diff options
Diffstat (limited to 'IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c')
| -rw-r--r-- | IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c | 1016 |
1 files changed, 1016 insertions, 0 deletions
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c new file mode 100644 index 0000000000..2456b0c48f --- /dev/null +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c @@ -0,0 +1,1016 @@ +/** @file
+
+ Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "DmaProtection.h"
+
+#pragma pack(1)
+
+typedef struct {
+ EFI_ACPI_DESCRIPTION_HEADER Header;
+ UINT32 Entry;
+} RSDT_TABLE;
+
+typedef struct {
+ EFI_ACPI_DESCRIPTION_HEADER Header;
+ UINT64 Entry;
+} XSDT_TABLE;
+
+#pragma pack()
+
+EFI_ACPI_DMAR_HEADER *mAcpiDmarTable;
+
+/**
+ Dump DMAR DeviceScopeEntry.
+
+ @param[in] DmarDeviceScopeEntry DMAR DeviceScopeEntry
+**/
+VOID
+DumpDmarDeviceScopeEntry (
+ IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry
+ )
+{
+ UINTN PciPathNumber;
+ UINTN PciPathIndex;
+ EFI_ACPI_DMAR_PCI_PATH *PciPath;
+
+ if (DmarDeviceScopeEntry == NULL) {
+ return;
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " *************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " * DMA-Remapping Device Scope Entry Structure *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " *************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ " DMAR Device Scope Entry address ...................... 0x%016lx\n" :
+ " DMAR Device Scope Entry address ...................... 0x%08x\n",
+ DmarDeviceScopeEntry
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Device Scope Entry Type ............................ 0x%02x\n",
+ DmarDeviceScopeEntry->Type
+ ));
+ switch (DmarDeviceScopeEntry->Type) {
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT:
+ DEBUG ((DEBUG_INFO,
+ " PCI Endpoint Device\n"
+ ));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:
+ DEBUG ((DEBUG_INFO,
+ " PCI Sub-hierachy\n"
+ ));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_IOAPIC:
+ DEBUG ((DEBUG_INFO,
+ " IOAPIC\n"
+ ));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_MSI_CAPABLE_HPET:
+ DEBUG ((DEBUG_INFO,
+ " MSI Capable HPET\n"
+ ));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_ACPI_NAMESPACE_DEVICE:
+ DEBUG ((DEBUG_INFO,
+ " ACPI Namespace Device\n"
+ ));
+ break;
+ default:
+ break;
+ }
+ DEBUG ((DEBUG_INFO,
+ " Length ............................................. 0x%02x\n",
+ DmarDeviceScopeEntry->Length
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Enumeration ID ..................................... 0x%02x\n",
+ DmarDeviceScopeEntry->EnumerationId
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Starting Bus Number ................................ 0x%02x\n",
+ DmarDeviceScopeEntry->StartBusNumber
+ ));
+
+ PciPathNumber = (DmarDeviceScopeEntry->Length - sizeof(EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER)) / sizeof(EFI_ACPI_DMAR_PCI_PATH);
+ PciPath = (EFI_ACPI_DMAR_PCI_PATH *)(DmarDeviceScopeEntry + 1);
+ for (PciPathIndex = 0; PciPathIndex < PciPathNumber; PciPathIndex++) {
+ DEBUG ((DEBUG_INFO,
+ " Device ............................................. 0x%02x\n",
+ PciPath[PciPathIndex].Device
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Function ........................................... 0x%02x\n",
+ PciPath[PciPathIndex].Function
+ ));
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " *************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR ANDD table.
+
+ @param[in] Andd DMAR ANDD table
+**/
+VOID
+DumpDmarAndd (
+ IN EFI_ACPI_DMAR_ANDD_HEADER *Andd
+ )
+{
+ if (Andd == NULL) {
+ return;
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " * ACPI Name-space Device Declaration Structure *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ " ANDD address ........................................... 0x%016lx\n" :
+ " ANDD address ........................................... 0x%08x\n",
+ Andd
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Type ................................................. 0x%04x\n",
+ Andd->Header.Type
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Length ............................................... 0x%04x\n",
+ Andd->Header.Length
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ACPI Device Number ................................... 0x%02x\n",
+ Andd->AcpiDeviceNumber
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ACPI Object Name ..................................... '%a'\n",
+ (Andd + 1)
+ ));
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR RHSA table.
