OvmfPkg: control PXEv4 / PXEv6 boot support from the QEMU command line

[mirror_edk2.git] / OvmfPkg / Library / PxeBcPcdProducerLib / PxeBcPcd.c

/** @file\r
  Configure some PCDs dynamically for\r
  "NetworkPkg/UefiPxeBcDxe/UefiPxeBcDxe.inf", from QEMU's fw_cfg.\r
\r
  Copyright (C) 2020, Red Hat, Inc.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
**/\r
\r
#include <Library/PcdLib.h>\r
#include <Library/QemuFwCfgSimpleParserLib.h>\r
\r
RETURN_STATUS\r
EFIAPI\r
SetPxeBcPcds (\r
  VOID\r
  )\r
{\r
  BOOLEAN       FwCfgBool;\r
  RETURN_STATUS PcdStatus;\r
\r
  if (!RETURN_ERROR (QemuFwCfgParseBool ("opt/org.tianocore/IPv4PXESupport",\r
                       &FwCfgBool))) {\r
    PcdStatus = PcdSet8S (PcdIPv4PXESupport, FwCfgBool);\r
    if (RETURN_ERROR (PcdStatus)) {\r
      return PcdStatus;\r
    }\r
  }\r
\r
  if (!RETURN_ERROR (QemuFwCfgParseBool ("opt/org.tianocore/IPv6PXESupport",\r
                       &FwCfgBool))) {\r
    PcdStatus = PcdSet8S (PcdIPv6PXESupport, FwCfgBool);\r
    if (RETURN_ERROR (PcdStatus)) {\r
      return PcdStatus;\r
    }\r
  }\r
\r
  return RETURN_SUCCESS;\r
}\r