diff mbox series

[v4,10/54] translate-all: use cpu_in_exclusive_work_context() in tb_flush

Message ID 20190731160719.11396-11-alex.bennee@linaro.org
State Superseded
Headers show
Series plugins for TCG | expand

Commit Message

Alex Bennée July 31, 2019, 4:06 p.m. UTC 
From: "Emilio G. Cota" <cota@braap.org>


tb_flush will be called by the plugin module from a safe
work environment. Prepare for that.

Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

Signed-off-by: Emilio G. Cota <cota@braap.org>

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

---
 accel/tcg/translate-all.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

-- 
2.20.1

Comments

Richard Henderson Aug. 1, 2019, 3:25 p.m. UTC | #1 
On 7/31/19 9:06 AM, Alex Bennée wrote:
> From: "Emilio G. Cota" <cota@braap.org>

> 

> tb_flush will be called by the plugin module from a safe

> work environment. Prepare for that.

> 

> Suggested-by: Alex Bennée <alex.bennee@linaro.org>

> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> Signed-off-by: Emilio G. Cota <cota@braap.org>

> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

> ---

>  accel/tcg/translate-all.c | 9 +++++++--

>  1 file changed, 7 insertions(+), 2 deletions(-)


Reviewed-by: Richard Henderson <richard.henderson@linaro.org>



r~
diff mbox series

Patch

diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index 5d1e08b1699..9c5c60ed964 100644
--- a/accel/tcg/translate-all.c
+++ b/accel/tcg/translate-all.c
@@ -1268,8 +1268,13 @@  void tb_flush(CPUState *cpu)
 {
     if (tcg_enabled()) {
         unsigned tb_flush_count = atomic_mb_read(&tb_ctx.tb_flush_count);
-        async_safe_run_on_cpu(cpu, do_tb_flush,
-                              RUN_ON_CPU_HOST_INT(tb_flush_count));
+
+        if (cpu_in_exclusive_context(cpu)) {
+            do_tb_flush(cpu, RUN_ON_CPU_HOST_INT(tb_flush_count));
+        } else {
+            async_safe_run_on_cpu(cpu, do_tb_flush,
+                                  RUN_ON_CPU_HOST_INT(tb_flush_count));
+        }
     }
 }