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[PATCH 0/3] accel/tcg: Fix unaligned stores to s390x low-address-protect
From: |
Ilya Leoshkevich |
Subject: |
[PATCH 0/3] accel/tcg: Fix unaligned stores to s390x low-address-protected lowcore |
Date: |
Mon, 11 Jul 2022 20:56:37 +0200 |
Hi,
I noticed that certain accesses to lowcore incorrectly trigger
protection exceptions. I tracked it down to store_helper_unaligned()
calling tlb_fill() with ranges like [0, 2000).
Patch 1 fixes the issue, patch 2 adds a new MMIO device that enables
writing system tests for s390x, patch 3 adds a system test for this
issue.
Best regards,
Ilya
Ilya Leoshkevich (3):
accel/tcg: Fix unaligned stores to s390x low-address-protected lowcore
hw/misc: Add mmio-debug-exit device
tests/tcg/s390x: Test unaligned accesses to lowcore
accel/tcg/cputlb.c | 8 ++-
hw/misc/Kconfig | 3 +
hw/misc/debugexit_mmio.c | 80 +++++++++++++++++++++++++
hw/misc/meson.build | 1 +
hw/s390x/Kconfig | 1 +
tests/tcg/s390x/Makefile.softmmu-target | 9 +++
tests/tcg/s390x/unaligned-lowcore.S | 24 ++++++++
7 files changed, 123 insertions(+), 3 deletions(-)
create mode 100644 hw/misc/debugexit_mmio.c
create mode 100644 tests/tcg/s390x/Makefile.softmmu-target
create mode 100644 tests/tcg/s390x/unaligned-lowcore.S
--
2.35.3
- [PATCH 0/3] accel/tcg: Fix unaligned stores to s390x low-address-protected lowcore,
Ilya Leoshkevich <=
[PATCH 1/3] accel/tcg: Fix unaligned stores to s390x low-address-protected lowcore, Ilya Leoshkevich, 2022/07/11
[PATCH 3/3] tests/tcg/s390x: Test unaligned accesses to lowcore, Ilya Leoshkevich, 2022/07/11