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Add a test for the RISCV_EFI_BOOT_PROTOCOL. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* efi_selftest_riscv
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*
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* Copyright (c) 2022 Ventana Micro Systems Inc
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*
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* Test the RISCV_EFI_BOOT_PROTOCOL.
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*
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* The following services are tested:
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* get_boot_hartid
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*/
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#include <efi_selftest.h>
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#include <efi_riscv.h>
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#include <linux/libfdt.h>
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static const struct efi_system_table *systemtab;
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static const struct efi_boot_services *boottime;
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static const char *fdt;
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static const efi_guid_t riscv_efi_boot_protocol_guid = RISCV_EFI_BOOT_PROTOCOL_GUID;
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static const efi_guid_t fdt_guid = EFI_FDT_GUID;
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/**
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* efi_st_get_config_table() - get configuration table
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*
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* @guid: GUID of the configuration table
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* Return: pointer to configuration table or NULL
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*/
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static void *efi_st_get_config_table(const efi_guid_t *guid)
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{
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size_t i;
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for (i = 0; i < systab.nr_tables; i++) {
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if (!guidcmp(guid, &systemtab->tables[i].guid))
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return systemtab->tables[i].table;
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}
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return NULL;
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}
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/*
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* Setup unit test.
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*
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* @handle: handle of the loaded image
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* @systable: system table
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* @return: EFI_ST_SUCCESS for success
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*/
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static int setup(const efi_handle_t img_handle,
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const struct efi_system_table *systable)
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{
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systemtab = systable;
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boottime = systable->boottime;
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fdt = efi_st_get_config_table(&fdt_guid);
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if (!fdt) {
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efi_st_error("Missing device tree\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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}
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/*
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* Execute unit test.
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*
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* @return: EFI_ST_SUCCESS for success
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*/
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static int execute(void)
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{
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efi_status_t ret;
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struct riscv_efi_boot_protocol *prot;
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efi_uintn_t efi_hartid, fdt_hartid;
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int chosen_node, len;
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const fdt32_t *prop;
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/* Get riscv boot protocol */
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ret = boottime->locate_protocol(&riscv_efi_boot_protocol_guid, NULL,
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(void **)&prot);
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if (ret != EFI_SUCCESS) {
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efi_st_error("RISC-V Boot Protocol not available\n");
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return EFI_ST_FAILURE;
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}
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/* Get Boot Hart ID from EFI protocol */
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ret = prot->get_boot_hartid(prot, &efi_hartid);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Could not retrieve boot hart ID\n");
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return EFI_ST_FAILURE;
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}
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/* Get Boot Hart ID from FDT */
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chosen_node = fdt_path_offset(fdt, "/chosen");
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if (chosen_node < 0) {
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efi_st_error("/chosen node not found\n");
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return EFI_ST_FAILURE;
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}
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prop = fdt_getprop((void *)fdt, chosen_node, "boot-hartid", &len);
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if (!prop || len != sizeof(u32)) {
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efi_st_error("boot-hartid not found\n");
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return EFI_ST_FAILURE;
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}
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fdt_hartid = fdt32_to_cpu(*prop);
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/* Boot Hart ID should be same */
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if (efi_hartid != fdt_hartid) {
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efi_st_error("boot-hartid is not same in EFI and FDT\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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}
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EFI_UNIT_TEST(riscv) = {
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.name = "riscv",
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.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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.setup = setup,
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.execute = execute,
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};
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