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/*
* EFI efi_selftest
*
* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <efi_selftest.h>
#include <vsprintf.h>
static const struct efi_system_table *systable;
static const struct efi_boot_services *boottime;
static const struct efi_runtime_services *runtime;
static efi_handle_t handle;
static u16 reset_message[] = L"Selftest completed";
/*
* Exit the boot services.
*
* The size of the memory map is determined.
* Pool memory is allocated to copy the memory map.
* The memory amp is copied and the map key is obtained.
* The map key is used to exit the boot services.
*/
void efi_st_exit_boot_services(void)
{
unsigned long map_size = 0;
unsigned long map_key;
unsigned long desc_size;
u32 desc_version;
efi_status_t ret;
struct efi_mem_desc *memory_map;
ret = boottime->get_memory_map(&map_size, NULL, &map_key, &desc_size,
&desc_version);
if (ret != EFI_BUFFER_TOO_SMALL) {
efi_st_error(
"GetMemoryMap did not return EFI_BUFFER_TOO_SMALL\n");
return;
}
/* Allocate extra space for newly allocated memory */
map_size += sizeof(struct efi_mem_desc);
ret = boottime->allocate_pool(EFI_BOOT_SERVICES_DATA, map_size,
(void **)&memory_map);
if (ret != EFI_SUCCESS) {
efi_st_error("AllocatePool did not return EFI_SUCCESS\n");
return;
}
ret = boottime->get_memory_map(&map_size, memory_map, &map_key,
&desc_size, &desc_version);
if (ret != EFI_SUCCESS) {
efi_st_error("GetMemoryMap did not return EFI_SUCCESS\n");
return;
}
ret = boottime->exit_boot_services(handle, map_key);
if (ret != EFI_SUCCESS) {
efi_st_error("ExitBootServices did not return EFI_SUCCESS\n");
return;
}
efi_st_printf("\nBoot services terminated\n");
}
/*
* Set up a test.
*
* @test the test to be executed
* @failures counter that will be incremented if a failure occurs
* @return EFI_ST_SUCCESS for success
*/
static int setup(struct efi_unit_test *test, unsigned int *failures)
{
int ret;
if (!test->setup)
return EFI_ST_SUCCESS;
efi_st_printf("\nSetting up '%s'\n", test->name);
ret = test->setup(handle, systable);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("Setting up '%s' failed\n", test->name);
++*failures;
} else {
efi_st_printf("Setting up '%s' succeeded\n", test->name);
}
return ret;
}
/*
* Execute a test.
*
* @test the test to be executed
* @failures counter that will be incremented if a failure occurs
* @return EFI_ST_SUCCESS for success
*/
static int execute(struct efi_unit_test *test, unsigned int *failures)
{
int ret;
if (!test->execute)
return EFI_ST_SUCCESS;
efi_st_printf("\nExecuting '%s'\n", test->name);
ret = test->execute();
if (ret != EFI_ST_SUCCESS) {
efi_st_error("Executing '%s' failed\n", test->name);
++*failures;
} else {
efi_st_printf("Executing '%s' succeeded\n", test->name);
}
return ret;
}
/*
* Tear down a test.
*
* @test the test to be torn down
* @failures counter that will be incremented if a failure occurs
* @return EFI_ST_SUCCESS for success
*/
static int teardown(struct efi_unit_test *test, unsigned int *failures)
{
int ret;
if (!test->teardown)
return EFI_ST_SUCCESS;
efi_st_printf("\nTearing down '%s'\n", test->name);
ret = test->teardown();
if (ret != EFI_ST_SUCCESS) {
efi_st_error("Tearing down '%s' failed\n", test->name);
++*failures;
} else {
efi_st_printf("Tearing down '%s' succeeded\n", test->name);
}
return ret;
}
/*
* Execute selftest of the EFI API
*
* This is the main entry point of the EFI selftest application.
*
* All tests use a driver model and are run in three phases:
* setup, execute, teardown.
*
* A test may be setup and executed at boottime,
* it may be setup at boottime and executed at runtime,
* or it may be setup and executed at runtime.
*
* After executing all tests the system is reset.
*
* @image_handle: handle of the loaded EFI image
* @systab: EFI system table
*/
efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
struct efi_system_table *systab)
{
struct efi_unit_test *test;
unsigned int failures = 0;
systable = systab;
boottime = systable->boottime;
runtime = systable->runtime;
handle = image_handle;
con_out = systable->con_out;
con_in = systable->con_in;
efi_st_printf("\nTesting EFI API implementation\n");
efi_st_printf("\nNumber of tests to execute: %u\n",
ll_entry_count(struct efi_unit_test, efi_unit_test));
/* Execute boottime tests */
for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
if (test->phase == EFI_EXECUTE_BEFORE_BOOTTIME_EXIT) {
setup(test, &failures);
execute(test, &failures);
teardown(test, &failures);
}
}
/* Execute mixed tests */
for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
if (test->phase == EFI_SETUP_BEFORE_BOOTTIME_EXIT)
setup(test, &failures);
}
efi_st_exit_boot_services();
for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
if (test->phase == EFI_SETUP_BEFORE_BOOTTIME_EXIT) {
execute(test, &failures);
teardown(test, &failures);
}
}
/* Execute runtime tests */
for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
if (test->phase == EFI_SETUP_AFTER_BOOTTIME_EXIT) {
setup(test, &failures);
execute(test, &failures);
teardown(test, &failures);
}
}
/* Give feedback */
efi_st_printf("\nSummary: %u failures\n\n", failures);
/* Reset system */
efi_st_printf("Preparing for reset. Press any key.\n");
efi_st_get_key();
runtime->reset_system(EFI_RESET_WARM, EFI_NOT_READY,
sizeof(reset_message), reset_message);
efi_st_printf("\n");
efi_st_error("Reset failed.\n");
return EFI_UNSUPPORTED;
}
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