IntelFsp2Pkg: Removing FSP Data Table

[mirror_edk2.git] / OvmfPkg / SmbiosPlatformDxe / Qemu.c

/** @file\r
  Find and extract QEMU SMBIOS data from fw_cfg.\r
\r
  Copyright (C) 2014, Gabriel L. Somlo <somlo@cmu.edu>\r
\r
  This program and the accompanying materials are licensed and made\r
  available under the terms and conditions of the BSD License which\r
  accompanies this distribution.   The full text of the license may\r
  be found at http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
**/\r
\r
#include "SmbiosPlatformDxe.h"\r
#include <Library/QemuFwCfgLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/PcdLib.h>\r
\r
/**\r
  Locates and extracts the QEMU SMBIOS data if present in fw_cfg\r
\r
  @return                 Address of extracted QEMU SMBIOS data\r
\r
**/\r
UINT8 *\r
GetQemuSmbiosTables (\r
  VOID\r
  )\r
{\r
  EFI_STATUS               Status;\r
  FIRMWARE_CONFIG_ITEM     Tables;\r
  UINTN                    TablesSize;\r
  UINT8                    *QemuTables;\r
\r
  if (!PcdGetBool (PcdQemuSmbiosValidated)) {\r
    return NULL;\r
  }\r
\r
  Status = QemuFwCfgFindFile ("etc/smbios/smbios-tables", &Tables,\r
             &TablesSize);\r
  ASSERT_EFI_ERROR (Status);\r
  ASSERT (TablesSize > 0);\r
\r
  QemuTables = AllocatePool (TablesSize);\r
  if (QemuTables == NULL) {\r
    return NULL;\r
  }\r
\r
  QemuFwCfgSelectItem (Tables);\r
  QemuFwCfgReadBytes (TablesSize, QemuTables);\r
\r
  return QemuTables;\r
}\r