+
+ @param[in] Rhsa DMAR RHSA table
+**/
+VOID
+DumpDmarRhsa (
+ IN EFI_ACPI_DMAR_RHSA_HEADER *Rhsa
+ )
+{
+ if (Rhsa == NULL) {
+ return;
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " * Remapping Hardware Status Affinity Structure *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ " RHSA address ........................................... 0x%016lx\n" :
+ " RHSA address ........................................... 0x%08x\n",
+ Rhsa
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Type ................................................. 0x%04x\n",
+ Rhsa->Header.Type
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Length ............................................... 0x%04x\n",
+ Rhsa->Header.Length
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Register Base Address ................................ 0x%016lx\n",
+ Rhsa->RegisterBaseAddress
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Proximity Domain ..................................... 0x%08x\n",
+ Rhsa->ProximityDomain
+ ));
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR ATSR table.
+
+ @param[in] Atsr DMAR ATSR table
+**/
+VOID
+DumpDmarAtsr (
+ IN EFI_ACPI_DMAR_ATSR_HEADER *Atsr
+ )
+{
+ EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;
+ INTN AtsrLen;
+
+ if (Atsr == NULL) {
+ return;
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " * Root Port ATS Capability Reporting Structure *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ " ATSR address ........................................... 0x%016lx\n" :
+ " ATSR address ........................................... 0x%08x\n",
+ Atsr
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Type ................................................. 0x%04x\n",
+ Atsr->Header.Type
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Length ............................................... 0x%04x\n",
+ Atsr->Header.Length
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Flags ................................................ 0x%02x\n",
+ Atsr->Flags
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ALL_PORTS .......................................... 0x%02x\n",
+ Atsr->Flags & EFI_ACPI_DMAR_ATSR_FLAGS_ALL_PORTS
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Segment Number ....................................... 0x%04x\n",
+ Atsr->SegmentNumber
+ ));
+
+ AtsrLen = Atsr->Header.Length - sizeof(EFI_ACPI_DMAR_ATSR_HEADER);
+ DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Atsr + 1);
+ while (AtsrLen > 0) {
+ DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);
+ AtsrLen -= DmarDeviceScopeEntry->Length;
+ DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR RMRR table.
+
+ @param[in] Rmrr DMAR RMRR table
+**/
+VOID
+DumpDmarRmrr (
+ IN EFI_ACPI_DMAR_RMRR_HEADER *Rmrr
+ )
+{
+ EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;
+ INTN RmrrLen;
+
+ if (Rmrr == NULL) {
+ return;
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " * Reserved Memory Region Reporting Structure *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ " RMRR address ........................................... 0x%016lx\n" :
+ " RMRR address ........................................... 0x%08x\n",
+ Rmrr
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Type ................................................. 0x%04x\n",
+ Rmrr->Header.Type
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Length ............................................... 0x%04x\n",
+ Rmrr->Header.Length
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Segment Number ....................................... 0x%04x\n",
+ Rmrr->SegmentNumber
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Reserved Memory Region Base Address .................. 0x%016lx\n",
+ Rmrr->ReservedMemoryRegionBaseAddress
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Reserved Memory Region Limit Address ................. 0x%016lx\n",
+ Rmrr->ReservedMemoryRegionLimitAddress
+ ));
+
+ RmrrLen = Rmrr->Header.Length - sizeof(EFI_ACPI_DMAR_RMRR_HEADER);
+ DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Rmrr + 1);
+ while (RmrrLen > 0) {
+ DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);
+ RmrrLen -= DmarDeviceScopeEntry->Length;
+ DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR DRHD table.
