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https://github.com/ARM-software/arm-trusted-firmware.git
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eab78e9ba4
Subsequent patches will provide a solution to do the BL2 hash measurement and recording in BL1 itself, hence in preparation to adopt that solution remove the logic of passing BL2 hash measurement to BL2 component via TB_FW config. Change-Id: Iff9b3d4c6a236a33b942898fcdf799cbab89b724 Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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* Copyright (c) 2019-2021, Arm Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <common/fdt_wrappers.h>
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#include <lib/fconf/fconf_tbbr_getter.h>
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#include <libfdt.h>
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struct tbbr_dyn_config_t tbbr_dyn_config;
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int fconf_populate_tbbr_dyn_config(uintptr_t config)
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{
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int err;
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int node;
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uint64_t val64;
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uint32_t val32;
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/* As libfdt use void *, we can't avoid this cast */
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const void *dtb = (void *)config;
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/* Assert the node offset point to "arm,tb_fw" compatible property */
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const char *compatible_str = "arm,tb_fw";
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node = fdt_node_offset_by_compatible(dtb, -1, compatible_str);
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if (node < 0) {
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ERROR("FCONF: Can't find `%s` compatible in dtb\n",
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compatible_str);
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return node;
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}
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/* Locate the disable_auth cell and read the value */
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err = fdt_read_uint32(dtb, node, "disable_auth",
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&tbbr_dyn_config.disable_auth);
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if (err < 0) {
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WARN("FCONF: Read %s failed for `%s`\n",
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"cell", "disable_auth");
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return err;
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}
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/* Check if the value is boolean */
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if ((tbbr_dyn_config.disable_auth != 0U) &&
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(tbbr_dyn_config.disable_auth != 1U)) {
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WARN("Invalid value for `%s` cell %d\n",
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"disable_auth", tbbr_dyn_config.disable_auth);
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return -1;
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}
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#if defined(DYN_DISABLE_AUTH)
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if (tbbr_dyn_config.disable_auth == 1)
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dyn_disable_auth();
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#endif
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/* Retrieve the Mbed TLS heap details from the DTB */
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err = fdt_read_uint64(dtb, node, "mbedtls_heap_addr", &val64);
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if (err < 0) {
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ERROR("FCONF: Read %s failed for `%s`\n",
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"cell", "mbedtls_heap_addr");
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return err;
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}
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tbbr_dyn_config.mbedtls_heap_addr = (void *)(uintptr_t)val64;
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err = fdt_read_uint32(dtb, node, "mbedtls_heap_size", &val32);
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if (err < 0) {
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ERROR("FCONF: Read %s failed for `%s`\n",
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"cell", "mbedtls_heap_size");
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return err;
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}
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tbbr_dyn_config.mbedtls_heap_size = val32;
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VERBOSE("%s%s%s %d\n", "FCONF: `tbbr.", "disable_auth",
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"` cell found with value =", tbbr_dyn_config.disable_auth);
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VERBOSE("%s%s%s %p\n", "FCONF: `tbbr.", "mbedtls_heap_addr",
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"` cell found with value =", tbbr_dyn_config.mbedtls_heap_addr);
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VERBOSE("%s%s%s %zu\n", "FCONF: `tbbr.", "mbedtls_heap_size",
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"` cell found with value =", tbbr_dyn_config.mbedtls_heap_size);
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return 0;
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}
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FCONF_REGISTER_POPULATOR(TB_FW, tbbr, fconf_populate_tbbr_dyn_config);
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