1de9707f9SLawrence Tang /** 2*efe17e2cSLawrence Tang * Functions for generating pseudo-random CCIX PER error sections. 3de9707f9SLawrence Tang * 4de9707f9SLawrence Tang * Author: Lawrence.Tang@arm.com 5de9707f9SLawrence Tang **/ 6de9707f9SLawrence Tang 7de9707f9SLawrence Tang #include <stdlib.h> 8de9707f9SLawrence Tang #include "../../edk/BaseTypes.h" 9de9707f9SLawrence Tang #include "../gen-utils.h" 10de9707f9SLawrence Tang #include "gen-sections.h" 11de9707f9SLawrence Tang 12*efe17e2cSLawrence Tang //Generates a single pseudo-random CCIX PER error section, saving the resulting address to the given 13de9707f9SLawrence Tang //location. Returns the size of the newly created section. 14de9707f9SLawrence Tang size_t generate_section_ccix_per(void** location) 15de9707f9SLawrence Tang { 16de9707f9SLawrence Tang //Create a random length for the CCIX PER log. 17de9707f9SLawrence Tang //The log attached here does not necessarily conform to the CCIX specification, and is simply random. 18de9707f9SLawrence Tang int log_len = (rand() % 5 + 1) * 32; 19de9707f9SLawrence Tang 20de9707f9SLawrence Tang //Create random bytes. 21de9707f9SLawrence Tang int size = 16 + log_len; 22de9707f9SLawrence Tang UINT8* bytes = generate_random_bytes(size); 23de9707f9SLawrence Tang 24de9707f9SLawrence Tang //Set reserved areas to zero. 25de9707f9SLawrence Tang UINT64* validation = (UINT64*)(bytes + 4); 26de9707f9SLawrence Tang *validation &= 0b111; //Validation bits 3-63. 27de9707f9SLawrence Tang *(bytes + 13) &= 0b11111; //CCIX port ID bits 5-7. 28de9707f9SLawrence Tang UINT16* reserved = (UINT16*)(bytes + 14); 29de9707f9SLawrence Tang *reserved = 0; //Reserved bytes 14-15. 30de9707f9SLawrence Tang 31d34f2b11SLawrence Tang //Set expected values. 32d34f2b11SLawrence Tang UINT32* length = (UINT32*)bytes; 33d34f2b11SLawrence Tang *length = size; 34d34f2b11SLawrence Tang 35de9707f9SLawrence Tang //Set return values, exit. 36de9707f9SLawrence Tang *location = bytes; 37de9707f9SLawrence Tang return size; 38de9707f9SLawrence Tang }