v1: https://lists.gnu.org/archive/html/qemu-devel/2023-03/msg04372.html v1 -> v2: Fix SSM and STOSM (Nina). Fix LPSW (Nina). Check bits 12 and 24 (Nina). Improve the commit message (Nina). Improve naming (David).
Hi, Currently loading bad PSW flags does not lead to an exception, which is not correct. This series fixes this by implementing what PoP calls "Early Exception Recognition". Since it applies to both loading PSW with LPSW/LPSWE and to interrupt handling, s390_cpu_set_psw() looks like the right place for it to be in. SSM and STOSM need special handling, which is implemented inline. Patch 1 fixes the LPSW instruction (which is related), patch 2 implements Early Exception Recognition, patch 3 adds a number of tests. Best regards, Ilya Ilya Leoshkevich (3): target/s390x: Fix LPSW target/s390x: Implement Early Exception Recognition tests/tcg/s390x: Add PSW modification tests target/s390x/cpu.c | 26 +++++++++++++++ target/s390x/cpu.h | 1 + target/s390x/tcg/excp_helper.c | 3 +- target/s390x/tcg/translate.c | 38 ++++++++++++++++------ tests/tcg/s390x/Makefile.softmmu-target | 5 +++ tests/tcg/s390x/exrl-ssm-early.S | 43 +++++++++++++++++++++++++ tests/tcg/s390x/lpsw.S | 36 +++++++++++++++++++++ tests/tcg/s390x/lpswe-early.S | 38 ++++++++++++++++++++++ tests/tcg/s390x/ssm-early.S | 41 +++++++++++++++++++++++ tests/tcg/s390x/stosm-early.S | 41 +++++++++++++++++++++++ 10 files changed, 261 insertions(+), 11 deletions(-) create mode 100644 tests/tcg/s390x/exrl-ssm-early.S create mode 100644 tests/tcg/s390x/lpsw.S create mode 100644 tests/tcg/s390x/lpswe-early.S create mode 100644 tests/tcg/s390x/ssm-early.S create mode 100644 tests/tcg/s390x/stosm-early.S -- 2.39.2
