1 /**
2  * Describes functions for converting VT-d specific DMAr 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 "json.h"
9 #include "../edk/Cper.h"
10 #include "../cper-utils.h"
11 #include "cper-section-dmar-vtd.h"
12 
13 //Converts a single VT-d specific DMAr CPER section into JSON IR.
14 json_object* cper_section_dmar_vtd_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor)
15 {
16     EFI_DIRECTED_IO_DMAR_ERROR_DATA* vtd_error = (EFI_DIRECTED_IO_DMAR_ERROR_DATA*)section;
17     json_object* section_ir = json_object_new_object();
18 
19     //Version, revision and OEM ID, as defined in the VT-d architecture.
20     UINT64 oem_id = (vtd_error->OemId[0] << 16) + (vtd_error->OemId[1] << 8) + vtd_error->OemId[2];
21     json_object_object_add(section_ir, "version", json_object_new_int(vtd_error->Version));
22     json_object_object_add(section_ir, "revision", json_object_new_int(vtd_error->Revision));
23     json_object_object_add(section_ir, "oemID", json_object_new_uint64(oem_id));
24 
25     //Registers.
26     json_object_object_add(section_ir, "capabilityRegister", json_object_new_uint64(vtd_error->Capability));
27     json_object_object_add(section_ir, "extendedCapabilityRegister", json_object_new_uint64(vtd_error->CapabilityEx));
28     json_object_object_add(section_ir, "globalCommandRegister", json_object_new_uint64(vtd_error->GlobalCommand));
29     json_object_object_add(section_ir, "globalStatusRegister", json_object_new_uint64(vtd_error->GlobalStatus));
30     json_object_object_add(section_ir, "faultStatusRegister", json_object_new_uint64(vtd_error->FaultStatus));
31 
32     //Fault record, root and context entry.
33     //todo: Look at the VT-d specification and implement
34 
35     //PTE entry for all page levels.
36     json_object_object_add(section_ir, "pageTableEntry_Level6", json_object_new_uint64(vtd_error->PteL6));
37     json_object_object_add(section_ir, "pageTableEntry_Level5", json_object_new_uint64(vtd_error->PteL5));
38     json_object_object_add(section_ir, "pageTableEntry_Level4", json_object_new_uint64(vtd_error->PteL4));
39     json_object_object_add(section_ir, "pageTableEntry_Level3", json_object_new_uint64(vtd_error->PteL3));
40     json_object_object_add(section_ir, "pageTableEntry_Level2", json_object_new_uint64(vtd_error->PteL2));
41     json_object_object_add(section_ir, "pageTableEntry_Level1", json_object_new_uint64(vtd_error->PteL1));
42 
43     return section_ir;
44 }