From 5d884837f4cbe67c25081222f93220b5437e846f Mon Sep 17 00:00:00 2001 From: Jakub Czapiga Date: Tue, 6 Apr 2021 09:42:02 +0200 Subject: tests: Add lib/coreboot_table-test test case Signed-off-by: Jakub Czapiga Change-Id: I4d7d9ca43316bf514bb5ebd8909f441bcfa20eba Reviewed-on: https://review.coreboot.org/c/coreboot/+/52159 Tested-by: build bot (Jenkins) Reviewed-by: Paul Fagerburg --- tests/lib/Makefile.inc | 10 + tests/lib/coreboot_table-test.c | 497 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 507 insertions(+) create mode 100644 tests/lib/coreboot_table-test.c (limited to 'tests') diff --git a/tests/lib/Makefile.inc b/tests/lib/Makefile.inc index ee2bf5ab82..4943e06849 100644 --- a/tests/lib/Makefile.inc +++ b/tests/lib/Makefile.inc @@ -26,6 +26,7 @@ tests-y += memrange-test tests-y += uuid-test tests-y += bootmem-test tests-y += dimm_info_util-test +tests-y += coreboot_table-test string-test-srcs += tests/lib/string-test.c string-test-srcs += src/lib/string.c @@ -129,3 +130,12 @@ dimm_info_util-test-srcs += tests/lib/dimm_info_util-test.c dimm_info_util-test-srcs += src/lib/dimm_info_util.c dimm_info_util-test-srcs += tests/stubs/console.c +coreboot_table-test-srcs += tests/lib/coreboot_table-test.c +coreboot_table-test-srcs += tests/stubs/console.c +coreboot_table-test-srcs += src/lib/compute_ip_checksum.c +coreboot_table-test-srcs += src/lib/coreboot_table.c +coreboot_table-test-srcs += src/lib/imd_cbmem.c +coreboot_table-test-srcs += src/lib/imd.c +coreboot_table-test-cflags += -I src -I 3rdparty/vboot/firmware/include +coreboot_table-test-cflags += -I tests/include/tests/lib/fmap +coreboot_table-test-mocks += cbmem_top_chipset diff --git a/tests/lib/coreboot_table-test.c b/tests/lib/coreboot_table-test.c new file mode 100644 index 0000000000..cd82ee5c3a --- /dev/null +++ b/tests/lib/coreboot_table-test.c @@ -0,0 +1,497 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +/* Copy of lb_table_init() implementation for testing purposes */ +static struct lb_header *lb_table_init(unsigned long addr) +{ + struct lb_header *header; + + /* 16 byte align the address */ + addr += 15; + addr &= ~15; + + header = (void *)addr; + header->signature[0] = 'L'; + header->signature[1] = 'B'; + header->signature[2] = 'I'; + header->signature[3] = 'O'; + header->header_bytes = sizeof(*header); + header->header_checksum = 0; + header->table_bytes = 0; + header->table_checksum = 0; + header->table_entries = 0; + return header; +} + +static struct lb_record *lb_first_record(struct lb_header *header) +{ + struct lb_record *rec; + rec = (void *)(((char *)header) + sizeof(*header)); + return rec; +} + +#define LB_RECORD_FOR_EACH(record_ptr, index, header) \ + for (index = 0, record_ptr = lb_first_record(header); \ + index < header->table_entries; \ + record_ptr = (struct lb_record *)((uintptr_t)record_ptr \ + + record_ptr->size), index++) + +static void test_lb_add_gpios(void **state) +{ + struct lb_gpio gpios[] = { + {-1, ACTIVE_HIGH, 1, "lid"}, + {-1, ACTIVE_HIGH, 0, "power"}, + {-1, ACTIVE_HIGH, 1, "oprom"}, + {-1, ACTIVE_HIGH, 0, "EC in RW"}, + }; + const size_t gpios_buf_size = sizeof(struct lb_gpios) + sizeof(struct lb_gpio) * 32; + uint8_t gpios_buf[gpios_buf_size]; + struct lb_gpios *gpios_table = (struct lb_gpios *)gpios_buf; + gpios_table->count = 0; + gpios_table->size = 0; + gpios_table->tag = LB_TAG_GPIO; + + /* Add GPIOs an check if they have been added to