2f96033923
Pull request efi-2024-10-rc1
Documentation:
Update requirements.txt to use current Python module versions
Add a page describing debugging U-Boot with GDB
FIT: describe data-size as a conditionally mandatory property
Correct link to FIT specification in SPL code.
Correct kaslrseed command long text description
UEFI:
Add unit test checking that don't have kaslr-seed when measuring boot
Deduplicate code for measured boot.
Other:
Print size information in fwu command
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* The 'kaslrseed' command takes bytes from the hardware random number
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* generator and uses them to set the kaslr-seed value in the chosen node.
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*
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* Copyright (c) 2021, Chris Morgan <macromorgan@hotmail.com>
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*/
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#include <command.h>
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#include <dm.h>
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#include <hexdump.h>
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#include <malloc.h>
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#include <rng.h>
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#include <fdt_support.h>
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static int do_kaslr_seed(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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int err = CMD_RET_SUCCESS;
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printf("Notice: a /chosen/kaslr-seed is automatically added to the device-tree when booted via booti/bootm/bootz therefore using this command is likely no longer needed\n");
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if (!working_fdt) {
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printf("No FDT memory address configured. Please configure\n"
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"the FDT address via \"fdt addr <address>\" command.\n"
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"Aborting!\n");
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err = CMD_RET_FAILURE;
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} else {
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if (fdt_kaslrseed(working_fdt, true) < 0)
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err = CMD_RET_FAILURE;
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}
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return cmd_process_error(cmdtp, err);
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}
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U_BOOT_LONGHELP(kaslrseed,
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"\n"
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" - append random bytes to chosen kaslr-seed node\n");
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U_BOOT_CMD(
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kaslrseed, 1, 0, do_kaslr_seed,
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"feed bytes from the hardware random number generator to the kaslr-seed",
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kaslrseed_help_text
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);
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