From 96383bdfe421f01de9c339570de40e9bfd9ef455 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Wed, 23 Oct 2019 16:46:41 +0200 Subject: [PATCH] tests: add OP-TEE test suite OP-TEE can get supplied with a devicetree and will then insert its firmware node and reserved-memory sections into it. As this devicetree often is not the one supplied to a later loaded kernel, a previous commit added functionality to transfer these nodes onto that new devicetree. To make sure this functionality stays intact, also add a test for the transfer functionality. Signed-off-by: Heiko Stuebner Reviewed-by: Simon Glass --- Makefile | 1 + include/test/optee.h | 14 +++ include/test/suites.h | 1 + test/Kconfig | 1 + test/cmd_ut.c | 6 ++ test/optee/Kconfig | 7 ++ test/optee/Makefile | 13 +++ test/optee/cmd_ut_optee.c | 149 +++++++++++++++++++++++++++++ test/optee/test-optee-base.dts | 13 +++ test/optee/test-optee-no-optee.dts | 13 +++ test/optee/test-optee-optee.dts | 32 +++++++ 11 files changed, 250 insertions(+) create mode 100644 include/test/optee.h create mode 100644 test/optee/Kconfig create mode 100644 test/optee/Makefile create mode 100644 test/optee/cmd_ut_optee.c create mode 100644 test/optee/test-optee-base.dts create mode 100644 test/optee/test-optee-no-optee.dts create mode 100644 test/optee/test-optee-optee.dts diff --git a/Makefile b/Makefile index a9a78c30d6..3e0cbd987e 100644 --- a/Makefile +++ b/Makefile @@ -751,6 +751,7 @@ libs-$(CONFIG_API) += api/ libs-$(CONFIG_HAS_POST) += post/ libs-$(CONFIG_UNIT_TEST) += test/ test/dm/ libs-$(CONFIG_UT_ENV) += test/env/ +libs-$(CONFIG_UT_OPTEE) += test/optee/ libs-$(CONFIG_UT_OVERLAY) += test/overlay/ libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) diff --git a/include/test/optee.h b/include/test/optee.h new file mode 100644 index 0000000000..a8c6e6395f --- /dev/null +++ b/include/test/optee.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH + */ + +#ifndef __TEST_OPTEE_H__ +#define __TEST_OPTEE_H__ + +#include + +/* Declare a new environment test */ +#define OPTEE_TEST(_name, _flags) UNIT_TEST(_name, _flags, optee_test) + +#endif /* __TEST_OPTEE_H__ */ diff --git a/include/test/suites.h b/include/test/suites.h index 01bee09346..20970f08d6 100644 --- a/include/test/suites.h +++ b/include/test/suites.h @@ -28,6 +28,7 @@ int do_ut_compression(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]); int do_ut_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); int do_ut_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); int do_ut_lib(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +int do_ut_optee(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); int do_ut_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); int do_ut_unicode(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); diff --git a/test/Kconfig b/test/Kconfig index 48a0e501f8..f53629aac5 100644 --- a/test/Kconfig +++ b/test/Kconfig @@ -33,4 +33,5 @@ config UT_UNICODE source "test/dm/Kconfig" source "test/env/Kconfig" +source "test/optee/Kconfig" source "test/overlay/Kconfig" diff --git a/test/cmd_ut.c b/test/cmd_ut.c index e3b89504e7..2781f8bd56 100644 --- a/test/cmd_ut.c +++ b/test/cmd_ut.c @@ -43,6 +43,9 @@ static cmd_tbl_t cmd_ut_sub[] = { #if defined(CONFIG_UT_ENV) U_BOOT_CMD_MKENT(env, CONFIG_SYS_MAXARGS, 1, do_ut_env, "", ""), #endif +#ifdef CONFIG_UT_OPTEE + U_BOOT_CMD_MKENT(optee, CONFIG_SYS_MAXARGS, 1, do_ut_optee, "", ""), +#endif #ifdef CONFIG_UT_OVERLAY U_BOOT_CMD_MKENT(overlay, CONFIG_SYS_MAXARGS, 1, do_ut_overlay, "", ""), #endif @@ -114,6 +117,9 @@ static char ut_help_text[] = #ifdef CONFIG_UT_LIB "ut lib [test-name] - test library functions\n" #endif +#ifdef CONFIG_UT_OPTEE + "ut optee [test-name]\n" +#endif #ifdef CONFIG_UT_OVERLAY "ut overlay [test-name]\n" #endif diff --git a/test/optee/Kconfig b/test/optee/Kconfig new file mode 100644 index 0000000000..2f6834aa3b --- /dev/null +++ b/test/optee/Kconfig @@ -0,0 +1,7 @@ +config UT_OPTEE + bool "Enable OP-TEE Unit Tests" + depends on UNIT_TEST && OF_CONTROL && OPTEE + default y + help + This enables the 'ut optee' command which runs a series of unit + tests on the optee library code.. diff --git a/test/optee/Makefile b/test/optee/Makefile new file mode 100644 index 0000000000..8793fd7ad6 --- /dev/null +++ b/test/optee/Makefile @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH + +# Test files +obj-y += cmd_ut_optee.o + +DTC_FLAGS += -@ + +# DT overlays +obj-y += test-optee-base.dtb.o +obj-y += test-optee-optee.dtb.o +obj-y += test-optee-no-optee.dtb.o diff --git a/test/optee/cmd_ut_optee.c b/test/optee/cmd_ut_optee.c new file mode 100644 index 0000000000..670682f3d4 --- /dev/null +++ b/test/optee/cmd_ut_optee.c @@ -0,0 +1,149 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include + +/* 4k ought to be enough for anybody */ +#define FDT_COPY_SIZE (4 * SZ_1K) + +extern u32 __dtb_test_optee_base_begin; +extern u32 __dtb_test_optee_optee_begin; +extern u32 __dtb_test_optee_no_optee_begin; + +static void *fdt; +static bool expect_success; + +static int optee_fdt_firmware(struct unit_test_state *uts) +{ + const void *prop; + int offs, len; + + offs = fdt_path_offset(fdt, "/firmware/optee"); + ut_assert(expect_success ? offs >= 0 : offs < 0); + + /* only continue if we have an optee node */ + if (offs < 0) + return CMD_RET_SUCCESS; + + prop = fdt_getprop(fdt, offs, "compatible", &len); + ut_assertok(strncmp((const char *)prop, "linaro,optee-tz", len)); + + prop = fdt_getprop(fdt, offs, "method", &len); + ut_assert(strncmp(prop, "hvc", 3) == 0 || strncmp(prop, "smc", 3) == 0); + + return CMD_RET_SUCCESS; +} +OPTEE_TEST(optee_fdt_firmware, 0); + +static int optee_fdt_protected_memory(struct unit_test_state *uts) +{ + int offs, subnode; + bool found; + + offs = fdt_path_offset(fdt, "/firmware/optee"); + ut_assert(expect_success ? offs >= 0 : offs < 0); + + /* only continue if we have an optee node */ + if (offs < 0) + return CMD_RET_SUCCESS; + + /* optee inserts its memory regions as reserved-memory nodes */ + offs = fdt_subnode_offset(fdt, 0, "reserved-memory"); + ut_assert(offs >= 0); + + subnode = fdt_first_subnode(fdt, offs); + ut_assert(subnode); + + found = 0; + while (subnode >= 0) { + const char *name = fdt_get_name(fdt, subnode, NULL); + struct fdt_resource res; + + ut_assert(name); + + /* only handle optee reservations */ + if (strncmp(name, "optee", 5)) + continue; + + found = true; + + /* check if this subnode has a reg property */ + ut_assertok(fdt_get_resource(fdt, subnode, "reg", 0, &res)); + subnode = fdt_next_subnode(fdt, subnode); + } + + ut_assert(found); + + return CMD_RET_SUCCESS; +} +OPTEE_TEST(optee_fdt_protected_memory, 0); + +int do_ut_optee(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + struct unit_test *tests = ll_entry_start(struct unit_test, + optee_test); + const int n_ents = ll_entry_count(struct unit_test, optee_test); + struct unit_test_state *uts; + void *fdt_optee = &__dtb_test_optee_optee_begin; + void *fdt_no_optee = &__dtb_test_optee_no_optee_begin; + void *fdt_base = &__dtb_test_optee_base_begin; + int ret = -ENOMEM; + + uts = calloc(1, sizeof(*uts)); + if (!uts) + return -ENOMEM; + + ut_assertok(fdt_check_header(fdt_base)); + ut_assertok(fdt_check_header(fdt_optee)); + ut_assertok(fdt_check_header(fdt_no_optee)); + + fdt = malloc(FDT_COPY_SIZE); + if (!fdt) + return ret; + + /* + * Resize the FDT to 4k so that we have room to operate on + * + * (and relocate it since the memory might be mapped + * read-only) + */ + ut_assertok(fdt_open_into(fdt_base, fdt, FDT_COPY_SIZE)); + + /* + * (1) Try to copy optee nodes from empty dt. + * This should still run successfully. + */ + ut_assertok(optee_copy_fdt_nodes(fdt_no_optee, fdt)); + + expect_success = false; + ret = cmd_ut_category("optee", tests, n_ents, argc, argv); + + /* (2) Try to copy optee nodes from prefilled dt */ + ut_assertok(optee_copy_fdt_nodes(fdt_optee, fdt)); + + expect_success = true; + ret = cmd_ut_category("optee", tests, n_ents, argc, argv); + + /* (3) Try to copy OP-TEE nodes into a already filled DT */ + ut_assertok(fdt_open_into(fdt_optee, fdt, FDT_COPY_SIZE)); + ut_assertok(optee_copy_fdt_nodes(fdt_optee, fdt)); + + expect_success = true; + ret = cmd_ut_category("optee", tests, n_ents, argc, argv); + + free(fdt); + return ret; +} diff --git a/test/optee/test-optee-base.dts b/test/optee/test-optee-base.dts new file mode 100644 index 0000000000..3c1d0c60ef --- /dev/null +++ b/test/optee/test-optee-base.dts @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH + */ + +/dts-v1/; + +/ { + #address-cells = <2>; + #size-cells = <2>; +}; + + diff --git a/test/optee/test-optee-no-optee.dts b/test/optee/test-optee-no-optee.dts new file mode 100644 index 0000000000..3c1d0c60ef --- /dev/null +++ b/test/optee/test-optee-no-optee.dts @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH + */ + +/dts-v1/; + +/ { + #address-cells = <2>; + #size-cells = <2>; +}; + + diff --git a/test/optee/test-optee-optee.dts b/test/optee/test-optee-optee.dts new file mode 100644 index 0000000000..11e26a2728 --- /dev/null +++ b/test/optee/test-optee-optee.dts @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH + */ + +/dts-v1/; + +/ { + #address-cells = <2>; + #size-cells = <2>; + + firmware { + optee { + compatible = "linaro,optee-tz"; + method = "smc"; + }; + }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + optee_shm@32000000 { + reg = <0x00 0x32000000 0x00 0x400000>; + }; + + optee_core@30000000 { + reg = <0x00 0x30000000 0x00 0x2000000>; + }; + }; +}; -- 2.25.1