1 files changed, 7 insertions, 0 deletions
diff --git a/hw/acpi.c b/hw/acpi.c
index 45963d37e8..66a5faa0fd 100644
--- a/hw/acpi.c
+++ b/hw/acpi.c
@@ -23,6 +23,7 @@
 #include "sysemu.h"
 #include "i2c.h"
 #include "smbus.h"
+#include "kvm.h"
 
 //#define DEBUG
 
@@ -501,6 +502,12 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
 
     register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s);
 
+    if (kvm_enabled()) {
+        /* Mark SMM as already inited to prevent SMM from running.  KVM does not
+         * support SMM mode. */
+        pci_conf[0x5B] = 0x02;
+    }
+
     /* XXX: which specification is used ? The i82731AB has different
        mappings */
     pci_conf[0x5f] = (parallel_hds[0] != NULL ? 0x80 : 0) | 0x10;