+
+ @param[in] Drhd DMAR DRHD table
+**/
+VOID
+DumpDmarDrhd (
+ IN EFI_ACPI_DMAR_DRHD_HEADER *Drhd
+ )
+{
+ EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;
+ INTN DrhdLen;
+
+ if (Drhd == NULL) {
+ return;
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " * DMA-Remapping Hardware Definition Structure *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ " DRHD address ........................................... 0x%016lx\n" :
+ " DRHD address ........................................... 0x%08x\n",
+ Drhd
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Type ................................................. 0x%04x\n",
+ Drhd->Header.Type
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Length ............................................... 0x%04x\n",
+ Drhd->Header.Length
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Flags ................................................ 0x%02x\n",
+ Drhd->Flags
+ ));
+ DEBUG ((DEBUG_INFO,
+ " INCLUDE_PCI_ALL .................................... 0x%02x\n",
+ Drhd->Flags & EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Segment Number ....................................... 0x%04x\n",
+ Drhd->SegmentNumber
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Register Base Address ................................ 0x%016lx\n",
+ Drhd->RegisterBaseAddress
+ ));
+
+ DrhdLen = Drhd->Header.Length - sizeof(EFI_ACPI_DMAR_DRHD_HEADER);
+ DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Drhd + 1);
+ while (DrhdLen > 0) {
+ DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);
+ DrhdLen -= DmarDeviceScopeEntry->Length;
+ DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);
+ }
+
+ DEBUG ((DEBUG_INFO,
+ " ***************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR ACPI table.
+
+ @param[in] Dmar DMAR ACPI table
+**/
+VOID
+DumpAcpiDMAR (
+ IN EFI_ACPI_DMAR_HEADER *Dmar
+ )
+{
+ EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
+ INTN DmarLen;
+
+ if (Dmar == NULL) {
+ return;
+ }
+
+ //
+ // Dump Dmar table
+ //
+ DEBUG ((DEBUG_INFO,
+ "*****************************************************************************\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ "* DMAR Table *\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ "*****************************************************************************\n"
+ ));
+
+ DEBUG ((DEBUG_INFO,
+ (sizeof(UINTN) == sizeof(UINT64)) ?
+ "DMAR address ............................................. 0x%016lx\n" :
+ "DMAR address ............................................. 0x%08x\n",
+ Dmar
+ ));
+
+ DEBUG ((DEBUG_INFO,
+ " Table Contents:\n"
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Host Address Width ................................... 0x%02x\n",
+ Dmar->HostAddressWidth
+ ));
+ DEBUG ((DEBUG_INFO,
+ " Flags ................................................ 0x%02x\n",
+ Dmar->Flags
+ ));
+ DEBUG ((DEBUG_INFO,
+ " INTR_REMAP ......................................... 0x%02x\n",
+ Dmar->Flags & EFI_ACPI_DMAR_FLAGS_INTR_REMAP
+ ));
+ DEBUG ((DEBUG_INFO,
+ " X2APIC_OPT_OUT_SET ................................. 0x%02x\n",
+ Dmar->Flags & EFI_ACPI_DMAR_FLAGS_X2APIC_OPT_OUT
+ ));
+
+ DmarLen = Dmar->Header.Length - sizeof(EFI_ACPI_DMAR_HEADER);
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)(Dmar + 1);
+ while (DmarLen > 0) {
+ switch (DmarHeader->Type) {
+ case EFI_ACPI_DMAR_TYPE_DRHD:
+ DumpDmarDrhd ((EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader);
+ break;
+ case EFI_ACPI_DMAR_TYPE_RMRR:
+ DumpDmarRmrr ((EFI_ACPI_DMAR_RMRR_HEADER *)DmarHeader);
+ break;
+ case EFI_ACPI_DMAR_TYPE_ATSR:
+ DumpDmarAtsr ((EFI_ACPI_DMAR_ATSR_HEADER *)DmarHeader);
+ break;
+ case EFI_ACPI_DMAR_TYPE_RHSA:
+ DumpDmarRhsa ((EFI_ACPI_DMAR_RHSA_HEADER *)DmarHeader);
+ break;
+ case EFI_ACPI_DMAR_TYPE_ANDD:
+ DumpDmarAndd ((EFI_ACPI_DMAR_ANDD_HEADER *)DmarHeader);
+ break;
+ default:
+ break;
+ }
+ DmarLen -= DmarHeader->Length;
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
+ }
+
+ DEBUG ((DEBUG_INFO,
+ "*****************************************************************************\n\n"
+ ));
+
+ return;
+}
+
+/**
+ Dump DMAR ACPI table.
