IntelSiliconPkg/IntelVTdPmrPei: Move to feature dir.

Move IntelVTdPmrPei to Feature/VTd/IntelVTdPmrPei.

Suggested-by: Star Zeng <star.zeng@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

6 files changed, 0 insertions, 1096 deletions

diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmr.c b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmr.c
deleted file mode 100644
index ef08e2991f..0000000000
--- a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmr.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/** @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 <PiPei.h>

-#include <Library/BaseLib.h>

-#include <Library/BaseMemoryLib.h>

-#include <Library/IoLib.h>

-#include <Library/DebugLib.h>

-#include <IndustryStandard/Vtd.h>

-#include <Ppi/VTdInfo.h>

-

-#include "IntelVTdPmrPei.h"

-

-extern EDKII_VTD_INFO_PPI                *mVTdInfoPpi;

-

-/**

-  Get protected low memory alignment.

-

-  @param VtdUnitBaseAddress The base address of the VTd engine.

-

-  @return protected low memory alignment.

-**/

-UINT32

-GetPlmrAlignment (

-  IN UINTN         VtdUnitBaseAddress

-  )

-{

-  UINT32        Data32;

-

-  MmioWrite32 (VtdUnitBaseAddress + R_PMEN_LOW_BASE_REG, 0xFFFFFFFF);

-  Data32 = MmioRead32 (VtdUnitBaseAddress + R_PMEN_LOW_BASE_REG);

-  Data32 = ~Data32 + 1;

-

-  return Data32;

-}

-

-/**

-  Get protected high memory alignment.

-

-  @param VtdUnitBaseAddress The base address of the VTd engine.

-

-  @return protected high memory alignment.

-**/

-UINT64

-GetPhmrAlignment (

-  IN UINTN         VtdUnitBaseAddress

-  )

-{

-  UINT64        Data64;

-  UINT8         HostAddressWidth;

-

-  HostAddressWidth = mVTdInfoPpi->HostAddressWidth;

-

-  MmioWrite64 (VtdUnitBaseAddress + R_PMEN_HIGH_BASE_REG, 0xFFFFFFFFFFFFFFFF);

-  Data64 = MmioRead64 (VtdUnitBaseAddress + R_PMEN_HIGH_BASE_REG);

-  Data64 = ~Data64 + 1;

-  Data64 = Data64 & (LShiftU64 (1, HostAddressWidth) - 1);

-

-  return Data64;

-}

-

-/**

-  Get protected low memory alignment.

-

-  @return protected low memory alignment.

-**/

-UINT32

-GetLowMemoryAlignment (

-  VOID

-  )

-{

-  UINTN         Index;

-  UINT32        Alignment;

-  UINT32        FinalAlignment;

-

-  FinalAlignment = 0;

-  for (Index = 0; Index < mVTdInfoPpi->VTdEngineCount; Index++) {

-    Alignment = GetPlmrAlignment ((UINTN)mVTdInfoPpi->VTdEngineAddress[Index]);

-    if (FinalAlignment < Alignment) {

-      FinalAlignment = Alignment;

-    }

-  }

-  return FinalAlignment;

-}

-

-/**

-  Get protected high memory alignment.

-

-  @return protected high memory alignment.

-**/

-UINT64

-GetHighMemoryAlignment (

-  VOID

-  )

-{

-  UINTN         Index;

-  UINT64        Alignment;

-  UINT64        FinalAlignment;

-

-  FinalAlignment = 0;

-  for (Index = 0; Index < mVTdInfoPpi->VTdEngineCount; Index++) {

-    Alignment = GetPhmrAlignment ((UINTN)mVTdInfoPpi->VTdEngineAddress[Index]);

-    if (FinalAlignment < Alignment) {

-      FinalAlignment = Alignment;

-    }

-  }

-  return FinalAlignment;

-}

-

-/**

-  Enable PMR in the VTd engine.

-

-  @param VtdUnitBaseAddress The base address of the VTd engine.

-

-  @retval EFI_SUCCESS      The PMR is enabled.

-  @retval EFI_UNSUPPORTED  The PMR is not supported.

-**/

-EFI_STATUS

-EnablePmr (

-  IN UINTN         VtdUnitBaseAddress

-  )

-{

-  UINT32        Reg32;

-  VTD_CAP_REG   CapReg;

-

-  CapReg.Uint64 = MmioRead64 (VtdUnitBaseAddress + R_CAP_REG);

-  if (CapReg.Bits.PLMR == 0 || CapReg.Bits.PHMR == 0) {

-    return EFI_UNSUPPORTED;

-  }

-

-  Reg32 = MmioRead32 (VtdUnitBaseAddress + R_PMEN_ENABLE_REG);

-  if ((Reg32 & BIT0) == 0) {

-    MmioWrite32 (VtdUnitBaseAddress + R_PMEN_ENABLE_REG, BIT31);

-    do {

-      Reg32 = MmioRead32 (VtdUnitBaseAddress + R_PMEN_ENABLE_REG);

-    } while((Reg32 & BIT0) == 0);

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Disable PMR in the VTd engine.

-

-  @param VtdUnitBaseAddress The base address of the VTd engine.

-

-  @retval EFI_SUCCESS      The PMR is disabled.

