diff --git a/OvmfPkg/SmmControl2Dxe/MmControlPei.c b/OvmfPkg/SmmControl2Dxe/MmControlPei.c
index 8feac62e32..3290b639c5 100644
--- a/OvmfPkg/SmmControl2Dxe/MmControlPei.c
+++ b/OvmfPkg/SmmControl2Dxe/MmControlPei.c
@@ -185,6 +185,7 @@ MmControlPeiEntryPoint (
   UINT32      PmBase;
   UINT32      SmiEnableVal;
   EFI_STATUS  Status;
+  BOOLEAN     NegotiationSuccessful;
 
   //
   // This module should only be included if SMRAM support is required.
@@ -244,6 +245,13 @@ MmControlPeiEntryPoint (
     goto FatalError;
   }
 
+  //
+  // QEMU can inject SMIs in different ways, negotiate our preferences.
+  //
+  NegotiationSuccessful = NegotiateSmiFeatures ();
+
+  ASSERT (NegotiationSuccessful);
+
   //
   // We have no pointers to convert to virtual addresses. The handle itself
   // doesn't matter, as protocol services are not accessible at runtime.