+**/
+VOID
+VtdDumpDmarTable (
+ VOID
+ )
+{
+ DumpAcpiDMAR ((EFI_ACPI_DMAR_HEADER *)(UINTN)mAcpiDmarTable);
+}
+
+/**
+ Get PCI device information from DMAR DevScopeEntry.
+
+ @param[in] Segment The segment number.
+ @param[in] DmarDevScopeEntry DMAR DevScopeEntry
+ @param[out] Bus The bus number.
+ @param[out] Device The device number.
+ @param[out] Function The function number.
+
+ @retval EFI_SUCCESS The PCI device information is returned.
+**/
+EFI_STATUS
+GetPciBusDeviceFunction (
+ IN UINT16 Segment,
+ IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDevScopeEntry,
+ OUT UINT8 *Bus,
+ OUT UINT8 *Device,
+ OUT UINT8 *Function
+ )
+{
+ EFI_ACPI_DMAR_PCI_PATH *DmarPciPath;
+ UINT8 MyBus;
+ UINT8 MyDevice;
+ UINT8 MyFunction;
+
+ DmarPciPath = (EFI_ACPI_DMAR_PCI_PATH *)((UINTN)(DmarDevScopeEntry + 1));
+ MyBus = DmarDevScopeEntry->StartBusNumber;
+ MyDevice = DmarPciPath->Device;
+ MyFunction = DmarPciPath->Function;
+
+ switch (DmarDevScopeEntry->Type) {
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT:
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:
+ while ((UINTN)DmarPciPath + sizeof(EFI_ACPI_DMAR_PCI_PATH) < (UINTN)DmarDevScopeEntry + DmarDevScopeEntry->Length) {
+ MyBus = PciSegmentRead8 (PCI_SEGMENT_LIB_ADDRESS(Segment, MyBus, MyDevice, MyFunction, PCI_BRIDGE_SECONDARY_BUS_REGISTER_OFFSET));
+ DmarPciPath ++;
+ MyDevice = DmarPciPath->Device;
+ MyFunction = DmarPciPath->Function;
+ }
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_IOAPIC:
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_MSI_CAPABLE_HPET:
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_ACPI_NAMESPACE_DEVICE:
+ break;
+ }
+
+ *Bus = MyBus;
+ *Device = MyDevice;
+ *Function = MyFunction;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Process DMAR DHRD table.
+
+ @param[in] VtdIndex The index of VTd engine.
+ @param[in] DmarDrhd The DRHD table.
+
+ @retval EFI_SUCCESS The DRHD table is processed.
+**/
+EFI_STATUS
+ProcessDhrd (
+ IN UINTN VtdIndex,
+ IN EFI_ACPI_DMAR_DRHD_HEADER *DmarDrhd
+ )
+{
+ EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDevScopeEntry;
+ UINT8 Bus;
+ UINT8 Device;
+ UINT8 Function;
+ UINT8 SecondaryBusNumber;
+ EFI_STATUS Status;
+ VTD_SOURCE_ID SourceId;
+
+ mVtdUnitInformation[VtdIndex].VtdUnitBaseAddress = (UINTN)DmarDrhd->RegisterBaseAddress;
+ DEBUG ((DEBUG_INFO," VTD (%d) BaseAddress - 0x%016lx\n", VtdIndex, DmarDrhd->RegisterBaseAddress));
+
+ mVtdUnitInformation[VtdIndex].Segment = DmarDrhd->SegmentNumber;
+
+ if ((DmarDrhd->Flags & EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL) != 0) {
+ mVtdUnitInformation[VtdIndex].PciDeviceInfo.IncludeAllFlag = TRUE;
+ DEBUG ((DEBUG_INFO," ProcessDhrd: with INCLUDE ALL\n"));
+
+ Status = ScanPciBus((VOID *)VtdIndex, DmarDrhd->SegmentNumber, 0, ScanBusCallbackRegisterPciDevice);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ } else {
+ mVtdUnitInformation[VtdIndex].PciDeviceInfo.IncludeAllFlag = FALSE;
+ DEBUG ((DEBUG_INFO," ProcessDhrd: without INCLUDE ALL\n"));
+ }
+
+ DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)(DmarDrhd + 1));
+ while ((UINTN)DmarDevScopeEntry < (UINTN)DmarDrhd + DmarDrhd->Header.Length) {
+
+ Status = GetPciBusDeviceFunction (DmarDrhd->SegmentNumber, DmarDevScopeEntry, &Bus, &Device, &Function);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ DEBUG ((DEBUG_INFO," ProcessDhrd: "));
+ switch (DmarDevScopeEntry->Type) {
