1864c0da9SLawrence Tang /** 2864c0da9SLawrence Tang * Describes functions for converting CCIX PER log CPER sections from binary and JSON format 3864c0da9SLawrence Tang * into an intermediate format. 4864c0da9SLawrence Tang * 5864c0da9SLawrence Tang * Author: Lawrence.Tang@arm.com 6864c0da9SLawrence Tang **/ 7864c0da9SLawrence Tang #include <stdio.h> 8*205dd1d7SLawrence Tang #include <string.h> 9864c0da9SLawrence Tang #include "json.h" 102721739aSLawrence Tang #include "b64.h" 11864c0da9SLawrence Tang #include "../edk/Cper.h" 12864c0da9SLawrence Tang #include "../cper-utils.h" 13864c0da9SLawrence Tang #include "cper-section-ccix-per.h" 14864c0da9SLawrence Tang 15864c0da9SLawrence Tang //Converts a single CCIX PER log CPER section into JSON IR. 16864c0da9SLawrence Tang json_object* cper_section_ccix_per_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor) 17864c0da9SLawrence Tang { 18864c0da9SLawrence Tang EFI_CCIX_PER_LOG_DATA* ccix_error = (EFI_CCIX_PER_LOG_DATA*)section; 19864c0da9SLawrence Tang json_object* section_ir = json_object_new_object(); 20864c0da9SLawrence Tang 21864c0da9SLawrence Tang //Length (bytes) for the entire structure. 22864c0da9SLawrence Tang json_object_object_add(section_ir, "length", json_object_new_uint64(ccix_error->Length)); 23864c0da9SLawrence Tang 24864c0da9SLawrence Tang //Validation bits. 25864c0da9SLawrence Tang json_object* validation = bitfield_to_ir(ccix_error->ValidBits, 3, CCIX_PER_ERROR_VALID_BITFIELD_NAMES); 26864c0da9SLawrence Tang json_object_object_add(section_ir, "validationBits", validation); 27864c0da9SLawrence Tang 28864c0da9SLawrence Tang //CCIX source/port IDs. 29864c0da9SLawrence Tang json_object_object_add(section_ir, "ccixSourceID", json_object_new_int(ccix_error->CcixSourceId)); 30864c0da9SLawrence Tang json_object_object_add(section_ir, "ccixPortID", json_object_new_int(ccix_error->CcixPortId)); 31864c0da9SLawrence Tang 32864c0da9SLawrence Tang //CCIX PER Log. 332721739aSLawrence Tang //This is formatted as described in Section 7.3.2 of CCIX Base Specification (Rev 1.0). 342721739aSLawrence Tang unsigned char* cur_pos = (unsigned char*)(ccix_error + 1); 35*205dd1d7SLawrence Tang int remaining_length = ccix_error->Length - sizeof(ccix_error); 362721739aSLawrence Tang if (remaining_length > 0) 372721739aSLawrence Tang { 382721739aSLawrence Tang char* encoded = b64_encode(cur_pos, remaining_length); 392721739aSLawrence Tang json_object_object_add(section_ir, "ccixPERLog", json_object_new_string(encoded)); 402721739aSLawrence Tang free(encoded); 412721739aSLawrence Tang } 42864c0da9SLawrence Tang 43864c0da9SLawrence Tang return section_ir; 44864c0da9SLawrence Tang } 45*205dd1d7SLawrence Tang 46*205dd1d7SLawrence Tang //Converts a single CCIX PER CPER-JSON section into CPER binary, outputting to the given stream. 47*205dd1d7SLawrence Tang void ir_section_ccix_per_to_cper(json_object* section, FILE* out) 48*205dd1d7SLawrence Tang { 49*205dd1d7SLawrence Tang EFI_CCIX_PER_LOG_DATA* section_cper = 50*205dd1d7SLawrence Tang (EFI_CCIX_PER_LOG_DATA*)calloc(1, sizeof(EFI_CCIX_PER_LOG_DATA)); 51*205dd1d7SLawrence Tang 52*205dd1d7SLawrence Tang //Length. 53*205dd1d7SLawrence Tang section_cper->Length = json_object_get_uint64(json_object_object_get(section, "length")); 54*205dd1d7SLawrence Tang 55*205dd1d7SLawrence Tang //Validation bits. 56*205dd1d7SLawrence Tang section_cper->ValidBits = ir_to_bitfield(json_object_object_get(section, "validationBits"), 57*205dd1d7SLawrence Tang 3, CCIX_PER_ERROR_VALID_BITFIELD_NAMES); 58*205dd1d7SLawrence Tang 59*205dd1d7SLawrence Tang //CCIX source/port IDs. 60*205dd1d7SLawrence Tang section_cper->CcixSourceId = (UINT8)json_object_get_int(json_object_object_get(section, "ccixSourceID")); 61*205dd1d7SLawrence Tang section_cper->CcixPortId = (UINT8)json_object_get_int(json_object_object_get(section, "ccixPortID")); 62*205dd1d7SLawrence Tang 63*205dd1d7SLawrence Tang //Write header out to stream. 64*205dd1d7SLawrence Tang fwrite(§ion_cper, sizeof(section_cper), 1, out); 65*205dd1d7SLawrence Tang fflush(out); 66*205dd1d7SLawrence Tang 67*205dd1d7SLawrence Tang //Write CCIX PER log itself to stream. 68*205dd1d7SLawrence Tang json_object* encoded = json_object_object_get(section, "ccixPERLog"); 69*205dd1d7SLawrence Tang UINT8* decoded = b64_decode(json_object_get_string(encoded), json_object_get_string_len(encoded)); 70*205dd1d7SLawrence Tang fwrite(decoded, section_cper->Length - sizeof(section_cper), 1, out); 71*205dd1d7SLawrence Tang fflush(out); 72*205dd1d7SLawrence Tang 73*205dd1d7SLawrence Tang //Free resources. 74*205dd1d7SLawrence Tang free(decoded); 75*205dd1d7SLawrence Tang free(section_cper); 76*205dd1d7SLawrence Tang }