diff options
Diffstat (limited to 'IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c')
| -rw-r--r-- | IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c | 847 |
1 files changed, 274 insertions, 573 deletions
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c index 3fe6d65..240a6d2 100644 --- a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c @@ -24,6 +24,7 @@ #include <IndustryStandard/Vtd.h>
#include <Ppi/IoMmu.h>
#include <Ppi/VtdInfo.h>
+#include <Ppi/MemoryDiscovered.h>
#include <Ppi/EndOfPeiPhase.h>
#include "IntelVTdPmrPei.h"
@@ -31,13 +32,20 @@ #define TOTAL_DMA_BUFFER_SIZE SIZE_4MB
#define TOTAL_DMA_BUFFER_SIZE_S3 SIZE_1MB
-EFI_ACPI_DMAR_HEADER *mAcpiDmarTable;
-VTD_INFO *mVTdInfo;
-UINT64 mEngineMask;
-UINTN mDmaBufferBase;
-UINTN mDmaBufferSize;
-UINTN mDmaBufferCurrentTop;
-UINTN mDmaBufferCurrentBottom;
+EFI_GUID mVTdInfoGuid = {
+ 0x222f5e30, 0x5cd, 0x49c6, { 0x8a, 0xc, 0x36, 0xd6, 0x58, 0x41, 0xe0, 0x82 }
+};
+
+EFI_GUID mDmaBufferInfoGuid = {
+ 0x7b624ec7, 0xfb67, 0x4f9c, { 0xb6, 0xb0, 0x4d, 0xfa, 0x9c, 0x88, 0x20, 0x39 }
+};
+
+typedef struct {
+ UINTN DmaBufferBase;
+ UINTN DmaBufferSize;
+ UINTN DmaBufferCurrentTop;
+ UINTN DmaBufferCurrentBottom;
+} DMA_BUFFER_INFO;
#define MAP_INFO_SIGNATURE SIGNATURE_32 ('D', 'M', 'A', 'P')
typedef struct {
@@ -83,7 +91,6 @@ typedef struct { +------------------+ <=============== PLMR.Base (0)
**/
-
/**
Set IOMMU attribute for a system memory.
@@ -149,8 +156,13 @@ PeiIoMmuMap ( OUT VOID **Mapping
)
{
- MAP_INFO *MapInfo;
- UINTN Length;
+ MAP_INFO *MapInfo;
+ UINTN Length;
+ VOID *Hob;
+ DMA_BUFFER_INFO *DmaBufferInfo;
+
+ Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);
+ DmaBufferInfo = GET_GUID_HOB_DATA(Hob);
if (Operation == EdkiiIoMmuOperationBusMasterCommonBuffer ||
Operation == EdkiiIoMmuOperationBusMasterCommonBuffer64) {
@@ -160,18 +172,18 @@ PeiIoMmuMap ( }
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));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));
Length = *NumberOfBytes + sizeof(MAP_INFO);
- if (Length > mDmaBufferCurrentTop - mDmaBufferCurrentBottom) {
+ if (Length > DmaBufferInfo->DmaBufferCurrentTop - DmaBufferInfo->DmaBufferCurrentBottom) {
DEBUG ((DEBUG_ERROR, "PeiIoMmuMap - OUT_OF_RESOURCE\n"));
ASSERT (FALSE);
return EFI_OUT_OF_RESOURCES;
}
- *DeviceAddress = mDmaBufferCurrentBottom;
- mDmaBufferCurrentBottom += Length;
+ *DeviceAddress = DmaBufferInfo->DmaBufferCurrentBottom;
+ DmaBufferInfo->DmaBufferCurrentBottom += Length;
MapInfo = (VOID *)(UINTN)(*DeviceAddress + *NumberOfBytes);
MapInfo->Signature = MAP_INFO_SIGNATURE;
@@ -216,16 +228,21 @@ PeiIoMmuUnmap ( IN VOID *Mapping
)
{
- MAP_INFO *MapInfo;
- UINTN Length;
+ MAP_INFO *MapInfo;
+ UINTN Length;
+ VOID *Hob;
+ DMA_BUFFER_INFO *DmaBufferInfo;
+
+ Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);
+ DmaBufferInfo = GET_GUID_HOB_DATA(Hob);
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));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));
MapInfo = Mapping;
ASSERT (MapInfo->Signature == MAP_INFO_SIGNATURE);
@@ -246,8 +263,8 @@ PeiIoMmuUnmap ( }
Length = MapInfo->NumberOfBytes + sizeof(MAP_INFO);
- if (mDmaBufferCurrentBottom == MapInfo->DeviceAddress + Length) {
- mDmaBufferCurrentBottom -= Length;
+ if (DmaBufferInfo->DmaBufferCurrentBottom == MapInfo->DeviceAddress + Length) {
+ DmaBufferInfo->DmaBufferCurrentBottom -= Length;
}
