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 }