From: Gerd Hoffmann <kraxel@redhat.com>
Subject: [RHEL-5.1 PATCH 1/10] xen:bimodal drivers, protocol header
Date: Fri, 15 Jun 2007 10:25:43 +0200
Bugzilla: 222128
Message-Id: <46724D07.6090406@redhat.com>
Changelog: [xen] bimodal drivers, protocol header


  Hi,

Starting with Xen 3.1 the 64bit hypervisor can run 32bit-pae paravirtual 
guests.  Some paravirtual drivers have different data structures in 
32bit vs. 64bit mode.  Thus the backend drivers must be bimodal, i.e.

  (a) must be able to deal with multiple protocols.
  (b) need to know which protocol the frontend driver speaks.

This patch just adds a header file with the protocol names.

cheers,
  Gerd

# HG changeset patch
# User kfraser@localhost.localdomain
# Date 1169563541 0
# Node ID ffe52263b430cff6cd31237f5872c71a3622306b
# Parent  914304b3a3da6fc5bad12f742bae3893b53d20bc
bimodal: header file with protocol names.

Signed-off-by: Gerd Hoffmann <kraxel@suse.de>

diff -r 914304b3a3da -r ffe52263b430 xen/include/public/io/protocols.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ linux/include/xen/interface/io/protocols.h	Tue Jan 23 14:45:41 2007 +0000
@@ -0,0 +1,21 @@
+#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_IA64       "ia64-abi"
+#define XEN_IO_PROTO_ABI_POWERPC64  "powerpc64-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(__ia64__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_IA64
+#elif defined(__powerpc64__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_POWERPC64
+#else
+# error arch fixup needed here
+#endif
+
+#endif