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>
31 lines
599 B
C
31 lines
599 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <asm/csr.h>
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#include <linux/processor.h>
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#include "pi.h"
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/*
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* To avoid rewriting code include asm/archrandom.h and create macros
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* for the functions that won't be included.
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*/
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#undef riscv_has_extension_unlikely
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#define riscv_has_extension_likely(...) false
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#undef pr_err_once
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#define pr_err_once(...)
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#include <asm/archrandom.h>
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u64 get_kaslr_seed_zkr(const uintptr_t dtb_pa)
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{
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unsigned long seed = 0;
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if (!fdt_early_match_extension_isa((const void *)dtb_pa, "zkr"))
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return 0;
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if (!csr_seed_long(&seed))
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return 0;
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return seed;
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}
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