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, 27 insertions, 0 deletions

diff --git a/target/nios2/helper.h b/target/nios2/helper.h
new file mode 100644
index 000000000..6c8f0b5b3
--- /dev/null
+++ b/target/nios2/helper.h
@@ -0,0 +1,27 @@
+/*
+ * Altera Nios II helper routines header.
+ *
+ * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>
+ */
+
+DEF_HELPER_FLAGS_2(raise_exception, TCG_CALL_NO_WG, noreturn, env, i32)
+
+#if !defined(CONFIG_USER_ONLY)
+DEF_HELPER_2(mmu_read_debug, void, env, i32)
+DEF_HELPER_3(mmu_write, void, env, i32, i32)
+DEF_HELPER_1(check_interrupts, void, env)
+#endif