From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 1 Mar 2017 10:28:04 +0000 (+0100)
Subject: target/nios2: take BQL around interrupt check
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=c0d24e7f70816c8af51ebe9dc74aa276a81858dd;p=people%2Fpauldu%2Fqemu.git

target/nios2: take BQL around interrupt check

The interrupt controller does not have its own locking.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/target/nios2/op_helper.c b/target/nios2/op_helper.c
index 538853cda7..efb1c489c9 100644
--- a/target/nios2/op_helper.c
+++ b/target/nios2/op_helper.c
@@ -21,6 +21,7 @@
 #include "cpu.h"
 #include "exec/helper-proto.h"
 #include "exec/cpu_ldst.h"
+#include "qemu/main-loop.h"
 
 #if !defined(CONFIG_USER_ONLY)
 void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn)
@@ -35,7 +36,9 @@ void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v)
 
 void helper_check_interrupts(CPUNios2State *env)
 {
+    qemu_mutex_lock_iothread();
     nios2_check_interrupts(env);
+    qemu_mutex_unlock_iothread();
 }
 #endif /* !CONFIG_USER_ONLY */