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT:
+ DEBUG ((DEBUG_INFO,"PCI Endpoint"));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:
+ DEBUG ((DEBUG_INFO,"PCI-PCI bridge"));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_IOAPIC:
+ DEBUG ((DEBUG_INFO,"IOAPIC"));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_MSI_CAPABLE_HPET:
+ DEBUG ((DEBUG_INFO,"MSI Capable HPET"));
+ break;
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_ACPI_NAMESPACE_DEVICE:
+ DEBUG ((DEBUG_INFO,"ACPI Namespace Device"));
+ break;
+ }
+ DEBUG ((DEBUG_INFO," S%04x B%02x D%02x F%02x\n", DmarDrhd->SegmentNumber, Bus, Device, Function));
+
+ SourceId.Bits.Bus = Bus;
+ SourceId.Bits.Device = Device;
+ SourceId.Bits.Function = Function;
+
+ Status = RegisterPciDevice (VtdIndex, DmarDrhd->SegmentNumber, SourceId, DmarDevScopeEntry->Type, TRUE);
+ if (EFI_ERROR (Status)) {
+ //
+ // There might be duplication for special device other than standard PCI device.
+ //
+ switch (DmarDevScopeEntry->Type) {
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT:
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:
+ return Status;
+ }
+ }
+
+ switch (DmarDevScopeEntry->Type) {
+ case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:
+ SecondaryBusNumber = PciSegmentRead8 (PCI_SEGMENT_LIB_ADDRESS(DmarDrhd->SegmentNumber, Bus, Device, Function, PCI_BRIDGE_SECONDARY_BUS_REGISTER_OFFSET));
+ Status = ScanPciBus ((VOID *)VtdIndex, DmarDrhd->SegmentNumber, SecondaryBusNumber, ScanBusCallbackRegisterPciDevice);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ break;
+ default:
+ break;
+ }
+
+ DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDevScopeEntry + DmarDevScopeEntry->Length);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Process DMAR RMRR table.
+
+ @param[in] DmarRmrr The RMRR table.
+
+ @retval EFI_SUCCESS The RMRR table is processed.
+**/
+EFI_STATUS
+ProcessRmrr (
+ IN EFI_ACPI_DMAR_RMRR_HEADER *DmarRmrr
+ )
+{
+ EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDevScopeEntry;
+ UINT8 Bus;
+ UINT8 Device;
+ UINT8 Function;
+ EFI_STATUS Status;
+ VTD_SOURCE_ID SourceId;
+
+ DEBUG ((DEBUG_INFO," RMRR (Base 0x%016lx, Limit 0x%016lx)\n", DmarRmrr->ReservedMemoryRegionBaseAddress, DmarRmrr->ReservedMemoryRegionLimitAddress));
+
+ DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)(DmarRmrr + 1));
+ while ((UINTN)DmarDevScopeEntry < (UINTN)DmarRmrr + DmarRmrr->Header.Length) {
+ if (DmarDevScopeEntry->Type != EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT) {
+ DEBUG ((DEBUG_INFO,"RMRR DevScopeEntryType is not endpoint, type[0x%x] \n", DmarDevScopeEntry->Type));
+ return EFI_DEVICE_ERROR;
+ }
+
+ Status = GetPciBusDeviceFunction (DmarRmrr->SegmentNumber, DmarDevScopeEntry, &Bus, &Device, &Function);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ DEBUG ((DEBUG_INFO,"RMRR S%04x B%02x D%02x F%02x\n", DmarRmrr->SegmentNumber, Bus, Device, Function));
+
+ SourceId.Bits.Bus = Bus;
+ SourceId.Bits.Device = Device;
+ SourceId.Bits.Function = Function;
+ Status = SetAccessAttribute (
+ DmarRmrr->SegmentNumber,
+ SourceId,
+ DmarRmrr->ReservedMemoryRegionBaseAddress,
+ DmarRmrr->ReservedMemoryRegionLimitAddress + 1 - DmarRmrr->ReservedMemoryRegionBaseAddress,
+ EDKII_IOMMU_ACCESS_READ | EDKII_IOMMU_ACCESS_WRITE
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDevScopeEntry + DmarDevScopeEntry->Length);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Get VTd engine number.
