Provide a unit test for the variable services at runtime.
Currently we expect EFI_UNSUPPORTED to be returned as the runtime implementation is still missing.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- lib/efi_selftest/Makefile | 1 + .../efi_selftest_variables_runtime.c | 94 +++++++++++++++++++ 2 files changed, 95 insertions(+) create mode 100644 lib/efi_selftest/efi_selftest_variables_runtime.c
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile index bb3ebd7fa7..f322f8a27d 100644 --- a/lib/efi_selftest/Makefile +++ b/lib/efi_selftest/Makefile @@ -34,6 +34,7 @@ efi_selftest_textinputex.o \ efi_selftest_textoutput.o \ efi_selftest_tpl.o \ efi_selftest_util.o \ +efi_selftest_variables_runtime.o \ efi_selftest_watchdog.o
obj-$(CONFIG_EFI_DEVICE_PATH_TO_TEXT) += efi_selftest_devicepath.o diff --git a/lib/efi_selftest/efi_selftest_variables_runtime.c b/lib/efi_selftest/efi_selftest_variables_runtime.c new file mode 100644 index 0000000000..b3b40ad2cf --- /dev/null +++ b/lib/efi_selftest/efi_selftest_variables_runtime.c @@ -0,0 +1,94 @@ +// 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_GUID(0x67029eb5, 0x0af2, 0xf6b1, + 0xda, 0x53, 0xfc, 0xb5, 0x66, 0xdd, 0x1c, 0xe6); + +/* + * 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(L"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 = 3; + ret = runtime->get_variable(L"efi_st_var0", &guid_vendor0, + &attr, &len, data); + if (ret != EFI_UNSUPPORTED) { + efi_st_error("GetVariable failed\n"); + return EFI_ST_FAILURE; + } + memset(&guid, 0, 16); + *varname = 0; + ret = runtime->get_next_variable_name(&len, varname, &guid); + if (ret != EFI_UNSUPPORTED) { + 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, +}; -- 2.20.1