return EFI_SUCCESS;
@@ -282,20 +299,25 @@ PeiIoMmuAllocateBuffer ( IN UINT64 Attributes
)
{
- UINTN Length;
+ UINTN Length;
+ VOID *Hob;
+ DMA_BUFFER_INFO *DmaBufferInfo;
+
+ Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);
+ DmaBufferInfo = GET_GUID_HOB_DATA(Hob);
DEBUG ((DEBUG_VERBOSE, "PeiIoMmuAllocateBuffer - page - %x\n", Pages));
- DEBUG ((DEBUG_VERBOSE, " mDmaBufferCurrentTop - %x\n", mDmaBufferCurrentTop));
- DEBUG ((DEBUG_VERBOSE, " mDmaBufferCurrentBottom - %x\n", mDmaBufferCurrentBottom));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));
Length = EFI_PAGES_TO_SIZE(Pages);
- if (Length > mDmaBufferCurrentTop - mDmaBufferCurrentBottom) {
+ if (Length > DmaBufferInfo->DmaBufferCurrentTop - DmaBufferInfo->DmaBufferCurrentBottom) {
DEBUG ((DEBUG_ERROR, "PeiIoMmuAllocateBuffer - OUT_OF_RESOURCE\n"));
ASSERT (FALSE);
return EFI_OUT_OF_RESOURCES;
}
- *HostAddress = (VOID *)(UINTN)(mDmaBufferCurrentTop - Length);
- mDmaBufferCurrentTop -= Length;
+ *HostAddress = (VOID *)(UINTN)(DmaBufferInfo->DmaBufferCurrentTop - Length);
+ DmaBufferInfo->DmaBufferCurrentTop -= Length;
DEBUG ((DEBUG_VERBOSE, "PeiIoMmuAllocateBuffer - allocate - %x\n", *HostAddress));
return EFI_SUCCESS;
@@ -321,15 +343,20 @@ PeiIoMmuFreeBuffer ( IN VOID *HostAddress
)
{
- UINTN Length;
+ UINTN Length;
+ VOID *Hob;
+ DMA_BUFFER_INFO *DmaBufferInfo;
+
+ Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);
+ DmaBufferInfo = GET_GUID_HOB_DATA(Hob);
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));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentTop - %x\n", DmaBufferInfo->DmaBufferCurrentTop));
+ DEBUG ((DEBUG_VERBOSE, " DmaBufferCurrentBottom - %x\n", DmaBufferInfo->DmaBufferCurrentBottom));
Length = EFI_PAGES_TO_SIZE(Pages);
- if ((UINTN)HostAddress == mDmaBufferCurrentTop) {
- mDmaBufferCurrentTop += Length;
+ if ((UINTN)HostAddress == DmaBufferInfo->DmaBufferCurrentTop) {
+ DmaBufferInfo->DmaBufferCurrentTop += Length;
}
return EFI_SUCCESS;
@@ -506,6 +533,7 @@ GetTopMemory ( /**
Initialize DMA protection.
+ @param VTdInfo The VTd engine context information.
@param DmaBufferSize the DMA buffer size
@param DmaBufferBase the DMA buffer base
@@ -514,8 +542,9 @@ GetTopMemory ( **/
EFI_STATUS
InitDmaProtection (
- IN UINTN DmaBufferSize,
- OUT UINTN *DmaBufferBase
+ IN VTD_INFO *VTdInfo,
+ IN UINTN DmaBufferSize,
+ OUT UINTN *DmaBufferBase
)
{
EFI_STATUS Status;
@@ -537,8 +566,8 @@ InitDmaProtection ( ASSERT (PhitHob->EfiMemoryBottom < PhitHob->EfiMemoryTop);
- LowMemoryAlignment = GetLowMemoryAlignment (mEngineMask);
- HighMemoryAlignment = GetHighMemoryAlignment (mEngineMask);
+ LowMemoryAlignment = GetLowMemoryAlignment (VTdInfo, VTdInfo->EngineMask);
+ HighMemoryAlignment = GetHighMemoryAlignment (VTdInfo, VTdInfo->EngineMask);
if (LowMemoryAlignment < HighMemoryAlignment) {
MemoryAlignment = (UINTN)HighMemoryAlignment;
} else {
@@ -558,12 +587,13 @@ InitDmaProtection ( HighTop = GetTopMemory ();
Status = SetDmaProtectedRange (
- mEngineMask,
- (UINT32)LowBottom,
- (UINT32)(LowTop - LowBottom),
- HighBottom,
- HighTop - HighBottom
- );
+ VTdInfo,
+ VTdInfo->EngineMask,
+ (UINT32)LowBottom,
+ (UINT32)(LowTop - LowBottom),
+ HighBottom,
+ HighTop - HighBottom
+ );
if (EFI_ERROR(Status)) {
FreePages ((VOID *)*DmaBufferBase, EFI_SIZE_TO_PAGES(DmaBufferSize));
@@ -573,542 +603,191 @@ InitDmaProtection ( }
/**
- Dump DMAR DeviceScopeEntry.
