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

[mirror_edk2.git] / MdePkg / Library / BaseLib / X86RdRand.c

/** @file\r
  IA-32/x64 AsmRdRandxx()\r
  Generates random number through CPU RdRand instruction.\r
\r
  Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "BaseLibInternals.h"\r
\r
/**\r
  Generates a 16-bit random number through RDRAND instruction.\r
\r
  if Rand is NULL, then ASSERT().\r
\r
  @param[out]  Rand     Buffer pointer to store the random result.\r
\r
  @retval TRUE          RDRAND call was successful.\r
  @retval FALSE         Failed attempts to call RDRAND.\r
\r
 **/\r
BOOLEAN\r
EFIAPI\r
AsmRdRand16 (\r
  OUT     UINT16  *Rand\r
  )\r
{\r
  ASSERT (Rand != NULL);\r
  return InternalX86RdRand16 (Rand);\r
}\r
\r
/**\r
  Generates a 32-bit random number through RDRAND instruction.\r
\r
  if Rand is NULL, then ASSERT().\r
\r
  @param[out]  Rand     Buffer pointer to store the random result.\r
\r
  @retval TRUE          RDRAND call was successful.\r
  @retval FALSE         Failed attempts to call RDRAND.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
AsmRdRand32 (\r
  OUT     UINT32  *Rand\r
  )\r
{\r
  ASSERT (Rand != NULL);\r
  return InternalX86RdRand32 (Rand);\r
}\r
\r
/**\r
  Generates a 64-bit random number through RDRAND instruction.\r
\r
  if Rand is NULL, then ASSERT().\r
\r
  @param[out]  Rand     Buffer pointer to store the random result.\r
\r
  @retval TRUE          RDRAND call was successful.\r
  @retval FALSE         Failed attempts to call RDRAND.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
AsmRdRand64  (\r
  OUT     UINT64  *Rand\r
  )\r
{\r
  ASSERT (Rand != NULL);\r
  return InternalX86RdRand64 (Rand);\r
}\r