-  @retval EFI_UNSUPPORTED  The PMR is not supported.

-**/

-EFI_STATUS

-DisablePmr (

-  IN UINTN         VtdUnitBaseAddress

-  )

-{

-  UINT32        Reg32;

-  VTD_CAP_REG   CapReg;

-

-  CapReg.Uint64 = MmioRead64 (VtdUnitBaseAddress + R_CAP_REG);

-  if (CapReg.Bits.PLMR == 0 || CapReg.Bits.PHMR == 0) {

-    return EFI_UNSUPPORTED;

-  }

-

-  Reg32 = MmioRead32 (VtdUnitBaseAddress + R_PMEN_ENABLE_REG);

-  if ((Reg32 & BIT0) != 0) {

-    MmioWrite32 (VtdUnitBaseAddress + R_PMEN_ENABLE_REG, 0x0);

-    do {

-      Reg32 = MmioRead32 (VtdUnitBaseAddress + R_PMEN_ENABLE_REG);

-    } while((Reg32 & BIT0) != 0);

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Set PMR region in the VTd engine.

-

-  @param VtdUnitBaseAddress The base address of the VTd engine.

-  @param LowMemoryBase      The protected low memory region base.

-  @param LowMemoryLength    The protected low memory region length.

-  @param HighMemoryBase     The protected high memory region base.

-  @param HighMemoryLength   The protected high memory region length.

-

-  @retval EFI_SUCCESS      The PMR is set to protected region.

-  @retval EFI_UNSUPPORTED  The PMR is not supported.

-**/

-EFI_STATUS

-SetPmrRegion (

-  IN UINTN         VtdUnitBaseAddress,

-  IN UINT32        LowMemoryBase,

-  IN UINT32        LowMemoryLength,

-  IN UINT64        HighMemoryBase,

-  IN UINT64        HighMemoryLength

-  )

-{

-  VTD_CAP_REG   CapReg;

-  UINT32        PlmrAlignment;

-  UINT64        PhmrAlignment;

-

-  DEBUG ((DEBUG_INFO, "VtdUnitBaseAddress - 0x%x\n", VtdUnitBaseAddress));

-

-  CapReg.Uint64 = MmioRead64 (VtdUnitBaseAddress + R_CAP_REG);

-  if (CapReg.Bits.PLMR == 0 || CapReg.Bits.PHMR == 0) {

-    DEBUG ((DEBUG_ERROR, "PLMR/PHMR unsupported\n"));

-    return EFI_UNSUPPORTED;

-  }

-

-  PlmrAlignment = GetPlmrAlignment (VtdUnitBaseAddress);

-  DEBUG ((DEBUG_INFO, "PlmrAlignment - 0x%x\n", PlmrAlignment));

-  PhmrAlignment = GetPhmrAlignment (VtdUnitBaseAddress);

-  DEBUG ((DEBUG_INFO, "PhmrAlignment - 0x%lx\n", PhmrAlignment));

-

-  if ((LowMemoryBase    != ALIGN_VALUE(LowMemoryBase, PlmrAlignment)) ||

-      (LowMemoryLength  != ALIGN_VALUE(LowMemoryLength, PlmrAlignment)) ||

-      (HighMemoryBase   != ALIGN_VALUE(HighMemoryBase, PhmrAlignment)) ||

-      (HighMemoryLength != ALIGN_VALUE(HighMemoryLength, PhmrAlignment))) {

-    DEBUG ((DEBUG_ERROR, "PLMR/PHMR alignment issue\n"));

-    return EFI_UNSUPPORTED;

-  }

-

-  if (LowMemoryBase == 0 && LowMemoryLength == 0) {

-    LowMemoryBase = 0xFFFFFFFF;

-  }

-  if (HighMemoryBase == 0 && HighMemoryLength == 0) {

-    HighMemoryBase = 0xFFFFFFFFFFFFFFFF;

-  }

-

-  MmioWrite32 (VtdUnitBaseAddress + R_PMEN_LOW_BASE_REG,    LowMemoryBase);

-  MmioWrite32 (VtdUnitBaseAddress + R_PMEN_LOW_LIMITE_REG,  LowMemoryBase + LowMemoryLength - 1);

-  MmioWrite64 (VtdUnitBaseAddress + R_PMEN_HIGH_BASE_REG,   HighMemoryBase);

-  MmioWrite64 (VtdUnitBaseAddress + R_PMEN_HIGH_LIMITE_REG, HighMemoryBase + HighMemoryLength - 1);

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Set DMA protected region.

-

-  @param LowMemoryBase      The protected low memory region base.

-  @param LowMemoryLength    The protected low memory region length.

-  @param HighMemoryBase     The protected high memory region base.

-  @param HighMemoryLength   The protected high memory region length.

-

-  @retval EFI_SUCCESS      The DMA protection is set.

-  @retval EFI_UNSUPPORTED  The DMA protection is not set.

