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From: "Alex Bennée" <alex.bennee@linaro.org>
To: mttcg@listserver.greensocs.com, qemu-devel@nongnu.org,
	fred.konrad@greensocs.com, a.rigo@virtualopensystems.com,
	serge.fdrv@gmail.com, cota@braap.org, bobby.prani@gmail.com
Cc: mark.burton@greensocs.com, pbonzini@redhat.com,
	jan.kiszka@siemens.com, rth@twiddle.net,
	peter.maydell@linaro.org, claudio.fontana@huawei.com,
	"Sergey Fedorov" <sergey.fedorov@linaro.org>,
	"Alex Bennée" <alex.bennee@linaro.org>
Subject: [Qemu-devel] [PATCH v5 10/13] bsd-user: Support CPU work queue
Date: Tue,  2 Aug 2016 18:27:41 +0100	[thread overview]
Message-ID: <1470158864-17651-11-git-send-email-alex.bennee@linaro.org> (raw)
In-Reply-To: <1470158864-17651-1-git-send-email-alex.bennee@linaro.org>

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>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 bsd-user/main.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/bsd-user/main.c b/bsd-user/main.c
index 315ba1d..24d33c9 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -66,6 +66,19 @@ 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)
 {
@@ -73,6 +86,7 @@ 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)
@@ -746,6 +760,7 @@ 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) {
-- 
2.7.4

  parent reply	other threads:[~2016-08-02 17:27 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-02 17:27 [Qemu-devel] [PATCH v5 00/13] cpu-exec: Safe work in quiescent state Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 01/13] atomic: introduce atomic_dec_fetch Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 02/13] cpus: pass CPUState to run_on_cpu helpers Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 03/13] cpus: Move common code out of {async_, }run_on_cpu() Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 04/13] cpus: Wrap mutex used to protect CPU work Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 05/13] cpus: Rename flush_queued_work() Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 06/13] linux-user: Use QemuMutex and QemuCond Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 07/13] linux-user: Rework exclusive operation mechanism Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 08/13] linux-user: Add qemu_cpu_is_self() and qemu_cpu_kick() Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 09/13] linux-user: Support CPU work queue Alex Bennée
2016-08-02 17:27 ` Alex Bennée [this message]
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 11/13] cpu-exec-common: Introduce async_safe_run_on_cpu() Alex Bennée
2016-08-02 19:22   ` Emilio G. Cota
2016-08-03 21:02     ` Alex Bennée
2016-08-03 23:17       ` Emilio G. Cota
2016-08-04  6:44         ` Alex Bennée
2016-08-28  0:21     ` Paolo Bonzini
2016-08-29 17:26       ` Paolo Bonzini
2016-08-31 10:09         ` Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 12/13] tcg: Make tb_flush() thread safe Alex Bennée
2016-08-02 17:27 ` [Qemu-devel] [PATCH v5 13/13] cpu-exec: replace cpu->queued_work with GArray Alex Bennée
2016-08-02 17:36   ` Alex Bennée
2016-08-02 17:42   ` Alex Bennée
2016-08-02 18:53   ` Emilio G. Cota
2016-08-03  8:34     ` Alex Bennée

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