the table. + GPIOs are added in the same order to the end of the table. */ + lb_add_gpios(gpios_table, gpios, ARRAY_SIZE(gpios)); + assert_int_equal(ARRAY_SIZE(gpios), gpios_table->count); + assert_int_equal(sizeof(gpios), gpios_table->size); + assert_memory_equal(&gpios_table->gpios[0], gpios, sizeof(gpios)); + + /* Add subset of gpios and check if they have been added correctly. */ + lb_add_gpios(gpios_table, &gpios[1], 2); + assert_int_equal(ARRAY_SIZE(gpios) + 2, gpios_table->count); + assert_int_equal(sizeof(gpios) + 2 * sizeof(gpios[0]), gpios_table->size); + assert_memory_equal(&gpios_table->gpios[0], gpios, sizeof(gpios)); + assert_memory_equal(&gpios_table->gpios[ARRAY_SIZE(gpios)], &gpios[1], + 2 * sizeof(gpios[0])); +} + +uint8_t tables_buffer[sizeof(struct lb_header) + 10 * KiB]; +static int setup_test_header(void **state) +{ + *state = lb_table_init((uintptr_t)tables_buffer); + + return 0; +} + +static void test_lb_new_record(void **state) +{ + struct lb_header *header = *state; + const size_t entries = 10; + int i; + size_t entries_offset; + size_t accumulated_size = 0; + struct lb_record *curr; + + + assert_int_equal(0, header->table_entries); + assert_int_equal(0, header->table_bytes); + + lb_new_record(header); + assert_int_equal(1, header->table_entries); + assert_int_equal(0, header->table_bytes); + + /* Create few entries with varying sizes (but at least of sizeof(struct lb_record)) + Accumulate and check size of table after each lb_new_record() call. */ + entries_offset = header->table_entries; + accumulated_size = sizeof(struct lb_record); + for (i = 0; i < entries; ++i) { + curr = lb_new_record(header); + curr->size = sizeof(struct lb_record) + ((i + 2) * 7) % 32; + + assert_int_equal(entries_offset + (i + 1), header->table_entries); + assert_int_equal(accumulated_size, header->table_bytes); + accumulated_size += curr->size; + } +} + +static void test_lb_add_serial(void **state) +{ + struct lb_header *header = *state; + struct lb_serial serial; + + serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; + serial.baseaddr = 0xFEDC6000; + serial.baud = 115200; + serial.regwidth = 1; + serial.input_hertz = 115200 * 16; + serial.uart_pci_addr = 0x0; + lb_add_serial(&serial, header); + + assert_int_equal(1, header->table_entries); + /* Table bytes and checksum should be zero, because it is updated with size of previous + record or when table is closed. No previous record is present. */ + assert_int_equal(0, header->table_bytes); + assert_int_equal(0, header->table_checksum); +} + +static void test_lb_add_console(void **state) +{ + struct lb_header *header = *state; + + lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, header); + assert_int_equal(1, header->table_entries); + /* Table bytes and checksum should be zero, because it is updated with size of previous + record or when table is closed. No previous record is present. */ + assert_int_equal(0, header->table_bytes); + assert_int_equal(0, header->table_checksum); +} + +static void test_multiple_entries(void **state) +{ + struct lb_header *header = *state; + + /* Add two entries */ + lb_add_console(LB_TAG_CONSOLE_SERIAL8250, header); + lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, header); + + assert_int_equal(2, header->table_entries); + assert_int_equal(sizeof(struct lb_console), header->table_bytes); +} + +static void test_write_coreboot_forwarding_table(void **state) +{ + struct lb_header *header = *state; + uint8_t forwarding_table_buffer[sizeof(struct lb_header) + + 2 * sizeof(struct lb_forward)]; + struct lb_header *forward_header = + (struct lb_header *)ALIGN_UP((uintptr_t)forwarding_table_buffer, 16); + size_t forwarding_table_size = + write_coreboot_forwarding_table((uintptr_t)forwarding_table_buffer, + (uintptr_t)header); + size_t expected_forwarding_table_size = ALIGN_UP((uintptr_t)forwarding_table_buffer, 16) + + sizeof(struct lb_header) + + sizeof(struct lb_forward) + - (uintptr_t)forwarding_table_buffer; + assert_int_equal(expected_forwarding_table_size, forwarding_table_size); + + assert_int_equal(1, forward_header->table_entries); + assert_int_equal(sizeof(struct lb_forward), forward_header->table_bytes); + assert_ptr_equal(header, + ((struct lb_forward *)lb_first_record(forward_header))->forward); +} + +/* Mocks for write_tables() */ +const char mainboard_vendor[] = CONFIG_MAINBOARD_VENDOR; +const char mainboard_part_number[] = CONFIG_MAINBOARD_PART_NUMBER; + +const char coreboot_version[] = "4.13"; +const char coreboot_extra_version[] = "abcdef"; +const char coreboot_build[] = "Coreboot build info"; +const unsigned int coreboot_version_timestamp = 1617191902U; +const unsigned int coreboot_major_revision = 4; +const unsigned int coreboot_minor_revision = 13; + +const char coreboot_compile_time[] = "13:58:22"; +const char coreboot_dmi_date[] = "03/31/2021"; + +const struct bcd_date coreboot_build_date = { + .century = 0x20, + .year = 0x20, + .month = 0x03, + .day = 0x31, + .weekday = 0x2, +}; + +const unsigned int asl_revision = 0x20200925; + +void arch_write_tables(uintptr_t coreboot_table) +{ +} + +struct resource mock_bootmem_ranges[] = { + { .base = 0x1000, .size = 0x2000, .flags = LB_MEM_RAM }, + { .base = 0x0000, .size = 0x4000, .flags = LB_MEM_RAM }, +}; + +void bootmem_write_memory_table(struct lb_memory *mem) +{ + struct lb_memory_range *lb_r = &mem->map[0]; + int i; + + /* Insert entries for testing */ + for (i = 0; i < ARRAY_SIZE(mock_bootmem_ranges); ++i) { + struct resource *res = &mock_bootmem_ranges[i]; + lb_r->start = pack_lb64(res->base); + lb_r->size = pack_lb64(res->size); + lb_r->type = res->flags; + lb_r++; + mem->size += sizeof(struct lb_memory_range); + } +} + +void uart_fill_lb(void *data) +{ + struct lb_serial serial; + serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; + serial.baseaddr = 0xFEDC6000; + serial.baud = 115200; + serial.regwidth = 1; + serial.input_hertz = 115200 * 16; + serial.uart_pci_addr = 0x0; + lb_add_serial(&serial, data); + + lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data); +} + +struct cbfs_boot_device cbfs_boot_dev = { + .rdev = REGION_DEV_INIT(NULL, 0, 0x1000), + .mcache = (void *)0x1000, + .mcache_size = 0x1000, +}; + +const struct cbfs_boot_device *cbfs_get_boot_device(bool force_ro) +{ + return &cbfs_boot_dev; +} + +void cbmem_run_init_hooks(int is_recovery) +{ +} + +extern uintptr_t _cbmem_top_ptr; +void *__wrap_cbmem_top_chipset(void) +{ + return (void *)_cbmem_top_ptr; +} + +#define CBMEM_SIZE (64 * KiB) + +static int teardown_write_tables_test(void **state) +{ + free(*state); + _cbmem_top_ptr = 0; + return 0; +} + +static int setup_write_tables_test(void **state) +{ + /* Allocate more data to have space for alignment */ + void *top_ptr = malloc(CBMEM_SIZE + DYN_CBMEM_ALIGN_SIZE); + int32_t *mmc_status = NULL; + + if (!top_ptr) + return -1; + + *state = top_ptr; + + _cbmem_top_ptr = ALIGN_UP((uintptr_t)top_ptr + CBMEM_SIZE, DYN_CBMEM_ALIGN_SIZE); + + cbmem_initialize_empty(); + + mmc_status = cbmem_add(CBMEM_ID_MMC_STATUS, sizeof(int32_t)); + + if (mmc_status == NULL) { + teardown_write_tables_test(state); + return -1; + } + + *mmc_status = 0x4433AADD; + + return 0; +} + +const struct region_device *boot_device_ro(void) +{ + return &cbfs_boot_dev.rdev; +} + +uint64_t get_fmap_flash_offset(void) +{ + return FMAP_OFFSET; +} + +uint32_t freq_khz = 5000 * 1000; +void lb_arch_add_records(struct lb_header *header) +{ + struct lb_tsc_info *tsc_info; + + tsc_info = (void *)lb_new_record(header); + tsc_info->tag = LB_TAG_TSC_INFO; + tsc_info->size = sizeof(*tsc_info); + tsc_info->freq_khz = freq_khz; +} + +static void test_write_tables(void **state) +{ + void *cbtable_start; + struct lb_header *header; + struct lb_record *record; + int32_t *mmc_status = cbmem_find(CBMEM_ID_MMC_STATUS); + size_t i = 0; + + /* Expect function to store cbtable entry in cbmem */ + cbtable_start = write_tables(); + assert_ptr_equal(cbtable_start, cbmem_find(CBMEM_ID_CBTABLE)); + + /* Expect correct lb_header at cbtable_start address */ + header = (struct lb_header *)cbtable_start; + assert_non_null(header); + assert_memory_equal("LBIO", header, 4); + assert_int_equal(sizeof(*header), header->header_bytes); + /* At least one entry should be present. */ + assert_int_not_equal(0, header->table_entries); + + LB_RECORD_FOR_EACH(record, i, header) { + switch (record->tag) { + case LB_TAG_MEMORY: + /* Should be the same as in bootmem_write_memory_table() */ + assert_int_equal(sizeof(struct lb_memory) + + ARRAY_SIZE(mock_bootmem_ranges) + * sizeof(struct lb_memory_range), + record->size); + + const struct lb_memory *memory = (struct lb_memory *)record; + const struct lb_memory_range *range; + const struct resource *res; + struct lb_uint64 value; + + for (int i = 0; i < ARRAY_SIZE(mock_bootmem_ranges); ++i) { + res = &mock_bootmem_ranges[i]; + range = &memory->map[i]; + + value = pack_lb64(res->base); + assert_memory_equal(&value, &range->start, + sizeof(struct lb_uint64)); + value = pack_lb64(res->size); + assert_memory_equal(&value, &range->size, + sizeof(struct lb_uint64)); + assert_int_equal(range->type, res->flags); + } + break; + case LB_TAG_MAINBOARD: + /* Mainboard record contains its header followed + by two null-terminated strings */ + assert_int_equal(ALIGN_UP(sizeof(struct lb_mainboard) + + ARRAY_SIZE(mainboard_vendor) + + ARRAY_SIZE(mainboard_part_number), 8), record->size); + break; + case LB_TAG_VERSION: + assert_int_equal(ALIGN_UP(sizeof(struct lb_string) + + ARRAY_SIZE(coreboot_version), 8), record->size); + break; + case LB_TAG_EXTRA_VERSION: + assert_int_equal(ALIGN_UP(sizeof(struct lb_string) + + ARRAY_SIZE(coreboot_extra_version), 8), + record->size); + break; + case LB_TAG_BUILD: + assert_int_equal(ALIGN_UP(sizeof(struct lb_string) + + ARRAY_SIZE(coreboot_build), 8), + record->size); + break; + case LB_TAG_COMPILE_TIME: + assert_int_equal(ALIGN_UP(sizeof(struct lb_string) + + ARRAY_SIZE(coreboot_compile_time), 8), + record->size); + break; + case LB_TAG_SERIAL: + assert_int_equal(sizeof(struct lb_serial), record->size); + + /* This struct have the same values as created in uart_fill_lb() */ + const struct lb_serial *serial = (struct lb_serial *)record; + assert_int_equal(LB_SERIAL_TYPE_MEMORY_MAPPED, serial->type); + assert_int_equal(0xFEDC6000, serial->baseaddr); + assert_int_equal(115200, serial->baud); + assert_int_equal(1, serial->regwidth); + assert_int_equal(115200 * 16, serial->input_hertz); + assert_int_equal(0x0, serial->uart_pci_addr); + break; + case LB_TAG_CONSOLE: + assert_int_equal(sizeof(struct lb_console), record->size); + + /* This struct have the same values as created in uart_fill_lb() */ + const struct lb_console *console = (struct lb_console *)record; + assert_int_equal(LB_TAG_CONSOLE_SERIAL8250MEM, console->type); + break; + case LB_TAG_VERSION_TIMESTAMP: + assert_int_equal(sizeof(struct lb_timestamp), record->size); + + const struct lb_timestamp *timestamp = (struct lb_timestamp *)record; + assert_int_equal(coreboot_version_timestamp, timestamp->timestamp); + break; + case LB_TAG_BOOT_MEDIA_PARAMS: + assert_int_equal(sizeof(struct lb_boot_media_params), record->size); + + const struct lb_boot_media_params *bmp = + (struct lb_boot_media_params *)record; + const struct cbfs_boot_device *cbd = cbfs_get_boot_device(false); + const struct region_device *boot_dev = boot_device_ro(); + assert_int_equal(region_device_offset(&cbd->rdev), bmp->cbfs_offset); + assert_int_equal(region_device_sz(&cbd->rdev), bmp->cbfs_size); + assert_int_equal(region_device_sz(boot_dev), bmp->boot_media_size); + assert_int_equal(get_fmap_flash_offset(), bmp->fmap_offset); + + break; + case LB_TAG_CBMEM_ENTRY: + assert_int_equal(sizeof(struct lb_cbmem_entry), record->size); + + const struct lb_cbmem_entry *cbmem_entry = + (struct lb_cbmem_entry *)record; + const LargestIntegralType expected_tags[] = { + CBMEM_ID_CBTABLE, + CBMEM_ID_MMC_STATUS + }; + assert_in_set(cbmem_entry->id, + expected_tags, ARRAY_SIZE(expected_tags)); + break; + case LB_TAG_TSC_INFO: + assert_int_equal(sizeof(struct lb_tsc_info), record->size); + + const struct lb_tsc_info *tsc_info = (struct lb_tsc_info *)record; + assert_int_equal(freq_khz, tsc_info->freq_khz); + break; + case LB_TAG_MMC_INFO: + assert_int_equal(sizeof(struct lb_mmc_info), record->size); + + const struct lb_mmc_info *mmc_info = (struct lb_mmc_info *)record; + assert_int_equal(*mmc_status, mmc_info->early_cmd1_status); + break; + case LB_TAG_BOARD_CONFIG: + assert_int_equal(sizeof(struct lb_board_config), record->size); + + const struct lb_board_config *board_config = + (struct lb_board_config *)record; + const struct lb_uint64 expected_fw_version = pack_lb64(fw_config_get()); + assert_memory_equal(&expected_fw_version, + &board_config->fw_config, sizeof(struct lb_uint64)); + assert_int_equal(board_id(), board_config->board_id); + assert_int_equal(ram_code(), board_config->ram_code); + assert_int_equal(sku_id(), board_config->sku_id); + break; + default: + fail_msg("Unexpected tag found in record. Tag ID: 0x%x", record->tag); + } + } +} + +int main(void) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_lb_add_gpios), + cmocka_unit_test_setup(test_lb_new_record, setup_test_header), + cmocka_unit_test_setup(test_lb_add_serial, setup_test_header), + cmocka_unit_test_setup(test_lb_add_console, setup_test_header), + cmocka_unit_test_setup(test_multiple_entries, setup_test_header), + cmocka_unit_test_setup(test_write_coreboot_forwarding_table, setup_test_header), + cmocka_unit_test_setup_teardown(test_write_tables, + setup_write_tables_test, + teardown_write_tables_test), + }; + + return cmocka_run_group_tests(tests, NULL, NULL); +} -- cgit v1.2.3