diff mbox series

[v8,03/25] mttcg: Add missing tb_lock/unlock() in cpu_exec_step()

Message ID 20170127103505.18606-4-alex.bennee@linaro.org
State Superseded
Headers show
Series [v8,01/25] docs: new design document multi-thread-tcg.txt | expand

Commit Message

Alex Bennée Jan. 27, 2017, 10:34 a.m. UTC 
From: Pranith Kumar <bobby.prani@gmail.com>


The recent patch enabling lock assertions uncovered the missing lock
acquisition in cpu_exec_step(). This patch adds them.

CC: Richard Henderson <rth@twiddle.net>
CC: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>

---
 cpu-exec.c | 4 ++++
 1 file changed, 4 insertions(+)

-- 
2.11.0
diff mbox series

Patch

diff --git a/cpu-exec.c b/cpu-exec.c
index 4188fed3c6..1b8685dc21 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -233,14 +233,18 @@  static void cpu_exec_step(CPUState *cpu)
     uint32_t flags;
 
     cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
+    tb_lock();
     tb = tb_gen_code(cpu, pc, cs_base, flags,
                      1 | CF_NOCACHE | CF_IGNORE_ICOUNT);
     tb->orig_tb = NULL;
+    tb_unlock();
     /* execute the generated code */
     trace_exec_tb_nocache(tb, pc);
     cpu_tb_exec(cpu, tb);
+    tb_lock();
     tb_phys_invalidate(tb, -1);
     tb_free(tb);
+    tb_unlock();
 }
 
 void cpu_exec_step_atomic(CPUState *cpu)