-**/

-EFI_STATUS

-SetDmaProtectedRange (

-  IN UINT32        LowMemoryBase,

-  IN UINT32        LowMemoryLength,

-  IN UINT64        HighMemoryBase,

-  IN UINT64        HighMemoryLength

-  )

-{

-  UINTN       Index;

-  EFI_STATUS  Status;

-

-  DEBUG ((DEBUG_INFO, "SetDmaProtectedRange - [0x%x, 0x%x] [0x%lx, 0x%lx]\n", LowMemoryBase, LowMemoryLength, HighMemoryBase, HighMemoryLength));

-

-  for (Index = 0; Index < mVTdInfoPpi->VTdEngineCount; Index++) {

-    DisablePmr ((UINTN)mVTdInfoPpi->VTdEngineAddress[Index]);

-    Status = SetPmrRegion (

-               (UINTN)mVTdInfoPpi->VTdEngineAddress[Index],

-               LowMemoryBase,

-               LowMemoryLength,

-               HighMemoryBase,

-               HighMemoryLength

-               );

-    if (EFI_ERROR(Status)) {

-      return Status;

-    }

-    Status = EnablePmr ((UINTN)mVTdInfoPpi->VTdEngineAddress[Index]);

-    if (EFI_ERROR(Status)) {

-      return Status;

-    }

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Diable DMA protection.

-

-  @retval DMA protection is disabled.

-**/

-EFI_STATUS

-DisableDmaProtection (

-  VOID

-  )

-{

-  UINTN       Index;

-  EFI_STATUS  Status;

-

-  DEBUG ((DEBUG_INFO, "DisableDmaProtection\n"));

-

-  for (Index = 0; Index < mVTdInfoPpi->VTdEngineCount; Index++) {

-    Status = DisablePmr ((UINTN)mVTdInfoPpi->VTdEngineAddress[Index]);

-    if (EFI_ERROR(Status)) {

-      return Status;

-    }

-  }

-

-  return EFI_SUCCESS;

-}

diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.c b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.c
deleted file mode 100644
index d118b7ef26..0000000000
--- a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.c
+++ /dev/null
@@ -1,615 +0,0 @@
-/** @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 <Uefi.h>

-#include <PiPei.h>

-#include <Library/BaseLib.h>

-#include <Library/BaseMemoryLib.h>

-#include <Library/MemoryAllocationLib.h>

-#include <Library/IoLib.h>

-#include <Library/DebugLib.h>

-#include <Library/PeiServicesLib.h>

-#include <Library/HobLib.h>

-#include <IndustryStandard/Vtd.h>

-#include <Ppi/IoMmu.h>

-#include <Ppi/VTdInfo.h>

-

-#include "IntelVTdPmrPei.h"

-

-#define  TOTAL_DMA_BUFFER_SIZE    SIZE_4MB

-

-EDKII_VTD_INFO_PPI                *mVTdInfoPpi;

-UINTN                             mDmaBufferBase;

-UINTN                             mDmaBufferSize = TOTAL_DMA_BUFFER_SIZE;

-UINTN                             mDmaBufferCurrentTop;

-UINTN                             mDmaBufferCurrentBottom;

-

-#define MAP_INFO_SIGNATURE  SIGNATURE_32 ('D', 'M', 'A', 'P')

-typedef struct {

-  UINT32                                    Signature;

-  EDKII_IOMMU_OPERATION                     Operation;

-  UINTN                                     NumberOfBytes;

-  EFI_PHYSICAL_ADDRESS                      HostAddress;

-  EFI_PHYSICAL_ADDRESS                      DeviceAddress;

-} MAP_INFO;

-

-/**

-

-  PEI Memory Layout:

-

-              +------------------+ <------- EfiMemoryTop

-              |   PEI allocated  |

-  =========== +==================+

-       ^      |    Commom Buf    |

-       |      |  --------------  |

-  DMA Buffer  |   * DMA FREE *   |

-       |      |  --------------  |

-       V      |  Read/Write Buf  |

-  =========== +==================+

-              |   PEI allocated  |

-              |  --------------  | <------- EfiFreeMemoryTop

-              |   * PEI FREE *   |

-              |  --------------  | <------- EfiFreeMemoryBottom

-              |       hob        |

-              |  --------------  |

-              |      Stack       |

-              +------------------+ <------- EfiMemoryBottom / Stack Bottom

-

-              +------------------+

-              |   Mem Alloc Hob  |

-              +------------------+

-

-**/

-

-

-/**

-  Set IOMMU attribute for a system memory.

-

-  If the IOMMU PPI exists, the system memory cannot be used

-  for DMA by default.

-

-  When a device requests a DMA access for a system memory,

-  the device driver need use SetAttribute() to update the IOMMU

-  attribute to request DMA access (read and/or write).

-

-  @param[in]  This              The PPI instance pointer.

-  @param[in]  Mapping           The mapping value returned from Map().

-  @param[in]  IoMmuAccess       The IOMMU access.

-

-  @retval EFI_SUCCESS            The IoMmuAccess is set for the memory range specified by DeviceAddress and Length.

-  @retval EFI_INVALID_PARAMETER  Mapping is not a value that was returned by Map().

-  @retval EFI_INVALID_PARAMETER  IoMmuAccess specified an illegal combination of access.

-  @retval EFI_UNSUPPORTED        The bit mask of IoMmuAccess is not supported by the IOMMU.

-  @retval EFI_UNSUPPORTED        The IOMMU does not support the memory range specified by Mapping.

-  @retval EFI_OUT_OF_RESOURCES   There are not enough resources available to modify the IOMMU access.

