1d7e8ca34SLawrence Tang /**
2d7e8ca34SLawrence Tang * Describes functions for converting CXL component error CPER sections from binary and JSON format
3d7e8ca34SLawrence Tang * into an intermediate format.
4d7e8ca34SLawrence Tang *
5d7e8ca34SLawrence Tang * Author: Lawrence.Tang@arm.com
6d7e8ca34SLawrence Tang **/
7d7e8ca34SLawrence Tang #include <stdio.h>
85202bbb4SLawrence Tang #include <json.h>
9*a7d2cdddSEd Tanous #include "base64.h"
10d7e8ca34SLawrence Tang #include "../edk/Cper.h"
11d7e8ca34SLawrence Tang #include "../cper-utils.h"
12d7e8ca34SLawrence Tang #include "cper-section-cxl-component.h"
13d7e8ca34SLawrence Tang
14d7e8ca34SLawrence Tang //Converts a single CXL component error CPER section into JSON IR.
cper_section_cxl_component_to_ir(void * section)15f8fc7052SJohn Chung json_object *cper_section_cxl_component_to_ir(void *section)
16d7e8ca34SLawrence Tang {
17e407b4c8SLawrence Tang EFI_CXL_COMPONENT_EVENT_HEADER *cxl_error =
18e407b4c8SLawrence Tang (EFI_CXL_COMPONENT_EVENT_HEADER *)section;
19d7e8ca34SLawrence Tang json_object *section_ir = json_object_new_object();
20d7e8ca34SLawrence Tang
212721739aSLawrence Tang //Length (bytes) for the entire structure.
22e407b4c8SLawrence Tang json_object_object_add(section_ir, "length",
23e407b4c8SLawrence Tang json_object_new_uint64(cxl_error->Length));
242721739aSLawrence Tang
252721739aSLawrence Tang //Validation bits.
26e407b4c8SLawrence Tang json_object *validation =
27e407b4c8SLawrence Tang bitfield_to_ir(cxl_error->ValidBits, 3,
28e407b4c8SLawrence Tang CXL_COMPONENT_ERROR_VALID_BITFIELD_NAMES);
292721739aSLawrence Tang json_object_object_add(section_ir, "validationBits", validation);
302721739aSLawrence Tang
312721739aSLawrence Tang //Device ID.
322721739aSLawrence Tang json_object *device_id = json_object_new_object();
33e407b4c8SLawrence Tang json_object_object_add(
34e407b4c8SLawrence Tang device_id, "vendorID",
35e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.VendorId));
36e407b4c8SLawrence Tang json_object_object_add(
37e407b4c8SLawrence Tang device_id, "deviceID",
38e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.DeviceId));
39e407b4c8SLawrence Tang json_object_object_add(
40e407b4c8SLawrence Tang device_id, "functionNumber",
41e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.FunctionNumber));
42e407b4c8SLawrence Tang json_object_object_add(
43e407b4c8SLawrence Tang device_id, "deviceNumber",
44e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.DeviceNumber));
45e407b4c8SLawrence Tang json_object_object_add(
46e407b4c8SLawrence Tang device_id, "busNumber",
47e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.BusNumber));
48e407b4c8SLawrence Tang json_object_object_add(
49e407b4c8SLawrence Tang device_id, "segmentNumber",
50e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.SegmentNumber));
51e407b4c8SLawrence Tang json_object_object_add(
52e407b4c8SLawrence Tang device_id, "slotNumber",
53e407b4c8SLawrence Tang json_object_new_int(cxl_error->DeviceId.SlotNumber));
542721739aSLawrence Tang json_object_object_add(section_ir, "deviceID", device_id);
552721739aSLawrence Tang
562721739aSLawrence Tang //Device serial.
57e407b4c8SLawrence Tang json_object_object_add(section_ir, "deviceSerial",
58e407b4c8SLawrence Tang json_object_new_uint64(cxl_error->DeviceSerial));
592721739aSLawrence Tang
602721739aSLawrence Tang //The specification for this is defined within the CXL Specification Section 8.2.9.1.
61f8fc7052SJohn Chung const char *cur_pos = (const char *)(cxl_error + 1);
62f8fc7052SJohn Chung int remaining_len =
63f8fc7052SJohn Chung cxl_error->Length - sizeof(EFI_CXL_COMPONENT_EVENT_HEADER);
64e407b4c8SLawrence Tang if (remaining_len > 0) {
652721739aSLawrence Tang json_object *event_log = json_object_new_object();
66*a7d2cdddSEd Tanous
67*a7d2cdddSEd Tanous int32_t encoded_len = 0;
68*a7d2cdddSEd Tanous
69*a7d2cdddSEd Tanous char *encoded = base64_encode((UINT8 *)cur_pos, remaining_len,
70*a7d2cdddSEd Tanous &encoded_len);
71*a7d2cdddSEd Tanous if (encoded == NULL) {
72f8fc7052SJohn Chung printf("Failed to allocate encode output buffer. \n");
73*a7d2cdddSEd Tanous return NULL;
74*a7d2cdddSEd Tanous }
75e407b4c8SLawrence Tang json_object_object_add(event_log, "data",
76*a7d2cdddSEd Tanous json_object_new_string_len(encoded,
77*a7d2cdddSEd Tanous encoded_len));
78f8fc7052SJohn Chung
792721739aSLawrence Tang free(encoded);
80*a7d2cdddSEd Tanous json_object_object_add(section_ir, "cxlComponentEventLog",
81*a7d2cdddSEd Tanous event_log);
822721739aSLawrence Tang }
83d7e8ca34SLawrence Tang
84d7e8ca34SLawrence Tang return section_ir;
85d7e8ca34SLawrence Tang }
86aec83900SLawrence Tang
87aec83900SLawrence Tang //Converts a single given CXL Component CPER-JSON section into CPER binary, outputting to the
88aec83900SLawrence Tang //given stream.
