[PATCH 05/24] accel/tcg: Extract tcg_cpu_exit() from cpu_exit()

[Philippe Mathieu-Daudé]

Extract tcg_cpu_exit() from the user cpu_exit() implementation.
In few commits we will re-use it in the system one (via a
per-accel handler).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 accel/tcg/internal-common.h | 2 ++
 accel/tcg/translate-all.c   | 7 +++++++
 accel/tcg/user-exec.c       | 4 +---
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/accel/tcg/internal-common.h b/accel/tcg/internal-common.h
index ead53cb8a5..df317e7496 100644
--- a/accel/tcg/internal-common.h
+++ b/accel/tcg/internal-common.h
@@ -24,4 +24,6 @@ static inline bool cpu_in_serial_context(CPUState *cs)
     return !tcg_cflags_has(cs, CF_PARALLEL) || cpu_in_exclusive_context(cs);
 }
 
+void tcg_cpu_exit(CPUState *cpu);
+
 #endif
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index fdf6d8ac19..b67adce20e 100644
--- a/accel/tcg/translate-all.c
+++ b/accel/tcg/translate-all.c
@@ -663,3 +663,10 @@ void tcg_flush_jmp_cache(CPUState *cpu)
         qatomic_set(&jc->array[i].tb, NULL);
     }
 }
+
+void tcg_cpu_exit(CPUState *cpu)
+{
+    /* Ensure cpu_exec will see the exit request after TCG has exited.  */
+    smp_wmb();
+    qatomic_set(&cpu->neg.icount_decr.u16.high, -1);
+}
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index 404d8a145c..d7e5f00c97 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -49,9 +49,7 @@ void cpu_interrupt(CPUState *cpu, int mask)
 void cpu_exit(CPUState *cpu)
 {
     qatomic_set(&cpu->exit_request, 1);
-    /* Ensure cpu_exec will see the exit request after TCG has exited.  */
-    smp_wmb();
-    qatomic_set(&cpu->neg.icount_decr.u16.high, -1);
+    tcg_cpu_exit(cpu);
 }
 
 /*
-- 
2.41.0