diff mbox

[2/2] target/lm32: hold BQL in gdbstub

Message ID 20180521115252.10759-3-michael@walle.cc (mailing list archive)
State New, archived
Headers show

Commit Message

Michael Walle May 21, 2018, 11:52 a.m. UTC 
Changing the IP/IM registers may cause interrupts, so hold the BQL.

Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Walle <michael@walle.cc>
---
 target/lm32/gdbstub.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox

Patch

diff --git a/target/lm32/gdbstub.c b/target/lm32/gdbstub.c
index cf929dd392..2cdeef8f5e 100644
--- a/target/lm32/gdbstub.c
+++ b/target/lm32/gdbstub.c
@@ -82,10 +82,14 @@  int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
             env->ie = tmp;
             break;
         case 37:
+            qemu_mutex_lock_iothread();
             lm32_pic_set_im(env->pic_state, tmp);
+            qemu_mutex_unlock_iothread();
             break;
         case 38:
+            qemu_mutex_lock_iothread();
             lm32_pic_set_ip(env->pic_state, tmp);
+            qemu_mutex_unlock_iothread();
             break;
         }
     }