+ Initializes the Intel VTd Info.
+
+ @retval EFI_SUCCESS Usb bot driver is successfully initialized.
+ @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.
- @param[in] DmarDeviceScopeEntry DMAR DeviceScopeEntry
**/
-VOID
-DumpDmarDeviceScopeEntry (
- IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry
+EFI_STATUS
+InitVTdInfo (
+ VOID
)
{
- UINTN PciPathNumber;
- UINTN PciPathIndex;
- EFI_ACPI_DMAR_PCI_PATH *PciPath;
-
- if (DmarDeviceScopeEntry == NULL) {
- return;
- }
-
- DEBUG ((DEBUG_INFO,
- " *************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- " * DMA-Remapping Device Scope Entry Structure *\n"
- ));
- DEBUG ((DEBUG_INFO,
- " *************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- (sizeof(UINTN) == sizeof(UINT64)) ?
- " DMAR Device Scope Entry address ...................... 0x%016lx\n" :
- " DMAR Device Scope Entry address ...................... 0x%08x\n",
- DmarDeviceScopeEntry
- ));
- DEBUG ((DEBUG_INFO,
- " Device Scope Entry Type ............................ 0x%02x\n",
- DmarDeviceScopeEntry->Type
- ));
- switch (DmarDeviceScopeEntry->Type) {
- case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT:
- DEBUG ((DEBUG_INFO,
- " PCI Endpoint Device\n"
- ));
- break;
- case EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE:
- DEBUG ((DEBUG_INFO,
- " PCI Sub-hierachy\n"
- ));
- break;
- default:
- break;
- }
- DEBUG ((DEBUG_INFO,
- " Length ............................................. 0x%02x\n",
- DmarDeviceScopeEntry->Length
- ));
- DEBUG ((DEBUG_INFO,
- " Enumeration ID ..................................... 0x%02x\n",
- DmarDeviceScopeEntry->EnumerationId
- ));
- DEBUG ((DEBUG_INFO,
- " Starting Bus Number ................................ 0x%02x\n",
- DmarDeviceScopeEntry->StartBusNumber
- ));
-
- PciPathNumber = (DmarDeviceScopeEntry->Length - sizeof(EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER)) / sizeof(EFI_ACPI_DMAR_PCI_PATH);
- PciPath = (EFI_ACPI_DMAR_PCI_PATH *)(DmarDeviceScopeEntry + 1);
- for (PciPathIndex = 0; PciPathIndex < PciPathNumber; PciPathIndex++) {
- DEBUG ((DEBUG_INFO,
- " Device ............................................. 0x%02x\n",
- PciPath[PciPathIndex].Device
- ));
- DEBUG ((DEBUG_INFO,
- " Function ........................................... 0x%02x\n",
- PciPath[PciPathIndex].Function
- ));
- }
-
- DEBUG ((DEBUG_INFO,
- " *************************************************************************\n\n"
- ));
-
- return;
-}
+ EFI_STATUS Status;
+ EFI_ACPI_DMAR_HEADER *AcpiDmarTable;
+ VOID *Hob;
-/**
- Dump DMAR RMRR table.
+ Status = PeiServicesLocatePpi (
+ &gEdkiiVTdInfoPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&AcpiDmarTable
+ );
+ ASSERT_EFI_ERROR(Status);
- @param[in] Rmrr DMAR RMRR table
-**/
-VOID
-DumpDmarRmrr (
- IN EFI_ACPI_DMAR_RMRR_HEADER *Rmrr
- )
-{
- EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;
- INTN RmrrLen;
+ DumpAcpiDMAR (AcpiDmarTable);
- if (Rmrr == NULL) {
- return;
+ //
+ // Clear old VTdInfo Hob.
+ //
+ Hob = GetFirstGuidHob (&mVTdInfoGuid);
+ if (Hob != NULL) {
+ ZeroMem (&((EFI_HOB_GUID_TYPE *)Hob)->Name, sizeof(EFI_GUID));
}
- DEBUG ((DEBUG_INFO,
- " ***************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- " * Reserved Memory Region Reporting Structure *\n"
- ));
- DEBUG ((DEBUG_INFO,
- " ***************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- (sizeof(UINTN) == sizeof(UINT64)) ?