+**/
+UINTN
+GetVtdEngineNumber (
+ VOID
+ )
+{
+ EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
+ UINTN VtdIndex;
+
+ VtdIndex = 0;
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
+ while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
+ switch (DmarHeader->Type) {
+ case EFI_ACPI_DMAR_TYPE_DRHD:
+ VtdIndex++;
+ break;
+ default:
+ break;
+ }
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
+ }
+ return VtdIndex ;
+}
+
+/**
+ Parse DMAR DRHD table.
+
+ @return EFI_SUCCESS The DMAR DRHD table is parsed.
+**/
+EFI_STATUS
+ParseDmarAcpiTableDrhd (
+ VOID
+ )
+{
+ EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
+ EFI_STATUS Status;
+ UINTN VtdIndex;
+
+ mVtdUnitNumber = GetVtdEngineNumber ();
+ DEBUG ((DEBUG_INFO," VtdUnitNumber - %d\n", mVtdUnitNumber));
+ ASSERT (mVtdUnitNumber > 0);
+ if (mVtdUnitNumber == 0) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ mVtdUnitInformation = AllocateZeroPool (sizeof(*mVtdUnitInformation) * mVtdUnitNumber);
+ ASSERT (mVtdUnitInformation != NULL);
+ if (mVtdUnitInformation == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ mVtdHostAddressWidthMask = LShiftU64 (1ull, mAcpiDmarTable->HostAddressWidth) - 1;
+
+ VtdIndex = 0;
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
+ while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
+ switch (DmarHeader->Type) {
+ case EFI_ACPI_DMAR_TYPE_DRHD:
+ ASSERT (VtdIndex < mVtdUnitNumber);
+ Status = ProcessDhrd (VtdIndex, (EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ VtdIndex++;
+
+ break;
+
+ default:
+ break;
+ }
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
+ }
+ ASSERT (VtdIndex == mVtdUnitNumber);
+
+ for (VtdIndex = 0; VtdIndex < mVtdUnitNumber; VtdIndex++) {
+ DumpPciDeviceInfo (VtdIndex);
+ }
+ return EFI_SUCCESS ;
+}
+
+/**
+ Parse DMAR DRHD table.
+
+ @return EFI_SUCCESS The DMAR DRHD table is parsed.
+**/
+EFI_STATUS
+ParseDmarAcpiTableRmrr (
+ VOID
+ )
+{
+ EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
+ EFI_STATUS Status;
+
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
+ while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
+ switch (DmarHeader->Type) {
+ case EFI_ACPI_DMAR_TYPE_RMRR:
+ Status = ProcessRmrr ((EFI_ACPI_DMAR_RMRR_HEADER *)DmarHeader);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ break;
+ default:
+ break;
+ }
+ DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
+ }
+ return EFI_SUCCESS ;
+}
+
+/**
+ This function scan ACPI table in RSDT.
+
+ @param[in] Rsdt ACPI RSDT
+ @param[in] Signature ACPI table signature
+
+ @return ACPI table
+**/
+VOID *
+ScanTableInRSDT (
+ IN RSDT_TABLE *Rsdt,
+ IN UINT32 Signature
+ )
+{
+ UINTN Index;
+ UINT32 EntryCount;
+ UINT32 *EntryPtr;
+ EFI_ACPI_DESCRIPTION_HEADER *Table;
+
+ EntryCount = (Rsdt->Header.Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / sizeof(UINT32);
+
+ EntryPtr = &Rsdt->Entry;
+ for (Index = 0; Index < EntryCount; Index ++, EntryPtr ++) {
+ Table = (EFI_ACPI_DESCRIPTION_HEADER*)((UINTN)(*EntryPtr));
+ if (Table->Signature == Signature) {
+ return Table;
+ }
+ }
+
+ return NULL;
+}
+
+/**
+ This function scan ACPI table in XSDT.
