* [Qemu-devel] [PATCH] target-nios2: take BQL around interrupt check
@ 2017-03-03 12:03 Paolo Bonzini
0 siblings, 0 replies; only message in thread
From: Paolo Bonzini @ 2017-03-03 12:03 UTC (permalink / raw)
To: qemu-devel
The interrupt controller does not have its own locking.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/nios2/op_helper.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/target/nios2/op_helper.c b/target/nios2/op_helper.c
index 538853c..efb1c48 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 */
--
2.9.3
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2017-03-03 12:03 [Qemu-devel] [PATCH] target-nios2: take BQL around interrupt check Paolo Bonzini
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