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/** @file
Random number generator service that uses the RNDR instruction
to provide pseudorandom numbers.
Copyright (c) 2021, NUVIA Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef ARM_RNG_H_
#define ARM_RNG_H_
/**
Generates a random number using RNDR.
Returns TRUE on success; FALSE on failure.
@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
ArmRndr (
OUT UINT64 *Rand
);
/**
Reads the ID_AA64ISAR0 Register.
@return The contents of the ID_AA64ISAR0 register.
**/
UINT64
EFIAPI
ArmReadIdIsar0 (
VOID
);
#endif /* ARM_RNG_H_ */
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