1 /** 2 * Describes functions for converting PCI/PCI-X bus CPER sections from binary and JSON format 3 * into an intermediate format. 4 * 5 * Author: Lawrence.Tang@arm.com 6 **/ 7 #include <stdio.h> 8 #include <string.h> 9 #include "json.h" 10 #include "../edk/Cper.h" 11 #include "../cper-utils.h" 12 #include "cper-section-pci-bus.h" 13 14 //Converts a single PCI/PCI-X bus CPER section into JSON IR. 15 json_object* cper_section_pci_bus_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor) 16 { 17 EFI_PCI_PCIX_BUS_ERROR_DATA* bus_error = (EFI_PCI_PCIX_BUS_ERROR_DATA*)section; 18 json_object* section_ir = json_object_new_object(); 19 20 //Validation bits. 21 json_object* validation = bitfield_to_ir(bus_error->ValidFields, 9, PCI_BUS_ERROR_VALID_BITFIELD_NAMES); 22 json_object_object_add(section_ir, "validationBits", validation); 23 24 //Error status. 25 json_object* error_status = cper_generic_error_status_to_ir(&bus_error->ErrorStatus); 26 json_object_object_add(section_ir, "errorStatus", error_status); 27 28 //PCI bus error type. 29 json_object* error_type = integer_to_readable_pair(bus_error->Type, 8, 30 PCI_BUS_ERROR_TYPES_KEYS, 31 PCI_BUS_ERROR_TYPES_VALUES, 32 "Unknown (Reserved)"); 33 json_object_object_add(section_ir, "errorType", error_type); 34 35 //Bus ID. 36 json_object* bus_id = json_object_new_object(); 37 json_object_object_add(bus_id, "busNumber", json_object_new_int(bus_error->BusId & 0xFF)); 38 json_object_object_add(bus_id, "segmentNumber", json_object_new_int(bus_error->BusId >> 8)); 39 json_object_object_add(section_ir, "busID", bus_id); 40 41 //Miscellaneous numeric fields. 42 UINT8 command_type = (bus_error->BusCommand >> 56) & 0b1; //Byte 7, bit 0. 43 json_object_object_add(section_ir, "busAddress", json_object_new_uint64(bus_error->BusAddress)); 44 json_object_object_add(section_ir, "busData", json_object_new_uint64(bus_error->BusData)); 45 json_object_object_add(section_ir, "busCommandType", json_object_new_string(command_type == 0 ? "PCI" : "PCI-X")); 46 json_object_object_add(section_ir, "busRequestorID", json_object_new_uint64(bus_error->RequestorId)); 47 json_object_object_add(section_ir, "busCompleterID", json_object_new_uint64(bus_error->ResponderId)); 48 json_object_object_add(section_ir, "targetID", json_object_new_uint64(bus_error->TargetId)); 49 50 return section_ir; 51 } 52 53 //Converts a single provided PCI/PCI-X bus CPER-JSON section into CPER binary, outputting to the 54 //provided stream. 55 void ir_section_pci_bus_to_cper(json_object* section, FILE* out) 56 { 57 EFI_PCI_PCIX_BUS_ERROR_DATA* section_cper = 58 (EFI_PCI_PCIX_BUS_ERROR_DATA*)calloc(1, sizeof(EFI_PCI_PCIX_BUS_ERROR_DATA)); 59 60 //Validation bits. 61 section_cper->ValidFields = ir_to_bitfield(json_object_object_get(section, "validationBits"), 62 9, PCI_BUS_ERROR_VALID_BITFIELD_NAMES); 63 64 //Error status. 65 ir_generic_error_status_to_cper(json_object_object_get(section, "errorStatus"), §ion_cper->ErrorStatus); 66 67 //Bus ID. 68 json_object* bus_id = json_object_object_get(section, "busID"); 69 UINT16 bus_number = (UINT8)json_object_get_int(json_object_object_get(bus_id, "busNumber")); 70 UINT16 segment_number = (UINT8)json_object_get_int(json_object_object_get(bus_id, "segmentNumber")); 71 section_cper->BusId = bus_number + (segment_number << 8); 72 73 //Remaining fields. 74 UINT64 pcix_command = (UINT64)0x1 << 56; 75 const char* bus_command = json_object_get_string(json_object_object_get(section, "busCommandType")); 76 section_cper->Type = (UINT16)readable_pair_to_integer(json_object_object_get(section, "errorType")); 77 section_cper->BusAddress = json_object_get_uint64(json_object_object_get(section, "busAddress")); 78 section_cper->BusData = json_object_get_uint64(json_object_object_get(section, "busData")); 79 section_cper->BusCommand = strcmp(bus_command, "PCI") == 0 ? 0 : pcix_command; 80 section_cper->RequestorId = json_object_get_uint64(json_object_object_get(section, "busRequestorID")); 81 section_cper->ResponderId = json_object_get_uint64(json_object_object_get(section, "busCompleterID")); 82 section_cper->TargetId = json_object_get_uint64(json_object_object_get(section, "targetID")); 83 84 //Write to stream, free resources. 85 fwrite(section_cper, sizeof(EFI_PCI_PCIX_BUS_ERROR_DATA), 1, out); 86 fflush(out); 87 free(section_cper); 88 }