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-rw-r--r--hw/ppc/ppc.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
index d171e60..5f93083 100644
--- a/hw/ppc/ppc.c
+++ b/hw/ppc/ppc.c
@@ -62,7 +62,16 @@ void ppc_set_irq(PowerPCCPU *cpu, int n_IRQ, int level)
{
CPUState *cs = CPU(cpu);
CPUPPCState *env = &cpu->env;
- unsigned int old_pending = env->pending_interrupts;
+ unsigned int old_pending;
+ bool locked = false;
+
+ /* We may already have the BQL if coming from the reset path */
+ if (!qemu_mutex_iothread_locked()) {
+ locked = true;
+ qemu_mutex_lock_iothread();
+ }
+
+ old_pending = env->pending_interrupts;
if (level) {
env->pending_interrupts |= 1 << n_IRQ;
@@ -80,9 +89,14 @@ void ppc_set_irq(PowerPCCPU *cpu, int n_IRQ, int level)
#endif
}
+
LOG_IRQ("%s: %p n_IRQ %d level %d => pending %08" PRIx32
"req %08x\n", __func__, env, n_IRQ, level,
env->pending_interrupts, CPU(cpu)->interrupt_request);
+
+ if (locked) {
+ qemu_mutex_unlock_iothread();
+ }
}
/* PowerPC 6xx / 7xx internal IRQ controller */