- " RMRR address ........................................... 0x%016lx\n" :
- " RMRR address ........................................... 0x%08x\n",
- Rmrr
- ));
- DEBUG ((DEBUG_INFO,
- " Type ................................................. 0x%04x\n",
- Rmrr->Header.Type
- ));
- DEBUG ((DEBUG_INFO,
- " Length ............................................... 0x%04x\n",
- Rmrr->Header.Length
- ));
- DEBUG ((DEBUG_INFO,
- " Segment Number ....................................... 0x%04x\n",
- Rmrr->SegmentNumber
- ));
- DEBUG ((DEBUG_INFO,
- " Reserved Memory Region Base Address .................. 0x%016lx\n",
- Rmrr->ReservedMemoryRegionBaseAddress
- ));
- DEBUG ((DEBUG_INFO,
- " Reserved Memory Region Limit Address ................. 0x%016lx\n",
- Rmrr->ReservedMemoryRegionLimitAddress
- ));
-
- RmrrLen = Rmrr->Header.Length - sizeof(EFI_ACPI_DMAR_RMRR_HEADER);
- DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Rmrr + 1);
- while (RmrrLen > 0) {
- DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);
- RmrrLen -= DmarDeviceScopeEntry->Length;
- DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);
+ //
+ // Get DMAR information to local VTdInfo
+ //
+ Status = ParseDmarAcpiTableDrhd (AcpiDmarTable);
+ if (EFI_ERROR(Status)) {
+ return Status;
}
- DEBUG ((DEBUG_INFO,
- " ***************************************************************************\n\n"
- ));
+ //
+ // NOTE: Do not parse RMRR here, because RMRR may cause PMR programming.
+ //
- return;
+ return EFI_SUCCESS;
}
/**
- Dump DMAR DRHD table.
+ Initializes the Intel VTd PMR for all memory.
+
+ @retval EFI_SUCCESS Usb bot driver is successfully initialized.
+ @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.
- @param[in] Drhd DMAR DRHD table
**/
-VOID
-DumpDmarDrhd (
- IN EFI_ACPI_DMAR_DRHD_HEADER *Drhd
+EFI_STATUS
+InitVTdPmrForAll (
+ VOID
)
{
- EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDeviceScopeEntry;
- INTN DrhdLen;
+ EFI_STATUS Status;
+ VOID *Hob;
+ VTD_INFO *VTdInfo;
+ UINTN LowBottom;
+ UINTN LowTop;
+ UINTN HighBottom;
+ UINT64 HighTop;
- if (Drhd == NULL) {
- return;
- }
+ Hob = GetFirstGuidHob (&mVTdInfoGuid);
+ VTdInfo = GET_GUID_HOB_DATA(Hob);
- DEBUG ((DEBUG_INFO,
- " ***************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- " * DMA-Remapping Hardware Definition Structure *\n"
- ));
- DEBUG ((DEBUG_INFO,
- " ***************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- (sizeof(UINTN) == sizeof(UINT64)) ?
- " DRHD address ........................................... 0x%016lx\n" :
- " DRHD address ........................................... 0x%08x\n",
- Drhd
- ));
- DEBUG ((DEBUG_INFO,
- " Type ................................................. 0x%04x\n",
- Drhd->Header.Type
- ));
- DEBUG ((DEBUG_INFO,
- " Length ............................................... 0x%04x\n",
- Drhd->Header.Length
- ));
- DEBUG ((DEBUG_INFO,
- " Flags ................................................ 0x%02x\n",
- Drhd->Flags
- ));
- DEBUG ((DEBUG_INFO,
- " INCLUDE_PCI_ALL .................................... 0x%02x\n",
- Drhd->Flags & EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL
- ));
- DEBUG ((DEBUG_INFO,
- " Segment Number ....................................... 0x%04x\n",
- Drhd->SegmentNumber
- ));
- DEBUG ((DEBUG_INFO,
- " Register Base Address ................................ 0x%016lx\n",
- Drhd->RegisterBaseAddress
- ));
-
- DrhdLen = Drhd->Header.Length - sizeof(EFI_ACPI_DMAR_DRHD_HEADER);
- DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)(Drhd + 1);
- while (DrhdLen > 0) {
- DumpDmarDeviceScopeEntry (DmarDeviceScopeEntry);
- DrhdLen -= DmarDeviceScopeEntry->Length;
- DmarDeviceScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDeviceScopeEntry + DmarDeviceScopeEntry->Length);
- }
+ LowBottom = 0;
+ LowTop = 0;
+ HighBottom = 0;
+ HighTop = LShiftU64 (1, VTdInfo->HostAddressWidth);
- DEBUG ((DEBUG_INFO,
- " ***************************************************************************\n\n"
- ));
+ Status = SetDmaProtectedRange (
+ VTdInfo,
+ VTdInfo->EngineMask,
+ (UINT32)LowBottom,
+ (UINT32)(LowTop - LowBottom),
+ HighBottom,
+ HighTop - HighBottom
+ );
- return;
+ return Status;
}
/**
- Dump DMAR ACPI table.
+ Initializes the Intel VTd PMR for DMA buffer.
+
+ @retval EFI_SUCCESS Usb bot driver is successfully initialized.
+ @retval EFI_OUT_OF_RESOURCES Can't initialize the driver.
