diff options
| author | Pierrick Bouvier <pierrick.bouvier@linaro.org> | 2024-02-27 14:43:22 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-02-28 09:11:36 +0000 |
| commit | 4a448b148ca076d80a41addd4fc1e49497cb23c8 (patch) | |
| tree | 73b2d9122e8921d125dabe0b94019751f7d570b1 /plugins | |
| parent | 926e146eff8d7b89754e8b681f80e962d220f077 (diff) | |
plugins: add qemu_plugin_num_vcpus function
We now keep track of how many vcpus were started. This way, a plugin can
easily query number of any vcpus at any point of execution, which
unifies user and system mode workflows.
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213094009.150349-3-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-17-alex.bennee@linaro.org>
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/api.c | 5 | ||||
| -rw-r--r-- | plugins/core.c | 6 | ||||
| -rw-r--r-- | plugins/plugin.h | 4 | ||||
| -rw-r--r-- | plugins/qemu-plugins.symbols | 1 |
4 files changed, 16 insertions, 0 deletions
diff --git a/plugins/api.c b/plugins/api.c index 2926b1961a..116b8bd603 100644 --- a/plugins/api.c +++ b/plugins/api.c @@ -342,6 +342,11 @@ const char *qemu_plugin_hwaddr_device_name(const struct qemu_plugin_hwaddr *h) #endif } +int qemu_plugin_num_vcpus(void) +{ + return plugin_num_vcpus(); +} + /* * Plugin output */ diff --git a/plugins/core.c b/plugins/core.c index ee2fa41af9..caa6631135 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -213,6 +213,7 @@ void qemu_plugin_vcpu_init_hook(CPUState *cpu) bool success; qemu_rec_mutex_lock(&plugin.lock); + plugin.num_vcpus = MAX(plugin.num_vcpus, cpu->cpu_index + 1); plugin_cpu_update__locked(&cpu->cpu_index, NULL, NULL); success = g_hash_table_insert(plugin.cpu_ht, &cpu->cpu_index, &cpu->cpu_index); @@ -570,3 +571,8 @@ static void __attribute__((__constructor__)) plugin_init(void) QHT_MODE_AUTO_RESIZE); atexit(qemu_plugin_atexit_cb); } + +int plugin_num_vcpus(void) +{ + return plugin.num_vcpus; +} diff --git a/plugins/plugin.h b/plugins/plugin.h index 90f3f324ab..00b3509f70 100644 --- a/plugins/plugin.h +++ b/plugins/plugin.h @@ -44,6 +44,8 @@ struct qemu_plugin_state { * the code cache is flushed. */ struct qht dyn_cb_arr_ht; + /* How many vcpus were started */ + int num_vcpus; }; @@ -97,4 +99,6 @@ void plugin_register_vcpu_mem_cb(GArray **arr, void exec_inline_op(struct qemu_plugin_dyn_cb *cb); +int plugin_num_vcpus(void); + #endif /* PLUGIN_H */ diff --git a/plugins/qemu-plugins.symbols b/plugins/qemu-plugins.symbols index ca806000d5..adb6760859 100644 --- a/plugins/qemu-plugins.symbols +++ b/plugins/qemu-plugins.symbols @@ -16,6 +16,7 @@ qemu_plugin_mem_is_sign_extended; qemu_plugin_mem_is_store; qemu_plugin_mem_size_shift; + qemu_plugin_num_vcpus; qemu_plugin_outs; qemu_plugin_path_to_binary; qemu_plugin_register_atexit_cb; |