1 files changed, 74 insertions, 0 deletions
diff --git a/arch/i386/include/asm/zimage.h b/arch/i386/include/asm/zimage.h
new file mode 100644
index 000000000..b6266e456
--- /dev/null
+++ b/arch/i386/include/asm/zimage.h
@@ -0,0 +1,74 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ZIMAGE_H_
+#define _ASM_ZIMAGE_H_
+
+/* linux i386 zImage/bzImage header. Offsets relative to
+ * the start of the image */
+
+#define CMD_LINE_MAGIC_OFF  0x020 /* Magic 0xa33f if the offset below is valid */
+#define CMD_LINE_OFFSET_OFF 0x022 /* Offset to comandline */
+#define SETUP_SECTS_OFF     0x1F1 /* The size of the setup in sectors */
+#define ROOT_FLAGS_OFF      0x1F2 /* If set, the root is mounted readonly */
+#define VID_MODE_OFF        0x1FA /* Video mode control */
+#define ROOT_DEV_OFF        0x1FC /* Default root device number */
+#define BOOT_FLAG_OFF       0x1FE /* 0xAA55 magic number */
+#define HEADER_OFF          0x202 /* Magic signature "HdrS" */
+#define VERSION_OFF         0x206 /* Boot protocol version supported */
+#define REALMODE_SWTCH_OFF  0x208 /* Boot loader hook (see below) */
+#define START_SYS_OFF       0x20C /* Points to kernel version string */
+#define TYPE_OF_LOADER_OFF  0x210 /* Boot loader identifier */
+#define LOADFLAGS_OFF       0x211 /* Boot protocol option flags */
+#define SETUP_MOVE_SIZE_OFF 0x212 /* Move to high memory size (used with hooks) */
+#define CODE32_START_OFF    0x214 /* Boot loader hook (see below) */
+#define RAMDISK_IMAGE_OFF   0x218 /* initrd load address (set by boot loader) */
+#define RAMDISK_SIZE_OFF    0x21C /* initrd size (set by boot loader) */
+#define HEAP_END_PTR_OFF    0x224 /* Free memory after setup end */
+#define CMD_LINE_PTR_OFF    0x228 /* 32-bit pointer to the kernel command line */
+
+
+#define HEAP_FLAG           0x80
+#define BIG_KERNEL_FLAG     0x01
+
+/* magic numbers */
+#define KERNEL_MAGIC        0xaa55
+#define KERNEL_V2_MAGIC     0x53726448
+#define COMMAND_LINE_MAGIC  0xA33F
+
+/* limits */
+#define BZIMAGE_MAX_SIZE   15*1024*1024     /* 15MB */
+#define ZIMAGE_MAX_SIZE    512*1024         /* 512k */
+#define SETUP_MAX_SIZE     32768
+
+#define SETUP_START_OFFSET 0x200
+#define BZIMAGE_LOAD_ADDR  0x100000
+#define ZIMAGE_LOAD_ADDR   0x10000
+
+void *load_zimage(char *image, unsigned long kernel_size,
+		  unsigned long initrd_addr, unsigned long initrd_size,
+		  int auto_boot);
+
+void boot_zimage(void *setup_base);
+
+#endif