[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v3 04/12] cpus: Wrap mutex used to protect CPU work
From: |
Sergey Fedorov |
Subject: |
[Qemu-devel] [PATCH v3 04/12] cpus: Wrap mutex used to protect CPU work |
Date: |
Thu, 14 Jul 2016 00:00:14 +0300 |
From: Sergey Fedorov <address@hidden>
This will be useful to enable CPU work on user mode emulation.
Signed-off-by: Sergey Fedorov <address@hidden>
Signed-off-by: Sergey Fedorov <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
---
cpus.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/cpus.c b/cpus.c
index 04687c85bcd4..f80ed2aeefdd 100644
--- a/cpus.c
+++ b/cpus.c
@@ -910,6 +910,11 @@ void qemu_init_cpu_loop(void)
qemu_thread_get_self(&io_thread);
}
+static QemuMutex *qemu_get_cpu_work_mutex(void)
+{
+ return &qemu_global_mutex;
+}
+
static void queue_work_on_cpu(CPUState *cpu, struct qemu_work_item *wi)
{
qemu_mutex_lock(&cpu->work_mutex);
@@ -943,7 +948,7 @@ void run_on_cpu(CPUState *cpu, run_on_cpu_func func, void
*data)
while (!atomic_mb_read(&wi.done)) {
CPUState *self_cpu = current_cpu;
- qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex);
+ qemu_cond_wait(&qemu_work_cond, qemu_get_cpu_work_mutex());
current_cpu = self_cpu;
}
}
--
1.9.1
- [Qemu-devel] [PATCH v3 00/12] cpu-exec: Safe work in quiescent state, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 01/12] atomic: introduce atomic_dec_fetch., Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 05/12] cpus: Rename flush_queued_work(), Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 04/12] cpus: Wrap mutex used to protect CPU work,
Sergey Fedorov <=
- [Qemu-devel] [PATCH v3 03/12] cpus: Move common code out of {async_, }run_on_cpu(), Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 06/12] linux-user: Use QemuMutex and QemuCond, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 08/12] linux-user: Add qemu_cpu_is_self() and qemu_cpu_kick(), Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 02/12] cpus: pass CPUState to run_on_cpu helpers, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 09/12] linux-user: Support CPU work queue, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 10/12] bsd-user: Support CPU work queue, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 07/12] linux-user: Rework exclusive operation mechanism, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 12/12] tcg: Make tb_flush() thread safe, Sergey Fedorov, 2016/07/13
- [Qemu-devel] [PATCH v3 11/12] cpu-exec-common: Introduce async_safe_run_on_cpu(), Sergey Fedorov, 2016/07/13