include/hw/misc/xlnx-versal-trng.h

   1 /*
   2  * Non-crypto strength model of the True Random Number Generator
   3  * in the AMD/Xilinx Versal device family.
   4  *
   5  * Copyright (c) 2017-2020 Xilinx Inc.
   6  * Copyright (c) 2023 Advanced Micro Devices, Inc.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  */
  26 #ifndef XLNX_VERSAL_TRNG_H
  27 #define XLNX_VERSAL_TRNG_H
  28
  29 #include "hw/irq.h"
  30 #include "hw/sysbus.h"
  31 #include "hw/register.h"
  32
  33 #define TYPE_XLNX_VERSAL_TRNG "xlnx.versal-trng"
  34 OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalTRng, XLNX_VERSAL_TRNG);
  35
  36 #define RMAX_XLNX_VERSAL_TRNG ((0xf0 / 4) + 1)
  37
  38 typedef struct XlnxVersalTRng {
  39     SysBusDevice parent_obj;
  40     qemu_irq irq;
  41     GRand *prng;
  42
  43     uint32_t hw_version;
  44     uint32_t forced_faults;
  45
  46     uint32_t rand_count;
  47     uint64_t rand_reseed;
  48
  49     uint64_t forced_prng_seed;
  50     uint64_t forced_prng_count;
  51     uint64_t tst_seed[2];
  52
  53     RegisterInfoArray *reg_array;
  54     uint32_t regs[RMAX_XLNX_VERSAL_TRNG];
  55     RegisterInfo regs_info[RMAX_XLNX_VERSAL_TRNG];
  56 } XlnxVersalTRng;
  57
  58 #undef RMAX_XLNX_VERSAL_TRNG
  59 #endif