1 files changed, 30 insertions, 0 deletions
diff --git a/roms/ipxe/src/arch/i386/include/initrd.h b/roms/ipxe/src/arch/i386/include/initrd.h
new file mode 100644
index 00000000..a5659f43
--- /dev/null
+++ b/roms/ipxe/src/arch/i386/include/initrd.h
@@ -0,0 +1,30 @@
+#ifndef _INITRD_H
+#define _INITRD_H
+
+/** @file
+ *
+ * Initial ramdisk (initrd) reshuffling
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/uaccess.h>
+
+/** Minimum alignment for initrds
+ *
+ * Some versions of Linux complain about initrds that are not
+ * page-aligned.
+ */
+#define INITRD_ALIGN 4096
+
+/** Minimum free space required to reshuffle initrds
+ *
+ * Chosen to avoid absurdly long reshuffling times
+ */
+#define INITRD_MIN_FREE_LEN ( 512 * 1024 )
+
+extern void initrd_reshuffle ( userptr_t bottom );
+extern int initrd_reshuffle_check ( size_t len, userptr_t bottom );
+
+#endif /* _INITRD_H */