12a7328-f81f-11d2-ba4b-00a0c93ec93b", 0)); + ut_assert_console_end(); + ut_asserteq_str("mmc 5:c", env_get("target_part")); + + ut_asserteq(1, run_command("part_find invalid", 0)); + ut_asserteq_str("mmc 5:c", env_get("target_part")); + + ut_assert_console_end(); + + return 0; +} +CMD_TEST(cmd_test_part_find, UTF_CONSOLE | UTF_DM | UTF_SCAN_FDT); -- 2.43.0