+
+ @param[in] Xsdt ACPI XSDT
+ @param[in] Signature ACPI table signature
+
+ @return ACPI table
+**/
+VOID *
+ScanTableInXSDT (
+ IN XSDT_TABLE *Xsdt,
+ IN UINT32 Signature
+ )
+{
+ UINTN Index;
+ UINT32 EntryCount;
+ UINT64 EntryPtr;
+ UINTN BasePtr;
+ EFI_ACPI_DESCRIPTION_HEADER *Table;
+
+ EntryCount = (Xsdt->Header.Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / sizeof(UINT64);
+
+ BasePtr = (UINTN)(&(Xsdt->Entry));
+ for (Index = 0; Index < EntryCount; Index ++) {
+ CopyMem (&EntryPtr, (VOID *)(BasePtr + Index * sizeof(UINT64)), sizeof(UINT64));
+ Table = (EFI_ACPI_DESCRIPTION_HEADER*)((UINTN)(EntryPtr));
+ if (Table->Signature == Signature) {
+ return Table;
+ }
+ }
+
+ return NULL;
+}
+
+/**
+ This function scan ACPI table in RSDP.
+
+ @param[in] Rsdp ACPI RSDP
+ @param[in] Signature ACPI table signature
+
+ @return ACPI table
+**/
+VOID *
+FindAcpiPtr (
+ IN EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp,
+ IN UINT32 Signature
+ )
+{
+ EFI_ACPI_DESCRIPTION_HEADER *AcpiTable;
+ RSDT_TABLE *Rsdt;
+ XSDT_TABLE *Xsdt;
+
+ AcpiTable = NULL;
+
+ //
+ // Check ACPI2.0 table
+ //
+ Rsdt = (RSDT_TABLE *)(UINTN)Rsdp->RsdtAddress;
+ Xsdt = NULL;
+ if ((Rsdp->Revision >= 2) && (Rsdp->XsdtAddress < (UINT64)(UINTN)-1)) {
+ Xsdt = (XSDT_TABLE *)(UINTN)Rsdp->XsdtAddress;
+ }
+ //
+ // Check Xsdt
+ //
+ if (Xsdt != NULL) {
+ AcpiTable = ScanTableInXSDT (Xsdt, Signature);
+ }
+ //
+ // Check Rsdt
+ //
+ if ((AcpiTable == NULL) && (Rsdt != NULL)) {
+ AcpiTable = ScanTableInRSDT (Rsdt, Signature);
+ }
+
+ return AcpiTable;
+}
+
+/**
+ Get the DMAR ACPI table.
+
+ @retval EFI_SUCCESS The DMAR ACPI table is got.
+ @retval EFI_NOT_FOUND The DMAR ACPI table is not found.
+**/
+EFI_STATUS
+GetDmarAcpiTable (
+ VOID
+ )
+{
+ VOID *AcpiTable;
+ EFI_STATUS Status;
+
+ AcpiTable = NULL;
+ Status = EfiGetSystemConfigurationTable (
+ &gEfiAcpi20TableGuid,
+ &AcpiTable
+ );
+ if (EFI_ERROR (Status)) {
+ Status = EfiGetSystemConfigurationTable (
+ &gEfiAcpiTableGuid,
+ &AcpiTable
+ );
+ }
+ ASSERT (AcpiTable != NULL);
+
+ mAcpiDmarTable = FindAcpiPtr (
+ (EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)AcpiTable,
+ EFI_ACPI_4_0_DMA_REMAPPING_TABLE_SIGNATURE
+ );
+ DEBUG ((DEBUG_INFO,"DMAR Table - 0x%08x\n", mAcpiDmarTable));
+ if (mAcpiDmarTable == NULL) {
+ return EFI_UNSUPPORTED;
+ }
+ VtdDumpDmarTable();
+
+ return EFI_SUCCESS;
+}
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