| Message ID | 20230314110022.184717-3-iii@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/s390x: Implement Early Exception Recognition | expand |
On 3/14/23 04:00, Ilya Leoshkevich wrote: > Add a small test that checks whether early exceptions are recognized > and whether the correct ILC and old PSW are stored when they happen. > > Signed-off-by: Ilya Leoshkevich<iii@linux.ibm.com> > --- > tests/tcg/s390x/Makefile.softmmu-target | 1 + > tests/tcg/s390x/early-exception-recognition.S | 38 +++++++++++++++++++ > 2 files changed, 39 insertions(+) > create mode 100644 tests/tcg/s390x/early-exception-recognition.S Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/tests/tcg/s390x/Makefile.softmmu-target b/tests/tcg/s390x/Makefile.softmmu-target index 725b6c598db..9d3180bbcba 100644 --- a/tests/tcg/s390x/Makefile.softmmu-target +++ b/tests/tcg/s390x/Makefile.softmmu-target @@ -9,3 +9,4 @@ QEMU_OPTS=-action panic=exit-failure -kernel TESTS += unaligned-lowcore TESTS += bal TESTS += sam +TESTS += early-exception-recognition diff --git a/tests/tcg/s390x/early-exception-recognition.S b/tests/tcg/s390x/early-exception-recognition.S new file mode 100644 index 00000000000..4e9677fea36 --- /dev/null +++ b/tests/tcg/s390x/early-exception-recognition.S @@ -0,0 +1,38 @@ +/* + * Test early exception recognition. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + .org 0x8d +ilc: + .org 0x8e +program_interruption_code: + .org 0x150 +program_old_psw: + .org 0x1D0 /* program new PSW */ + .quad 0,pgm + .org 0x200 /* lowcore padding */ + + .globl _start +_start: + lpswe bad_psw + j failure + +pgm: + chhsi program_interruption_code,0x6 /* specification exception? */ + jne failure + cli ilc,0 /* ilc zero? */ + jne failure + clc program_old_psw(16),bad_psw /* correct old PSW? */ + jne failure + lpswe success_psw +failure: + lpswe failure_psw + + .align 8 +bad_psw: + .quad 0x8000000000000000,0xfedcba9876543210 /* bit 0 set */ +success_psw: + .quad 0x2000000000000,0xfff /* see is_special_wait_psw() */ +failure_psw: + .quad 0x2000000000000,0 /* disabled wait */
Add a small test that checks whether early exceptions are recognized and whether the correct ILC and old PSW are stored when they happen. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> --- tests/tcg/s390x/Makefile.softmmu-target | 1 + tests/tcg/s390x/early-exception-recognition.S | 38 +++++++++++++++++++ 2 files changed, 39 insertions(+) create mode 100644 tests/tcg/s390x/early-exception-recognition.S