1*de9707f9SLawrence Tang /** 2*de9707f9SLawrence Tang * Functions for generating psuedo-random CPER PCIe error sections. 3*de9707f9SLawrence Tang * 4*de9707f9SLawrence Tang * Author: Lawrence.Tang@arm.com 5*de9707f9SLawrence Tang **/ 6*de9707f9SLawrence Tang 7*de9707f9SLawrence Tang #include <stdlib.h> 8*de9707f9SLawrence Tang #include "../../edk/BaseTypes.h" 9*de9707f9SLawrence Tang #include "../gen-utils.h" 10*de9707f9SLawrence Tang #include "gen-sections.h" 11*de9707f9SLawrence Tang 12*de9707f9SLawrence Tang #define PCIE_PORT_TYPES (int []){0, 1, 4, 5, 6, 7, 8, 9, 10} 13*de9707f9SLawrence Tang 14*de9707f9SLawrence Tang //Generates a single psuedo-random PCIe error section, saving the resulting address to the given 15*de9707f9SLawrence Tang //location. Returns the size of the newly created section. 16*de9707f9SLawrence Tang size_t generate_section_pcie(void** location) 17*de9707f9SLawrence Tang { 18*de9707f9SLawrence Tang //Create random bytes. 19*de9707f9SLawrence Tang int size = 208; 20*de9707f9SLawrence Tang UINT8* bytes = generate_random_bytes(size); 21*de9707f9SLawrence Tang 22*de9707f9SLawrence Tang //Set reserved areas to zero. 23*de9707f9SLawrence Tang UINT64* validation = (UINT64*)bytes; 24*de9707f9SLawrence Tang *validation &= 0xFF; //Validation 8-63 25*de9707f9SLawrence Tang UINT32* version = (UINT32*)(bytes + 12); 26*de9707f9SLawrence Tang *version &= 0xFFFF; //Version bytes 2-3 27*de9707f9SLawrence Tang UINT32* reserved = (UINT32*)(bytes + 20); 28*de9707f9SLawrence Tang *reserved = 0; //Reserved bytes 20-24 29*de9707f9SLawrence Tang *(bytes + 39) = 0; //Device ID byte 15 30*de9707f9SLawrence Tang 31*de9707f9SLawrence Tang //Fix values that could be above range. 32*de9707f9SLawrence Tang UINT32* port_type = (UINT32*)(bytes + 8); 33*de9707f9SLawrence Tang *port_type = PCIE_PORT_TYPES[rand() % (sizeof(PCIE_PORT_TYPES) / sizeof(int))]; 34*de9707f9SLawrence Tang 35*de9707f9SLawrence Tang //Set return values, exit. 36*de9707f9SLawrence Tang *location = bytes; 37*de9707f9SLawrence Tang return size; 38*de9707f9SLawrence Tang }