diff options
Diffstat (limited to 'IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c')
| -rw-r--r-- | IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c new file mode 100644 index 0000000000..68b25a79bf --- /dev/null +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c @@ -0,0 +1,157 @@ +/** @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"
+
+/**
+ Create extended context entry.
+
+ @param[in] VtdIndex The index of the VTd engine.
+
+ @retval EFI_SUCCESS The extended context entry is created.
+ @retval EFI_OUT_OF_RESOURCE No enough resource to create extended context entry.
+**/
+EFI_STATUS
+CreateExtContextEntry (
+ IN UINTN VtdIndex
+ )
+{
+ UINTN Index;
+ VOID *Buffer;
+ UINTN RootPages;
+ UINTN ContextPages;
+ VTD_EXT_ROOT_ENTRY *ExtRootEntry;
+ VTD_EXT_CONTEXT_ENTRY *ExtContextEntryTable;
+ VTD_EXT_CONTEXT_ENTRY *ExtContextEntry;
+ VTD_SOURCE_ID *PciSourceId;
+ VTD_SOURCE_ID SourceId;
+ UINTN MaxBusNumber;
+ UINTN EntryTablePages;
+
+ MaxBusNumber = 0;
+ for (Index = 0; Index < mVtdUnitInformation[VtdIndex].PciDeviceInfo.PciDeviceDataNumber; Index++) {
+ PciSourceId = &mVtdUnitInformation[VtdIndex].PciDeviceInfo.PciDeviceData[Index].PciSourceId;
+ if (PciSourceId->Bits.Bus > MaxBusNumber) {
+ MaxBusNumber = PciSourceId->Bits.Bus;
+ }
+ }
+ DEBUG ((DEBUG_INFO," MaxBusNumber - 0x%x\n", MaxBusNumber));
+
+ RootPages = EFI_SIZE_TO_PAGES (sizeof (VTD_EXT_ROOT_ENTRY) * VTD_ROOT_ENTRY_NUMBER);
+ ContextPages = EFI_SIZE_TO_PAGES (sizeof (VTD_EXT_CONTEXT_ENTRY) * VTD_CONTEXT_ENTRY_NUMBER);
+ EntryTablePages = RootPages + ContextPages * (MaxBusNumber + 1);
+ Buffer = AllocateZeroPages (EntryTablePages);
+ if (Buffer == NULL) {
+ DEBUG ((DEBUG_INFO,"Could not Alloc Root Entry Table.. \n"));
+ return EFI_OUT_OF_RESOURCES;
+ }
+ mVtdUnitInformation[VtdIndex].ExtRootEntryTable = (VTD_EXT_ROOT_ENTRY *)Buffer;
+ Buffer = (UINT8 *)Buffer + EFI_PAGES_TO_SIZE (RootPages);
+
+ for (Index = 0; Index < mVtdUnitInformation[VtdIndex].PciDeviceInfo.PciDeviceDataNumber; Index++) {
+ PciSourceId = &mVtdUnitInformation[VtdIndex].PciDeviceInfo.PciDeviceData[Index].PciSourceId;
+
+ SourceId.Bits.Bus = PciSourceId->Bits.Bus;
+ SourceId.Bits.Device = PciSourceId->Bits.Device;
+ SourceId.Bits.Function = PciSourceId->Bits.Function;
+
+ ExtRootEntry = &mVtdUnitInformation[VtdIndex].ExtRootEntryTable[SourceId.Index.RootIndex];
+ if (ExtRootEntry->Bits.LowerPresent == 0) {
+ ExtRootEntry->Bits.LowerContextTablePointerLo = (UINT32) RShiftU64 ((UINT64)(UINTN)Buffer, 12);
+ ExtRootEntry->Bits.LowerContextTablePointerHi = (UINT32) RShiftU64 ((UINT64)(UINTN)Buffer, 32);
+ ExtRootEntry->Bits.LowerPresent = 1;
+ ExtRootEntry->Bits.UpperContextTablePointerLo = (UINT32) RShiftU64 ((UINT64)(UINTN)Buffer, 12) + 1;
+ ExtRootEntry->Bits.UpperContextTablePointerHi = (UINT32) RShiftU64 (RShiftU64 ((UINT64)(UINTN)Buffer, 12) + 1, 20);
+ ExtRootEntry->Bits.UpperPresent = 1;
+ FlushPageTableMemory (VtdIndex, (UINTN)ExtRootEntry, sizeof(*ExtRootEntry));
+ Buffer = (UINT8 *)Buffer + EFI_PAGES_TO_SIZE (ContextPages);
+ }
+
+ ExtContextEntryTable = (VTD_EXT_CONTEXT_ENTRY *)(UINTN)VTD_64BITS_ADDRESS(ExtRootEntry->Bits.LowerContextTablePointerLo, ExtRootEntry->Bits.LowerContextTablePointerHi) ;
+ ExtContextEntry = &ExtContextEntryTable[SourceId.Index.ContextIndex];
+ ExtContextEntry->Bits.TranslationType = 0;
+ ExtContextEntry->Bits.FaultProcessingDisable = 0;
+ ExtContextEntry->Bits.Present = 0;
+
+ DEBUG ((DEBUG_INFO,"DOMAIN: S%04x, B%02x D%02x F%02x\n", mVtdUnitInformation[VtdIndex].Segment, SourceId.Bits.Bus, SourceId.Bits.Device, SourceId.Bits.Function));
+
+ switch (mVtdUnitInformation[VtdIndex].CapReg.Bits.SAGAW) {
+ case BIT1:
+ ExtContextEntry->Bits.AddressWidth = 0x1;
+ break;
+ case BIT2:
+ ExtContextEntry->Bits.AddressWidth = 0x2;
+ break;
+ }
+ FlushPageTableMemory (VtdIndex, (UINTN)ExtContextEntry, sizeof(*ExtContextEntry));
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Dump DMAR extended context entry table.
