plugins: remove qemu_plugin_id_t from qemu_plugin_vcpu_simple_cb_t

Not used in all our plugins.
Future commits will remove qemu_plugin_vcpu_simple_cb_t completely, and
replace it with qemu_plugin_vcpu_udata_cb_t, so id information can be
passed using userdata if needed.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Link: https://lore.kernel.org/qemu-devel/20260615193526.2883349-7-pierrick.bouvier@oss.qualcomm.com
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>

contrib/plugins/bbv.c

@@ -60,7 +60,7 @@ static qemu_plugin_u64 bb_count_u64(Bb *bb)
     return qemu_plugin_scoreboard_u64(bb->count);
 }
 
-static void vcpu_init(qemu_plugin_id_t id, unsigned int vcpu_index)
+static void vcpu_init(unsigned int vcpu_index)
 {
     g_autofree gchar *vcpu_filename = NULL;
     Vcpu *vcpu = qemu_plugin_scoreboard_find(vcpus, vcpu_index);

contrib/plugins/execlog.c

@@ -382,7 +382,7 @@ static GPtrArray *registers_init(int vcpu_index)
  * As we could have multiple threads trying to do this we need to
  * serialise the expansion under a lock.
  */
-static void vcpu_init(qemu_plugin_id_t id, unsigned int vcpu_index)
+static void vcpu_init(unsigned int vcpu_index)
 {
     CPU *c;
 

contrib/plugins/ips.c

@@ -89,7 +89,7 @@ static void update_system_time(vCPUTime *vcpu)
     g_mutex_unlock(&global_state_lock);
 }
 
-static void vcpu_init(qemu_plugin_id_t id, unsigned int cpu_index)
+static void vcpu_init(unsigned int cpu_index)
 {
     vCPUTime *vcpu = qemu_plugin_scoreboard_find(vcpus, cpu_index);
     vcpu->total_insn = 0;
@@ -97,7 +97,7 @@ static void vcpu_init(qemu_plugin_id_t id, unsigned int cpu_index)
     vcpu->last_quantum_time = now_ns();
 }
 
-static void vcpu_exit(qemu_plugin_id_t id, unsigned int cpu_index)
+static void vcpu_exit(unsigned int cpu_index)
 {
     vCPUTime *vcpu = qemu_plugin_scoreboard_find(vcpus, cpu_index);
     update_system_time(vcpu);

contrib/plugins/uftrace.c

@@ -874,7 +874,7 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
     }
 }
 
-static void vcpu_init(qemu_plugin_id_t id, unsigned int vcpu_index)
+static void vcpu_init(unsigned int vcpu_index)
 {
     Cpu *cpu = qemu_plugin_scoreboard_find(score, vcpu_index);
     cpu->ops = arch_ops;

include/plugins/qemu-plugin.h

@@ -149,11 +149,9 @@ typedef void (*qemu_plugin_udata_cb_t)(void *userdata);
 
 /**
  * typedef qemu_plugin_vcpu_simple_cb_t - vcpu callback
- * @id: the unique qemu_plugin_id_t
  * @vcpu_index: the current vcpu context
  */
-typedef void (*qemu_plugin_vcpu_simple_cb_t)(qemu_plugin_id_t id,
-                                             unsigned int vcpu_index);
+typedef void (*qemu_plugin_vcpu_simple_cb_t)(unsigned int vcpu_index);
 
 /**
  * typedef qemu_plugin_vcpu_udata_cb_t - vcpu callback

plugins/core.c

@@ -96,8 +96,7 @@ static void plugin_vcpu_cb__simple(CPUState *cpu, enum qemu_plugin_event ev)
         /* iterate safely; plugins might uninstall themselves at any time */
         QLIST_FOREACH_SAFE_RCU(cb, &plugin.cb_lists[ev], entry, next) {
             qemu_plugin_vcpu_simple_cb_t func = cb->f.vcpu_simple;
-
-            func(cb->ctx->id, cpu->cpu_index);
+            func(cpu->cpu_index);
         }
         break;
     default:
@@ -306,8 +305,7 @@ static void plugin_vcpu_for_each(gpointer k, gpointer v, gpointer udata)
 {
     struct plugin_for_each_args *args = udata;
     int cpu_index = *(int *)k;
-
-    args->cb(args->ctx->id, cpu_index);
+    args->cb(cpu_index);
 }
 
 void qemu_plugin_vcpu_for_each(qemu_plugin_id_t id,

tests/tcg/plugins/bb.c

@@ -56,7 +56,7 @@ static void plugin_exit(void *p)
     qemu_plugin_scoreboard_free(counts);
 }
 
-static void vcpu_idle(qemu_plugin_id_t id, unsigned int cpu_index)
+static void vcpu_idle(unsigned int cpu_index)
 {
     CPUCount *count = qemu_plugin_scoreboard_find(counts, cpu_index);
     g_autoptr(GString) report = g_string_new("");

tests/tcg/plugins/insn.c

@@ -84,7 +84,7 @@ static Instruction * get_insn_record(const char *disas, uint64_t vaddr, Match *m
 /*
  * Initialise a new vcpu with reading the register list
  */
-static void vcpu_init(qemu_plugin_id_t id, unsigned int vcpu_index)
+static void vcpu_init(unsigned int vcpu_index)
 {
     g_autoptr(GArray) reg_list = qemu_plugin_get_registers();
     g_autoptr(GByteArray) reg_value = g_byte_array_new();

tests/tcg/plugins/registers.c

@@ -21,7 +21,7 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
  * registers that cannot be written to, which would fail the test.
  * See: https://lists.gnu.org/archive/html/qemu-devel/2026-02/msg07025.html
  */
-static void vcpu_init_cb(qemu_plugin_id_t id, unsigned int vcpu_index)
+static void vcpu_init_cb(unsigned int vcpu_index)
 {
     g_autoptr(GArray) regs = qemu_plugin_get_registers();
     g_assert(regs != NULL);