-  @retval EFI_DEVICE_ERROR       The IOMMU device reported an error while attempting the operation.

-

-**/

-EFI_STATUS

-EFIAPI

-PeiIoMmuSetAttribute (

-  IN EDKII_IOMMU_PPI       *This,

-  IN VOID                  *Mapping,

-  IN UINT64                IoMmuAccess

-  )

-{

-  return EFI_SUCCESS;

-}

-

-/**

-  Provides the controller-specific addresses required to access system memory from a

-  DMA bus master.

-

-  @param  This                  The PPI instance pointer.

-  @param  Operation             Indicates if the bus master is going to read or write to system memory.

-  @param  HostAddress           The system memory address to map to the PCI controller.

-  @param  NumberOfBytes         On input the number of bytes to map. On output the number of bytes

-                                that were mapped.

-  @param  DeviceAddress         The resulting map address for the bus master PCI controller to use to

-                                access the hosts HostAddress.

-  @param  Mapping               A resulting value to pass to Unmap().

-

-  @retval EFI_SUCCESS           The range was mapped for the returned NumberOfBytes.

-  @retval EFI_UNSUPPORTED       The HostAddress cannot be mapped as a common buffer.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a lack of resources.

-  @retval EFI_DEVICE_ERROR      The system hardware could not map the requested address.

-

-**/

-EFI_STATUS

-EFIAPI

-PeiIoMmuMap (

-  IN     EDKII_IOMMU_PPI                            *This,

-  IN     EDKII_IOMMU_OPERATION                      Operation,

-  IN     VOID                                       *HostAddress,

-  IN OUT UINTN                                      *NumberOfBytes,

-  OUT    EFI_PHYSICAL_ADDRESS                       *DeviceAddress,

-  OUT    VOID                                       **Mapping

-  )

-{

-  MAP_INFO   *MapInfo;

-  UINTN      Length;

-

-  if (Operation == EdkiiIoMmuOperationBusMasterCommonBuffer ||

-      Operation == EdkiiIoMmuOperationBusMasterCommonBuffer64) {

-    *DeviceAddress = (UINTN)HostAddress;

-    *Mapping = 0;

-    return EFI_SUCCESS;

-  }

-

-  DEBUG ((DEBUG_VERBOSE, "PeiIoMmuMap - HostAddress - 0x%x, NumberOfBytes - %x\n", HostAddress, *NumberOfBytes));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentTop - %x\n", mDmaBufferCurrentTop));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentBottom - %x\n", mDmaBufferCurrentBottom));

-

-  Length = *NumberOfBytes + sizeof(MAP_INFO);

-  if (Length > mDmaBufferCurrentTop - mDmaBufferCurrentBottom) {

-    DEBUG ((DEBUG_ERROR, "PeiIoMmuMap - OUT_OF_RESOURCE\n"));

-    ASSERT (FALSE);

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-  *DeviceAddress = mDmaBufferCurrentBottom;

-  mDmaBufferCurrentBottom += Length;

-

-  MapInfo = (VOID *)(UINTN)(*DeviceAddress + *NumberOfBytes);

-  MapInfo->Signature     = MAP_INFO_SIGNATURE;

-  MapInfo->Operation     = Operation;

-  MapInfo->NumberOfBytes = *NumberOfBytes;

-  MapInfo->HostAddress   = (UINTN)HostAddress;

-  MapInfo->DeviceAddress = *DeviceAddress;

-  *Mapping = MapInfo;

-  DEBUG ((DEBUG_VERBOSE, "  Op(%x):DeviceAddress - %x, Mapping - %x\n", Operation, (UINTN)*DeviceAddress, MapInfo));

-

-  //

-  // If this is a read operation from the Bus Master's point of view,

-  // then copy the contents of the real buffer into the mapped buffer

-  // so the Bus Master can read the contents of the real buffer.

-  //

-  if (Operation == EdkiiIoMmuOperationBusMasterRead ||

-      Operation == EdkiiIoMmuOperationBusMasterRead64) {

-    CopyMem (

-      (VOID *) (UINTN) MapInfo->DeviceAddress,

-      (VOID *) (UINTN) MapInfo->HostAddress,

-      MapInfo->NumberOfBytes

-      );

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Completes the Map() operation and releases any corresponding resources.

-

-  @param  This                  The PPI instance pointer.

-  @param  Mapping               The mapping value returned from Map().

-

-  @retval EFI_SUCCESS           The range was unmapped.

-  @retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by Map().

-  @retval EFI_DEVICE_ERROR      The data was not committed to the target system memory.

-**/

-EFI_STATUS

-EFIAPI

-PeiIoMmuUnmap (

-  IN  EDKII_IOMMU_PPI                          *This,

-  IN  VOID                                     *Mapping

-  )

-{

-  MAP_INFO   *MapInfo;

-  UINTN      Length;

-

-  if (Mapping == NULL) {

-    return EFI_SUCCESS;

-  }

-

-  DEBUG ((DEBUG_VERBOSE, "PeiIoMmuUnmap - Mapping - %x\n", Mapping));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentTop - %x\n", mDmaBufferCurrentTop));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentBottom - %x\n", mDmaBufferCurrentBottom));

-

-  MapInfo = Mapping;

-  ASSERT (MapInfo->Signature == MAP_INFO_SIGNATURE);

-  DEBUG ((DEBUG_VERBOSE, "  Op(%x):DeviceAddress - %x, NumberOfBytes - %x\n", MapInfo->Operation, (UINTN)MapInfo->DeviceAddress, MapInfo->NumberOfBytes));

-

-  //

-  // If this is a write operation from the Bus Master's point of view,

-  // then copy the contents of the mapped buffer into the real buffer

-  // so the processor can read the contents of the real buffer.

