diff options
Diffstat (limited to 'EdkModulePkg/Core/Dxe/Gcd/gcd.c')
| -rw-r--r-- | EdkModulePkg/Core/Dxe/Gcd/gcd.c | 2496 |
1 files changed, 0 insertions, 2496 deletions
diff --git a/EdkModulePkg/Core/Dxe/Gcd/gcd.c b/EdkModulePkg/Core/Dxe/Gcd/gcd.c deleted file mode 100644 index 4d58687c69..0000000000 --- a/EdkModulePkg/Core/Dxe/Gcd/gcd.c +++ /dev/null @@ -1,2496 +0,0 @@ -/*++
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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.
-
-Module Name:
-
- gcd.c
-
-Abstract:
- The file contains the GCD related services in the EFI Boot Services Table.
- The GCD services are used to manage the memory and I/O regions that
- are accessible to the CPU that is executing the DXE core.
-
---*/
-
-#include <DxeMain.h>
-
-#define MINIMUM_INITIAL_MEMORY_SIZE 0x10000
-
-#define MEMORY_ATTRIBUTE_MASK (EFI_RESOURCE_ATTRIBUTE_PRESENT | \
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \
- EFI_RESOURCE_ATTRIBUTE_TESTED | \
- EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED | \
- EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED | \
- EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED | \
- 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)
-
-#define INVALID_CPU_ARCH_ATTRIBUTES 0xffffffff
-
-//
-// Module Variables
-//
-EFI_LOCK mGcdMemorySpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);
-EFI_LOCK mGcdIoSpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);
-LIST_ENTRY mGcdMemorySpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdMemorySpaceMap);
-LIST_ENTRY mGcdIoSpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdIoSpaceMap);
-
-EFI_GCD_MAP_ENTRY mGcdMemorySpaceMapEntryTemplate = {
- EFI_GCD_MAP_SIGNATURE,
- { NULL, NULL },
- 0,
- 0,
- 0,
- 0,
- EfiGcdMemoryTypeNonExistent,
- (EFI_GCD_IO_TYPE) 0,
- NULL,
- NULL
-};
-
-EFI_GCD_MAP_ENTRY mGcdIoSpaceMapEntryTemplate = {
- EFI_GCD_MAP_SIGNATURE,
- { NULL, NULL },
- 0,
- 0,
- 0,
- 0,
- (EFI_GCD_MEMORY_TYPE) 0,
- EfiGcdIoTypeNonExistent,
- NULL,
- NULL
-};
-
-GCD_ATTRIBUTE_CONVERSION_ENTRY mAttributeConversionTable[] = {
- { EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE, EFI_MEMORY_UC, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_UNCACHED_EXPORTED, EFI_MEMORY_UCE, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE, EFI_MEMORY_WC, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE, EFI_MEMORY_WT, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE, EFI_MEMORY_WB, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED, EFI_MEMORY_RP, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED, EFI_MEMORY_WP, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED, EFI_MEMORY_XP, TRUE },
- { EFI_RESOURCE_ATTRIBUTE_PRESENT, EFI_MEMORY_PRESENT, FALSE },
- { EFI_RESOURCE_ATTRIBUTE_INITIALIZED, EFI_MEMORY_INITIALIZED, FALSE },
- { EFI_RESOURCE_ATTRIBUTE_TESTED, EFI_MEMORY_TESTED, FALSE },
- { 0, 0, FALSE }
-};
-
-VOID
-CoreAcquireGcdMemoryLock (
- VOID
- )
-/*++
-
-Routine Description:
- Acquire memory lock on mGcdMemorySpaceLock
-
-Arguments:
- None
-
-Returns:
- None
-
---*/
-{
- CoreAcquireLock (&mGcdMemorySpaceLock);
-}
-
-
-VOID
-CoreReleaseGcdMemoryLock (
- VOID
- )
-/*++
-
-Routine Description:
- Release memory lock on mGcdMemorySpaceLock
-
-Arguments:
- None
-
-Returns:
- None
-
---*/
-{
- CoreReleaseLock (&mGcdMemorySpaceLock);
-}
-
-
-STATIC
-VOID
-CoreAcquireGcdIoLock (
- VOID
- )
-/*++
-
-Routine Description:
- Acquire memory lock on mGcdIoSpaceLock
-
-Arguments:
- None
-
-Returns:
- None
-
---*/
-{
- CoreAcquireLock (&mGcdIoSpaceLock);
-}
-
-STATIC
-VOID
-CoreReleaseGcdIoLock (
- VOID
- )
-/*++
-
-Routine Description:
- Release memory lock on mGcdIoSpaceLock
-
-Arguments:
- None
-
-Returns:
- None
-
---*/
-{
- CoreReleaseLock (&mGcdIoSpaceLock);
-}
-
-
-
-//
-// GCD Initialization Worker Functions
-//
-STATIC
-UINT64
-AlignValue (
- IN UINT64 Value,
- IN UINTN Alignment,
- IN BOOLEAN RoundUp
- )
-/*++
-
-Routine Description:
-
- Aligns a value to the specified boundary.
