7e52d6ccfb
Sughosh Ganu <sughosh.ganu@linaro.org> says: The following patch series adds support for version 2 of the FWU metadata. The version 2 metadata structure is defined in the latest revision of the FWU specification [1]. The earlier versions of these patches were migrating to a version 2 only support in U-Boot, similar to TF-A. However, based on feedback from ST [2], this series has been updated to support both versions. A platform would still be needed to enable one of the two versions of metadata through a config symbol. TF-A has code which reads the FWU metadata and boots the platform from the active partition. TF-A has decided to migrate the FWU code to a version 2 only support. These changes have been merged in upstream TF-A. These changes have been tested on the ST DK2 board, which uses the GPT based partitioning scheme. Both V1 and V2 metadata versions have been tested on the DK2 board. These changes need to be tested on platforms with MTD partitioned storage devices.
147 lines
3.1 KiB
C
147 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2022, Linaro Limited
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* Copyright (c) 2022, Heinrich Schuchardt <xypron.glpk@gmx.de>
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*/
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#include <blk.h>
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#include <dm.h>
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#include <fwu.h>
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#include <fwu_mdata.h>
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#include <log.h>
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#include <malloc.h>
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#include <memalign.h>
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#include <part.h>
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#include <dm/test.h>
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#include <test/ut.h>
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#include "fwu_mdata_disk_image.h"
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/* Block size of compressed disk image */
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#define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8
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static struct udevice *mmc_dev;
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static struct blk_desc *dev_desc;
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/* One 8 byte block of the compressed disk image */
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struct line {
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size_t addr;
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char *line;
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};
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/* Compressed disk image */
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struct compressed_disk_image {
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size_t length;
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struct line lines[];
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};
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static const struct compressed_disk_image img = FWU_MDATA_DISK_IMG;
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/* Decompressed disk image */
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static u8 *image;
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static int setup_blk_device(struct unit_test_state *uts)
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{
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ut_assertok(uclass_get_device(UCLASS_MMC, 0, &mmc_dev));
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ut_assertok(blk_get_device_by_str("mmc", "0", &dev_desc));
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return 0;
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}
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static int populate_mmc_disk_image(struct unit_test_state *uts)
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{
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u8 *buf;
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size_t i;
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size_t addr;
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size_t len;
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buf = malloc(img.length);
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if (!buf)
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return -ENOMEM;
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memset(buf, 0, img.length);
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for (i = 0; ; i++) {
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if (!img.lines[i].line)
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break;
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addr = img.lines[i].addr;
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len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE;
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if (addr + len > img.length)
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len = img.length - addr;
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memcpy(buf + addr, img.lines[i].line, len);
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}
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image = buf;
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return 0;
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}
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static int write_mmc_blk_device(struct unit_test_state *uts)
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{
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lbaint_t blkcnt;
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blkcnt = BLOCK_CNT(img.length, dev_desc);
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ut_asserteq(blkcnt, blk_dwrite(dev_desc, 0, blkcnt, image));
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return 0;
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}
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static int dm_test_fwu_mdata_read(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct fwu_mdata mdata = { 0 };
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ut_assertok(setup_blk_device(uts));
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ut_assertok(populate_mmc_disk_image(uts));
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ut_assertok(write_mmc_blk_device(uts));
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/*
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* Trigger lib/fwu_updates/fwu.c fwu_boottime_checks()
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* to populate g_dev global pointer in that library.
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*/
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event_notify_null(EVT_MAIN_LOOP);
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ut_assertok(uclass_first_device_err(UCLASS_FWU_MDATA, &dev));
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ut_assertok(fwu_init());
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ut_assertok(fwu_get_mdata(&mdata));
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ut_asserteq(mdata.version, 0x1);
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return 0;
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}
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DM_TEST(dm_test_fwu_mdata_read, UT_TESTF_SCAN_FDT);
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static int dm_test_fwu_mdata_write(struct unit_test_state *uts)
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{
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u32 active_idx;
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struct udevice *dev;
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struct fwu_mdata mdata = { 0 };
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ut_assertok(setup_blk_device(uts));
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ut_assertok(populate_mmc_disk_image(uts));
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ut_assertok(write_mmc_blk_device(uts));
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/*
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* Trigger lib/fwu_updates/fwu.c fwu_boottime_checks()
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* to populate g_dev global pointer in that library.
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*/
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event_notify_null(EVT_MAIN_LOOP);
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ut_assertok(uclass_first_device_err(UCLASS_FWU_MDATA, &dev));
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ut_assertok(fwu_init());
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ut_assertok(fwu_get_mdata(&mdata));
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active_idx = (mdata.active_index + 1) % CONFIG_FWU_NUM_BANKS;
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ut_assertok(fwu_set_active_index(active_idx));
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ut_assertok(fwu_get_mdata(&mdata));
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ut_asserteq(mdata.active_index, active_idx);
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return 0;
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}
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DM_TEST(dm_test_fwu_mdata_write, UT_TESTF_SCAN_FDT);
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