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| author | Pierrick Bouvier <pierrick.bouvier@linaro.org> | 2024-03-05 12:09:53 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-03-06 12:35:29 +0000 |
| commit | 0bcebaba45c2cc3e671e002f3c15266f0ff03b8c (patch) | |
| tree | e3f869f28c383f1bbdf34cb5cf55bcfe9341ad30 /plugins/core.c | |
| parent | 62f92b8d978aba5de931323c3de788ccb2dbd87c (diff) | |
| download | qemu-0bcebaba45c2cc3e671e002f3c15266f0ff03b8c.zip qemu-0bcebaba45c2cc3e671e002f3c15266f0ff03b8c.tar.gz qemu-0bcebaba45c2cc3e671e002f3c15266f0ff03b8c.tar.bz2 | |
plugins: add inline operation per vcpu
Extends API with three new functions:
qemu_plugin_register_vcpu_{tb, insn, mem}_exec_inline_per_vcpu().
Those functions takes a qemu_plugin_u64 as input.
This allows to have a thread-safe and type-safe version of inline
operations.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240304130036.124418-5-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-18-alex.bennee@linaro.org>
Diffstat (limited to 'plugins/core.c')
| -rw-r--r-- | plugins/core.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/plugins/core.c b/plugins/core.c index 65d5611..7852590 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -332,6 +332,23 @@ void plugin_register_inline_op(GArray **arr, dyn_cb->inline_insn.imm = imm; } +void plugin_register_inline_op_on_entry(GArray **arr, + enum qemu_plugin_mem_rw rw, + enum qemu_plugin_op op, + qemu_plugin_u64 entry, + uint64_t imm) +{ + struct qemu_plugin_dyn_cb *dyn_cb; + + dyn_cb = plugin_get_dyn_cb(arr); + dyn_cb->userp = NULL; + dyn_cb->type = PLUGIN_CB_INLINE; + dyn_cb->rw = rw; + dyn_cb->inline_insn.entry = entry; + dyn_cb->inline_insn.op = op; + dyn_cb->inline_insn.imm = imm; +} + void plugin_register_dyn_cb__udata(GArray **arr, qemu_plugin_vcpu_udata_cb_t cb, enum qemu_plugin_cb_flags flags, @@ -480,6 +497,12 @@ void exec_inline_op(struct qemu_plugin_dyn_cb *cb, int cpu_index) char *ptr = cb->userp; size_t elem_size = 0; size_t offset = 0; + if (!ptr) { + /* use inline entry */ + ptr = cb->inline_insn.entry.score->data->data; + elem_size = g_array_get_element_size(cb->inline_insn.entry.score->data); + offset = cb->inline_insn.entry.offset; + } uint64_t *val = (uint64_t *)(ptr + offset + cpu_index * elem_size); switch (cb->inline_insn.op) { |