feat: start setup virtio

include/endian.h

@@ -0,0 +1,21 @@
+//
+// Created by rick on 14-5-22.
+//
+
+#ifndef NEW_KERNEL_ENDIAN_H
+#define NEW_KERNEL_ENDIAN_H
+
+#include <stdint.h>
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define leu16_to_native(x) x
+#define leu32_to_native(x) x
+#else
+#define leu16_to_native(x) ((x) >> 8 | (x) << 8)
+#define leu32_to_native(x) (((x)>>24)&0xff) | \
+                        (((x)<<8)&0xff0000) | \
+                        (((x)>>8)&0xff00) | \
+                        (((x)<<24)&0xff000000)
+#endif
+
+#endif //NEW_KERNEL_ENDIAN_H