xen: Add essential and required interface headers

Add essential and required Xen interface headers only taken from
the stable Linux kernel stable/linux-5.7.y at commit
66dfe4522160 Linux 5.7.5.

These are better suited for U-boot than the original headers
from Xen as they are the stripped versions of the same.

At the same time use public protocols from Xen RELEASE-4.13.1, at
commit 6278553325a9 update Xen version to 4.13.1
as those have more comments in them.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
Acked-by: Peng Fan <peng.fan@nxp.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/include/xen/interface/io/console.h b/include/xen/interface/io/console.h
new file mode 100644
index 00000000000..d4dccc74afa
--- /dev/null
+++ b/include/xen/interface/io/console.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * console.h
+ *
+ * Console I/O interface for Xen guest OSes.
+ *
+ * Copyright (c) 2005, Keir Fraser
+ */
+
+#ifndef __XEN_PUBLIC_IO_CONSOLE_H__
+#define __XEN_PUBLIC_IO_CONSOLE_H__
+
+typedef u32 XENCONS_RING_IDX;
+
+#define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring) - 1))
+
+struct xencons_interface {
+	char in[1024];
+	char out[2048];
+	XENCONS_RING_IDX in_cons, in_prod;
+	XENCONS_RING_IDX out_cons, out_prod;
+};
+
+#ifdef XEN_WANT_FLEX_CONSOLE_RING
+#include "ring.h"
+DEFINE_XEN_FLEX_RING(xencons);
+#endif
+
+#endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */