| Message ID | 20240626231255.339353-1-pierrick.bouvier@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | plugins: access values during a memory read/write | expand |
A v2 was sent to fix a compilation issue on aarch64. On 6/26/24 16:12, Pierrick Bouvier wrote: > This series allows plugins to know which value is read/written during a memory > access. > > For every memory access, we know copy this value before calling mem callbacks, > and those can query it using new API functions: > - qemu_plugin_mem_get_value_upper_bits > - qemu_plugin_mem_get_value_lower_bits > > Mem plugin was extended to print accesses, and a new test was added to check > functionality work as expected. A bug was found where callbacks were not > called as expected. > > This will open new use cases for plugins, such as following specific values in > memory. > > Pierrick Bouvier (7): > plugins: fix mem callback array size > plugins: save value during memory accesses > plugins: extend API to get latest memory value accessed > tests/tcg: add mechanism to run specific tests with plugins > tests/tcg: allow to check output of plugins > tests/plugin/mem: add option to print memory accesses > tests/tcg/x86_64: add test for plugin memory access > > accel/tcg/atomic_template.h | 64 +++++++++++++-- > include/qemu/plugin.h | 8 ++ > include/qemu/qemu-plugin.h | 20 +++++ > accel/tcg/plugin-gen.c | 3 +- > plugins/api.c | 21 +++++ > plugins/core.c | 7 ++ > tcg/tcg-op-ldst.c | 72 +++++++++++++++-- > tests/plugin/mem.c | 28 ++++++- > tests/tcg/x86_64/test-plugin-mem-access.c | 89 +++++++++++++++++++++ > accel/tcg/atomic_common.c.inc | 13 ++- > accel/tcg/ldst_common.c.inc | 38 +++++---- > plugins/qemu-plugins.symbols | 2 + > tests/tcg/Makefile.target | 8 +- > tests/tcg/x86_64/Makefile.target | 7 ++ > tests/tcg/x86_64/check-plugin-mem-access.sh | 48 +++++++++++ > 15 files changed, 393 insertions(+), 35 deletions(-) > create mode 100644 tests/tcg/x86_64/test-plugin-mem-access.c > create mode 100755 tests/tcg/x86_64/check-plugin-mem-access.sh >