-  //

-  if (MapInfo->Operation == EdkiiIoMmuOperationBusMasterWrite ||

-      MapInfo->Operation == EdkiiIoMmuOperationBusMasterWrite64) {

-    CopyMem (

-      (VOID *) (UINTN) MapInfo->HostAddress,

-      (VOID *) (UINTN) MapInfo->DeviceAddress,

-      MapInfo->NumberOfBytes

-      );

-  }

-

-  Length = MapInfo->NumberOfBytes + sizeof(MAP_INFO);

-  if (mDmaBufferCurrentBottom == MapInfo->DeviceAddress + Length) {

-    mDmaBufferCurrentBottom -= Length;

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Allocates pages that are suitable for an OperationBusMasterCommonBuffer or

-  OperationBusMasterCommonBuffer64 mapping.

-

-  @param  This                  The PPI instance pointer.

-  @param  MemoryType            The type of memory to allocate, EfiBootServicesData or

-                                EfiRuntimeServicesData.

-  @param  Pages                 The number of pages to allocate.

-  @param  HostAddress           A pointer to store the base system memory address of the

-                                allocated range.

-  @param  Attributes            The requested bit mask of attributes for the allocated range.

-

-  @retval EFI_SUCCESS           The requested memory pages were allocated.

-  @retval EFI_UNSUPPORTED       Attributes is unsupported. The only legal attribute bits are

-                                MEMORY_WRITE_COMBINE and MEMORY_CACHED.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_OUT_OF_RESOURCES  The memory pages could not be allocated.

-

-**/

-EFI_STATUS

-EFIAPI

-PeiIoMmuAllocateBuffer (

-  IN     EDKII_IOMMU_PPI                          *This,

-  IN     EFI_MEMORY_TYPE                          MemoryType,

-  IN     UINTN                                    Pages,

-  IN OUT VOID                                     **HostAddress,

-  IN     UINT64                                   Attributes

-  )

-{

-  UINTN  Length;

-

-  DEBUG ((DEBUG_VERBOSE, "PeiIoMmuAllocateBuffer - page - %x\n", Pages));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentTop - %x\n", mDmaBufferCurrentTop));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentBottom - %x\n", mDmaBufferCurrentBottom));

-

-  Length = EFI_PAGES_TO_SIZE(Pages);

-  if (Length > mDmaBufferCurrentTop - mDmaBufferCurrentBottom) {

-    DEBUG ((DEBUG_ERROR, "PeiIoMmuAllocateBuffer - OUT_OF_RESOURCE\n"));

-    ASSERT (FALSE);

-    return EFI_OUT_OF_RESOURCES;

-  }

-  *HostAddress = (VOID *)(UINTN)(mDmaBufferCurrentTop - Length);

-  mDmaBufferCurrentTop -= Length;

-

-  DEBUG ((DEBUG_VERBOSE, "PeiIoMmuAllocateBuffer - allocate - %x\n", *HostAddress));

-  return EFI_SUCCESS;

-}

-

-/**

-  Frees memory that was allocated with AllocateBuffer().

-

-  @param  This                  The PPI instance pointer.

-  @param  Pages                 The number of pages to free.

-  @param  HostAddress           The base system memory address of the allocated range.

-

-  @retval EFI_SUCCESS           The requested memory pages were freed.

-  @retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and Pages

-                                was not allocated with AllocateBuffer().

-

-**/

-EFI_STATUS

-EFIAPI

-PeiIoMmuFreeBuffer (

-  IN  EDKII_IOMMU_PPI                          *This,

-  IN  UINTN                                    Pages,

-  IN  VOID                                     *HostAddress

-  )

-{

-  UINTN  Length;

-

-  DEBUG ((DEBUG_VERBOSE, "PeiIoMmuFreeBuffer - page - %x, HostAddr - %x\n", Pages, HostAddress));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentTop - %x\n", mDmaBufferCurrentTop));

-  DEBUG ((DEBUG_VERBOSE, "  mDmaBufferCurrentBottom - %x\n", mDmaBufferCurrentBottom));

-

-  Length = EFI_PAGES_TO_SIZE(Pages);

-  if ((UINTN)HostAddress == mDmaBufferCurrentTop) {

-    mDmaBufferCurrentTop += Length;

-  }

-

-  return EFI_SUCCESS;

-}

-

-EDKII_IOMMU_PPI mIoMmuPpi = {

-  EDKII_IOMMU_PPI_REVISION,

-  PeiIoMmuSetAttribute,

-  PeiIoMmuMap,

-  PeiIoMmuUnmap,

-  PeiIoMmuAllocateBuffer,

-  PeiIoMmuFreeBuffer,

-};

