1de9707f9SLawrence Tang /** 2*efe17e2cSLawrence Tang * Functions for generating pseudo-random CXL component 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 CXL component 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_cxl_component(void** location) 15de9707f9SLawrence Tang { 16de9707f9SLawrence Tang //Create a random length for the CXL component event log. 17de9707f9SLawrence Tang //The logs attached here do not necessarily conform to the specification, and are simply random. 18de9707f9SLawrence Tang int log_len = rand() % 64; 19de9707f9SLawrence Tang 20de9707f9SLawrence Tang //Create random bytes. 21de9707f9SLawrence Tang int size = 32 + 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; 27de9707f9SLawrence Tang UINT16* slot_number = (UINT16*)(bytes + 21); 28de9707f9SLawrence Tang *slot_number &= ~0b111; //Device ID slot number bits 0-2. 29de9707f9SLawrence Tang *(bytes + 23) = 0; //Device ID byte 11. 30de9707f9SLawrence Tang 31de9707f9SLawrence Tang //Set expected values. 32de9707f9SLawrence Tang UINT32* length = (UINT32*)bytes; 33de9707f9SLawrence Tang *length = size; 34de9707f9SLawrence Tang 35de9707f9SLawrence Tang //Set return values, exit. 36de9707f9SLawrence Tang *location = bytes; 37de9707f9SLawrence Tang return size; 38de9707f9SLawrence Tang }