Dirk Mueller
f7b29ac20a
- Fix reboot in UEFI environments (bsc#1047331) * Add grub2-efi-Move-grub_reboot-into-kernel.patch * Refresh grub2-efi-Free-malloc-regions-on-exit.patch OBS-URL: https://build.opensuse.org/request/show/522250 OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=277
123 lines
4.0 KiB
Diff
123 lines
4.0 KiB
Diff
From dee74e9bd88aa31e38b1e77dc7845930aa1cd60f Mon Sep 17 00:00:00 2001
|
|
From: Alexander Graf <agraf@suse.de>
|
|
Subject: [PATCH v7 1/2] efi: Move grub_reboot() into kernel
|
|
|
|
The reboot function calls machine_fini() and then reboots the system.
|
|
Currently it lives in lib/ which means it gets compiled into the
|
|
reboot module which lives on the heap.
|
|
|
|
In a following patch, I want to free the heap on machine_fini()
|
|
though, so we would free the memory that the code is running in. That
|
|
obviously breaks with smarter UEFI implementations.
|
|
|
|
So this patch moves it into the core. That way we ensure that all
|
|
code running after machine_fini() in the UEFI case is running from
|
|
memory that got allocated (and gets deallocated) by the UEFI core.
|
|
|
|
Signed-off-by: Alexander Graf <agraf@suse.de>
|
|
|
|
---
|
|
|
|
v3 -> v4:
|
|
|
|
- Move grub_reboot to kern/efi/efi.c
|
|
---
|
|
grub-core/Makefile.core.def | 4 ----
|
|
grub-core/kern/efi/efi.c | 9 +++++++++
|
|
grub-core/lib/efi/reboot.c | 33 ---------------------------------
|
|
include/grub/misc.h | 3 ++-
|
|
4 files changed, 11 insertions(+), 38 deletions(-)
|
|
delete mode 100644 grub-core/lib/efi/reboot.c
|
|
|
|
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
|
|
index a65c27f7f..1cc4ce374 100644
|
|
--- a/grub-core/Makefile.core.def
|
|
+++ b/grub-core/Makefile.core.def
|
|
@@ -872,10 +872,6 @@ module = {
|
|
name = reboot;
|
|
i386 = lib/i386/reboot.c;
|
|
i386 = lib/i386/reboot_trampoline.S;
|
|
- ia64_efi = lib/efi/reboot.c;
|
|
- x86_64_efi = lib/efi/reboot.c;
|
|
- arm_efi = lib/efi/reboot.c;
|
|
- arm64_efi = lib/efi/reboot.c;
|
|
powerpc_ieee1275 = lib/ieee1275/reboot.c;
|
|
sparc64_ieee1275 = lib/ieee1275/reboot.c;
|
|
mips_arc = lib/mips/arc/reboot.c;
|
|
diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
|
|
index d467785fc..708581fcb 100644
|
|
--- a/grub-core/kern/efi/efi.c
|
|
+++ b/grub-core/kern/efi/efi.c
|
|
@@ -155,6 +155,15 @@ grub_efi_get_loaded_image (grub_efi_handle_t image_handle)
|
|
}
|
|
|
|
void
|
|
+grub_reboot (void)
|
|
+{
|
|
+ grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
|
|
+ efi_call_4 (grub_efi_system_table->runtime_services->reset_system,
|
|
+ GRUB_EFI_RESET_COLD, GRUB_EFI_SUCCESS, 0, NULL);
|
|
+ for (;;) ;
|
|
+}
|
|
+
|
|
+void
|
|
grub_exit (void)
|
|
{
|
|
grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
|
|
diff --git a/grub-core/lib/efi/reboot.c b/grub-core/lib/efi/reboot.c
|
|
deleted file mode 100644
|
|
index 7de8bcb5d..000000000
|
|
--- a/grub-core/lib/efi/reboot.c
|
|
+++ /dev/null
|
|
@@ -1,33 +0,0 @@
|
|
-/*
|
|
- * GRUB -- GRand Unified Bootloader
|
|
- * Copyright (C) 2011 Free Software Foundation, Inc.
|
|
- *
|
|
- * GRUB is free software: you can redistribute it and/or modify
|
|
- * it under the terms of the GNU General Public License as published by
|
|
- * the Free Software Foundation, either version 3 of the License, or
|
|
- * (at your option) any later version.
|
|
- *
|
|
- * GRUB is distributed in the hope that it will be useful,
|
|
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
- * GNU General Public License for more details.
|
|
- *
|
|
- * You should have received a copy of the GNU General Public License
|
|
- * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
- */
|
|
-
|
|
-#include <grub/efi/api.h>
|
|
-#include <grub/efi/efi.h>
|
|
-#include <grub/mm.h>
|
|
-#include <grub/misc.h>
|
|
-#include <grub/kernel.h>
|
|
-#include <grub/loader.h>
|
|
-
|
|
-void
|
|
-grub_reboot (void)
|
|
-{
|
|
- grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
|
|
- efi_call_4 (grub_efi_system_table->runtime_services->reset_system,
|
|
- GRUB_EFI_RESET_COLD, GRUB_EFI_SUCCESS, 0, NULL);
|
|
- for (;;) ;
|
|
-}
|
|
diff --git a/include/grub/misc.h b/include/grub/misc.h
|
|
index 2a9f87cc2..372f009e8 100644
|
|
--- a/include/grub/misc.h
|
|
+++ b/include/grub/misc.h
|
|
@@ -396,7 +396,8 @@ grub_abs (int x)
|
|
}
|
|
|
|
/* Reboot the machine. */
|
|
-#if defined (GRUB_MACHINE_EMU) || defined (GRUB_MACHINE_QEMU_MIPS)
|
|
+#if defined (GRUB_MACHINE_EMU) || defined (GRUB_MACHINE_QEMU_MIPS) || \
|
|
+ defined (GRUB_MACHINE_EFI)
|
|
void EXPORT_FUNC(grub_reboot) (void) __attribute__ ((noreturn));
|
|
#else
|
|
void grub_reboot (void) __attribute__ ((noreturn));
|
|
--
|
|
2.12.3
|
|
|