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-rw-r--r--include/grub/i386/multiboot.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/include/grub/i386/multiboot.h b/include/grub/i386/multiboot.h
new file mode 100644
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+++ b/include/grub/i386/multiboot.h
@@ -0,0 +1,58 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2002,2003,2004,2007,2008,2009 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/>.
+ */
+
+#ifndef GRUB_MULTIBOOT_CPU_HEADER
+#define GRUB_MULTIBOOT_CPU_HEADER 1
+
+#define MULTIBOOT2_INITIAL_STATE { .eax = MULTIBOOT2_BOOTLOADER_MAGIC, \
+ .ecx = 0, \
+ .edx = 0, \
+ /* Set esp to some random location in low memory to avoid breaking */ \
+ /* non-compliant kernels. */ \
+ .esp = 0x7ff00 \
+ }
+#define MULTIBOOT_INITIAL_STATE { .eax = MULTIBOOT_BOOTLOADER_MAGIC, \
+ .ecx = 0, \
+ .edx = 0, \
+ /* Set esp to some random location in low memory to avoid breaking */ \
+ /* non-compliant kernels. */ \
+ .esp = 0x7ff00 \
+ }
+#define MULTIBOOT_ENTRY_REGISTER eip
+#define MULTIBOOT_MBI_REGISTER ebx
+#define MULTIBOOT2_ARCHITECTURE_CURRENT MULTIBOOT2_ARCHITECTURE_I386
+
+#ifdef GRUB_MACHINE_EFI
+#ifdef __x86_64__
+#define MULTIBOOT_EFI_INITIAL_STATE { .rax = MULTIBOOT_BOOTLOADER_MAGIC, \
+ .rcx = 0, \
+ .rdx = 0, \
+ }
+#define MULTIBOOT2_EFI_INITIAL_STATE { .rax = MULTIBOOT2_BOOTLOADER_MAGIC, \
+ .rcx = 0, \
+ .rdx = 0, \
+ }
+#define MULTIBOOT_EFI_ENTRY_REGISTER rip
+#define MULTIBOOT_EFI_MBI_REGISTER rbx
+#endif
+#endif
+
+#define MULTIBOOT_ELF32_MACHINE EM_386
+#define MULTIBOOT_ELF64_MACHINE EM_X86_64
+
+#endif /* ! GRUB_MULTIBOOT_CPU_HEADER */