ir_section_cxl_component_to_cper(json_object * section,FILE * out)89aec83900SLawrence Tang void ir_section_cxl_component_to_cper(json_object *section, FILE *out)
90aec83900SLawrence Tang {
91aec83900SLawrence Tang EFI_CXL_COMPONENT_EVENT_HEADER *section_cper =
92e407b4c8SLawrence Tang (EFI_CXL_COMPONENT_EVENT_HEADER *)calloc(
93e407b4c8SLawrence Tang 1, sizeof(EFI_CXL_COMPONENT_EVENT_HEADER));
94aec83900SLawrence Tang
95aec83900SLawrence Tang //Length of the structure.
96e407b4c8SLawrence Tang section_cper->Length = json_object_get_uint64(
97e407b4c8SLawrence Tang json_object_object_get(section, "length"));
98aec83900SLawrence Tang
99aec83900SLawrence Tang //Validation bits.
100e407b4c8SLawrence Tang section_cper->ValidBits = ir_to_bitfield(
101e407b4c8SLawrence Tang json_object_object_get(section, "validationBits"), 3,
102e407b4c8SLawrence Tang CXL_COMPONENT_ERROR_VALID_BITFIELD_NAMES);
103aec83900SLawrence Tang
104aec83900SLawrence Tang //Device ID information.
105aec83900SLawrence Tang json_object *device_id = json_object_object_get(section, "deviceID");
106e407b4c8SLawrence Tang section_cper->DeviceId.VendorId = json_object_get_uint64(
107e407b4c8SLawrence Tang json_object_object_get(device_id, "vendorID"));
108e407b4c8SLawrence Tang section_cper->DeviceId.DeviceId = json_object_get_uint64(
109e407b4c8SLawrence Tang json_object_object_get(device_id, "deviceID"));
110e407b4c8SLawrence Tang section_cper->DeviceId.FunctionNumber = json_object_get_uint64(
111e407b4c8SLawrence Tang json_object_object_get(device_id, "functionNumber"));
112e407b4c8SLawrence Tang section_cper->DeviceId.DeviceNumber = json_object_get_uint64(
113e407b4c8SLawrence Tang json_object_object_get(device_id, "deviceNumber"));
114e407b4c8SLawrence Tang section_cper->DeviceId.BusNumber = json_object_get_uint64(
115e407b4c8SLawrence Tang json_object_object_get(device_id, "busNumber"));
116e407b4c8SLawrence Tang section_cper->DeviceId.SegmentNumber = json_object_get_uint64(
117e407b4c8SLawrence Tang json_object_object_get(device_id, "segmentNumber"));
118e407b4c8SLawrence Tang section_cper->DeviceId.SlotNumber = json_object_get_uint64(
119e407b4c8SLawrence Tang json_object_object_get(device_id, "slotNumber"));
120aec83900SLawrence Tang
121aec83900SLawrence Tang //Device serial number.
122e407b4c8SLawrence Tang section_cper->DeviceSerial = json_object_get_uint64(
123e407b4c8SLawrence Tang json_object_object_get(section, "deviceSerial"));
124aec83900SLawrence Tang
125aec83900SLawrence Tang //Write header out to stream.
1263ab351feSLawrence Tang fwrite(section_cper, sizeof(EFI_CXL_COMPONENT_EVENT_HEADER), 1, out);
127aec83900SLawrence Tang fflush(out);
128aec83900SLawrence Tang
129aec83900SLawrence Tang //CXL component event log, decoded from base64.
130e407b4c8SLawrence Tang json_object *event_log =
131e407b4c8SLawrence Tang json_object_object_get(section, "cxlComponentEventLog");
1320a4b3f2dSLawrence Tang json_object *encoded = json_object_object_get(event_log, "data");
133*a7d2cdddSEd Tanous
134*a7d2cdddSEd Tanous int32_t decoded_len = 0;
135*a7d2cdddSEd Tanous
136*a7d2cdddSEd Tanous UINT8 *decoded = base64_decode(json_object_get_string(encoded),
137*a7d2cdddSEd Tanous json_object_get_string_len(encoded),
138*a7d2cdddSEd Tanous &decoded_len);
139*a7d2cdddSEd Tanous
140*a7d2cdddSEd Tanous if (decoded == NULL) {
141f8fc7052SJohn Chung printf("Failed to allocate decode output buffer. \n");
142f8fc7052SJohn Chung } else {
143f8fc7052SJohn Chung fwrite(decoded, decoded_len, 1, out);
144aec83900SLawrence Tang fflush(out);
145aec83900SLawrence Tang free(decoded);
146f8fc7052SJohn Chung }
147aec83900SLawrence Tang
148aec83900SLawrence Tang free(section_cper);
149aec83900SLawrence Tang }
150