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-rw-r--r--include/xen/interface/io/protocols.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
new file mode 100644
index 00000000000..5aa0aaa93be
--- /dev/null
+++ b/include/xen/interface/io/protocols.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * protocols.h
+ *
+ * Copyright (c) 2008, Keir Fraser
+ *
+ * Xen protocols, which are used as ABI rules governing the format of all
+ * ring request and response structures.
+ */
+
+#ifndef __XEN_PROTOCOLS_H__
+#define __XEN_PROTOCOLS_H__
+
+#define XEN_IO_PROTO_ABI_X86_32 "x86_32-abi"
+#define XEN_IO_PROTO_ABI_X86_64 "x86_64-abi"
+#define XEN_IO_PROTO_ABI_ARM "arm-abi"
+
+#if defined(__i386__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_32
+#elif defined(__x86_64__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_64
+#elif defined(__arm__) || defined(__aarch64__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_ARM
+#else
+# error arch fixup needed here
+#endif
+
+#endif