Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / i386 / include / bzimage.h

diff --git a/qemu/roms/ipxe/src/arch/i386/include/bzimage.h b/qemu/roms/ipxe/src/arch/i386/include/bzimage.h
new file mode 100644 (file)
index 0000000..7e42e31
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/i386/include/bzimage.h
@@ -0,0 +1,142 @@
+#ifndef _BZIMAGE_H
+#define _BZIMAGE_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+
+/**
+ * A bzImage header
+ *
+ * As documented in Documentation/i386/boot.txt
+ */
+struct bzimage_header {
+       /** The size of the setup in sectors
+        *
+        * If this field contains 0, assume it contains 4.
+        */
+       uint8_t setup_sects;
+       /** If set, the root is mounted readonly */
+       uint16_t root_flags;
+       /** DO NOT USE - for bootsect.S use only */
+       uint16_t syssize;
+       /** DO NOT USE - obsolete */
+       uint16_t swap_dev;
+       /** DO NOT USE - for bootsect.S use only */
+       uint16_t ram_size;
+       /** Video mode control */
+       uint16_t vid_mode;
+       /** Default root device number */
+       uint16_t root_dev;
+       /** 0xAA55 magic number */
+       uint16_t boot_flag;
+       /** Jump instruction */
+       uint16_t jump;
+       /** Magic signature "HdrS" */
+       uint32_t header;
+       /** Boot protocol version supported */
+       uint16_t version;
+       /** Boot loader hook (see below) */
+       uint32_t realmode_swtch;
+       /** The load-low segment (0x1000) (obsolete) */
+       uint16_t start_sys;
+       /** Pointer to kernel version string */
+       uint16_t kernel_version;
+       /** Boot loader identifier */
+       uint8_t type_of_loader;
+       /** Boot protocol option flags */
+       uint8_t loadflags;
+       /** Move to high memory size (used with hooks) */
+       uint16_t setup_move_size;
+       /** Boot loader hook (see below) */
+       uint32_t code32_start;
+       /** initrd load address (set by boot loader) */
+       uint32_t ramdisk_image;
+       /** initrd size (set by boot loader) */
+       uint32_t ramdisk_size;
+       /** DO NOT USE - for bootsect.S use only */
+       uint32_t bootsect_kludge;
+       /** Free memory after setup end */
+       uint16_t heap_end_ptr;
+       /** Unused */
+       uint16_t pad1;
+       /** 32-bit pointer to the kernel command line */
+       uint32_t cmd_line_ptr;
+       /** Highest legal initrd address */
+       uint32_t initrd_addr_max;
+       /** Physical addr alignment required for kernel */
+       uint32_t kernel_alignment;
+       /** Whether kernel is relocatable or not */
+       uint8_t relocatable_kernel;
+       /** Unused */
+       uint8_t pad2[3];
+       /** Maximum size of the kernel command line */
+       uint32_t cmdline_size;
+} __attribute__ (( packed ));
+
+/** Offset of bzImage header within kernel image */
+#define BZI_HDR_OFFSET 0x1f1
+
+/** bzImage boot flag value */
+#define BZI_BOOT_FLAG 0xaa55
+
+/** bzImage magic signature value */
+#define BZI_SIGNATURE 0x53726448
+
+/** bzImage boot loader identifier for Etherboot */
+#define BZI_LOADER_TYPE_ETHERBOOT 0x40
+
+/** bzImage boot loader identifier for iPXE
+ *
+ * We advertise ourselves as Etherboot version 6.
+ */
+#define BZI_LOADER_TYPE_IPXE ( BZI_LOADER_TYPE_ETHERBOOT | 0x06 )
+
+/** bzImage "load high" flag */
+#define BZI_LOAD_HIGH 0x01
+
+/** Load address for high-loaded kernels */
+#define BZI_LOAD_HIGH_ADDR 0x100000
+
+/** Load address for low-loaded kernels */
+#define BZI_LOAD_LOW_ADDR 0x10000
+
+/** bzImage "kernel can use heap" flag */
+#define BZI_CAN_USE_HEAP 0x80
+
+/** bzImage special video mode "normal" */
+#define BZI_VID_MODE_NORMAL 0xffff
+
+/** bzImage special video mode "ext" */
+#define BZI_VID_MODE_EXT 0xfffe
+
+/** bzImage special video mode "ask" */
+#define BZI_VID_MODE_ASK 0xfffd
+
+/** bzImage maximum initrd address for versions < 2.03 */
+#define BZI_INITRD_MAX 0x37ffffff
+
+/** bzImage command-line structure used by older kernels */
+struct bzimage_cmdline {
+       /** Magic signature */
+       uint16_t magic;
+       /** Offset to command line */
+       uint16_t offset;
+} __attribute__ (( packed ));
+
+/** Offset of bzImage command-line structure within kernel image */
+#define BZI_CMDLINE_OFFSET 0x20
+
+/** bzImage command line present magic marker value */
+#define BZI_CMDLINE_MAGIC 0xa33f
+
+/** Assumed size of real-mode portion (including .bss) */
+#define BZI_ASSUMED_RM_SIZE 0x8000
+
+/** Amount of stack space to provide */
+#define BZI_STACK_SIZE 0x1000
+
+/** Maximum size of command line */
+#define BZI_CMDLINE_SIZE 0x7ff
+
+#endif /* _BZIMAGE_H */