UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / SecurityPkg / Library / Tpm12CommandLib / Tpm12GetCapability.c

/** @file\r
  Implement TPM1.2 Get Capabilities related commands.\r
\r
Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved. <BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiPei.h>\r
#include <Library/Tpm12CommandLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/Tpm12DeviceLib.h>\r
\r
#pragma pack(1)\r
\r
typedef struct {\r
  TPM_RQU_COMMAND_HDR    Hdr;\r
  UINT32                 Capability;\r
  UINT32                 CapabilityFlagSize;\r
  UINT32                 CapabilityFlag;\r
} TPM_CMD_GET_CAPABILITY;\r
\r
typedef struct {\r
  TPM_RSP_COMMAND_HDR    Hdr;\r
  UINT32                 ResponseSize;\r
  TPM_PERMANENT_FLAGS    Flags;\r
} TPM_RSP_GET_CAPABILITY_PERMANENT_FLAGS;\r
\r
typedef struct {\r
  TPM_RSP_COMMAND_HDR    Hdr;\r
  UINT32                 ResponseSize;\r
  TPM_STCLEAR_FLAGS      Flags;\r
} TPM_RSP_GET_CAPABILITY_STCLEAR_FLAGS;\r
\r
#pragma pack()\r
\r
/**\r
Get TPM capability permanent flags.\r
\r
@param[out] TpmPermanentFlags   Pointer to the buffer for returned flag structure.\r
\r
@retval EFI_SUCCESS           Operation completed successfully.\r
@retval EFI_TIMEOUT           The register can't run into the expected status in time.\r
@retval EFI_BUFFER_TOO_SMALL  Response data buffer is too small.\r
@retval EFI_DEVICE_ERROR      Unexpected device behavior.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tpm12GetCapabilityFlagPermanent (\r
  OUT TPM_PERMANENT_FLAGS  *TpmPermanentFlags\r
  )\r
{\r
  EFI_STATUS                              Status;\r
  TPM_CMD_GET_CAPABILITY                  Command;\r
  TPM_RSP_GET_CAPABILITY_PERMANENT_FLAGS  Response;\r
  UINT32                                  Length;\r
\r
  //\r
  // send Tpm command TPM_ORD_GetCapability\r
  //\r
  Command.Hdr.tag            = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
  Command.Hdr.paramSize      = SwapBytes32 (sizeof (Command));\r
  Command.Hdr.ordinal        = SwapBytes32 (TPM_ORD_GetCapability);\r
  Command.Capability         = SwapBytes32 (TPM_CAP_FLAG);\r
  Command.CapabilityFlagSize = SwapBytes32 (sizeof (TPM_CAP_FLAG_PERMANENT));\r
  Command.CapabilityFlag     = SwapBytes32 (TPM_CAP_FLAG_PERMANENT);\r
  Length                     = sizeof (Response);\r
  Status                     = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  if (SwapBytes32 (Response.Hdr.returnCode) != TPM_SUCCESS) {\r
    DEBUG ((DEBUG_ERROR, "Tpm12GetCapabilityFlagPermanent: Response Code error! 0x%08x\r\n", SwapBytes32 (Response.Hdr.returnCode)));\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  ZeroMem (TpmPermanentFlags, sizeof (*TpmPermanentFlags));\r
  CopyMem (TpmPermanentFlags, &Response.Flags, MIN (sizeof (*TpmPermanentFlags), SwapBytes32 (Response.ResponseSize)));\r
\r
  return Status;\r
}\r
\r
/**\r
Get TPM capability volatile flags.\r
\r
@param[out] VolatileFlags   Pointer to the buffer for returned flag structure.\r
\r
@retval EFI_SUCCESS      Operation completed successfully.\r
@retval EFI_DEVICE_ERROR The command was unsuccessful.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tpm12GetCapabilityFlagVolatile (\r
  OUT TPM_STCLEAR_FLAGS  *VolatileFlags\r
  )\r
{\r
  EFI_STATUS                            Status;\r
  TPM_CMD_GET_CAPABILITY                Command;\r
  TPM_RSP_GET_CAPABILITY_STCLEAR_FLAGS  Response;\r
  UINT32                                Length;\r
\r
  //\r
  // send Tpm command TPM_ORD_GetCapability\r
  //\r
  Command.Hdr.tag            = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
  Command.Hdr.paramSize      = SwapBytes32 (sizeof (Command));\r
  Command.Hdr.ordinal        = SwapBytes32 (TPM_ORD_GetCapability);\r
  Command.Capability         = SwapBytes32 (TPM_CAP_FLAG);\r
  Command.CapabilityFlagSize = SwapBytes32 (sizeof (TPM_CAP_FLAG_VOLATILE));\r
  Command.CapabilityFlag     = SwapBytes32 (TPM_CAP_FLAG_VOLATILE);\r
  Length                     = sizeof (Response);\r
  Status                     = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  if (SwapBytes32 (Response.Hdr.returnCode) != TPM_SUCCESS) {\r
    DEBUG ((DEBUG_ERROR, "Tpm12GetCapabilityFlagVolatile: Response Code error! 0x%08x\r\n", SwapBytes32 (Response.Hdr.returnCode)));\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  ZeroMem (VolatileFlags, sizeof (*VolatileFlags));\r
  CopyMem (VolatileFlags, &Response.Flags, MIN (sizeof (*VolatileFlags), SwapBytes32 (Response.ResponseSize)));\r
\r
  return Status;\r
}\r