Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
40 lines
883 B
C
40 lines
883 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2020 ARM Limited
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/auxv.h>
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#include "helper.h"
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int main(void)
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{
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struct signatures signed_vals;
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unsigned long hwcaps;
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size_t val;
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size_t size = fread(&val, sizeof(size_t), 1, stdin);
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if (size != 1) {
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fprintf(stderr, "Could not read input from stdin\n");
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return EXIT_FAILURE;
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}
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/* don't try to execute illegal (unimplemented) instructions) caller
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* should have checked this and keep worker simple
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*/
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hwcaps = getauxval(AT_HWCAP);
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if (hwcaps & HWCAP_PACA) {
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signed_vals.keyia = keyia_sign(val);
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signed_vals.keyib = keyib_sign(val);
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signed_vals.keyda = keyda_sign(val);
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signed_vals.keydb = keydb_sign(val);
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}
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signed_vals.keyg = (hwcaps & HWCAP_PACG) ? keyg_sign(val) : 0;
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fwrite(&signed_vals, sizeof(struct signatures), 1, stdout);
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return 0;
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}
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