- @param[in] Dmar DMAR ACPI table
**/
-VOID
-DumpAcpiDMAR (
- IN EFI_ACPI_DMAR_HEADER *Dmar
+EFI_STATUS
+InitVTdPmrForDma (
+ VOID
)
{
- EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
- INTN DmarLen;
+ EFI_STATUS Status;
+ VOID *Hob;
+ VTD_INFO *VTdInfo;
+ DMA_BUFFER_INFO *DmaBufferInfo;
- if (Dmar == NULL) {
- return;
- }
+ Hob = GetFirstGuidHob (&mVTdInfoGuid);
+ VTdInfo = GET_GUID_HOB_DATA(Hob);
//
- // Dump Dmar table
+ // If there is RMRR memory, parse it here.
//
- DEBUG ((DEBUG_INFO,
- "*****************************************************************************\n"
- ));
- DEBUG ((DEBUG_INFO,
- "* DMAR Table *\n"
- ));
- DEBUG ((DEBUG_INFO,
- "*****************************************************************************\n"
- ));
-
- DEBUG ((DEBUG_INFO,
- (sizeof(UINTN) == sizeof(UINT64)) ?
- "DMAR address ............................................. 0x%016lx\n" :
- "DMAR address ............................................. 0x%08x\n",
- Dmar
- ));
-
- DEBUG ((DEBUG_INFO,
- " Table Contents:\n"
- ));
- DEBUG ((DEBUG_INFO,
- " Host Address Width ................................... 0x%02x\n",
- Dmar->HostAddressWidth
- ));
- DEBUG ((DEBUG_INFO,
- " Flags ................................................ 0x%02x\n",
- Dmar->Flags
- ));
- DEBUG ((DEBUG_INFO,
- " INTR_REMAP ......................................... 0x%02x\n",
- Dmar->Flags & EFI_ACPI_DMAR_FLAGS_INTR_REMAP
- ));
- DEBUG ((DEBUG_INFO,
- " X2APIC_OPT_OUT_SET ................................. 0x%02x\n",
- Dmar->Flags & EFI_ACPI_DMAR_FLAGS_X2APIC_OPT_OUT
- ));
-
- DmarLen = Dmar->Header.Length - sizeof(EFI_ACPI_DMAR_HEADER);
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)(Dmar + 1);
- while (DmarLen > 0) {
- switch (DmarHeader->Type) {
- case EFI_ACPI_DMAR_TYPE_DRHD:
- DumpDmarDrhd ((EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader);
- break;
- case EFI_ACPI_DMAR_TYPE_RMRR:
- DumpDmarRmrr ((EFI_ACPI_DMAR_RMRR_HEADER *)DmarHeader);
- break;
- default:
- break;
- }
- DmarLen -= DmarHeader->Length;
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
- }
-
- DEBUG ((DEBUG_INFO,
- "*****************************************************************************\n\n"
- ));
-
- return;
-}
+ ParseDmarAcpiTableRmrr (VTdInfo);
-/**
- Get VTd engine number.
+ Hob = GetFirstGuidHob (&mDmaBufferInfoGuid);
+ DmaBufferInfo = GET_GUID_HOB_DATA(Hob);
- @return the VTd engine number.
-**/
-UINTN
-GetVtdEngineNumber (
- VOID
- )
-{
- EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
- UINTN VtdIndex;
-
- VtdIndex = 0;
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
- while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
- switch (DmarHeader->Type) {
- case EFI_ACPI_DMAR_TYPE_DRHD:
- VtdIndex++;
- break;
- default:
- break;
- }
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
+ DEBUG ((DEBUG_INFO, " DmaBufferSize : 0x%x\n", DmaBufferInfo->DmaBufferSize));
+ //
+ // Find a pre-memory in resource hob as DMA buffer
+ // Mark PEI memory to be DMA protected.
+ //
+ Status = InitDmaProtection (VTdInfo, DmaBufferInfo->DmaBufferSize, &DmaBufferInfo->DmaBufferBase);
+ if (EFI_ERROR(Status)) {
+ return Status;
}
- return VtdIndex ;
-}
-
-/**
- Process DMAR DHRD table.
-
- @param[in] VtdIndex The index of VTd engine.
- @param[in] DmarDrhd The DRHD table.
-**/
-VOID
-ProcessDhrd (
- IN UINTN VtdIndex,
- IN EFI_ACPI_DMAR_DRHD_HEADER *DmarDrhd
- )
-{
- DEBUG ((DEBUG_INFO," VTD (%d) BaseAddress - 0x%016lx\n", VtdIndex, DmarDrhd->RegisterBaseAddress));
- mVTdInfo->VTdEngineAddress[VtdIndex] = DmarDrhd->RegisterBaseAddress;
-}
-/**
- Parse DMAR DRHD table.
-
- @return EFI_SUCCESS The DMAR DRHD table is parsed.
