[PULL 6/8] accel/tcg: Set CF_NOIRQ during cpu_exec_step_atomic

[Helge Deller <deller@kernel.org>]

From: Richard Henderson <richard.henderson@linaro.org>

Do not go through the effort of grabbing the exclusive lock
only to check for interrupts and exit without making progress.

Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 accel/tcg/cpu-exec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 5226cfb765..f4428e9f7b 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -566,7 +566,8 @@ void cpu_exec_step_atomic(CPUState *cpu)
         /* Execute in a serial context. */
         s.cflags &= ~CF_PARALLEL;
         /* After 1 insn, return and release the exclusive lock. */
-        s.cflags |= CF_NO_GOTO_TB | CF_NO_GOTO_PTR | 1;
+        s.cflags |= CF_NO_GOTO_TB | CF_NO_GOTO_PTR | CF_NOIRQ | 1;
+
         /*
          * No need to check_for_breakpoints here.
          * We only arrive in cpu_exec_step_atomic after beginning execution
-- 
2.54.0