diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index ced6f803a4..59930dd9d0 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -776,6 +776,8 @@ static const VMStateDescription vmstate_ich9_lpc = {
 
 static Property ich9_lpc_properties[] = {
     DEFINE_PROP_BOOL("noreboot", ICH9LPCState, pin_strap.spkr_hi, true),
+    DEFINE_PROP_BIT64("x-smi-broadcast", ICH9LPCState, smi_host_features,
+                      ICH9_LPC_SMI_F_BROADCAST_BIT, true),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 5a20c5e38e..b89441d2c4 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -381,6 +381,12 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
         .property = "x-mach-use-reliable-get-clock",\
         .value    = "off",\
     },\
+    {\
+        .driver   = "ICH9-LPC",\
+        .property = "x-smi-broadcast",\
+        .value    = "off",\
+    },\
+
 
 #define PC_COMPAT_2_7 \
     HW_COMPAT_2_7 \