From c78d9269755dce56ac8d16181af46aa969aa7755 Mon Sep 17 00:00:00 2001 From: Ilya Leoshkevich Date: Mon, 20 Feb 2023 08:40:30 -1000 Subject: [PATCH] tests/tcg/s390x: Add bal.S Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich Signed-off-by: Richard Henderson Message-Id: <20221103130011.2670186-1-iii@linux.ibm.com> Message-Id: <20230220184052.163465-6-richard.henderson@linaro.org> Signed-off-by: Thomas Huth --- tests/tcg/s390x/Makefile.softmmu-target | 1 + tests/tcg/s390x/bal.S | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) create mode 100644 tests/tcg/s390x/bal.S diff --git a/tests/tcg/s390x/Makefile.softmmu-target b/tests/tcg/s390x/Makefile.softmmu-target index 50c1b88065..bcbe9367ef 100644 --- a/tests/tcg/s390x/Makefile.softmmu-target +++ b/tests/tcg/s390x/Makefile.softmmu-target @@ -7,3 +7,4 @@ QEMU_OPTS=-action panic=exit-failure -kernel -Wl,--build-id=none $< -o $@ TESTS += unaligned-lowcore +TESTS += bal diff --git a/tests/tcg/s390x/bal.S b/tests/tcg/s390x/bal.S new file mode 100644 index 0000000000..e54d8874ff --- /dev/null +++ b/tests/tcg/s390x/bal.S @@ -0,0 +1,24 @@ + .org 0x200 /* lowcore padding */ + .globl _start +_start: + lpswe start24_psw +_start24: + lgrl %r0,initial_r0 + lgrl %r1,expected_r0 + bal %r0,0f +0: + cgrjne %r0,%r1,1f + lpswe success_psw +1: + lpswe failure_psw + .align 8 +start24_psw: + .quad 0x160000000000,_start24 /* 24-bit mode, cc = 1, pm = 6 */ +initial_r0: + .quad 0x1234567887654321 +expected_r0: + .quad 0x1234567896000000 + 0b /* ilc = 2, cc = 1, pm = 6 */ +success_psw: + .quad 0x2000000000000,0xfff /* see is_special_wait_psw() */ +failure_psw: + .quad 0x2000000000000,0 /* disabled wait */