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>
---
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmr.c | 314 ++++++++++
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c | 615 ++++++++++++++++++++
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h | 68 +++
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf | 59 ++
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.uni | 20 +
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni | 20 +
IntelSiliconPkg/IntelSiliconPkg.dsc | 2 +-
IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmr.c | 314 ----------
IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.c | 615 --------------------
IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.h | 68 ---
IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.inf | 59 --
IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.uni | 20 -
IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni | 20 -
13 files changed, 1097 insertions(+), 1097 deletions(-)
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmr.c b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmr.c
new file mode 100644
index 0000000..ef08e29
--- /dev/null
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmr.c
@@ -0,0 +1,314 @@
+/** @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/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
new file mode 100644
index 0000000..d118b7e
--- /dev/null
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
@@ -0,0 +1,615 @@
+/** @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/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h
new file mode 100644
index 0000000..aa5926a7
--- /dev/null
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h
@@ -0,0 +1,68 @@
+/** @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/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
new file mode 100644
index 0000000..86cd7d1
--- /dev/null
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
@@ -0,0 +1,59 @@
+## @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/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.uni b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.uni
new file mode 100644
index 0000000..11508a4
--- /dev/null
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.uni
@@ -0,0 +1,20 @@
+// /** @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/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni
new file mode 100644
index 0000000..c6b2dec
--- /dev/null
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPeiExtra.uni
@@ -0,0 +1,20 @@
+// /** @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"
+
+
diff --git a/IntelSiliconPkg/IntelSiliconPkg.dsc b/IntelSiliconPkg/IntelSiliconPkg.dsc
index 091aea7..10b6799 100644
--- a/IntelSiliconPkg/IntelSiliconPkg.dsc
+++ b/IntelSiliconPkg/IntelSiliconPkg.dsc
@@ -80,7 +80,7 @@
[Components]
IntelSiliconPkg/Library/DxeSmbiosDataHobLib/DxeSmbiosDataHobLib.inf
IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.inf
- IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmrPei.inf
+ IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
IntelSiliconPkg/Feature/VTd/PlatformVTdSampleDxe/PlatformVTdSampleDxe.inf
IntelSiliconPkg/PlatformVTdInfoSamplePei/PlatformVTdInfoSamplePei.inf
diff --git a/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmr.c b/IntelSiliconPkg/IntelVTdPmrPei/IntelVTdPmr.c
deleted file mode 100644
index ef08e29..0000000
--- 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 d118b7e..0000000
--- 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 aa5926a7..0000000
--- 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 86cd7d1..0000000
--- 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 11508a4..0000000
--- 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 c6b2dec..0000000
--- 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"
-
-
--
2.7.4.windows.1
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