-**/
-EFI_STATUS
-ParseDmarAcpiTableDrhd (
- VOID
- )
-{
- EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
- UINTN VtdUnitNumber;
- UINTN VtdIndex;
+ DEBUG ((DEBUG_INFO, " DmaBufferBase : 0x%x\n", DmaBufferInfo->DmaBufferBase));
- VtdUnitNumber = GetVtdEngineNumber ();
- if (VtdUnitNumber == 0) {
- return EFI_UNSUPPORTED;
- }
-
- mVTdInfo = AllocateZeroPool (sizeof(VTD_INFO) + (VtdUnitNumber - 1) * sizeof(UINT64));
- if (mVTdInfo == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- mVTdInfo->HostAddressWidth = mAcpiDmarTable->HostAddressWidth;
- mVTdInfo->VTdEngineCount = VtdUnitNumber;
-
- VtdIndex = 0;
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
- while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
- switch (DmarHeader->Type) {
- case EFI_ACPI_DMAR_TYPE_DRHD:
- ASSERT (VtdIndex < VtdUnitNumber);
- ProcessDhrd (VtdIndex, (EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader);
- VtdIndex++;
-
- break;
-
- default:
- break;
- }
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
- }
- ASSERT (VtdIndex == VtdUnitNumber);
+ DmaBufferInfo->DmaBufferCurrentTop = DmaBufferInfo->DmaBufferBase + DmaBufferInfo->DmaBufferSize;
+ DmaBufferInfo->DmaBufferCurrentBottom = DmaBufferInfo->DmaBufferBase;
//
- // Initialize the engine mask to all.
+ // Install PPI.
//
- mEngineMask = LShiftU64 (1, VtdUnitNumber) - 1;
+ Status = PeiServicesInstallPpi (&mIoMmuPpiList);
+ ASSERT_EFI_ERROR(Status);
- return EFI_SUCCESS;
+ return Status;
}
/**
- Return the VTd engine index according to the Segment and DevScopeEntry.
+ This function handles S3 resume task at the end of PEI
- @param Segment The segment of the VTd engine
- @param DevScopeEntry The DevScopeEntry of the VTd engine
+ @param[in] PeiServices Pointer to PEI Services Table.
+ @param[in] NotifyDesc Pointer to the descriptor for the Notification event that
+ caused this function to execute.
+ @param[in] Ppi Pointer to the PPI data associated with this function.
- @return The VTd engine index according to the Segment and DevScopeEntry.
- @retval -1 The VTd engine is not found.
+ @retval EFI_STATUS Always return EFI_SUCCESS
**/
-UINTN
-GetVTdEngineFromDevScopeEntry (
- IN UINT16 Segment,
- IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DevScopeEntry
+EFI_STATUS
+EFIAPI
+S3EndOfPeiNotify(
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,
+ IN VOID *Ppi
)
{
- EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
- UINTN VtdIndex;
- EFI_ACPI_DMAR_DRHD_HEADER *DmarDrhd;
- EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *ThisDevScopeEntry;
-
- VtdIndex = 0;
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
- while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
- switch (DmarHeader->Type) {
- case EFI_ACPI_DMAR_TYPE_DRHD:
- DmarDrhd = (EFI_ACPI_DMAR_DRHD_HEADER *)DmarHeader;
- if (DmarDrhd->SegmentNumber != Segment) {
- // Mismatch
- break;
- }
- if ((DmarDrhd->Header.Length == sizeof(EFI_ACPI_DMAR_DRHD_HEADER)) ||
- ((DmarDrhd->Flags & EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL) != 0)) {
- // No DevScopeEntry
- // Do not handle PCI_ALL
- break;
- }
- ThisDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)(DmarDrhd + 1));
- while ((UINTN)ThisDevScopeEntry < (UINTN)DmarDrhd + DmarDrhd->Header.Length) {
- if ((ThisDevScopeEntry->Length == DevScopeEntry->Length) &&
- (CompareMem (ThisDevScopeEntry, DevScopeEntry, DevScopeEntry->Length) == 0)) {
- return VtdIndex;
- }
- ThisDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)ThisDevScopeEntry + ThisDevScopeEntry->Length);
- }
- break;
- default:
- break;
- }
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
- }
- return (UINTN)-1;
-}
-
-/**
- Process DMAR RMRR table.
+ VOID *Hob;
+ VTD_INFO *VTdInfo;
+ UINT64 EngineMask;
- @param[in] DmarRmrr The RMRR table.