-

-CONST EFI_PEI_PPI_DESCRIPTOR mIoMmuPpiList = {

-  EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,

-  &gEdkiiIoMmuPpiGuid,

-  (VOID *) &mIoMmuPpi

-};

-

-#define MEMORY_ATTRIBUTE_MASK (EFI_RESOURCE_ATTRIBUTE_PRESENT | \

-                               EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \

-                               EFI_RESOURCE_ATTRIBUTE_TESTED | \

-                               EFI_RESOURCE_ATTRIBUTE_16_BIT_IO | \

-                               EFI_RESOURCE_ATTRIBUTE_32_BIT_IO | \

-                               EFI_RESOURCE_ATTRIBUTE_64_BIT_IO \

-                               )

-

-#define TESTED_MEMORY_ATTRIBUTES      (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_TESTED)

-

-#define INITIALIZED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED)

-

-#define PRESENT_MEMORY_ATTRIBUTES     (EFI_RESOURCE_ATTRIBUTE_PRESENT)

-

-GLOBAL_REMOVE_IF_UNREFERENCED CHAR8 *mResourceTypeShortName[] = {

-  "Mem",

-  "MMIO",

-  "I/O",

-  "FD",

-  "MM Port I/O",

-  "Reserved Mem",

-  "Reserved I/O",

-};

-

-/**

-  Return the short name of resource type.

-

-  @param Type  resource type.

-

-  @return the short name of resource type.

-**/

-CHAR8 *

-ShortNameOfResourceType (

-  IN UINT32 Type

-  )

-{

-  if (Type < sizeof(mResourceTypeShortName) / sizeof(mResourceTypeShortName[0])) {

-    return mResourceTypeShortName[Type];

-  } else {

-    return "Unknown";

-  }

-}

-

-/**

-  Dump resource hob.

-

-  @param HobList  the HOB list.

-**/

-VOID

-DumpResourceHob (

-  IN VOID                        *HobList

-  )

-{

-  EFI_PEI_HOB_POINTERS        Hob;

-  EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;

-

-  DEBUG ((DEBUG_VERBOSE, "Resource Descriptor HOBs\n"));

-  for (Hob.Raw = HobList; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {

-    if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {

-      ResourceHob = Hob.ResourceDescriptor;

-      DEBUG ((DEBUG_VERBOSE,

-        "  BA=%016lx  L=%016lx  Attr=%08x  ",

-        ResourceHob->PhysicalStart,

-        ResourceHob->ResourceLength,

-        ResourceHob->ResourceAttribute

-        ));

-      DEBUG ((DEBUG_VERBOSE, ShortNameOfResourceType(ResourceHob->ResourceType)));

-      switch (ResourceHob->ResourceType) {

-      case EFI_RESOURCE_SYSTEM_MEMORY:

-        if ((ResourceHob->ResourceAttribute & EFI_RESOURCE_ATTRIBUTE_PERSISTENT) != 0) {

-          DEBUG ((DEBUG_VERBOSE, " (Persistent)"));

-        } else if ((ResourceHob->ResourceAttribute & EFI_RESOURCE_ATTRIBUTE_MORE_RELIABLE) != 0) {

-          DEBUG ((DEBUG_VERBOSE, " (MoreReliable)"));

-        } else if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES) {

-          DEBUG ((DEBUG_VERBOSE, " (Tested)"));

-        } else if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == INITIALIZED_MEMORY_ATTRIBUTES) {

-          DEBUG ((DEBUG_VERBOSE, " (Init)"));

-        } else if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == PRESENT_MEMORY_ATTRIBUTES) {

-          DEBUG ((DEBUG_VERBOSE, " (Present)"));

-        } else {

-          DEBUG ((DEBUG_VERBOSE, " (Unknown)"));

-        }

-        break;

-      default:

-        break;

-      }

-      DEBUG ((DEBUG_VERBOSE, "\n"));

-    }

-  }

-}

-

-/**

-  Dump PHIT hob.

-

-  @param HobList  the HOB list.

-**/

-VOID

-DumpPhitHob (

-  IN VOID                        *HobList

-  )

-{

-  EFI_HOB_HANDOFF_INFO_TABLE  *PhitHob;

-

-  PhitHob = HobList;

-  ASSERT(GET_HOB_TYPE(HobList) == EFI_HOB_TYPE_HANDOFF);

-  DEBUG ((DEBUG_VERBOSE, "PHIT HOB\n"));

-  DEBUG ((DEBUG_VERBOSE, "  PhitHob             - 0x%x\n", PhitHob));

-  DEBUG ((DEBUG_VERBOSE, "  BootMode            - 0x%x\n", PhitHob->BootMode));

-  DEBUG ((DEBUG_VERBOSE, "  EfiMemoryTop        - 0x%016lx\n", PhitHob->EfiMemoryTop));

-  DEBUG ((DEBUG_VERBOSE, "  EfiMemoryBottom     - 0x%016lx\n", PhitHob->EfiMemoryBottom));

-  DEBUG ((DEBUG_VERBOSE, "  EfiFreeMemoryTop    - 0x%016lx\n", PhitHob->EfiFreeMemoryTop));

-  DEBUG ((DEBUG_VERBOSE, "  EfiFreeMemoryBottom - 0x%016lx\n", PhitHob->EfiFreeMemoryBottom));

-  DEBUG ((DEBUG_VERBOSE, "  EfiEndOfHobList     - 0x%lx\n", PhitHob->EfiEndOfHobList));

-}

-

-/**

-  Get the highest memory.

