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9344f09215
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/** @file
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IA-32/x64 AsmRdRandxx()
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Generates random number through CPU RdRand instruction.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "BaseLibInternals.h"
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/**
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Generates a 16-bit random number through RDRAND instruction.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the random result.
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@retval TRUE RDRAND call was successful.
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@retval FALSE Failed attempts to call RDRAND.
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**/
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BOOLEAN
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EFIAPI
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AsmRdRand16 (
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OUT UINT16 *Rand
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)
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{
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ASSERT (Rand != NULL);
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return InternalX86RdRand16 (Rand);
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}
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/**
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Generates a 32-bit random number through RDRAND instruction.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the random result.
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@retval TRUE RDRAND call was successful.
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@retval FALSE Failed attempts to call RDRAND.
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**/
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BOOLEAN
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EFIAPI
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AsmRdRand32 (
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OUT UINT32 *Rand
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)
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{
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ASSERT (Rand != NULL);
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return InternalX86RdRand32 (Rand);
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}
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/**
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Generates a 64-bit random number through RDRAND instruction.
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if Rand is NULL, then ASSERT().
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@param[out] Rand Buffer pointer to store the random result.
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@retval TRUE RDRAND call was successful.
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@retval FALSE Failed attempts to call RDRAND.
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**/
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BOOLEAN
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EFIAPI
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AsmRdRand64 (
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OUT UINT64 *Rand
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)
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{
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ASSERT (Rand != NULL);
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return InternalX86RdRand64 (Rand);
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}
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