As an example of an SPL test, add a new test for loading a FIT within SPL. This runs on sandbox_spl. For this to work, the text base is adjusted so that there is plenty of space available.
While we are here, document struct spl_load_info properly, since this is currently ambiguous.
This test only verifies the logic path. It does not actually check that the image is loaded correctly. It is not possible for sandbox's SPL to actually run u-boot.img since it currently includes u-boot.bin rather than u-boot. Further work could expand the test in that direction.
The need for this was noted at:
http://patchwork.ozlabs.org/project/uboot/patch/20201216000944.2832585-3-mr....
Signed-off-by: Simon Glass sjg@chromium.org ---
(no changes since v1)
configs/sandbox_spl_defconfig | 2 +- doc/arch/sandbox.rst | 4 +- include/spl.h | 9 ++++ test/Makefile | 1 + test/image/Makefile | 5 ++ test/image/spl_load.c | 91 +++++++++++++++++++++++++++++++++++ 6 files changed, 110 insertions(+), 2 deletions(-) create mode 100644 test/image/Makefile create mode 100644 test/image/spl_load.c
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig index c0118702a81..2696d0b6cdd 100644 --- a/configs/sandbox_spl_defconfig +++ b/configs/sandbox_spl_defconfig @@ -1,4 +1,4 @@ -CONFIG_SYS_TEXT_BASE=0 +CONFIG_SYS_TEXT_BASE=0x200000 CONFIG_SPL_LIBCOMMON_SUPPORT=y CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_NR_DRAM_BANKS=1 diff --git a/doc/arch/sandbox.rst b/doc/arch/sandbox.rst index 60ee1e0741a..1ccb5344ac6 100644 --- a/doc/arch/sandbox.rst +++ b/doc/arch/sandbox.rst @@ -537,5 +537,7 @@ Addr Config Usage e000 CONFIG_BLOBLIST_ADDR Blob list 10000 CONFIG_MALLOC_F_ADDR Early memory allocation f0000 CONFIG_PRE_CON_BUF_ADDR Pre-console buffer - 100000 CONFIG_TRACE_EARLY_ADDR Early trace buffer (if enabled) + 100000 CONFIG_TRACE_EARLY_ADDR Early trace buffer (if enabled). Also used + as the SPL load buffer in spl_test_load(). + 200000 CONFIG_SYS_TEXT_BASE Load buffer for U-Boot (sandbox_spl only) ======= ======================== =============================== diff --git a/include/spl.h b/include/spl.h index 0d134587de2..4f6e0e53f5d 100644 --- a/include/spl.h +++ b/include/spl.h @@ -222,6 +222,15 @@ struct spl_load_info { void *priv; int bl_len; const char *filename; + /** + * read() - Read from device + * + * @load: Information about the load state + * @sector: Sector number to read from (each @load->bl_len bytes) + * @count: Number of sectors to read + * @buf: Buffer to read into + * @return number of sectors read, 0 on error + */ ulong (*read)(struct spl_load_info *load, ulong sector, ulong count, void *buf); }; diff --git a/test/Makefile b/test/Makefile index 5cd284e322e..a26e915e050 100644 --- a/test/Makefile +++ b/test/Makefile @@ -3,6 +3,7 @@ # (C) Copyright 2012 The Chromium Authors
obj-y += test-main.o +obj-$(CONFIG_SANDBOX) += image/
ifneq ($(CONFIG_$(SPL_)BLOBLIST),) obj-$(CONFIG_$(SPL_)CMDLINE) += bloblist.o diff --git a/test/image/Makefile b/test/image/Makefile new file mode 100644 index 00000000000..c4039df707f --- /dev/null +++ b/test/image/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright 2021 Google LLC + +obj-$(CONFIG_SPL_BUILD) += spl_load.o diff --git a/test/image/spl_load.c b/test/image/spl_load.c new file mode 100644 index 00000000000..851603ddd75 --- /dev/null +++ b/test/image/spl_load.c @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2021 Google LLC + * Written by Simon Glass sjg@chromium.org + */ + +#include <common.h> +#include <image.h> +#include <mapmem.h> +#include <os.h> +#include <spl.h> +#include <test/ut.h> + +/* Declare a new SPL test */ +#define SPL_TEST(_name, _flags) UNIT_TEST(_name, _flags, spl_test) + +/* Context used for this test */ +struct text_ctx { + int fd; +}; + +static ulong read_fit_image(struct spl_load_info *load, ulong sector, + ulong count, void *buf) +{ + struct text_ctx *text_ctx = load->priv; + off_t offset, ret; + ssize_t res; + + offset = sector * load->bl_len; + ret = os_lseek(text_ctx->fd, offset, OS_SEEK_SET); + if (ret != offset) { + printf("Failed to seek to %zx, got %zx (errno=%d)\n", offset, + ret, errno); + return 0; + } + + res = os_read(text_ctx->fd, buf, count * load->bl_len); + if (res == -1) { + printf("Failed to read %lx bytes, got %ld (errno=%d)\n", + count * load->bl_len, res, errno); + return 0; + } + + return count; +} + +int board_fit_config_name_match(const char *name) +{ + return 0; +} + +struct image_header *spl_get_load_buffer(ssize_t offset, size_t size) +{ + return map_sysmem(0x100000, 0); +} + +static int spl_test_load(struct unit_test_state *uts) +{ + struct spl_image_info image; + struct image_header *header; + struct text_ctx text_ctx; + struct spl_load_info load; + char fname[256]; + int ret; + int fd; + + memset(&load, '\0', sizeof(load)); + load.bl_len = 512; + load.read = read_fit_image; + + ret = os_find_u_boot(fname, sizeof(fname), true); + if (ret) { + printf("(%s not found, error %d)\n", fname, ret); + return ret; + } + load.filename = fname; + + header = spl_get_load_buffer(-sizeof(*header), sizeof(*header)); + + fd = os_open(fname, OS_O_RDONLY); + ut_assert(fd >= 0); + ut_asserteq(512, os_read(fd, header, 512)); + text_ctx.fd = fd; + + load.priv = &text_ctx; + + ut_assertok(spl_load_simple_fit(&image, &load, 0, header)); + + return 0; +} +SPL_TEST(spl_test_load, 0);