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, 51 insertions, 0 deletions

diff --git a/tests/tcg/openrisc/test_bnf.c b/tests/tcg/openrisc/test_bnf.c
new file mode 100644
index 000000000..f716215f1
--- /dev/null
+++ b/tests/tcg/openrisc/test_bnf.c
@@ -0,0 +1,51 @@
+#include <stdio.h>
+
+int main(void)
+{
+    int a, b;
+    int result;
+
+    a = 0;
+    b = 0;
+    result = 0x3;
+    __asm
+    ("l.sfeqi %1, 0x0\n\t"
+     "l.bnf 1f\n\t"
+     "l.nop\n\t"
+     "\n\t"
+     "l.addi %0, %0, 0x1\n\t"
+     "l.addi %0, %0, 0x1\n\t"
+     "\n\t"
+     "1:\n\t"
+     "l.addi %0, %0, 0x1\n\t"
+     : "+r"(a)
+     : "r"(b)
+    );
+    if (a != result) {
+        printf("l.bnf error\n");
+        return -1;
+    }
+
+    a = 0;
+    b = 0;
+    result = 1;
+    __asm
+    ("l.sfeqi %1, 0x1\n\t"
+     "l.bnf 1f\n\t"
+     "l.nop\n\t"
+     "\n\t"
+     "l.addi %0, %0, 0x1\n\t"
+     "l.addi %0, %0, 0x1\n\t"
+     "\n\t"
+     "1:\n\t"
+     "l.addi %0, %0, 0x1\n\t"
+     : "+r"(a)
+     : "r"(b)
+    );
+    if (a != result) {
+        printf("l.bnf error\n");
+        return -1;
+    }
+
+    return 0;
+}