39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/* Core kernel secure boot support.
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*
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* Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/efi.h>
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#include <linux/kernel.h>
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#include <linux/printk.h>
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/*
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* Decide what to do when UEFI secure boot mode is enabled.
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*/
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void __init efi_set_secure_boot(enum efi_secureboot_mode mode)
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{
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if (efi_enabled(EFI_BOOT)) {
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switch (mode) {
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case efi_secureboot_mode_disabled:
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pr_info("Secure boot disabled\n");
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break;
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case efi_secureboot_mode_enabled:
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set_bit(EFI_SECURE_BOOT, &efi.flags);
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pr_info("Secure boot enabled\n");
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break;
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default:
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pr_warning("Secure boot could not be determined (mode %u)\n",
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mode);
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break;
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}
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}
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}
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