diff --git a/sections/cper-section-dmar-vtd.c b/sections/cper-section-dmar-vtd.c
new file mode 100644
index 0000000..a7e13a7
--- /dev/null
+++ b/sections/cper-section-dmar-vtd.c
@@ -0,0 +1,44 @@
+/**
+ * Describes functions for converting VT-d specific DMAr CPER sections from binary and JSON format
+ * into an intermediate format.
+ * 
+ * Author: Lawrence.Tang@arm.com
+ **/
+#include <stdio.h>
+#include "json.h"
+#include "../edk/Cper.h"
+#include "../cper-utils.h"
+#include "cper-section-dmar-vtd.h"
+
+//Converts a single VT-d specific DMAr CPER section into JSON IR.
+json_object* cper_section_dmar_vtd_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor)
+{
+    EFI_DIRECTED_IO_DMAR_ERROR_DATA* vtd_error = (EFI_DIRECTED_IO_DMAR_ERROR_DATA*)section;
+    json_object* section_ir = json_object_new_object();
+
+    //Version, revision and OEM ID, as defined in the VT-d architecture.
+    UINT64 oem_id = (vtd_error->OemId[0] << 16) + (vtd_error->OemId[1] << 8) + vtd_error->OemId[2];
+    json_object_object_add(section_ir, "version", json_object_new_int(vtd_error->Version));
+    json_object_object_add(section_ir, "revision", json_object_new_int(vtd_error->Revision));
+    json_object_object_add(section_ir, "oemID", json_object_new_uint64(oem_id));
+
+    //Registers.
+    json_object_object_add(section_ir, "capabilityRegister", json_object_new_uint64(vtd_error->Capability));
+    json_object_object_add(section_ir, "extendedCapabilityRegister", json_object_new_uint64(vtd_error->CapabilityEx));
+    json_object_object_add(section_ir, "globalCommandRegister", json_object_new_uint64(vtd_error->GlobalCommand));
+    json_object_object_add(section_ir, "globalStatusRegister", json_object_new_uint64(vtd_error->GlobalStatus));
+    json_object_object_add(section_ir, "faultStatusRegister", json_object_new_uint64(vtd_error->FaultStatus));
+
+    //Fault record, root and context entry.
+    //todo: Look at the VT-d specification and implement
+
+    //PTE entry for all page levels.
+    json_object_object_add(section_ir, "pageTableEntry_Level6", json_object_new_uint64(vtd_error->PteL6));
+    json_object_object_add(section_ir, "pageTableEntry_Level5", json_object_new_uint64(vtd_error->PteL5));
+    json_object_object_add(section_ir, "pageTableEntry_Level4", json_object_new_uint64(vtd_error->PteL4));
+    json_object_object_add(section_ir, "pageTableEntry_Level3", json_object_new_uint64(vtd_error->PteL3));
+    json_object_object_add(section_ir, "pageTableEntry_Level2", json_object_new_uint64(vtd_error->PteL2));
+    json_object_object_add(section_ir, "pageTableEntry_Level1", json_object_new_uint64(vtd_error->PteL1));
+
+    return section_ir;
+}
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