diff --git a/OvmfPkg/Include/Library/XenHypercallLib.h b/OvmfPkg/Include/Library/XenHypercallLib.h
index c43822782b..c1491dd652 100644
--- a/OvmfPkg/Include/Library/XenHypercallLib.h
+++ b/OvmfPkg/Include/Library/XenHypercallLib.h
@@ -10,6 +10,18 @@
 #ifndef __XEN_HYPERCALL_LIB_H__
 #define __XEN_HYPERCALL_LIB_H__
 
+/**
+  To call when the gEfiXenInfoGuid HOB became available after the library init
+  function has already been executed.
+
+  This allow to make hypercall in the PEIM stage.
+**/
+RETURN_STATUS
+EFIAPI
+XenHypercallLibInit (
+  VOID
+  );
+
 /**
   Check if the Xen Hypercall library is able to make calls to the Xen
   hypervisor.
diff --git a/OvmfPkg/Library/XenHypercallLib/X86XenHypercall.c b/OvmfPkg/Library/XenHypercallLib/X86XenHypercall.c
index 27083f924f..f779e46470 100644
--- a/OvmfPkg/Library/XenHypercallLib/X86XenHypercall.c
+++ b/OvmfPkg/Library/XenHypercallLib/X86XenHypercall.c
@@ -59,13 +59,7 @@ XenHypercallLibInit (
 
   GuidHob = GetFirstGuidHob (&gEfiXenInfoGuid);
   if (GuidHob == NULL) {
-    //
-    // We don't fail library construction, since that has catastrophic
-    // consequences for client modules (whereas those modules may easily be
-    // running on a non-Xen platform). Instead, XenHypercallIsAvailable() above
-    // will return FALSE.
-    //
-    return RETURN_SUCCESS;
+    return RETURN_NOT_FOUND;
   }
   XenInfo = (EFI_XEN_INFO *) GET_GUID_HOB_DATA (GuidHob);
   HyperPage = XenInfo->HyperPages;
diff --git a/OvmfPkg/Library/XenHypercallLib/XenHypercall.c b/OvmfPkg/Library/XenHypercallLib/XenHypercall.c
index a2c41a2a69..d4fa802743 100644
--- a/OvmfPkg/Library/XenHypercallLib/XenHypercall.c
+++ b/OvmfPkg/Library/XenHypercallLib/XenHypercall.c
@@ -15,6 +15,22 @@
 #include <Library/DebugLib.h>
 #include <Library/XenHypercallLib.h>
 
+RETURN_STATUS
+EFIAPI
+XenHypercallLibConstruct (
+  VOID
+  )
+{
+  XenHypercallLibInit ();
+  //
+  // We don't fail library construction, since that has catastrophic
+  // consequences for client modules (whereas those modules may easily be
+  // running on a non-Xen platform). Instead, XenHypercallIsAvailable()
+  // will return FALSE.
+  //
+  return RETURN_SUCCESS;
+}
+
 UINT64
 EFIAPI
 XenHypercallHvmGetParam (
diff --git a/OvmfPkg/Library/XenHypercallLib/XenHypercallLib.inf b/OvmfPkg/Library/XenHypercallLib/XenHypercallLib.inf
index 1208f0057a..21ce5b4434 100644
--- a/OvmfPkg/Library/XenHypercallLib/XenHypercallLib.inf
+++ b/OvmfPkg/Library/XenHypercallLib/XenHypercallLib.inf
@@ -12,10 +12,10 @@
   FILE_GUID                      = B5EE9A32-CA5A-49A8-82E3-ADA4CCB77C7C
   MODULE_TYPE                    = BASE
   VERSION_STRING                 = 1.0
-  CONSTRUCTOR                    = XenHypercallLibInit
+  CONSTRUCTOR                    = XenHypercallLibConstruct
 
 [Defines.IA32, Defines.X64]
-  LIBRARY_CLASS                  = XenHypercallLib|DXE_DRIVER UEFI_DRIVER
+  LIBRARY_CLASS                  = XenHypercallLib|PEIM DXE_DRIVER UEFI_DRIVER
 
 [Defines.ARM, Defines.AARCH64]
   LIBRARY_CLASS                  = XenHypercallLib