1*db1b7ce2SLawrence Tang /**
2*db1b7ce2SLawrence Tang  * Describes functions for converting VT-d specific DMAr CPER sections from binary and JSON format
3*db1b7ce2SLawrence Tang  * into an intermediate format.
4*db1b7ce2SLawrence Tang  *
5*db1b7ce2SLawrence Tang  * Author: Lawrence.Tang@arm.com
6*db1b7ce2SLawrence Tang  **/
7*db1b7ce2SLawrence Tang #include <stdio.h>
8*db1b7ce2SLawrence Tang #include "json.h"
9*db1b7ce2SLawrence Tang #include "../edk/Cper.h"
10*db1b7ce2SLawrence Tang #include "../cper-utils.h"
11*db1b7ce2SLawrence Tang #include "cper-section-dmar-vtd.h"
12*db1b7ce2SLawrence Tang 
13*db1b7ce2SLawrence Tang //Converts a single VT-d specific DMAr CPER section into JSON IR.
14*db1b7ce2SLawrence Tang json_object* cper_section_dmar_vtd_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor)
15*db1b7ce2SLawrence Tang {
16*db1b7ce2SLawrence Tang     EFI_DIRECTED_IO_DMAR_ERROR_DATA* vtd_error = (EFI_DIRECTED_IO_DMAR_ERROR_DATA*)section;
17*db1b7ce2SLawrence Tang     json_object* section_ir = json_object_new_object();
18*db1b7ce2SLawrence Tang 
19*db1b7ce2SLawrence Tang     //Version, revision and OEM ID, as defined in the VT-d architecture.
20*db1b7ce2SLawrence Tang     UINT64 oem_id = (vtd_error->OemId[0] << 16) + (vtd_error->OemId[1] << 8) + vtd_error->OemId[2];
21*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "version", json_object_new_int(vtd_error->Version));
22*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "revision", json_object_new_int(vtd_error->Revision));
23*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "oemID", json_object_new_uint64(oem_id));
24*db1b7ce2SLawrence Tang 
25*db1b7ce2SLawrence Tang     //Registers.
26*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "capabilityRegister", json_object_new_uint64(vtd_error->Capability));
27*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "extendedCapabilityRegister", json_object_new_uint64(vtd_error->CapabilityEx));
28*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "globalCommandRegister", json_object_new_uint64(vtd_error->GlobalCommand));
29*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "globalStatusRegister", json_object_new_uint64(vtd_error->GlobalStatus));
30*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "faultStatusRegister", json_object_new_uint64(vtd_error->FaultStatus));
31*db1b7ce2SLawrence Tang 
32*db1b7ce2SLawrence Tang     //Fault record, root and context entry.
33*db1b7ce2SLawrence Tang     //todo: Look at the VT-d specification and implement
34*db1b7ce2SLawrence Tang 
35*db1b7ce2SLawrence Tang     //PTE entry for all page levels.
36*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "pageTableEntry_Level6", json_object_new_uint64(vtd_error->PteL6));
37*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "pageTableEntry_Level5", json_object_new_uint64(vtd_error->PteL5));
38*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "pageTableEntry_Level4", json_object_new_uint64(vtd_error->PteL4));
39*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "pageTableEntry_Level3", json_object_new_uint64(vtd_error->PteL3));
40*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "pageTableEntry_Level2", json_object_new_uint64(vtd_error->PteL2));
41*db1b7ce2SLawrence Tang     json_object_object_add(section_ir, "pageTableEntry_Level1", json_object_new_uint64(vtd_error->PteL1));
42*db1b7ce2SLawrence Tang 
43*db1b7ce2SLawrence Tang     return section_ir;
44*db1b7ce2SLawrence Tang }