From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Richard Henderson <richard.henderson@linaro.org>,
David Hildenbrand <david@redhat.com>,
Thomas Huth <thuth@redhat.com>
Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH v2 0/3] target/s390x: Implement Early Exception Recognition
Date: Wed, 15 Mar 2023 03:04:05 +0100 [thread overview]
Message-ID: <20230315020408.384766-1-iii@linux.ibm.com> (raw)
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
next reply other threads:[~2023-03-15 2:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-15 2:04 Ilya Leoshkevich [this message]
2023-03-15 2:04 ` [PATCH v2 1/3] target/s390x: Fix LPSW Ilya Leoshkevich
2023-03-15 8:56 ` David Hildenbrand
2023-03-15 2:04 ` [PATCH v2 2/3] target/s390x: Implement Early Exception Recognition Ilya Leoshkevich
2023-03-15 8:57 ` David Hildenbrand
2023-03-15 2:04 ` [PATCH v2 3/3] tests/tcg/s390x: Add PSW modification tests Ilya Leoshkevich
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