[PATCH 4/7] OvmfPkg/QemuFwCfgDxeLib: allow UEFI_DRIVER modules

["Laszlo Ersek" <lersek@redhat.com>]

We don't distribute UEFI_DRIVER modules stand-alone that were built as
part of an OVMF platform. OVMF's UEFI_DRIVERs are allowed to inherit
platform dependencies.

By enabling UEFI_DRIVERs to consume QemuFwCfgDxeLib, we can hook
fw_cfg-based NULL class libraries into UEFI drivers, e.g. in order to set
dynamic PCDs.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Per Sundstrom <per_sundstrom@yahoo.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2681
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf
index c331c5e7220a..48899ff1236a 100644
--- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf
+++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf
@@ -16,7 +16,7 @@ [Defines]
   FILE_GUID                      = 80474090-55e7-4c28-b25c-9f236ba41f28
   MODULE_TYPE                    = BASE
   VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = QemuFwCfgLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER
+  LIBRARY_CLASS                  = QemuFwCfgLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER UEFI_DRIVER
 
   CONSTRUCTOR                    = QemuFwCfgInitialize
 
-- 
2.19.1.3.g30247aa5d201