[PATCH v2 2/4] x86/boot: Use header to allows inclusion of public xen.h header

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

This allows to include other headers and avoid duplicated declarations.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
---
 xen/arch/x86/include/boot/public/xen.h | 28 ++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 xen/arch/x86/include/boot/public/xen.h

diff --git a/xen/arch/x86/include/boot/public/xen.h 
b/xen/arch/x86/include/boot/public/xen.h
new file mode 100644
index 0000000000..399b86b5e5
--- /dev/null
+++ b/xen/arch/x86/include/boot/public/xen.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* This header allows the inclusion of public xen.h */
+
+#ifndef BOOT__PUBLIC__XEN_H
+#define BOOT__PUBLIC__XEN_H
+
+#if !defined(__XEN__) || defined(__XEN_TOOLS__) || __XEN__ != 1
+#error Unexpected defines
+#endif
+
+#include <xen/types.h>
+
+#ifdef __i386__
+
+# define __XEN_TOOLS__ 1
+# undef __XEN__
+# include <public/arch-x86/xen.h>
+# define __XEN__ 1
+# undef __XEN_TOOLS__
+
+#else
+
+# include <public/arch-x86/xen.h>
+
+#endif
+
+#endif /* BOOT__PUBLIC__XEN_H */
-- 
2.34.1