1 files changed, 39 insertions, 0 deletions
diff --git a/roms/ipxe/src/arch/i386/include/sdi.h b/roms/ipxe/src/arch/i386/include/sdi.h
new file mode 100644
index 00000000..fc486402
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/sdi.h
@@ -0,0 +1,39 @@
+#ifndef _SDI_H
+#define _SDI_H
+
+/** @file
+ *
+ * System Deployment Image (SDI)
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** SDI image header */
+struct sdi_header {
+	/** Signature */
+	uint32_t magic;
+	/** Version (as an ASCII string) */
+	uint32_t version;
+	/** Reserved */
+	uint8_t reserved[8];
+	/** Boot code offset */
+	uint64_t boot_offset;
+	/** Boot code size */
+	uint64_t boot_size;
+} __attribute__ (( packed ));
+
+/** SDI image signature */
+#define SDI_MAGIC \
+	( ( '$' << 0 ) | ( 'S' << 8 ) | ( 'D' << 16 ) | ( 'I' << 24 ) )
+
+/** SDI boot segment */
+#define SDI_BOOT_SEG 0x0000
+
+/** SDI boot offset */
+#define SDI_BOOT_OFF 0x7c00
+
+/** Constant to binary-OR with physical address of SDI image */
+#define SDI_WTF 0x41
+
+#endif /* _SDI_H */