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03de305ec4
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Stefan Roese <sr@denx.de>
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*/
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#include <image.h>
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#include <log.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <asm/sections.h>
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#include <spl.h>
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#include <lzma/LzmaTypes.h>
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#include <lzma/LzmaDec.h>
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#include <lzma/LzmaTools.h>
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#define LZMA_LEN (1 << 20)
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static void spl_parse_legacy_validate(uintptr_t start, uintptr_t size)
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{
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uintptr_t spl_start = (uintptr_t)_start;
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uintptr_t spl_end = (uintptr_t)&_image_binary_end;
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uintptr_t end = start + size;
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if ((start >= spl_start && start < spl_end) ||
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(end > spl_start && end <= spl_end) ||
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(start < spl_start && end >= spl_end) ||
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(start > end && end > spl_start))
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panic("SPL: Image overlaps SPL\n");
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if (size > CONFIG_SYS_BOOTM_LEN)
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panic("SPL: Image too large\n");
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}
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int spl_parse_legacy_header(struct spl_image_info *spl_image,
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const struct legacy_img_hdr *header)
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{
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u32 header_size = sizeof(struct legacy_img_hdr);
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/* check uImage header CRC */
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if (IS_ENABLED(CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK) &&
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!image_check_hcrc(header)) {
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puts("SPL: Image header CRC check failed!\n");
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return -EINVAL;
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}
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if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
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/*
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* On some system (e.g. powerpc), the load-address and
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* entry-point is located at address 0. We can't load
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* to 0-0x40. So skip header in this case.
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*/
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spl_image->load_addr = image_get_load(header);
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spl_image->entry_point = image_get_ep(header);
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spl_image->size = image_get_data_size(header);
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} else {
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spl_image->entry_point = image_get_ep(header);
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/* Load including the header */
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spl_image->load_addr = image_get_load(header) -
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header_size;
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spl_image->size = image_get_data_size(header) +
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header_size;
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}
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#ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
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/* store uImage data length and CRC to check later */
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spl_image->dcrc_data = image_get_load(header);
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spl_image->dcrc_length = image_get_data_size(header);
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spl_image->dcrc = image_get_dcrc(header);
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#endif
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spl_image->os = image_get_os(header);
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spl_image->name = image_get_name(header);
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debug(SPL_TPL_PROMPT
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"payload image: %32s load addr: 0x%lx size: %d\n",
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spl_image->name, spl_image->load_addr, spl_image->size);
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spl_parse_legacy_validate(spl_image->load_addr, spl_image->size);
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spl_parse_legacy_validate(spl_image->entry_point, 0);
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return 0;
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}
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int spl_load_legacy_lzma(struct spl_image_info *spl_image,
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struct spl_load_info *load, ulong offset)
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{
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SizeT lzma_len = LZMA_LEN;
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void *src;
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ulong dataptr, overhead, size;
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int ret;
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/* dataptr points to compressed payload */
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dataptr = ALIGN_DOWN(sizeof(struct legacy_img_hdr),
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spl_get_bl_len(load));
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overhead = sizeof(struct legacy_img_hdr) - dataptr;
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size = ALIGN(spl_image->size + overhead, spl_get_bl_len(load));
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dataptr += offset;
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debug("LZMA: Decompressing %08lx to %08lx\n",
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dataptr, spl_image->load_addr);
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src = malloc(size);
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if (!src) {
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printf("Unable to allocate %d bytes for LZMA\n",
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spl_image->size);
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return -ENOMEM;
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}
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load->read(load, dataptr, size, src);
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ret = lzmaBuffToBuffDecompress(map_sysmem(spl_image->load_addr,
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spl_image->size), &lzma_len,
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src + overhead, spl_image->size);
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if (ret) {
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printf("LZMA decompression error: %d\n", ret);
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return ret;
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}
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spl_image->size = lzma_len;
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return 0;
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}
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