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, 42 insertions, 0 deletions

diff --git a/accel/tcg/tb-context.h b/accel/tcg/tb-context.h
new file mode 100644
index 000000000..cac62d974
--- /dev/null
+++ b/accel/tcg/tb-context.h
@@ -0,0 +1,42 @@
+/*
+ * Internal structs that QEMU exports to TCG
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * 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/>.
+ */
+
+#ifndef QEMU_TB_CONTEXT_H
+#define QEMU_TB_CONTEXT_H
+
+#include "qemu/thread.h"
+#include "qemu/qht.h"
+
+#define CODE_GEN_HTABLE_BITS     15
+#define CODE_GEN_HTABLE_SIZE     (1 << CODE_GEN_HTABLE_BITS)
+
+typedef struct TBContext TBContext;
+
+struct TBContext {
+
+    struct qht htable;
+
+    /* statistics */
+    unsigned tb_flush_count;
+    unsigned tb_phys_invalidate_count;
+};
+
+extern TBContext tb_ctx;
+
+#endif