Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 60 insertions, 0 deletions

diff --git a/target/hexagon/gen_shortcode.py b/target/hexagon/gen_shortcode.py
new file mode 100755
index 000000000..9b589d018
--- /dev/null
+++ b/target/hexagon/gen_shortcode.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+
+##
+##  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+##
+##  This program is free software; you can redistribute it and/or modify
+##  it under the terms of the GNU General Public License as published by
+##  the Free Software Foundation; either version 2 of the License, or
+##  (at your option) any later version.
+##
+##  This program is distributed in the hope that it will be useful,
+##  but WITHOUT ANY WARRANTY; without even the implied warranty of
+##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##  GNU General Public License for more details.
+##
+##  You should have received a copy of the GNU General Public License
+##  along with this program; if not, see <http://www.gnu.org/licenses/>.
+##
+
+import sys
+import re
+import string
+import hex_common
+
+def gen_shortcode(f, tag):
+    f.write('DEF_SHORTCODE(%s, %s)\n' % (tag, hex_common.semdict[tag]))
+
+def main():
+    hex_common.read_semantics_file(sys.argv[1])
+    hex_common.read_attribs_file(sys.argv[2])
+    hex_common.calculate_attribs()
+    tagregs = hex_common.get_tagregs()
+    tagimms = hex_common.get_tagimms()
+
+    with open(sys.argv[3], 'w') as f:
+        f.write("#ifndef DEF_SHORTCODE\n")
+        f.write("#define DEF_SHORTCODE(TAG,SHORTCODE)    /* Nothing */\n")
+        f.write("#endif\n")
+
+        for tag in hex_common.tags:
+            ## Skip the priv instructions
+            if ( "A_PRIV" in hex_common.attribdict[tag] ) :
+                continue
+            ## Skip the guest instructions
+            if ( "A_GUEST" in hex_common.attribdict[tag] ) :
+                continue
+            ## Skip the diag instructions
+            if ( tag == "Y6_diag" ) :
+                continue
+            if ( tag == "Y6_diag0" ) :
+                continue
+            if ( tag == "Y6_diag1" ) :
+                continue
+
+            gen_shortcode(f, tag)
+
+        f.write("#undef DEF_SHORTCODE\n")
+
+if __name__ == "__main__":
+    main()