Add a test for the RISCV_EFI_BOOT_PROTOCOL.
Signed-off-by: Sunil V L sunilvl@ventanamicro.com --- lib/efi_selftest/Makefile | 1 + lib/efi_selftest/efi_selftest_riscv.c | 119 ++++++++++++++++++++++++++ 2 files changed, 120 insertions(+) create mode 100644 lib/efi_selftest/efi_selftest_riscv.c
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile index 9ff6e1760c..0b05f8a591 100644 --- a/lib/efi_selftest/Makefile +++ b/lib/efi_selftest/Makefile @@ -64,6 +64,7 @@ obj-$(CONFIG_EFI_LOADER_HII) += efi_selftest_hii.o obj-$(CONFIG_EFI_RNG_PROTOCOL) += efi_selftest_rng.o obj-$(CONFIG_EFI_GET_TIME) += efi_selftest_rtc.o obj-$(CONFIG_EFI_TCG2_PROTOCOL) += efi_selftest_tcg2.o +obj-$(CONFIG_EFI_RISCV_BOOT_PROTOCOL) += efi_selftest_riscv.o
ifeq ($(CONFIG_GENERATE_ACPI_TABLE),) obj-y += efi_selftest_fdt.o diff --git a/lib/efi_selftest/efi_selftest_riscv.c b/lib/efi_selftest/efi_selftest_riscv.c new file mode 100644 index 0000000000..9d2182e61f --- /dev/null +++ b/lib/efi_selftest/efi_selftest_riscv.c @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * efi_selftest_riscv + * + * Copyright (c) 2022 Ventana Micro Systems Inc + * + * Test the RISCV_EFI_BOOT_PROTOCOL. + * + * The following services are tested: + * get_boot_hartid + */ + +#include <efi_selftest.h> +#include <efi_riscv.h> +#include <linux/libfdt.h> + +static const struct efi_system_table *systemtab; +static const struct efi_boot_services *boottime; +static const char *fdt; +static const efi_guid_t riscv_efi_boot_protocol_guid = RISCV_EFI_BOOT_PROTOCOL_GUID; +static const efi_guid_t fdt_guid = EFI_FDT_GUID; + +/** + * efi_st_get_config_table() - get configuration table + * + * @guid: GUID of the configuration table + * Return: pointer to configuration table or NULL + */ +static void *efi_st_get_config_table(const efi_guid_t *guid) +{ + size_t i; + + for (i = 0; i < systab.nr_tables; i++) { + if (!guidcmp(guid, &systemtab->tables[i].guid)) + return systemtab->tables[i].table; + } + return NULL; +} + +/* + * Setup unit test. + * + * @handle: handle of the loaded image + * @systable: system table + * @return: EFI_ST_SUCCESS for success + */ +static int setup(const efi_handle_t img_handle, + const struct efi_system_table *systable) +{ + systemtab = systable; + boottime = systable->boottime; + + fdt = efi_st_get_config_table(&fdt_guid); + + if (!fdt) { + efi_st_error("Missing device tree\n"); + return EFI_ST_FAILURE; + } + return EFI_ST_SUCCESS; +} + +/* + * Execute unit test. + * + * @return: EFI_ST_SUCCESS for success + */ +static int execute(void) +{ + efi_status_t ret; + struct riscv_efi_boot_protocol *prot; + efi_uintn_t efi_hartid, fdt_hartid; + int chosen_node, len; + const fdt32_t *prop; + + /* Get riscv boot protocol */ + ret = boottime->locate_protocol(&riscv_efi_boot_protocol_guid, NULL, + (void **)&prot); + if (ret != EFI_SUCCESS) { + efi_st_error("RISC-V Boot Protocol not available\n"); + return EFI_ST_FAILURE; + } + + /* Get Boot Hart ID from EFI protocol */ + ret = prot->get_boot_hartid(prot, &efi_hartid); + if (ret != EFI_SUCCESS) { + efi_st_error("Could not retrieve boot hart ID\n"); + return EFI_ST_FAILURE; + } + + /* Get Boot Hart ID from FDT */ + chosen_node = fdt_path_offset(fdt, "/chosen"); + if (chosen_node < 0) { + efi_st_error("/chosen node not found\n"); + return EFI_ST_FAILURE; + } + + prop = fdt_getprop((void *)fdt, chosen_node, "boot-hartid", &len); + if (!prop || len != sizeof(u32)) { + efi_st_error("boot-hartid not found\n"); + return EFI_ST_FAILURE; + } + + fdt_hartid = fdt32_to_cpu(*prop); + + /* Boot Hart ID should be same */ + if (efi_hartid != fdt_hartid) { + efi_st_error("boot-hartid is not same in EFI and FDT\n"); + return EFI_ST_FAILURE; + } + + return EFI_ST_SUCCESS; +} + +EFI_UNIT_TEST(riscv) = { + .name = "riscv", + .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, + .setup = setup, + .execute = execute, +};