2 files changed, 72 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcd.c b/roms/edk2/OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcd.c
new file mode 100644
index 000000000..7ce236326
--- /dev/null
+++ b/roms/edk2/OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcd.c
@@ -0,0 +1,39 @@
+/** @file
+  Configure some PCDs dynamically for
+  "NetworkPkg/UefiPxeBcDxe/UefiPxeBcDxe.inf", from QEMU's fw_cfg.
+
+  Copyright (C) 2020, Red Hat, Inc.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <Library/PcdLib.h>
+#include <Library/QemuFwCfgSimpleParserLib.h>
+
+RETURN_STATUS
+EFIAPI
+SetPxeBcPcds (
+  VOID
+  )
+{
+  BOOLEAN       FwCfgBool;
+  RETURN_STATUS PcdStatus;
+
+  if (!RETURN_ERROR (QemuFwCfgParseBool ("opt/org.tianocore/IPv4PXESupport",
+                       &FwCfgBool))) {
+    PcdStatus = PcdSet8S (PcdIPv4PXESupport, FwCfgBool);
+    if (RETURN_ERROR (PcdStatus)) {
+      return PcdStatus;
+    }
+  }
+
+  if (!RETURN_ERROR (QemuFwCfgParseBool ("opt/org.tianocore/IPv6PXESupport",
+                       &FwCfgBool))) {
+    PcdStatus = PcdSet8S (PcdIPv6PXESupport, FwCfgBool);
+    if (RETURN_ERROR (PcdStatus)) {
+      return PcdStatus;
+    }
+  }
+
+  return RETURN_SUCCESS;
+}
diff --git a/roms/edk2/OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcdProducerLib.inf b/roms/edk2/OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcdProducerLib.inf
new file mode 100644
index 000000000..948133228
--- /dev/null
+++ b/roms/edk2/OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcdProducerLib.inf
@@ -0,0 +1,33 @@
+## @file
+# Configure some PCDs dynamically for
+# "NetworkPkg/UefiPxeBcDxe/UefiPxeBcDxe.inf", from QEMU's fw_cfg.
+#
+# Copyright (C) 2020, Red Hat, Inc.
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+  INF_VERSION                    = 1.29
+  BASE_NAME                      = PxeBcPcdProducerLib
+  FILE_GUID                      = 1da2723f-52df-432a-8d03-6e8fa8acc107
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = NULL
+  CONSTRUCTOR                    = SetPxeBcPcds
+
+[Sources]
+  PxeBcPcd.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  NetworkPkg/NetworkPkg.dec
+  OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+  PcdLib
+  QemuFwCfgSimpleParserLib
+
+[Pcd]
+  gEfiNetworkPkgTokenSpaceGuid.PcdIPv4PXESupport       ## SOMETIMES_PRODUCES
+  gEfiNetworkPkgTokenSpaceGuid.PcdIPv6PXESupport       ## SOMETIMES_PRODUCES