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-rw-r--r--src/include/cpu/x86/multiboot.h175
1 files changed, 175 insertions, 0 deletions
diff --git a/src/include/cpu/x86/multiboot.h b/src/include/cpu/x86/multiboot.h
new file mode 100644
index 0000000000..74fac15153
--- /dev/null
+++ b/src/include/cpu/x86/multiboot.h
@@ -0,0 +1,175 @@
+/* multiboot.h - multiboot header file. */
+/*
+ * Copyright (C) 2003 Free Software Foundation, Inc.
+ * Copyright (C) 2008 Robert Millan
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MULTIBOOT_H
+#define MULTIBOOT_H
+
+#include <stdint.h>
+
+/* How many bytes from the start of the file we search for the header. */
+#define MB_SEARCH 8192
+
+/* The magic field should contain this. */
+#define MB_MAGIC 0x1BADB002
+
+/* This should be in %eax. */
+#define MB_MAGIC2 0x2BADB002
+
+/* The bits in the required part of flags field we don't support. */
+#define MB_UNSUPPORTED 0x0000fffc
+
+/* Alignment of multiboot modules. */
+#define MB_MOD_ALIGN 0x00001000
+
+/*
+ * Flags set in the 'flags' member of the multiboot header.
+ */
+
+/* Align all boot modules on i386 page (4KB) boundaries. */
+#define MB_PAGE_ALIGN 0x00000001
+
+/* Must pass memory information to OS. */
+#define MB_MEMORY_INFO 0x00000002
+
+/* Must pass video information to OS. */
+#define MB_VIDEO_MODE 0x00000004
+
+/* This flag indicates the use of the address fields in the header. */
+#define MB_AOUT_KLUDGE 0x00010000
+
+/*
+ * Flags to be set in the 'flags' member of the multiboot info structure.
+ */
+
+/* is there basic lower/upper memory information? */
+#define MB_INFO_MEMORY 0x00000001
+/* is there a boot device set? */
+#define MB_INFO_BOOTDEV 0x00000002
+/* is the command-line defined? */
+#define MB_INFO_CMDLINE 0x00000004
+/* are there modules to do something with? */
+#define MB_INFO_MODS 0x00000008
+
+/* These next two are mutually exclusive */
+
+/* is there a symbol table loaded? */
+#define MB_INFO_AOUT_SYMS 0x00000010
+/* is there an ELF section header table? */
+#define MB_INFO_ELF_SHDR 0x00000020
+
+/* is there a full memory map? */
+#define MB_INFO_MEM_MAP 0x00000040
+
+/* Is there drive info? */
+#define MB_INFO_DRIVE_INFO 0x00000080
+
+/* Is there a config table? */
+#define MB_INFO_CONFIG_TABLE 0x00000100
+
+/* Is there a boot loader name? */
+#define MB_INFO_BOOT_LOADER_NAME 0x00000200
+
+/* Is there a APM table? */
+#define MB_INFO_APM_TABLE 0x00000400
+
+/* Is there video information? */
+#define MB_INFO_VIDEO_INFO 0x00000800
+
+struct multiboot_header {
+ /* Must be MB_MAGIC - see above. */
+ uint32_t magic;
+
+ /* Feature flags. */
+ uint32_t flags;
+
+ /* The above fields plus this one must equal 0 mod 2^32. */
+ uint32_t checksum;
+
+ /* These are only valid if MB_AOUT_KLUDGE is set. */
+ uint32_t header_addr;
+ uint32_t load_addr;
+ uint32_t load_end_addr;
+ uint32_t bss_end_addr;
+ uint32_t entry_addr;
+
+ /* These are only valid if MB_VIDEO_MODE is set. */
+ uint32_t mode_type;
+ uint32_t width;
+ uint32_t height;
+ uint32_t depth;
+};
+
+struct multiboot_info {
+ /* Multiboot info version number */
+ uint32_t flags;
+
+ /* Available memory from BIOS */
+ uint32_t mem_lower;
+ uint32_t mem_upper;
+
+ /* "root" partition */
+ uint32_t boot_device;
+
+ /* Kernel command line */
+ uint32_t cmdline;
+
+ /* Boot-Module list */
+ uint32_t mods_count;
+ uint32_t mods_addr;
+
+ uint32_t syms[4];
+
+ /* Memory Mapping buffer */
+ uint32_t mmap_length;
+ uint32_t mmap_addr;
+
+ /* Drive Info buffer */
+ uint32_t drives_length;
+ uint32_t drives_addr;
+
+ /* ROM configuration table */
+ uint32_t config_table;
+
+ /* Boot Loader Name */
+ uint32_t boot_loader_name;
+
+ /* APM table */
+ uint32_t apm_table;
+
+ /* Video */
+ uint32_t vbe_control_info;
+ uint32_t vbe_mode_info;
+ uint16_t vbe_mode;
+ uint16_t vbe_interface_seg;
+ uint16_t vbe_interface_off;
+ uint16_t vbe_interface_len;
+};
+
+struct multiboot_mmap_entry {
+ uint32_t size;
+ uint64_t addr;
+ uint64_t len;
+ uint32_t type;
+} __attribute__ ((packed));
+
+extern struct multiboot_info *mbi;
+
+unsigned long write_multiboot_info(unsigned long, unsigned long, unsigned long, unsigned long);
+
+#endif