1*de9707f9SLawrence Tang /** 2*de9707f9SLawrence Tang * Functions for generating psuedo-random CPER PCI/PCI-X bus 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/PCI-X bus 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_bus(void** location) 15*de9707f9SLawrence Tang { 16*de9707f9SLawrence Tang //Create random bytes. 17*de9707f9SLawrence Tang int size = 208; 18*de9707f9SLawrence Tang UINT8* bytes = generate_random_bytes(size); 19*de9707f9SLawrence Tang 20*de9707f9SLawrence Tang //Set reserved areas to zero. 21*de9707f9SLawrence Tang UINT64* validation = (UINT64*)bytes; 22*de9707f9SLawrence Tang *validation &= 0x1FF; //Validation 9-63 23*de9707f9SLawrence Tang UINT32* reserved = (UINT32*)(bytes + 20); 24*de9707f9SLawrence Tang *reserved = 0; 25*de9707f9SLawrence Tang UINT64* bus_command = (UINT64*)(bytes + 40); 26*de9707f9SLawrence Tang *bus_command &= 0x100000000000000; //Bus command bytes bar bit 56. 27*de9707f9SLawrence Tang 28*de9707f9SLawrence Tang //Fix values that could be above range. 29*de9707f9SLawrence Tang UINT16* error_type = (UINT16*)(bytes + 16); 30*de9707f9SLawrence Tang *error_type = rand() % 8; 31*de9707f9SLawrence Tang 32*de9707f9SLawrence Tang //Fix error status. 33*de9707f9SLawrence Tang create_valid_error_section(bytes + 8); 34*de9707f9SLawrence Tang 35*de9707f9SLawrence Tang //Set return values, exit. 36*de9707f9SLawrence Tang *location = bytes; 37*de9707f9SLawrence Tang return size; 38*de9707f9SLawrence Tang }