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, 37 insertions, 0 deletions

diff --git a/linux-user/cpu_loop-common.h b/linux-user/cpu_loop-common.h
new file mode 100644
index 000000000..8828af28a
--- /dev/null
+++ b/linux-user/cpu_loop-common.h
@@ -0,0 +1,37 @@
+/*
+ *  qemu user cpu loop
+ *
+ *  Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ *  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/>.
+ */
+
+#ifndef CPU_LOOP_COMMON_H
+#define CPU_LOOP_COMMON_H
+
+#include "exec/log.h"
+
+#define EXCP_DUMP(env, fmt, ...)                                        \
+do {                                                                    \
+    CPUState *cs = env_cpu(env);                                        \
+    fprintf(stderr, fmt , ## __VA_ARGS__);                              \
+    cpu_dump_state(cs, stderr, 0);                                      \
+    if (qemu_log_separate()) {                                          \
+        qemu_log(fmt, ## __VA_ARGS__);                                  \
+        log_cpu_state(cs, 0);                                           \
+    }                                                                   \
+} while (0)
+
+void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs);
+#endif