u-boot/lib/efi_selftest/efi_selftest_variables_runtime.c
Simon Glass 156ccbc3c4 efi: Use 16-bit unicode strings
At present we use wide characters for unicode but this is not necessary.
Change the code to use the 'u' literal instead. This helps to fix build
warnings for sandbox on rpi.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-02-03 12:16:01 -05:00

93 lines
2.3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_variables_runtime
*
* Copyright (c) 2019 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* This unit test checks the runtime services for variables after
* ExitBootServices():
* GetVariable, GetNextVariableName, SetVariable, QueryVariableInfo.
*/
#include <efi_selftest.h>
#define EFI_ST_MAX_DATA_SIZE 16
#define EFI_ST_MAX_VARNAME_SIZE 40
static struct efi_boot_services *boottime;
static struct efi_runtime_services *runtime;
static const efi_guid_t guid_vendor0 = EFI_GLOBAL_VARIABLE_GUID;
/*
* Setup unit test.
*
* @handle handle of the loaded image
* @systable system table
*/
static int setup(const efi_handle_t img_handle,
const struct efi_system_table *systable)
{
boottime = systable->boottime;
runtime = systable->runtime;
return EFI_ST_SUCCESS;
}
/**
* execute() - execute unit test
*
* As runtime support is not implmented expect EFI_UNSUPPORTED to be returned.
*/
static int execute(void)
{
efi_status_t ret;
efi_uintn_t len;
u32 attr;
u8 v[16] = {0x5d, 0xd1, 0x5e, 0x51, 0x5a, 0x05, 0xc7, 0x0c,
0x35, 0x4a, 0xae, 0x87, 0xa5, 0xdf, 0x0f, 0x65,};
u8 data[EFI_ST_MAX_DATA_SIZE];
u16 varname[EFI_ST_MAX_VARNAME_SIZE];
efi_guid_t guid;
u64 max_storage, rem_storage, max_size;
ret = runtime->query_variable_info(EFI_VARIABLE_BOOTSERVICE_ACCESS,
&max_storage, &rem_storage,
&max_size);
if (ret != EFI_UNSUPPORTED) {
efi_st_error("QueryVariableInfo failed\n");
return EFI_ST_FAILURE;
}
ret = runtime->set_variable(u"efi_st_var0", &guid_vendor0,
EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS,
3, v + 4);
if (ret != EFI_UNSUPPORTED) {
efi_st_error("SetVariable failed\n");
return EFI_ST_FAILURE;
}
len = EFI_ST_MAX_DATA_SIZE;
ret = runtime->get_variable(u"PlatformLangCodes", &guid_vendor0,
&attr, &len, data);
if (ret != EFI_SUCCESS) {
efi_st_error("GetVariable failed\n");
return EFI_ST_FAILURE;
}
memset(&guid, 0, 16);
*varname = 0;
len = 2 * EFI_ST_MAX_VARNAME_SIZE;
ret = runtime->get_next_variable_name(&len, varname, &guid);
if (ret != EFI_SUCCESS) {
efi_st_error("GetNextVariableName failed\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(variables_run) = {
.name = "variables at runtime",
.phase = EFI_SETUP_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
};