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[v4,10/12] bsd-user: Support CPU work queue

Message ID 20160715185726.10181-11-sergey.fedorov@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

sergey.fedorov@linaro.org July 15, 2016, 6:57 p.m. UTC 
From: Sergey Fedorov <serge.fdrv@gmail.com>

It is a minimalistic support because bsd-linux claims to be _not_
threadsafe.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
---
 bsd-user/main.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
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Patch

diff --git a/bsd-user/main.c b/bsd-user/main.c
index 4819b9ec6333..f738dd64d691 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -63,6 +63,19 @@  int cpu_get_pic_interrupt(CPUX86State *env)
 }
 #endif
 
+void qemu_init_cpu_loop(void)
+{
+    /* We need to do this becuase process_queued_cpu_work() calls
+     * qemu_cond_broadcast() on it
+     */
+    qemu_cond_init(&qemu_work_cond);
+}
+
+QemuMutex *qemu_get_cpu_work_mutex(void)
+{
+    return NULL; /* it will never be used */
+}
+
 /* These are no-ops because we are not threadsafe.  */
 static inline void cpu_exec_start(CPUArchState *env)
 {
@@ -70,6 +83,7 @@  static inline void cpu_exec_start(CPUArchState *env)
 
 static inline void cpu_exec_end(CPUArchState *env)
 {
+    process_queued_cpu_work(cpu);
 }
 
 static inline void start_exclusive(void)
@@ -740,6 +754,7 @@  int main(int argc, char **argv)
     if (argc <= 1)
         usage();
 
+    qemu_init_cpu_loop();
     module_call_init(MODULE_INIT_QOM);
 
     if ((envlist = envlist_create()) == NULL) {