OvmfPkg: Apply uncrustify changes

[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 (\r
        QemuFwCfgFindFile (\r
          "etc/smbios/smbios-anchor",\r
          &Anchor,\r
          &AnchorSize\r
          )\r
        ) ||\r
      RETURN_ERROR (\r
        QemuFwCfgFindFile (\r
          "etc/smbios/smbios-tables",\r
          &Tables,\r
          &TablesSize\r
          )\r
        ) ||\r
      (TablesSize == 0))\r
  {\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
      {\r
        return RETURN_SUCCESS;\r
      }\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
      {\r
        return RETURN_SUCCESS;\r
      }\r
\r
      SmbiosVersion = (UINT16)(QemuAnchor.V3.MajorVersion << 8 |\r
                               QemuAnchor.V3.MinorVersion);\r
\r
      DEBUG ((\r
        DEBUG_INFO,\r
        "%a: SMBIOS 3.x DocRev from QEMU: 0x%02x\n",\r
        __FUNCTION__,\r
        QemuAnchor.V3.DocRev\r
        ));\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 ((\r
    DEBUG_INFO,\r
    "%a: SMBIOS version from QEMU: 0x%04x\n",\r
    __FUNCTION__,\r
    SmbiosVersion\r
    ));\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