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Groups > linux.kernel > #1649685
| From | David Howells <dhowells@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/5] efi: Add EFI_SECURE_BOOT bit |
| Date | 2017-05-24 16:50 +0200 |
| Message-ID | <tKFLR-3z2-33@gated-at.bofh.it> (permalink) |
| References | <tKFLQ-3z2-5@gated-at.bofh.it> |
| Organization | Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 |
From: Josh Boyer <jwboyer@fedoraproject.org>
UEFI machines can be booted in Secure Boot mode. Add a EFI_SECURE_BOOT bit
that can be passed to efi_enabled() to find out whether secure boot is
enabled.
This will be used by the SysRq+x handler, registered by the x86 arch, to
find out whether secure boot mode is enabled so that it can be disabled.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-efi@vger.kernel.org
---
drivers/firmware/efi/secureboot.c | 1 +
include/linux/efi.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c
index cf5bccae15e8..730518061a14 100644
--- a/drivers/firmware/efi/secureboot.c
+++ b/drivers/firmware/efi/secureboot.c
@@ -24,6 +24,7 @@ void __init efi_set_secure_boot(enum efi_secureboot_mode mode)
pr_info("Secure boot disabled\n");
break;
case efi_secureboot_mode_enabled:
+ set_bit(EFI_SECURE_BOOT, &efi.flags);
pr_info("Secure boot enabled\n");
break;
default:
diff --git a/include/linux/efi.h b/include/linux/efi.h
index e2f53edccf15..5e9a2d7df089 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1081,6 +1081,7 @@ extern int __init efi_setup_pcdp_console(char *);
#define EFI_DBG 8 /* Print additional debug info at runtime */
#define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */
#define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
+#define EFI_SECURE_BOOT 11 /* Are we in Secure Boot mode? */
#ifdef CONFIG_EFI
/*
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[PATCH 0/5] security, efi: Set lockdown if in secure boot mode David Howells <dhowells@redhat.com> - 2017-05-24 16:50 +0200
[PATCH 5/5] Add a sysrq option to exit secure boot mode David Howells <dhowells@redhat.com> - 2017-05-24 16:50 +0200
Re: [PATCH 5/5] Add a sysrq option to exit secure boot mode joeyli <jlee@suse.com> - 2017-05-27 06:30 +0200
Re: [PATCH 5/5] Add a sysrq option to exit secure boot mode James Morris <jmorris@namei.org> - 2017-05-30 12:50 +0200
[PATCH 3/5] Add the ability to lock down access to the running kernel image David Howells <dhowells@redhat.com> - 2017-05-24 16:50 +0200
Re: [PATCH 3/5] Add the ability to lock down access to the running kernel image Casey Schaufler <casey@schaufler-ca.com> - 2017-05-24 17:40 +0200
Re: [PATCH 3/5] Add the ability to lock down access to the running kernel image David Howells <dhowells@redhat.com> - 2017-05-25 09:00 +0200
Re: [PATCH 3/5] Add the ability to lock down access to the running kernel image Casey Schaufler <casey@schaufler-ca.com> - 2017-05-25 20:20 +0200
Re: [PATCH 3/5] Add the ability to lock down access to the running kernel image David Howells <dhowells@redhat.com> - 2017-05-26 14:50 +0200
Re: [PATCH 3/5] Add the ability to lock down access to the running kernel image joeyli <jlee@suse.com> - 2017-05-26 19:10 +0200
Re: [PATCH 3/5] Add the ability to lock down access to the running kernel image joeyli <jlee@suse.com> - 2017-05-26 10:20 +0200
[PATCH 2/5] efi: Add EFI_SECURE_BOOT bit David Howells <dhowells@redhat.com> - 2017-05-24 16:50 +0200
Re: [PATCH 2/5] efi: Add EFI_SECURE_BOOT bit joeyli <jlee@suse.com> - 2017-05-26 10:10 +0200
[PATCH 1/5] efi: Move the x86 secure boot switch to generic code David Howells <dhowells@redhat.com> - 2017-05-24 16:50 +0200
Re: [PATCH 1/5] efi: Move the x86 secure boot switch to generic code joeyli <jlee@suse.com> - 2017-05-26 10:10 +0200
Re: [PATCH 0/5] security, efi: Set lockdown if in secure boot mode Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-05-30 21:00 +0200
Re: [PATCH 0/5] security, efi: Set lockdown if in secure boot mode David Howells <dhowells@redhat.com> - 2017-05-31 11:30 +0200
Re: [PATCH 0/5] security, efi: Set lockdown if in secure boot mode Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-05-31 13:40 +0200
Re: [PATCH 0/5] security, efi: Set lockdown if in secure boot mode David Howells <dhowells@redhat.com> - 2017-05-31 15:40 +0200
Re: [PATCH 0/5] security, efi: Set lockdown if in secure boot mode Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-05-31 16:10 +0200
Re: [PATCH 0/5] security, efi: Set lockdown if in secure boot mode David Howells <dhowells@redhat.com> - 2017-06-06 11:40 +0200
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