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-rw-r--r--hw/core/machine.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 970046f438..4386f57b5c 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -36,7 +36,10 @@
 #include "hw/virtio/virtio.h"
 #include "hw/virtio/virtio-pci.h"
 
-GlobalProperty hw_compat_5_2[] = {};
+GlobalProperty hw_compat_5_2[] = {
+    { "ICH9-LPC", "smm-compat", "on"},
+    { "PIIX4_PM", "smm-compat", "on"},
+};
 const size_t hw_compat_5_2_len = G_N_ELEMENTS(hw_compat_5_2);
 
 GlobalProperty hw_compat_5_1[] = {