tests/tcg/s390x: Test LRA

Add a small test to prevent regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230704081506.276055-11-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/tests/tcg/s390x/Makefile.softmmu-target b/tests/tcg/s390x/Makefile.softmmu-target
index 44dfd716291a663e0db3fddba98e965abfcddef5..242c7b0f83c0ce33445fba5e94c4310190b2fde6 100644 (file)
--- a/tests/tcg/s390x/Makefile.softmmu-target
+++ b/tests/tcg/s390x/Makefile.softmmu-target
@@ -20,6 +20,7 @@ ASM_TESTS =                                                                    \
     sam                                                                        \
     lpsw                                                                       \
     lpswe-early                                                                \
+    lra                                                                        \
     ssm-early                                                                  \
     stosm-early                                                                \
     unaligned-lowcore

diff --git a/tests/tcg/s390x/lra.S b/tests/tcg/s390x/lra.S
new file mode 100644 (file)
index 0000000..79ab86f
--- /dev/null
+++ b/tests/tcg/s390x/lra.S
@@ -0,0 +1,19 @@
+    .org 0x200                         /* lowcore padding */
+    .globl _start
+_start:
+    lgrl %r1,initial_r1
+    lra %r1,0(%r1)
+    cgrl %r1,expected_r1
+    jne 1f
+    lpswe success_psw
+1:
+    lpswe failure_psw
+    .align 8
+initial_r1:
+    .quad 0x8765432112345678
+expected_r1:
+    .quad 0x8765432180000038           /* ASCE type exception */
+success_psw:
+    .quad 0x2000000000000,0xfff        /* see is_special_wait_psw() */
+failure_psw:
+    .quad 0x2000000000000,0            /* disabled wait */