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0222bb0fc1
Tracked-On: #8834 Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Reviewed-by: Fei Li <fei1.li@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>
20 lines
294 B
C
20 lines
294 B
C
/*
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* Copyright (C) 2025 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <types.h>
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uint64_t arch_get_random_value(void)
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{
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uint64_t random;
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asm volatile ("1: rdrand %%rax\n"
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"jnc 1b\n"
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"mov %%rax, %0\n"
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: "=r"(random)
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:
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:"%rax");
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return random;
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} |