-**/
-VOID
-ProcessRmrr (
- IN EFI_ACPI_DMAR_RMRR_HEADER *DmarRmrr
- )
-{
- EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDevScopeEntry;
- UINTN VTdIndex;
- UINT64 RmrrMask;
- UINTN LowBottom;
- UINTN LowTop;
- UINTN HighBottom;
- UINT64 HighTop;
-
- DEBUG ((DEBUG_INFO," RMRR (Base 0x%016lx, Limit 0x%016lx)\n", DmarRmrr->ReservedMemoryRegionBaseAddress, DmarRmrr->ReservedMemoryRegionLimitAddress));
-
- if ((DmarRmrr->ReservedMemoryRegionBaseAddress == 0) ||
- (DmarRmrr->ReservedMemoryRegionLimitAddress == 0)) {
- return ;
- }
+ DEBUG((DEBUG_INFO, "VTdPmr S3EndOfPeiNotify\n"));
- DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)(DmarRmrr + 1));
- while ((UINTN)DmarDevScopeEntry < (UINTN)DmarRmrr + DmarRmrr->Header.Length) {
- ASSERT (DmarDevScopeEntry->Type == EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT);
-
- VTdIndex = GetVTdEngineFromDevScopeEntry (DmarRmrr->SegmentNumber, DmarDevScopeEntry);
- if (VTdIndex != (UINTN)-1) {
- RmrrMask = LShiftU64 (1, VTdIndex);
-
- LowBottom = 0;
- LowTop = (UINTN)DmarRmrr->ReservedMemoryRegionBaseAddress;
- HighBottom = (UINTN)DmarRmrr->ReservedMemoryRegionLimitAddress + 1;
- HighTop = GetTopMemory ();
-
- SetDmaProtectedRange (
- RmrrMask,
- 0,
- (UINT32)(LowTop - LowBottom),
- HighBottom,
- HighTop - HighBottom
- );
-
- //
- // Remove the engine from the engine mask.
- // The assumption is that any other PEI driver does not access
- // the device covered by this engine.
- //
- mEngineMask = mEngineMask & (~RmrrMask);
+ if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT1) == 0) {
+ Hob = GetFirstGuidHob (&mVTdInfoGuid);
+ if (Hob == NULL) {
+ return EFI_SUCCESS;
}
+ VTdInfo = GET_GUID_HOB_DATA(Hob);
- DmarDevScopeEntry = (EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *)((UINTN)DmarDevScopeEntry + DmarDevScopeEntry->Length);
+ EngineMask = LShiftU64 (1, VTdInfo->VTdEngineCount) - 1;
+ DisableDmaProtection (VTdInfo, EngineMask);
}
+ return EFI_SUCCESS;
}
-/**
- Parse DMAR DRHD table.
-**/
-VOID
-ParseDmarAcpiTableRmrr (
- VOID
- )
-{
- EFI_ACPI_DMAR_STRUCTURE_HEADER *DmarHeader;
-
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)(mAcpiDmarTable + 1));
- while ((UINTN)DmarHeader < (UINTN)mAcpiDmarTable + mAcpiDmarTable->Header.Length) {
- switch (DmarHeader->Type) {
- case EFI_ACPI_DMAR_TYPE_RMRR:
- ProcessRmrr ((EFI_ACPI_DMAR_RMRR_HEADER *)DmarHeader);
- break;
- default:
- break;
- }
- DmarHeader = (EFI_ACPI_DMAR_STRUCTURE_HEADER *)((UINTN)DmarHeader + DmarHeader->Length);
- }
-}
+EFI_PEI_NOTIFY_DESCRIPTOR mS3EndOfPeiNotifyDesc = {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiEndOfPeiSignalPpiGuid,
+ S3EndOfPeiNotify
+};
/**
- This function handles S3 resume task at the end of PEI
+ This function handles VTd engine setup
@param[in] PeiServices Pointer to PEI Services Table.
@param[in] NotifyDesc Pointer to the descriptor for the Notification event that
@@ -1119,27 +798,80 @@ ParseDmarAcpiTableRmrr ( **/
EFI_STATUS
EFIAPI
-S3EndOfPeiNotify(
+VTdInfoNotify (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,
IN VOID *Ppi
)
{
- UINT64 EngineMask;
+ EFI_STATUS Status;
+ VOID *MemoryDiscovered;
+ UINT64 EnabledEngineMask;
+ VOID *Hob;
+ VTD_INFO *VTdInfo;
+ BOOLEAN MemoryInitialized;
- DEBUG((DEBUG_INFO, "VTdPmr S3EndOfPeiNotify\n"));
+ DEBUG ((DEBUG_INFO, "VTdInfoNotify\n"));
+
+ //
+ // Check if memory is initialized.
+ //
+ MemoryInitialized = FALSE;
+ Status = PeiServicesLocatePpi (
+ &gEfiPeiMemoryDiscoveredPpiGuid,
+ 0,
+ NULL,
+ &MemoryDiscovered
+ );
+ if (!EFI_ERROR(Status)) {
+ MemoryInitialized = TRUE;
+ }
+
+ DEBUG ((DEBUG_INFO, "MemoryInitialized - %x\n", MemoryInitialized));
+
+ if (!MemoryInitialized) {
+ //
+ // If the memory is not initialized,
+ // Protect all system memory
+ //
+ InitVTdInfo ();
+ InitVTdPmrForAll ();
+ } else {
+ //
+ // If the memory is initialized,
+ // Allocate DMA buffer and protect rest system memory
+ //
+
+ //
+ // NOTE: We need reinit VTdInfo because previous information might be overriden.