+
+ @param[in] ExtRootEntry DMAR extended root entry.
+**/
+VOID
+DumpDmarExtContextEntryTable (
+ IN VTD_EXT_ROOT_ENTRY *ExtRootEntry
+ )
+{
+ UINTN Index;
+ UINTN Index2;
+ VTD_EXT_CONTEXT_ENTRY *ExtContextEntry;
+
+ DEBUG ((DEBUG_INFO,"=========================\n"));
+ DEBUG ((DEBUG_INFO,"DMAR ExtContext Entry Table:\n"));
+
+ DEBUG ((DEBUG_INFO,"ExtRootEntry Address - 0x%x\n", ExtRootEntry));
+
+ for (Index = 0; Index < VTD_ROOT_ENTRY_NUMBER; Index++) {
+ if ((ExtRootEntry[Index].Uint128.Uint64Lo != 0) || (ExtRootEntry[Index].Uint128.Uint64Hi != 0)) {
+ DEBUG ((DEBUG_INFO," ExtRootEntry(0x%02x) B%02x - 0x%016lx %016lx\n",
+ Index, Index, ExtRootEntry[Index].Uint128.Uint64Hi, ExtRootEntry[Index].Uint128.Uint64Lo));
+ }
+ if (ExtRootEntry[Index].Bits.LowerPresent == 0) {
+ continue;
+ }
+ ExtContextEntry = (VTD_EXT_CONTEXT_ENTRY *)(UINTN)VTD_64BITS_ADDRESS(ExtRootEntry[Index].Bits.LowerContextTablePointerLo, ExtRootEntry[Index].Bits.LowerContextTablePointerHi);
+ for (Index2 = 0; Index2 < VTD_CONTEXT_ENTRY_NUMBER/2; Index2++) {
+ if ((ExtContextEntry[Index2].Uint256.Uint64_1 != 0) || (ExtContextEntry[Index2].Uint256.Uint64_2 != 0) ||
+ (ExtContextEntry[Index2].Uint256.Uint64_3 != 0) || (ExtContextEntry[Index2].Uint256.Uint64_4 != 0)) {
+ DEBUG ((DEBUG_INFO," ExtContextEntryLower(0x%02x) D%02xF%02x - 0x%016lx %016lx %016lx %016lx\n",
+ Index2, Index2 >> 3, Index2 & 0x7, ExtContextEntry[Index2].Uint256.Uint64_4, ExtContextEntry[Index2].Uint256.Uint64_3, ExtContextEntry[Index2].Uint256.Uint64_2, ExtContextEntry[Index2].Uint256.Uint64_1));
+ }
+ if (ExtContextEntry[Index2].Bits.Present == 0) {
+ continue;
+ }
+ }
+
+ if (ExtRootEntry[Index].Bits.UpperPresent == 0) {
+ continue;
+ }
+ ExtContextEntry = (VTD_EXT_CONTEXT_ENTRY *)(UINTN)VTD_64BITS_ADDRESS(ExtRootEntry[Index].Bits.UpperContextTablePointerLo, ExtRootEntry[Index].Bits.UpperContextTablePointerHi);
+ for (Index2 = 0; Index2 < VTD_CONTEXT_ENTRY_NUMBER/2; Index2++) {
+ if ((ExtContextEntry[Index2].Uint256.Uint64_1 != 0) || (ExtContextEntry[Index2].Uint256.Uint64_2 != 0) ||
+ (ExtContextEntry[Index2].Uint256.Uint64_3 != 0) || (ExtContextEntry[Index2].Uint256.Uint64_4 != 0)) {
+ DEBUG ((DEBUG_INFO," ExtContextEntryUpper(0x%02x) D%02xF%02x - 0x%016lx %016lx %016lx %016lx\n",
+ Index2, (Index2 + 128) >> 3, (Index2 + 128) & 0x7, ExtContextEntry[Index2].Uint256.Uint64_4, ExtContextEntry[Index2].Uint256.Uint64_3, ExtContextEntry[Index2].Uint256.Uint64_2, ExtContextEntry[Index2].Uint256.Uint64_1));
+ }
+ if (ExtContextEntry[Index2].Bits.Present == 0) {
+ continue;
+ }
+ }
+ }
+ DEBUG ((DEBUG_INFO,"=========================\n"));
+}
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