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 * 16 cper_section_pci_bus_to_ir(void *section, 17 EFI_ERROR_SECTION_DESCRIPTOR *descriptor) 18 { 19 EFI_PCI_PCIX_BUS_ERROR_DATA *bus_error = 20 (EFI_PCI_PCIX_BUS_ERROR_DATA *)section; 21 json_object *section_ir = json_object_new_object(); 22 23 //Validation bits. 24 json_object *validation = bitfield_to_ir( 25 bus_error->ValidFields, 9, PCI_BUS_ERROR_VALID_BITFIELD_NAMES); 26 json_object_object_add(section_ir, "validationBits", validation); 27 28 //Error status. 29 json_object *error_status = 30 cper_generic_error_status_to_ir(&bus_error->ErrorStatus); 31 json_object_object_add(section_ir, "errorStatus", error_status); 32 33 //PCI bus error type. 34 json_object *error_type = integer_to_readable_pair( 35 bus_error->Type, 8, PCI_BUS_ERROR_TYPES_KEYS, 36 PCI_BUS_ERROR_TYPES_VALUES, "Unknown (Reserved)"); 37 json_object_object_add(section_ir, "errorType", error_type); 38 39 //Bus ID. 40 json_object *bus_id = json_object_new_object(); 41 json_object_object_add(bus_id, "busNumber", 42 json_object_new_int(bus_error->BusId & 0xFF)); 43 json_object_object_add(bus_id, "segmentNumber", 44 json_object_new_int(bus_error->BusId >> 8)); 45 json_object_object_add(section_ir, "busID", bus_id); 46 47 //Miscellaneous numeric fields. 48 UINT8 command_type = (bus_error->BusCommand >> 56) & 49 0b1; //Byte 7, bit 0. 50 json_object_object_add(section_ir, "busAddress", 51 json_object_new_uint64(bus_error->BusAddress)); 52 json_object_object_add(section_ir, "busData", 53 json_object_new_uint64(bus_error->BusData)); 54 json_object_object_add( 55 section_ir, "busCommandType", 56 json_object_new_string(command_type == 0 ? "PCI" : "PCI-X")); 57 json_object_object_add(section_ir, "busRequestorID", 58 json_object_new_uint64(bus_error->RequestorId)); 59 json_object_object_add(section_ir, "busCompleterID", 60 json_object_new_uint64(bus_error->ResponderId)); 61 json_object_object_add(section_ir, "targetID", 62 json_object_new_uint64(bus_error->TargetId)); 63 64 return section_ir; 65 } 66 67 //Converts a single provided PCI/PCI-X bus CPER-JSON section into CPER binary, outputting to the 68 //provided stream. 69 void ir_section_pci_bus_to_cper(json_object *section, FILE *out) 70 { 71 EFI_PCI_PCIX_BUS_ERROR_DATA *section_cper = 72 (EFI_PCI_PCIX_BUS_ERROR_DATA *)calloc( 73 1, sizeof(EFI_PCI_PCIX_BUS_ERROR_DATA)); 74 75 //Validation bits. 76 section_cper->ValidFields = ir_to_bitfield( 77 json_object_object_get(section, "validationBits"), 9, 78 PCI_BUS_ERROR_VALID_BITFIELD_NAMES); 79 80 //Error status. 81 ir_generic_error_status_to_cper(json_object_object_get(section, 82 "errorStatus"), 83 §ion_cper->ErrorStatus); 84 85 //Bus ID. 86 json_object *bus_id = json_object_object_get(section, "busID"); 87 UINT16 bus_number = (UINT8)json_object_get_int( 88 json_object_object_get(bus_id, "busNumber")); 89 UINT16 segment_number = (UINT8)json_object_get_int( 90 json_object_object_get(bus_id, "segmentNumber")); 91 section_cper->BusId = bus_number + (segment_number << 8); 92 93 //Remaining fields. 94 UINT64 pcix_command = (UINT64)0x1 << 56; 95 const char *bus_command = json_object_get_string( 96 json_object_object_get(section, "busCommandType")); 97 section_cper->Type = (UINT16)readable_pair_to_integer( 98 json_object_object_get(section, "errorType")); 99 section_cper->BusAddress = json_object_get_uint64( 100 json_object_object_get(section, "busAddress")); 101 section_cper->BusData = json_object_get_uint64( 102 json_object_object_get(section, "busData")); 103 section_cper->BusCommand = 104 strcmp(bus_command, "PCI") == 0 ? 0 : pcix_command; 105 section_cper->RequestorId = json_object_get_uint64( 106 json_object_object_get(section, "busRequestorID")); 107 section_cper->ResponderId = json_object_get_uint64( 108 json_object_object_get(section, "busCompleterID")); 109 section_cper->TargetId = json_object_get_uint64( 110 json_object_object_get(section, "targetID")); 111 112 //Write to stream, free resources. 113 fwrite(section_cper, sizeof(EFI_PCI_PCIX_BUS_ERROR_DATA), 1, out); 114 fflush(out); 115 free(section_cper); 116 }