+ //
+ InitVTdInfo ();
+
+ Hob = GetFirstGuidHob (&mVTdInfoGuid);
+ VTdInfo = GET_GUID_HOB_DATA(Hob);
+
+ //
+ // NOTE: We need check if PMR is enabled or not.
+ //
+ EnabledEngineMask = GetDmaProtectionEnabledEngineMask (VTdInfo, VTdInfo->EngineMask);
+ if (EnabledEngineMask != 0) {
+ EnableVTdTranslationProtection (VTdInfo, EnabledEngineMask);
+ DisableDmaProtection (VTdInfo, EnabledEngineMask);
+ }
+ InitVTdPmrForDma ();
+ if (EnabledEngineMask != 0) {
+ DisableVTdTranslationProtection (VTdInfo, EnabledEngineMask);
+ }
- if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT1) == 0) {
- EngineMask = LShiftU64 (1, mVTdInfo->VTdEngineCount) - 1;
- DisableDmaProtection (EngineMask);
}
+
return EFI_SUCCESS;
}
-EFI_PEI_NOTIFY_DESCRIPTOR mS3EndOfPeiNotifyDesc = {
+EFI_PEI_NOTIFY_DESCRIPTOR mVTdInfoNotifyDesc = {
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
- &gEfiEndOfPeiSignalPpiGuid,
- S3EndOfPeiNotify
+ &gEdkiiVTdInfoPpiGuid,
+ VTdInfoNotify
};
/**
@@ -1161,71 +893,40 @@ IntelVTdPmrInitialize ( {
EFI_STATUS Status;
EFI_BOOT_MODE BootMode;
+ DMA_BUFFER_INFO *DmaBufferInfo;
+
+ DEBUG ((DEBUG_INFO, "IntelVTdPmrInitialize\n"));
if ((PcdGet8(PcdVTdPolicyPropertyMask) & BIT0) == 0) {
return EFI_UNSUPPORTED;
}
- PeiServicesGetBootMode (&BootMode);
-
- Status = PeiServicesLocatePpi (
- &gEdkiiVTdInfoPpiGuid,
- 0,
- NULL,
- (VOID **)&mAcpiDmarTable
- );
- ASSERT_EFI_ERROR(Status);
-
- DumpAcpiDMAR (mAcpiDmarTable);
-
- //
- // Get DMAR information to local VTdInfo
- //
- Status = ParseDmarAcpiTableDrhd ();
- if (EFI_ERROR(Status)) {
- return Status;
+ DmaBufferInfo = BuildGuidHob (&mDmaBufferInfoGuid, sizeof(DMA_BUFFER_INFO));
+ ASSERT(DmaBufferInfo != NULL);
+ if (DmaBufferInfo == NULL) {
+ return EFI_OUT_OF_RESOURCES;
}
+ ZeroMem (DmaBufferInfo, sizeof(DMA_BUFFER_INFO));
- //
- // If there is RMRR memory, parse it here.
- //
- ParseDmarAcpiTableRmrr ();
+ PeiServicesGetBootMode (&BootMode);
if (BootMode == BOOT_ON_S3_RESUME) {
- mDmaBufferSize = TOTAL_DMA_BUFFER_SIZE_S3;
+ DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE_S3;
} else {
- mDmaBufferSize = TOTAL_DMA_BUFFER_SIZE;
- }
- DEBUG ((DEBUG_INFO, " DmaBufferSize : 0x%x\n", mDmaBufferSize));
-
- //
- // 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;
+ DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE;
}
- DEBUG ((DEBUG_INFO, " DmaBufferBase : 0x%x\n", mDmaBufferBase));
-
- mDmaBufferCurrentTop = mDmaBufferBase + mDmaBufferSize;
- mDmaBufferCurrentBottom = mDmaBufferBase;
-
- //
- // Install PPI.
- //
- Status = PeiServicesInstallPpi (&mIoMmuPpiList);
- ASSERT_EFI_ERROR(Status);
+ Status = PeiServicesNotifyPpi (&mVTdInfoNotifyDesc);
+ ASSERT_EFI_ERROR (Status);
//
- // Register EndOfPei Notify for S3 to run FSP NotifyPhase
+ // Register EndOfPei Notify for S3
//
if (BootMode == BOOT_ON_S3_RESUME) {
Status = PeiServicesNotifyPpi (&mS3EndOfPeiNotifyDesc);
ASSERT_EFI_ERROR (Status);
}
- return Status;
+ return EFI_SUCCESS;
}
|