OvmfPkg: replace old EFI_D_ debug levels with new DEBUG_ ones

[mirror_edk2.git] / OvmfPkg / Library / SmbiosVersionLib / DetectSmbiosVersionLib.c

/** @file\r
\r
  A hook-in library for MdeModulePkg/Universal/SmbiosDxe, in order to set\r
  gEfiMdeModulePkgTokenSpaceGuid.PcdSmbiosVersion (and possibly other PCDs)\r
  just before SmbiosDxe consumes them.\r
\r
  Copyright (C) 2013, 2015, Red Hat, Inc.\r
  Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <IndustryStandard/SmBios.h>\r
\r
#include <Base.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/QemuFwCfgLib.h>\r
\r
typedef union {\r
  SMBIOS_TABLE_ENTRY_POINT     V2;\r
  SMBIOS_TABLE_3_0_ENTRY_POINT V3;\r
} QEMU_SMBIOS_ANCHOR;\r
\r
RETURN_STATUS\r
EFIAPI\r
DetectSmbiosVersion (\r
  VOID\r
  )\r
{\r
  FIRMWARE_CONFIG_ITEM Anchor, Tables;\r
  UINTN                AnchorSize, TablesSize;\r
  QEMU_SMBIOS_ANCHOR   QemuAnchor;\r
  UINT16               SmbiosVersion;\r
  RETURN_STATUS        PcdStatus;\r
\r
  if (PcdGetBool (PcdQemuSmbiosValidated)) {\r
    //\r
    // Some other module, linked against this library, has already performed\r
    // the task at hand. This should never happen, but it's easy to handle;\r
    // just exit early.\r
    //\r
    return RETURN_SUCCESS;\r
  }\r
\r
  if (RETURN_ERROR (QemuFwCfgFindFile (\r
                      "etc/smbios/smbios-anchor", &Anchor, &AnchorSize)) ||\r
      RETURN_ERROR (QemuFwCfgFindFile (\r
                      "etc/smbios/smbios-tables", &Tables, &TablesSize)) ||\r
      TablesSize == 0) {\r
    return RETURN_SUCCESS;\r
  }\r
\r
  QemuFwCfgSelectItem (Anchor);\r
\r
  switch (AnchorSize) {\r
  case sizeof QemuAnchor.V2:\r
    QemuFwCfgReadBytes (AnchorSize, &QemuAnchor);\r
\r
    if (QemuAnchor.V2.MajorVersion != 2 ||\r
        QemuAnchor.V2.TableLength != TablesSize ||\r
        CompareMem (QemuAnchor.V2.AnchorString, "_SM_", 4) != 0 ||\r
        CompareMem (QemuAnchor.V2.IntermediateAnchorString, "_DMI_", 5) != 0) {\r
      return RETURN_SUCCESS;\r
    }\r
    SmbiosVersion = (UINT16)(QemuAnchor.V2.MajorVersion << 8 |\r
                             QemuAnchor.V2.MinorVersion);\r
    break;\r
\r
  case sizeof QemuAnchor.V3:\r
    QemuFwCfgReadBytes (AnchorSize, &QemuAnchor);\r
\r
    if (QemuAnchor.V3.MajorVersion != 3 ||\r
        QemuAnchor.V3.TableMaximumSize != TablesSize ||\r
        CompareMem (QemuAnchor.V3.AnchorString, "_SM3_", 5) != 0) {\r
      return RETURN_SUCCESS;\r
    }\r
    SmbiosVersion = (UINT16)(QemuAnchor.V3.MajorVersion << 8 |\r
                             QemuAnchor.V3.MinorVersion);\r
\r
    DEBUG ((DEBUG_INFO, "%a: SMBIOS 3.x DocRev from QEMU: 0x%02x\n",\r
      __FUNCTION__, QemuAnchor.V3.DocRev));\r
    PcdStatus = PcdSet8S (PcdSmbiosDocRev, QemuAnchor.V3.DocRev);\r
    ASSERT_RETURN_ERROR (PcdStatus);\r
    break;\r
\r
  default:\r
    return RETURN_SUCCESS;\r
  }\r
\r
  DEBUG ((DEBUG_INFO, "%a: SMBIOS version from QEMU: 0x%04x\n", __FUNCTION__,\r
    SmbiosVersion));\r
  PcdStatus = PcdSet16S (PcdSmbiosVersion, SmbiosVersion);\r
  ASSERT_RETURN_ERROR (PcdStatus);\r
\r
  //\r
  // SMBIOS platform drivers can now fetch and install\r
  // "etc/smbios/smbios-tables" from QEMU.\r
  //\r
  PcdStatus = PcdSetBoolS (PcdQemuSmbiosValidated, TRUE);\r
  ASSERT_RETURN_ERROR (PcdStatus);\r
  return RETURN_SUCCESS;\r
}\r