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-rw-r--r--SOURCES/0001-efi-Add-an-EFI_SECURE_BOOT-flag-to-indicate-secure-b.patch161
1 files changed, 0 insertions, 161 deletions
diff --git a/SOURCES/0001-efi-Add-an-EFI_SECURE_BOOT-flag-to-indicate-secure-b.patch b/SOURCES/0001-efi-Add-an-EFI_SECURE_BOOT-flag-to-indicate-secure-b.patch
deleted file mode 100644
index c3e0650..0000000
--- a/SOURCES/0001-efi-Add-an-EFI_SECURE_BOOT-flag-to-indicate-secure-b.patch
+++ /dev/null
@@ -1,161 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: David Howells <dhowells@redhat.com>
-Date: Tue, 27 Feb 2018 10:04:55 +0000
-Subject: [PATCH] efi: Add an EFI_SECURE_BOOT flag to indicate secure boot mode
-
-UEFI machines can be booted in Secure Boot mode. Add an EFI_SECURE_BOOT
-flag that can be passed to efi_enabled() to find out whether secure boot is
-enabled.
-
-Move the switch-statement in x86's setup_arch() that inteprets the
-secure_boot boot parameter to generic code and set the bit there.
-
-Upstream Status: RHEL only
-Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
-Signed-off-by: David Howells <dhowells@redhat.com>
-Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
-cc: linux-efi@vger.kernel.org
-[Rebased for context; efi_is_table_address was moved to arch/x86]
-Signed-off-by: Jeremy Cline <jcline@redhat.com>
----
- arch/x86/kernel/setup.c | 14 +-----------
- drivers/firmware/efi/Makefile | 1 +
- drivers/firmware/efi/secureboot.c | 38 +++++++++++++++++++++++++++++++
- include/linux/efi.h | 18 ++++++++++-----
- 4 files changed, 52 insertions(+), 19 deletions(-)
- create mode 100644 drivers/firmware/efi/secureboot.c
-
-diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
-index 112efbef3414..c9de4b36ca51 100644
---- a/arch/x86/kernel/setup.c
-+++ b/arch/x86/kernel/setup.c
-@@ -1255,19 +1255,7 @@ void __init setup_arch(char **cmdline_p)
- /* Allocate bigger log buffer */
- setup_log_buf(1);
-
-- if (efi_enabled(EFI_BOOT)) {
-- switch (boot_params.secure_boot) {
-- case efi_secureboot_mode_disabled:
-- pr_info("Secure boot disabled\n");
-- break;
-- case efi_secureboot_mode_enabled:
-- pr_info("Secure boot enabled\n");
-- break;
-- default:
-- pr_info("Secure boot could not be determined\n");
-- break;
-- }
-- }
-+ efi_set_secure_boot(boot_params.secure_boot);
-
- reserve_initrd();
-
-diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
-index 7a216984552b..f0ef02d733af 100644
---- a/drivers/firmware/efi/Makefile
-+++ b/drivers/firmware/efi/Makefile
-@@ -25,6 +25,7 @@ obj-$(CONFIG_EFI_FAKE_MEMMAP) += fake_map.o
- obj-$(CONFIG_EFI_BOOTLOADER_CONTROL) += efibc.o
- obj-$(CONFIG_EFI_TEST) += test/
- obj-$(CONFIG_EFI_DEV_PATH_PARSER) += dev-path-parser.o
-+obj-$(CONFIG_EFI) += secureboot.o
- obj-$(CONFIG_APPLE_PROPERTIES) += apple-properties.o
- obj-$(CONFIG_EFI_RCI2_TABLE) += rci2-table.o
- obj-$(CONFIG_EFI_EMBEDDED_FIRMWARE) += embedded-firmware.o
-diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c
-new file mode 100644
-index 000000000000..de0a3714a5d4
---- /dev/null
-+++ b/drivers/firmware/efi/secureboot.c
-@@ -0,0 +1,38 @@
-+/* Core kernel secure boot support.
-+ *
-+ * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
-+ * Written by David Howells (dhowells@redhat.com)
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public Licence
-+ * as published by the Free Software Foundation; either version
-+ * 2 of the Licence, or (at your option) any later version.
-+ */
-+
-+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-+
-+#include <linux/efi.h>
-+#include <linux/kernel.h>
-+#include <linux/printk.h>
-+
-+/*
-+ * Decide what to do when UEFI secure boot mode is enabled.
-+ */
-+void __init efi_set_secure_boot(enum efi_secureboot_mode mode)
-+{
-+ if (efi_enabled(EFI_BOOT)) {
-+ switch (mode) {
-+ case efi_secureboot_mode_disabled:
-+ 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:
-+ pr_warn("Secure boot could not be determined (mode %u)\n",
-+ mode);
-+ break;
-+ }
-+ }
-+}
-diff --git a/include/linux/efi.h b/include/linux/efi.h
-index 92aa4697f558..1cdc5d8b6ac3 100644
---- a/include/linux/efi.h
-+++ b/include/linux/efi.h
-@@ -785,6 +785,14 @@ extern int __init efi_setup_pcdp_console(char *);
- #define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
- #define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */
- #define EFI_PRESERVE_BS_REGIONS 12 /* Are EFI boot-services memory segments available? */
-+#define EFI_SECURE_BOOT 13 /* Are we in Secure Boot mode? */
-+
-+enum efi_secureboot_mode {
-+ efi_secureboot_mode_unset,
-+ efi_secureboot_mode_unknown,
-+ efi_secureboot_mode_disabled,
-+ efi_secureboot_mode_enabled,
-+};
-
- #ifdef CONFIG_EFI
- /*
-@@ -796,6 +804,8 @@ static inline bool efi_enabled(int feature)
- }
- extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
-
-+extern void __init efi_set_secure_boot(enum efi_secureboot_mode mode);
-+
- bool __pure __efi_soft_reserve_enabled(void);
-
- static inline bool __pure efi_soft_reserve_enabled(void)
-@@ -822,6 +832,8 @@ efi_capsule_pending(int *reset_type)
- return false;
- }
-
-+static inline void efi_set_secure_boot(enum efi_secureboot_mode mode) {}
-+
- static inline bool efi_soft_reserve_enabled(void)
- {
- return false;
-@@ -1094,12 +1106,6 @@ static inline bool efi_runtime_disabled(void) { return true; }
- extern void efi_call_virt_check_flags(unsigned long flags, const char *call);
- extern unsigned long efi_call_virt_save_flags(void);
-
--enum efi_secureboot_mode {
-- efi_secureboot_mode_unset,
-- efi_secureboot_mode_unknown,
-- efi_secureboot_mode_disabled,
-- efi_secureboot_mode_enabled,
--};
- enum efi_secureboot_mode efi_get_secureboot(void);
-
- #ifdef CONFIG_RESET_ATTACK_MITIGATION
---
-2.28.0
-