tests/tcg: target/s390x: Test MVO

Let's add the simple test based on the example from the PoP.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>

2 files changed, 26 insertions, 0 deletions

diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target
index 151dc075aa..6a3bfa8b29 100644
--- a/tests/tcg/s390x/Makefile.target
+++ b/tests/tcg/s390x/Makefile.target
@@ -6,3 +6,4 @@ TESTS+=ipm
 TESTS+=exrl-trt
 TESTS+=exrl-trtr
 TESTS+=pack
+TESTS+=mvo
diff --git a/tests/tcg/s390x/mvo.c b/tests/tcg/s390x/mvo.c
new file mode 100644
index 0000000000..5546fe2a97
--- /dev/null
+++ b/tests/tcg/s390x/mvo.c
@@ -0,0 +1,25 @@
+#include <stdint.h>
+#include <stdio.h>
+
+int main(void)
+{
+    uint8_t dest[6] = {0xff, 0x77, 0x88, 0x99, 0x0c, 0xff};
+    uint8_t src[5] = {0xee, 0x12, 0x34, 0x56, 0xee};
+    uint8_t expected[6] = {0xff, 0x01, 0x23, 0x45, 0x6c, 0xff};
+    int i;
+
+    asm volatile (
+        "    mvo 0(4,%[dest]),0(3,%[src])\n"
+        :
+        : [dest] "d" (dest + 1),
+          [src] "d" (src + 1)
+        : "memory");
+
+    for (i = 0; i < sizeof(expected); i++) {
+        if (dest[i] != expected[i]) {
+            fprintf(stderr, "bad data\n");
+            return 1;
+        }
+    }
+    return 0;
+}