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>
95202bbb4SLawrence Tang #include <json.h>
10*a7d2cdddSEd Tanous #include "base64.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.
cper_section_ccix_per_to_ir(void * section)16f8fc7052SJohn Chung json_object *cper_section_ccix_per_to_ir(void *section)
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.
22e407b4c8SLawrence Tang json_object_object_add(section_ir, "length",
23e407b4c8SLawrence Tang json_object_new_uint64(ccix_error->Length));
24864c0da9SLawrence Tang
25864c0da9SLawrence Tang //Validation bits.
26e407b4c8SLawrence Tang json_object *validation = bitfield_to_ir(
27e407b4c8SLawrence Tang ccix_error->ValidBits, 3, CCIX_PER_ERROR_VALID_BITFIELD_NAMES);
28864c0da9SLawrence Tang json_object_object_add(section_ir, "validationBits", validation);
29864c0da9SLawrence Tang
30864c0da9SLawrence Tang //CCIX source/port IDs.
31e407b4c8SLawrence Tang json_object_object_add(section_ir, "ccixSourceID",
32e407b4c8SLawrence Tang json_object_new_int(ccix_error->CcixSourceId));
33e407b4c8SLawrence Tang json_object_object_add(section_ir, "ccixPortID",
34e407b4c8SLawrence Tang json_object_new_int(ccix_error->CcixPortId));
35864c0da9SLawrence Tang
36864c0da9SLawrence Tang //CCIX PER Log.
372721739aSLawrence Tang //This is formatted as described in Section 7.3.2 of CCIX Base Specification (Rev 1.0).
38f8fc7052SJohn Chung const char *cur_pos = (const char *)(ccix_error + 1);
39e407b4c8SLawrence Tang int remaining_length =
40e407b4c8SLawrence Tang ccix_error->Length - sizeof(EFI_CCIX_PER_LOG_DATA);
41e407b4c8SLawrence Tang if (remaining_length > 0) {
42*a7d2cdddSEd Tanous int32_t encoded_len = 0;
43*a7d2cdddSEd Tanous
44*a7d2cdddSEd Tanous char *encoded = base64_encode((UINT8 *)cur_pos,
45*a7d2cdddSEd Tanous remaining_length, &encoded_len);
46*a7d2cdddSEd Tanous if (encoded == NULL) {
47f8fc7052SJohn Chung printf("Failed to allocate encode output buffer. \n");
48f8fc7052SJohn Chung } else {
49e407b4c8SLawrence Tang json_object_object_add(section_ir, "ccixPERLog",
50f8fc7052SJohn Chung json_object_new_string_len(
51f8fc7052SJohn Chung encoded, encoded_len));
522721739aSLawrence Tang free(encoded);
532721739aSLawrence Tang }
54f8fc7052SJohn Chung }
55864c0da9SLawrence Tang
56864c0da9SLawrence Tang return section_ir;
57864c0da9SLawrence Tang }
58205dd1d7SLawrence Tang
59205dd1d7SLawrence Tang //Converts a single CCIX PER CPER-JSON section into CPER binary, outputting to the given stream.
ir_section_ccix_per_to_cper(json_object * section,FILE * out)60205dd1d7SLawrence Tang void ir_section_ccix_per_to_cper(json_object *section, FILE *out)
61205dd1d7SLawrence Tang {
62e407b4c8SLawrence Tang EFI_CCIX_PER_LOG_DATA *section_cper = (EFI_CCIX_PER_LOG_DATA *)calloc(
63e407b4c8SLawrence Tang 1, sizeof(EFI_CCIX_PER_LOG_DATA));
64205dd1d7SLawrence Tang
65205dd1d7SLawrence Tang //Length.
66e407b4c8SLawrence Tang section_cper->Length = json_object_get_uint64(
67e407b4c8SLawrence Tang json_object_object_get(section, "length"));
68205dd1d7SLawrence Tang
69205dd1d7SLawrence Tang //Validation bits.
70e407b4c8SLawrence Tang section_cper->ValidBits = ir_to_bitfield(
71e407b4c8SLawrence Tang json_object_object_get(section, "validationBits"), 3,
72e407b4c8SLawrence Tang CCIX_PER_ERROR_VALID_BITFIELD_NAMES);
73205dd1d7SLawrence Tang
74205dd1d7SLawrence Tang //CCIX source/port IDs.
75e407b4c8SLawrence Tang section_cper->CcixSourceId = (UINT8)json_object_get_int(
76e407b4c8SLawrence Tang json_object_object_get(section, "ccixSourceID"));
77e407b4c8SLawrence Tang section_cper->CcixPortId = (UINT8)json_object_get_int(
78e407b4c8SLawrence Tang json_object_object_get(section, "ccixPortID"));
79205dd1d7SLawrence Tang
80205dd1d7SLawrence Tang //Write header out to stream.
813ab351feSLawrence Tang fwrite(section_cper, sizeof(EFI_CCIX_PER_LOG_DATA), 1, out);
82205dd1d7SLawrence Tang fflush(out);
83205dd1d7SLawrence Tang
84205dd1d7SLawrence Tang //Write CCIX PER log itself to stream.
85205dd1d7SLawrence Tang json_object *encoded = json_object_object_get(section, "ccixPERLog");
86*a7d2cdddSEd Tanous int32_t decoded_len = 0;
87*a7d2cdddSEd Tanous
88*a7d2cdddSEd Tanous UINT8 *decoded = base64_decode(json_object_get_string(encoded),
89*a7d2cdddSEd Tanous json_object_get_string_len(encoded),
90*a7d2cdddSEd Tanous &decoded_len);
91*a7d2cdddSEd Tanous if (decoded == NULL) {
92f8fc7052SJohn Chung printf("Failed to allocate decode output buffer. \n");
93f8fc7052SJohn Chung } else {
94f8fc7052SJohn Chung fwrite(decoded, decoded_len, 1, out);
95205dd1d7SLawrence Tang fflush(out);
96205dd1d7SLawrence Tang free(decoded);
97*a7d2cdddSEd Tanous }
98*a7d2cdddSEd Tanous //Free resources.
99205dd1d7SLawrence Tang free(section_cper);
100205dd1d7SLawrence Tang }
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