1*de9707f9SLawrence Tang /** 2*de9707f9SLawrence Tang * Functions for generating psuedo-random CPER PCI component 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 //Generates a single psuedo-random PCI component error section, saving the resulting address to the given 13*de9707f9SLawrence Tang //location. Returns the size of the newly created section. 14*de9707f9SLawrence Tang size_t generate_section_pci_dev(void** location) 15*de9707f9SLawrence Tang { 16*de9707f9SLawrence Tang //Generate how many register pairs will be attached to this section. 17*de9707f9SLawrence Tang UINT32 num_memory_pairs = rand() % 4; 18*de9707f9SLawrence Tang UINT32 num_io_pairs = rand() % 4; 19*de9707f9SLawrence Tang UINT32 num_registers = num_memory_pairs + num_io_pairs; 20*de9707f9SLawrence Tang 21*de9707f9SLawrence Tang //Create random bytes. 22*de9707f9SLawrence Tang int size = 40 + (num_registers * 16); 23*de9707f9SLawrence Tang UINT8* bytes = generate_random_bytes(size); 24*de9707f9SLawrence Tang 25*de9707f9SLawrence Tang //Set reserved areas to zero. 26*de9707f9SLawrence Tang UINT64* validation = (UINT64*)bytes; 27*de9707f9SLawrence Tang *validation &= 0b11111; //Validation 5-63 28*de9707f9SLawrence Tang for (int i=0; i<5; i++) 29*de9707f9SLawrence Tang *(bytes + 27 + i) = 0; //Bytes 11-15 of ID info. 30*de9707f9SLawrence Tang 31*de9707f9SLawrence Tang //Fix error status. 32*de9707f9SLawrence Tang create_valid_error_section(bytes + 8); 33*de9707f9SLawrence Tang 34*de9707f9SLawrence Tang //Set return values, exit. 35*de9707f9SLawrence Tang *location = bytes; 36*de9707f9SLawrence Tang return size; 37*de9707f9SLawrence Tang }