cpu: hook plugin vcpu events

Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/cpus.c b/cpus.c
index fabbeca6f4..63bda152f5 100644
--- a/cpus.c
+++ b/cpus.c
@@ -45,6 +45,7 @@
 #include "exec/exec-all.h"
 
 #include "qemu/thread.h"
+#include "qemu/plugin.h"
 #include "sysemu/cpus.h"
 #include "sysemu/qtest.h"
 #include "qemu/main-loop.h"
@@ -1264,9 +1265,18 @@ static void qemu_tcg_rr_wait_io_event(void)
 
 static void qemu_wait_io_event(CPUState *cpu)
 {
+    bool slept = false;
+
     while (cpu_thread_is_idle(cpu)) {
+        if (!slept) {
+            slept = true;
+            qemu_plugin_vcpu_idle_cb(cpu);
+        }
         qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
     }
+    if (slept) {
+        qemu_plugin_vcpu_resume_cb(cpu);
+    }
 
 #ifdef _WIN32
     /* Eat dummy APC queued by qemu_cpu_kick_thread.  */