plugins: create CPUPluginState and migrate plugin_mask

As we expand the per-vCPU data for plugins we don't want to pollute
CPUState. For now this just moves the plugin_mask (renamed to
event_mask) as the memory callbacks are accessed directly by TCG
generated code.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-23-alex.bennee@linaro.org>

1 files changed, 10 insertions, 3 deletions

diff --git a/plugins/core.c b/plugins/core.c
index 2392bbb888..2db4d31354 100644
--- a/plugins/core.c
+++ b/plugins/core.c
@@ -17,6 +17,7 @@
 #include "qapi/error.h"
 #include "qemu/lockable.h"
 #include "qemu/option.h"
+#include "qemu/plugin.h"
 #include "qemu/rcu_queue.h"
 #include "qemu/xxhash.h"
 #include "qemu/rcu.h"
@@ -53,7 +54,8 @@ struct qemu_plugin_ctx *plugin_id_to_ctx_locked(qemu_plugin_id_t id)
 
 static void plugin_cpu_update__async(CPUState *cpu, run_on_cpu_data data)
 {
-    bitmap_copy(cpu->plugin_mask, &data.host_ulong, QEMU_PLUGIN_EV_MAX);
+    bitmap_copy(cpu->plugin_state->event_mask,
+                &data.host_ulong, QEMU_PLUGIN_EV_MAX);
     tcg_flush_jmp_cache(cpu);
 }
 
@@ -208,6 +210,11 @@ plugin_register_cb_udata(qemu_plugin_id_t id, enum qemu_plugin_event ev,
     do_plugin_register_cb(id, ev, func, udata);
 }
 
+CPUPluginState *qemu_plugin_create_vcpu_state(void)
+{
+    return g_new0(CPUPluginState, 1);
+}
+
 void qemu_plugin_vcpu_init_hook(CPUState *cpu)
 {
     bool success;
@@ -356,7 +363,7 @@ qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t a2,
     struct qemu_plugin_cb *cb, *next;
     enum qemu_plugin_event ev = QEMU_PLUGIN_EV_VCPU_SYSCALL;
 
-    if (!test_bit(ev, cpu->plugin_mask)) {
+    if (!test_bit(ev, cpu->plugin_state->event_mask)) {
         return;
     }
 
@@ -378,7 +385,7 @@ void qemu_plugin_vcpu_syscall_ret(CPUState *cpu, int64_t num, int64_t ret)
     struct qemu_plugin_cb *cb, *next;
     enum qemu_plugin_event ev = QEMU_PLUGIN_EV_VCPU_SYSCALL_RET;
 
-    if (!test_bit(ev, cpu->plugin_mask)) {
+    if (!test_bit(ev, cpu->plugin_state->event_mask)) {
         return;
     }