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rdrand.cpp
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42 lines (38 loc) · 1.09 KB
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// This file is a part of the IncludeOS unikernel - www.includeos.org
//
// Copyright 2015 Oslo and Akershus University College of Applied Sciences
// and Alfred Bratterud
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <kernel/rdrand.hpp>
#include <kernel/cpuid.hpp>
#define __MM_MALLOC_H
#include <immintrin.h>
bool rdrand16(uint16_t* result)
{
int res = 0;
while (res == 0)
{
res = _rdrand16_step(result);
}
return (res == 1);
}
bool rdrand32(uint32_t* result)
{
int res = 0;
while (res == 0)
{
res = _rdrand32_step(result);
}
return (res == 1);
}