-

-  @param HobList  the HOB list.

-

-  @return the highest memory.

-**/

-UINT64

-GetTopMemory (

-  IN VOID                        *HobList

-  )

-{

-  EFI_PEI_HOB_POINTERS        Hob;

-  EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;

-  UINT64                      TopMemory;

-  UINT64                      ResourceTop;

-

-  TopMemory = 0;

-  for (Hob.Raw = HobList; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) {

-    if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {

-      ResourceHob = Hob.ResourceDescriptor;

-      switch (ResourceHob->ResourceType) {

-      case EFI_RESOURCE_SYSTEM_MEMORY:

-        ResourceTop = ResourceHob->PhysicalStart + ResourceHob->ResourceLength;

-        if (TopMemory < ResourceTop) {

-          TopMemory = ResourceTop;

-        }

-        break;

-      default:

-        break;

-      }

-      DEBUG ((DEBUG_VERBOSE, "\n"));

-    }

-  }

-  return TopMemory;

-}

-

-/**

-  Initialize DMA protection.

-

-  @param DmaBufferSize  the DMA buffer size

-  @param DmaBufferBase  the DMA buffer base

-

-  @retval EFI_SUCCESS           the DMA protection is initialized.

-  @retval EFI_OUT_OF_RESOURCES  no enough resource to initialize DMA protection.

-**/

-EFI_STATUS

-InitDmaProtection (

-  IN   UINTN  DmaBufferSize,

-  OUT  UINTN  *DmaBufferBase

-  )

-{

-  EFI_STATUS                  Status;

-  VOID                        *HobList;

-  EFI_HOB_HANDOFF_INFO_TABLE  *PhitHob;

-  UINT32                      LowMemoryAlignment;

-  UINT64                      HighMemoryAlignment;

-  UINTN                       MemoryAlignment;

-  UINTN                       LowBottom;

-  UINTN                       LowTop;

-  UINTN                       HighBottom;

-  UINT64                      HighTop;

-

-  HobList = GetHobList ();

-  DumpPhitHob (HobList);

-  DumpResourceHob (HobList);

-

-  PhitHob = HobList;

-

-  ASSERT (PhitHob->EfiMemoryBottom < PhitHob->EfiMemoryTop);

-

-  LowMemoryAlignment = GetLowMemoryAlignment ();

-  HighMemoryAlignment = GetHighMemoryAlignment ();

-  if (LowMemoryAlignment < HighMemoryAlignment) {

-    MemoryAlignment = (UINTN)HighMemoryAlignment;

-  } else {

-    MemoryAlignment = LowMemoryAlignment;

-  }

-  ASSERT (DmaBufferSize == ALIGN_VALUE(DmaBufferSize, MemoryAlignment));

-  *DmaBufferBase = (UINTN)AllocateAlignedPages (EFI_SIZE_TO_PAGES(DmaBufferSize), MemoryAlignment);

-  if (*DmaBufferBase == 0) {

-    DEBUG ((DEBUG_INFO, " InitDmaProtection : OutOfResource\n"));

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-  LowBottom = 0;

-  LowTop = *DmaBufferBase;

-  HighBottom = *DmaBufferBase + DmaBufferSize;

-  HighTop = GetTopMemory (HobList);

-

-  Status = SetDmaProtectedRange (

-               (UINT32)LowBottom,

-               (UINT32)(LowTop - LowBottom),

-               HighBottom,

-               HighTop - HighBottom

-               );

-

-  if (EFI_ERROR(Status)) {

-    FreePages ((VOID *)*DmaBufferBase, EFI_SIZE_TO_PAGES(DmaBufferSize));

-  }

-

-  return Status;

-}

-

-/**

-  Initializes the Intel VTd PMR PEIM.

-

-  @param  FileHandle  Handle of the file being invoked.

-  @param  PeiServices Describes the list of possible PEI Services.

-

-  @retval EFI_SUCCESS            Usb bot driver is successfully initialized.

-  @retval EFI_OUT_OF_RESOURCES   Can't initialize the driver.

-

-**/

-EFI_STATUS

-EFIAPI

-IntelVTdPmrInitialize (

-  IN EFI_PEI_FILE_HANDLE       FileHandle,

-  IN CONST EFI_PEI_SERVICES    **PeiServices

-  )

-{

-  EFI_STATUS                  Status;

-

-  if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT0) == 0) {

-    return EFI_UNSUPPORTED;

-  }

-

-  Status = PeiServicesLocatePpi (

-             &gEdkiiVTdInfoPpiGuid,

-             0,

-             NULL,

-             (VOID **)&mVTdInfoPpi

-             );

-  ASSERT_EFI_ERROR(Status);

-

-  //

-  // Find a pre-memory in resource hob as DMA buffer

-  // Mark PEI memory to be DMA protected.

