OvmfPkg: S3 Resume: fake LockBox protocol for BootScriptExecutorDxe

BootScriptExecutorDxe, to be pulled in in the next patch, was written with
the SMM implementation of LockBox in mind. That implementation is split in
the following three parts:

- client side (DXE/PEI) library,
- SMM driver producing gEfiLockBoxProtocolGuid,
- driver side (SMM) library.

BootScriptExecutorDxe includes the client side LockBoxLib. So that the
library can communicate with the SMM LockBox driver, BootScriptExecutorDxe
has a Depex on gEfiLockBoxProtocolGuid, normally installed by the SMM
LockBox driver. This is actually not a hard dependency, it just ensures
correct load order between BootScriptExecutorDxe and
MdeModulePkg/Universal/LockBox/SmmLockBox.

The (client side) LockBox library instance in OVMF doesn't depend on a
separate driver that produces gEfiLockBoxProtocolGuid. Nothing  produces
that GUID right now in OVMF. This prevents BootScriptExecutorDxe from
loading.

Install gEfiLockBoxProtocolGuid in our only S3-specific, custom DXE
driver, in order to enable loading of BootScriptExecutorDxe.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15306 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/AcpiS3SaveDxe/AcpiS3Save.c

@@ -30,6 +30,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/AcpiS3Save.h>
 #include <Protocol/S3SaveState.h>
 #include <Protocol/DxeSmmReadyToLock.h>
+#include <Protocol/LockBox.h>
 #include <IndustryStandard/Acpi.h>
 
 #include "AcpiS3Save.h"
@@ -594,11 +595,11 @@ InstallAcpiS3Save (
     mLegacyRegionSize = 0x100;
   }
 
-  Status = gBS->InstallProtocolInterface (
+  Status = gBS->InstallMultipleProtocolInterfaces (
                   &ImageHandle,
-                  &gEfiAcpiS3SaveProtocolGuid,
-                  EFI_NATIVE_INTERFACE,
-                  &mS3Save
+                  &gEfiAcpiS3SaveProtocolGuid, &mS3Save,
+                  &gEfiLockBoxProtocolGuid, NULL,
+                  NULL
                   );
   ASSERT_EFI_ERROR (Status);
   return Status;

OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf

@@ -59,6 +59,7 @@
 
 [Protocols]
   gEfiAcpiS3SaveProtocolGuid                    # PROTOCOL ALWAYS_PRODUCED
+  gEfiLockBoxProtocolGuid                       # PROTOCOL ALWAYS_PRODUCED
   gEfiLegacyBiosProtocolGuid                    # PROTOCOL ALWAYS_CONSUMED
   gEfiLegacyRegion2ProtocolGuid                 # PROTOCOL SOMETIMES_CONSUMED
   gFrameworkEfiMpServiceProtocolGuid            # PROTOCOL SOMETIMES_CONSUMED