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| author | Pierrick Bouvier <pierrick.bouvier@linaro.org> | 2024-09-16 09:53:47 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-09-19 15:58:01 +0100 |
| commit | 9505f85e2d3343f2c8502b34600a6abae257bfb6 (patch) | |
| tree | d042a8dab4e5024a8b38f71d3a56a0017f345419 /include/qemu/qemu-plugin.h | |
| parent | b709da5d29a8504b7132db0f7614102210aaf997 (diff) | |
| download | qemu-9505f85e2d3343f2c8502b34600a6abae257bfb6.zip qemu-9505f85e2d3343f2c8502b34600a6abae257bfb6.tar.gz qemu-9505f85e2d3343f2c8502b34600a6abae257bfb6.tar.bz2 | |
plugins: extend API to get latest memory value accessed
This value can be accessed only during a memory callback, using
new qemu_plugin_mem_get_value function.
Returned value can be extended when QEMU will support accesses wider
than 128 bits.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1719
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2152
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xingtao Yao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240724194708.1843704-3-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240916085400.1046925-6-alex.bennee@linaro.org>
Diffstat (limited to 'include/qemu/qemu-plugin.h')
| -rw-r--r-- | include/qemu/qemu-plugin.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h index c71c705..649ce89 100644 --- a/include/qemu/qemu-plugin.h +++ b/include/qemu/qemu-plugin.h @@ -262,6 +262,29 @@ enum qemu_plugin_mem_rw { QEMU_PLUGIN_MEM_RW, }; +enum qemu_plugin_mem_value_type { + QEMU_PLUGIN_MEM_VALUE_U8, + QEMU_PLUGIN_MEM_VALUE_U16, + QEMU_PLUGIN_MEM_VALUE_U32, + QEMU_PLUGIN_MEM_VALUE_U64, + QEMU_PLUGIN_MEM_VALUE_U128, +}; + +/* typedef qemu_plugin_mem_value - value accessed during a load/store */ +typedef struct { + enum qemu_plugin_mem_value_type type; + union { + uint8_t u8; + uint16_t u16; + uint32_t u32; + uint64_t u64; + struct { + uint64_t low; + uint64_t high; + } u128; + } data; +} qemu_plugin_mem_value; + /** * enum qemu_plugin_cond - condition to enable callback * @@ -552,6 +575,15 @@ QEMU_PLUGIN_API bool qemu_plugin_mem_is_store(qemu_plugin_meminfo_t info); /** + * qemu_plugin_mem_get_mem_value() - return last value loaded/stored + * @info: opaque memory transaction handle + * + * Returns: memory value + */ +QEMU_PLUGIN_API +qemu_plugin_mem_value qemu_plugin_mem_get_value(qemu_plugin_meminfo_t info); + +/** * qemu_plugin_get_hwaddr() - return handle for memory operation * @info: opaque memory info structure * @vaddr: the virtual address of the memory operation |