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> 8205dd1d7SLawrence 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. 16*e407b4c8SLawrence Tang json_object * 17*e407b4c8SLawrence Tang cper_section_ccix_per_to_ir(void *section, 18*e407b4c8SLawrence Tang EFI_ERROR_SECTION_DESCRIPTOR *descriptor) 19864c0da9SLawrence Tang { 20864c0da9SLawrence Tang EFI_CCIX_PER_LOG_DATA *ccix_error = (EFI_CCIX_PER_LOG_DATA *)section; 21864c0da9SLawrence Tang json_object *section_ir = json_object_new_object(); 22864c0da9SLawrence Tang 23864c0da9SLawrence Tang //Length (bytes) for the entire structure. 24*e407b4c8SLawrence Tang json_object_object_add(section_ir, "length", 25*e407b4c8SLawrence Tang json_object_new_uint64(ccix_error->Length)); 26864c0da9SLawrence Tang 27864c0da9SLawrence Tang //Validation bits. 28*e407b4c8SLawrence Tang json_object *validation = bitfield_to_ir( 29*e407b4c8SLawrence Tang ccix_error->ValidBits, 3, CCIX_PER_ERROR_VALID_BITFIELD_NAMES); 30864c0da9SLawrence Tang json_object_object_add(section_ir, "validationBits", validation); 31864c0da9SLawrence Tang 32864c0da9SLawrence Tang //CCIX source/port IDs. 33*e407b4c8SLawrence Tang json_object_object_add(section_ir, "ccixSourceID", 34*e407b4c8SLawrence Tang json_object_new_int(ccix_error->CcixSourceId)); 35*e407b4c8SLawrence Tang json_object_object_add(section_ir, "ccixPortID", 36*e407b4c8SLawrence Tang json_object_new_int(ccix_error->CcixPortId)); 37864c0da9SLawrence Tang 38864c0da9SLawrence Tang //CCIX PER Log. 392721739aSLawrence Tang //This is formatted as described in Section 7.3.2 of CCIX Base Specification (Rev 1.0). 402721739aSLawrence Tang unsigned char *cur_pos = (unsigned char *)(ccix_error + 1); 41*e407b4c8SLawrence Tang int remaining_length = 42*e407b4c8SLawrence Tang ccix_error->Length - sizeof(EFI_CCIX_PER_LOG_DATA); 43*e407b4c8SLawrence Tang if (remaining_length > 0) { 442721739aSLawrence Tang char *encoded = b64_encode(cur_pos, remaining_length); 45*e407b4c8SLawrence Tang json_object_object_add(section_ir, "ccixPERLog", 46*e407b4c8SLawrence Tang json_object_new_string(encoded)); 472721739aSLawrence Tang free(encoded); 482721739aSLawrence Tang } 49864c0da9SLawrence Tang 50864c0da9SLawrence Tang return section_ir; 51864c0da9SLawrence Tang } 52205dd1d7SLawrence Tang 53205dd1d7SLawrence Tang //Converts a single CCIX PER CPER-JSON section into CPER binary, outputting to the given stream. 54205dd1d7SLawrence Tang void ir_section_ccix_per_to_cper(json_object *section, FILE *out) 55205dd1d7SLawrence Tang { 56*e407b4c8SLawrence Tang EFI_CCIX_PER_LOG_DATA *section_cper = (EFI_CCIX_PER_LOG_DATA *)calloc( 57*e407b4c8SLawrence Tang 1, sizeof(EFI_CCIX_PER_LOG_DATA)); 58205dd1d7SLawrence Tang 59205dd1d7SLawrence Tang //Length. 60*e407b4c8SLawrence Tang section_cper->Length = json_object_get_uint64( 61*e407b4c8SLawrence Tang json_object_object_get(section, "length")); 62205dd1d7SLawrence Tang 63205dd1d7SLawrence Tang //Validation bits. 64*e407b4c8SLawrence Tang section_cper->ValidBits = ir_to_bitfield( 65*e407b4c8SLawrence Tang json_object_object_get(section, "validationBits"), 3, 66*e407b4c8SLawrence Tang CCIX_PER_ERROR_VALID_BITFIELD_NAMES); 67205dd1d7SLawrence Tang 68205dd1d7SLawrence Tang //CCIX source/port IDs. 69*e407b4c8SLawrence Tang section_cper->CcixSourceId = (UINT8)json_object_get_int( 70*e407b4c8SLawrence Tang json_object_object_get(section, "ccixSourceID")); 71*e407b4c8SLawrence Tang section_cper->CcixPortId = (UINT8)json_object_get_int( 72*e407b4c8SLawrence Tang json_object_object_get(section, "ccixPortID")); 73205dd1d7SLawrence Tang 74205dd1d7SLawrence Tang //Write header out to stream. 753ab351feSLawrence Tang fwrite(section_cper, sizeof(EFI_CCIX_PER_LOG_DATA), 1, out); 76205dd1d7SLawrence Tang fflush(out); 77205dd1d7SLawrence Tang 78205dd1d7SLawrence Tang //Write CCIX PER log itself to stream. 79205dd1d7SLawrence Tang json_object *encoded = json_object_object_get(section, "ccixPERLog"); 80*e407b4c8SLawrence Tang UINT8 *decoded = b64_decode(json_object_get_string(encoded), 81*e407b4c8SLawrence Tang json_object_get_string_len(encoded)); 82*e407b4c8SLawrence Tang fwrite(decoded, section_cper->Length - sizeof(EFI_CCIX_PER_LOG_DATA), 1, 83*e407b4c8SLawrence Tang out); 84205dd1d7SLawrence Tang fflush(out); 85205dd1d7SLawrence Tang 86205dd1d7SLawrence Tang //Free resources. 87205dd1d7SLawrence Tang free(decoded); 88205dd1d7SLawrence Tang free(section_cper); 89205dd1d7SLawrence Tang }