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-rw-r--r--hw/intc/spapr_xive.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index eea28337e8..d391177ab8 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -179,6 +179,15 @@ static void spapr_xive_map_mmio(sPAPRXive *xive)
     sysbus_mmio_map(SYS_BUS_DEVICE(xive), 2, xive->tm_base);
 }
 
+void spapr_xive_mmio_set_enabled(sPAPRXive *xive, bool enable)
+{
+    memory_region_set_enabled(&xive->source.esb_mmio, enable);
+    memory_region_set_enabled(&xive->tm_mmio, enable);
+
+    /* Disable the END ESBs until a guest OS makes use of them */
+    memory_region_set_enabled(&xive->end_source.esb_mmio, false);
+}
+
 /*
  * When a Virtual Processor is scheduled to run on a HW thread, the
  * hypervisor pushes its identifier in the OS CAM line. Emulate the