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 uint32_t regs[RMAX_XLNX_VERSAL_TRNG]; 54 RegisterInfo regs_info[RMAX_XLNX_VERSAL_TRNG]; 55 } XlnxVersalTRng; 56 57 #undef RMAX_XLNX_VERSAL_TRNG 58 #endif 59