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[PULL,10/16] tests/tcg/s390x: Test ICM

Message ID 20230724165349.55714-11-thuth@redhat.com
State New
Headers show
Series [PULL,01/16] target/s390x: Make CKSM raise an exception if R2 is odd | expand

Commit Message

Thomas Huth July 24, 2023, 4:53 p.m. UTC 
From: Ilya Leoshkevich <iii@linux.ibm.com>

Add a small test to prevent regressions.

Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230724082032.66864-12-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 tests/tcg/s390x/Makefile.softmmu-target |  1 +
 tests/tcg/s390x/icm.S                   | 32 +++++++++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 tests/tcg/s390x/icm.S
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Patch

diff --git a/tests/tcg/s390x/Makefile.softmmu-target b/tests/tcg/s390x/Makefile.softmmu-target
index 062d8e368a..58684d7da7 100644
--- a/tests/tcg/s390x/Makefile.softmmu-target
+++ b/tests/tcg/s390x/Makefile.softmmu-target
@@ -19,6 +19,7 @@  ASM_TESTS =                                                                    \
     cksm                                                                       \
     clm                                                                        \
     exrl-ssm-early                                                             \
+    icm                                                                        \
     sam                                                                        \
     lpsw                                                                       \
     lpswe-early                                                                \
diff --git a/tests/tcg/s390x/icm.S b/tests/tcg/s390x/icm.S
new file mode 100644
index 0000000000..d24d1f52fb
--- /dev/null
+++ b/tests/tcg/s390x/icm.S
@@ -0,0 +1,32 @@ 
+    .org 0x8e
+program_interruption_code:
+    .org 0x1d0                         /* program new PSW */
+    .quad 0,pgm
+    .org 0x200                         /* lowcore padding */
+    .globl _start
+_start:
+    lgrl %r0,op1
+    icm %r0,10,op2
+    cg %r0,exp
+    jne failure
+    lgrl %r1,bad_addr
+    icm %r0,0,0(%r1)
+failure:
+    lpswe failure_psw
+pgm:
+    chhsi program_interruption_code,5  /* addressing exception? */
+    jne failure
+    lpswe success_psw
+    .align 8
+op1:
+    .quad 0x1234567887654321
+op2:
+    .quad 0x0011223344556677
+exp:
+    .quad 0x1234567800651121
+bad_addr:
+    .quad 0xffffffff00000000
+success_psw:
+    .quad 0x2000000000000,0xfff        /* see is_special_wait_psw() */
+failure_psw:
+    .quad 0x2000000000000,0            /* disabled wait */