-  //

-  Status = InitDmaProtection (mDmaBufferSize, &mDmaBufferBase);

-  if (EFI_ERROR(Status)) {

-    return Status;

-  }

-

-  DEBUG ((DEBUG_INFO, " DmaBufferBase : 0x%x\n", mDmaBufferBase));

-  DEBUG ((DEBUG_INFO, " DmaBufferSize : 0x%x\n", mDmaBufferSize));

-

-  mDmaBufferCurrentTop = mDmaBufferBase + mDmaBufferSize;

-  mDmaBufferCurrentBottom = mDmaBufferBase;

-

-  //

-  // Install PPI.

-  //

-  Status = PeiServicesInstallPpi (&mIoMmuPpiList);

-  ASSERT_EFI_ERROR(Status);

-

-  return Status;

-}

-

diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.h b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.h
deleted file mode 100644
index aa5926a766..0000000000
--- a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/** @file

-  The definition for DMA access Library.

-

-  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.

-

-**/

-

-#ifndef __DMA_ACCESS_LIB_H__

-#define __DMA_ACCESS_LIB_H__

-

-/**

-  Set DMA protected region.

-

-  @param LowMemoryBase      The protected low memory region base.

-  @param LowMemoryLength    The protected low memory region length.

-  @param HighMemoryBase     The protected high memory region base.

-  @param HighMemoryLength   The protected high memory region length.

-

-  @retval EFI_SUCCESS      The DMA protection is set.

-  @retval EFI_UNSUPPORTED  The DMA protection is not set.

-**/

-EFI_STATUS

-SetDmaProtectedRange (

-  IN UINT32        LowMemoryBase,

-  IN UINT32        LowMemoryLength,

-  IN UINT64        HighMemoryBase,

-  IN UINT64        HighMemoryLength

-  );

-

-/**

-  Diable DMA protection.

-

-  @retval DMA protection is disabled.

-**/

-EFI_STATUS

-DisableDmaProtection (

-  VOID

-  );

-

-/**

-  Get protected low memory alignment.

-

-  @return protected low memory alignment.

-**/

-UINT32

-GetLowMemoryAlignment (

-  VOID

-  );

-

-/**

-  Get protected high memory alignment.

-

-  @return protected high memory alignment.

-**/

-UINT64

-GetHighMemoryAlignment (

-  VOID

-  );

-

-#endif

-

diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.inf b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.inf
deleted file mode 100644
index 86cd7d1618..0000000000
--- a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.inf
+++ /dev/null
@@ -1,59 +0,0 @@
-## @file

-# Component INF file for the Intel VTd PMR PEIM.

-#

-# This driver initializes VTd engine based upon EDKII_VTD_INFO_PPI

-# and provide DMA protection in PEI.

-#

-# 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.

-#

-##

-

-[Defines]

-  INF_VERSION     = 0x00010017

-  BASE_NAME       = IntelVTdPmrPei

-  MODULE_UNI_FILE = IntelVTdPmrPei.uni

-  FILE_GUID       = F906769F-4AED-4A0D-8C7C-FF21B9D1051A

-  MODULE_TYPE     = PEIM

-  VERSION_STRING  = 1.0

-  ENTRY_POINT     = IntelVTdPmrInitialize

-

-[Packages]

-  MdePkg/MdePkg.dec

-  MdeModulePkg/MdeModulePkg.dec

-  IntelSiliconPkg/IntelSiliconPkg.dec

-

-[Sources]

-  IntelVTdPmrPei.c

-  IntelVTdPmrPei.h

-  IntelVTdPmr.c

-

-[LibraryClasses]

-  DebugLib

-  BaseMemoryLib

-  BaseLib

-  PeimEntryPoint

-  PeiServicesLib

-  HobLib

-  IoLib

-

-[Ppis]

-  gEdkiiIoMmuPpiGuid            ## PRODUCES

-  gEdkiiVTdInfoPpiGuid          ## CONSUMES

-

-[Pcd]

-  gIntelSiliconPkgTokenSpaceGuid.PcdVTdPolicyPropertyMask   ## CONSUMES

-

-[Depex]

-  gEfiPeiMemoryDiscoveredPpiGuid AND

-  gEdkiiVTdInfoPpiGuid

-

-[UserExtensions.TianoCore."ExtraFiles"]

-  IntelVTdPmrPeiExtra.uni

-

diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.uni b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.uni
deleted file mode 100644
index 11508a4fd4..0000000000
--- a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.uni
+++ /dev/null
@@ -1,20 +0,0 @@
-// /** @file

-// IntelVTdPmrPei Module Localized Abstract and Description Content

-//

-// 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.

-//

-// **/

-

-

-#string STR_MODULE_ABSTRACT             #language en-US "Intel VTd PMR PEI Driver."

-

-#string STR_MODULE_DESCRIPTION          #language en-US "This driver initializes VTd engine based upon EDKII_VTD_INFO_PPI and provide DMA protection to device in PEI."

-

diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni
deleted file mode 100644
index c6b2dec9cd..0000000000
--- a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni
+++ /dev/null
@@ -1,20 +0,0 @@
-// /** @file

-// IntelVTdPmrPei Localized Strings and Content

-//

-// 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.

-//

-// **/

-

-#string STR_PROPERTIES_MODULE_NAME

-#language en-US

-"Intel VTd PMR PEI Driver"

-

-