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/** @file
Architecture specific interface to RNG functionality.
Copyright (c) 2021, NUVIA Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef BASE_RNGLIB_INTERNALS_H_
/**
Generates a 16-bit random number.
@param[out] Rand Buffer pointer to store the 16-bit random value.
@retval TRUE Random number generated successfully.
@retval FALSE Failed to generate the random number.
**/
BOOLEAN
EFIAPI
ArchGetRandomNumber16 (
OUT UINT16 *Rand
);
/**
Generates a 32-bit random number.
@param[out] Rand Buffer pointer to store the 32-bit random value.
@retval TRUE Random number generated successfully.
@retval FALSE Failed to generate the random number.
**/
BOOLEAN
EFIAPI
ArchGetRandomNumber32 (
OUT UINT32 *Rand
);
/**
Generates a 64-bit random number.
@param[out] Rand Buffer pointer to store the 64-bit random value.
@retval TRUE Random number generated successfully.
@retval FALSE Failed to generate the random number.
**/
BOOLEAN
EFIAPI
ArchGetRandomNumber64 (
OUT UINT64 *Rand
);
/**
Checks whether the RNG instruction is supported.
@retval TRUE RNG instruction is supported.
@retval FALSE RNG instruction is not supported.
**/
BOOLEAN
EFIAPI
ArchIsRngSupported (
VOID
);
#if defined (MDE_CPU_AARCH64)
// RNDR, Random Number
#define RNDR S3_3_C2_C4_0
#endif
#endif // BASE_RNGLIB_INTERNALS_H_
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