UefiCpuPkg/MpInitLib: Restore IDT context for APs.

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

/** @file\r
  This driver installs SMBIOS information for OVMF\r
\r
  Copyright (c) 2011, Bei Guan <gbtju85@gmail.com>\r
  Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "SmbiosPlatformDxe.h"\r
\r
#define TYPE0_STRINGS \\r
  "EFI Development Kit II / OVMF\0"     /* Vendor */ \\r
  "0.0.0\0"                             /* BiosVersion */ \\r
  "02/06/2015\0"                        /* BiosReleaseDate */\r
//\r
// Type definition and contents of the default Type 0 SMBIOS table.\r
//\r
#pragma pack(1)\r
typedef struct {\r
  SMBIOS_TABLE_TYPE0 Base;\r
  UINT8              Strings[sizeof(TYPE0_STRINGS)];\r
} OVMF_TYPE0;\r
#pragma pack()\r
\r
STATIC CONST OVMF_TYPE0 mOvmfDefaultType0 = {\r
  {\r
    // SMBIOS_STRUCTURE Hdr\r
    {\r
      EFI_SMBIOS_TYPE_BIOS_INFORMATION, // UINT8 Type\r
      sizeof (SMBIOS_TABLE_TYPE0),      // UINT8 Length\r
    },\r
    1,     // SMBIOS_TABLE_STRING       Vendor\r
    2,     // SMBIOS_TABLE_STRING       BiosVersion\r
    0xE800,// UINT16                    BiosSegment\r
    3,     // SMBIOS_TABLE_STRING       BiosReleaseDate\r
    0,     // UINT8                     BiosSize\r
    {      // MISC_BIOS_CHARACTERISTICS BiosCharacteristics\r
      0,     // Reserved                                      :2\r
      0,     // Unknown                                       :1\r
      1,     // BiosCharacteristicsNotSupported               :1\r
             // Remaining BiosCharacteristics bits left unset :60\r
    },\r
    {      // BIOSCharacteristicsExtensionBytes[2]\r
      0,     // BiosReserved\r
      0x1C   // SystemReserved = VirtualMachineSupported |\r
             //                  UefiSpecificationSupported |\r
             //                  TargetContentDistributionEnabled\r
    },\r
    0,     // UINT8                     SystemBiosMajorRelease\r
    0,     // UINT8                     SystemBiosMinorRelease\r
    0xFF,  // UINT8                     EmbeddedControllerFirmwareMajorRelease\r
    0xFF   // UINT8                     EmbeddedControllerFirmwareMinorRelease\r
  },\r
  // Text strings (unformatted area)\r
  TYPE0_STRINGS\r
};\r
\r
\r
/**\r
  Get SMBIOS record length.\r
\r
  @param  SmbiosTable   SMBIOS pointer.\r
\r
**/\r
UINTN\r
SmbiosTableLength (\r
  IN SMBIOS_STRUCTURE_POINTER SmbiosTable\r
  )\r
{\r
  CHAR8  *AChar;\r
  UINTN  Length;\r
\r
  AChar = (CHAR8 *)(SmbiosTable.Raw + SmbiosTable.Hdr->Length);\r
\r
  //\r
  // Each structure shall be terminated by a double-null (SMBIOS spec.7.1)\r
  //\r
  while ((*AChar != 0) || (*(AChar + 1) != 0)) {\r
    AChar ++;\r
  }\r
  Length = ((UINTN)AChar - (UINTN)SmbiosTable.Raw + 2);\r
\r
  return Length;\r
}\r
\r
\r
/**\r
  Install all structures from the given SMBIOS structures block\r
\r
  @param  Smbios               SMBIOS protocol\r
  @param  TableAddress         SMBIOS tables starting address\r
\r
**/\r
EFI_STATUS\r
InstallAllStructures (\r
  IN EFI_SMBIOS_PROTOCOL       *Smbios,\r
  IN UINT8                     *TableAddress\r
  )\r
{\r
  EFI_STATUS                Status;\r
  SMBIOS_STRUCTURE_POINTER  SmbiosTable;\r
  EFI_SMBIOS_HANDLE         SmbiosHandle;\r
  BOOLEAN                   NeedSmbiosType0;\r
\r
  SmbiosTable.Raw = TableAddress;\r
  if (SmbiosTable.Raw == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  NeedSmbiosType0 = TRUE;\r
\r
  while (SmbiosTable.Hdr->Type != 127) {\r
    //\r
    // Log the SMBIOS data for this structure\r
    //\r
    SmbiosHandle = SmbiosTable.Hdr->Handle;\r
    Status = Smbios->Add (\r
                       Smbios,\r
                       NULL,\r
                       &SmbiosHandle,\r
                       (EFI_SMBIOS_TABLE_HEADER*) SmbiosTable.Raw\r
                       );\r
    ASSERT_EFI_ERROR (Status);\r
\r
    if (SmbiosTable.Hdr->Type == 0) {\r
      NeedSmbiosType0 = FALSE;\r
    }\r
\r
    //\r
    // Get the next structure address\r
    //\r
    SmbiosTable.Raw = (UINT8 *)(SmbiosTable.Raw + SmbiosTableLength (SmbiosTable));\r
  }\r
\r
  if (NeedSmbiosType0) {\r
    //\r
    // Add OVMF default Type 0 (BIOS Information) table\r
    //\r
    SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;\r
    Status = Smbios->Add (\r
                       Smbios,\r
                       NULL,\r
                       &SmbiosHandle,\r
                       (EFI_SMBIOS_TABLE_HEADER*) &mOvmfDefaultType0\r
                       );\r
    ASSERT_EFI_ERROR (Status);\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  Installs SMBIOS information for OVMF\r
\r
  @param ImageHandle     Module's image handle\r
  @param SystemTable     Pointer of EFI_SYSTEM_TABLE\r
\r
  @retval EFI_SUCCESS    Smbios data successfully installed\r
  @retval Other          Smbios data was not installed\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SmbiosTablePublishEntry (\r
  IN EFI_HANDLE           ImageHandle,\r
  IN EFI_SYSTEM_TABLE     *SystemTable\r
  )\r
{\r
  EFI_STATUS                Status;\r
  EFI_SMBIOS_PROTOCOL       *Smbios;\r
  SMBIOS_TABLE_ENTRY_POINT  *EntryPointStructure;\r
  UINT8                     *SmbiosTables;\r
\r
  //\r
  // Find the SMBIOS protocol\r
  //\r
  Status = gBS->LocateProtocol (\r
                  &gEfiSmbiosProtocolGuid,\r
                  NULL,\r
                  (VOID**)&Smbios\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  //\r
  // Add Xen or QEMU SMBIOS data if found\r
  //\r
  EntryPointStructure = GetXenSmbiosTables ();\r
  if (EntryPointStructure != NULL) {\r
    SmbiosTables = (UINT8*)(UINTN)EntryPointStructure->TableAddress;\r
  } else {\r
    SmbiosTables = GetQemuSmbiosTables ();\r
  }\r
\r
  if (SmbiosTables != NULL) {\r
    Status = InstallAllStructures (Smbios, SmbiosTables);\r
\r
    //\r
    // Free SmbiosTables if allocated by Qemu (i.e., NOT by Xen):\r
    //\r
    if (EntryPointStructure == NULL) {\r
      FreePool (SmbiosTables);\r
    }\r
  }\r
\r
  return Status;\r
}\r