-
-Arguments:
-
- Value - 64 bit value to align
- Alignment - Log base 2 of the boundary to align Value to
- RoundUp - TRUE if Value is to be rounded up to the nearest aligned boundary.
- FALSE is Value is to be rounded down to the nearest aligned boundary.
-
-Returns:
-
- A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.
-
---*/
-{
- UINT64 AlignmentMask;
-
- AlignmentMask = LShiftU64 (1, Alignment) - 1;
- if (RoundUp) {
- Value += AlignmentMask;
- }
- return Value & (~AlignmentMask);
-}
-
-STATIC
-UINT64
-PageAlignAddress (
- IN UINT64 Value
- )
-/*++
-
-Routine Description:
-
- Aligns address to the page boundary.
-
-Arguments:
-
- Value - 64 bit address to align
-
-Returns:
-
- A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.
-
---*/
-{
- return AlignValue (Value, EFI_PAGE_SHIFT, TRUE);
-}
-
-STATIC
-UINT64
-PageAlignLength (
- IN UINT64 Value
- )
-/*++
-
-Routine Description:
-
- Aligns length to the page boundary.
-
-Arguments:
-
- Value - 64 bit length to align
-
-Returns:
-
- A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.
-
---*/
-{
- return AlignValue (Value, EFI_PAGE_SHIFT, FALSE);
-}
-
-//
-// GCD Memory Space Worker Functions
-//
-STATIC
-EFI_STATUS
-CoreAllocateGcdMapEntry (
- IN OUT EFI_GCD_MAP_ENTRY **TopEntry,
- IN OUT EFI_GCD_MAP_ENTRY **BottomEntry
- )
-/*++
-
-Routine Description:
-
- Allocate pool for two entries.
-
-Arguments:
-
- TopEntry - An entry of GCD map
- BottomEntry - An entry of GCD map
-
-Returns:
-
- EFI_OUT_OF_RESOURCES - No enough buffer to be allocated.
- EFI_SUCCESS - Both entries successfully allocated.
-
---*/
-{
- *TopEntry = CoreAllocateZeroBootServicesPool (sizeof (EFI_GCD_MAP_ENTRY));
- if (*TopEntry == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- *BottomEntry = CoreAllocateZeroBootServicesPool (sizeof (EFI_GCD_MAP_ENTRY));
- if (*BottomEntry == NULL) {
- CoreFreePool (*TopEntry);
- return EFI_OUT_OF_RESOURCES;
- }
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-CoreInsertGcdMapEntry (
- IN LIST_ENTRY *Link,
- IN EFI_GCD_MAP_ENTRY *Entry,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN EFI_GCD_MAP_ENTRY *TopEntry,
- IN EFI_GCD_MAP_ENTRY *BottomEntry
- )
-/*++
-
-Routine Description:
-
- Internal function. Inserts a new descriptor into a sorted list
-
-Arguments:
-
- Link - The linked list to insert the range BaseAddress and Length into
-
- Entry - A pointer to the entry that is inserted
-
- BaseAddress - The base address of the new range
-
- Length - The length of the new range in bytes
-
- TopEntry - Top pad entry to insert if needed.
-
- BottomEntry - Bottom pad entry to insert if needed.
-
-Returns:
-
- EFI_SUCCESS - The new range was inserted into the linked list
-
---*/
-{
- ASSERT (Length != 0);
- ASSERT (TopEntry->Signature == 0);
- ASSERT (BottomEntry->Signature == 0);
-
- if (BaseAddress > Entry->BaseAddress) {
- CopyMem (BottomEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));
- Entry->BaseAddress = BaseAddress;
- BottomEntry->EndAddress = BaseAddress - 1;
- InsertTailList (Link, &BottomEntry->Link);
- }
-
- if ((BaseAddress + Length - 1) < Entry->EndAddress) {
- CopyMem (TopEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));
- TopEntry->BaseAddress = BaseAddress + Length;
- Entry->EndAddress = BaseAddress + Length - 1;
- InsertHeadList (Link, &TopEntry->Link);
- }
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-CoreMergeGcdMapEntry (
- IN LIST_ENTRY *Link,
- IN BOOLEAN Forward,
- IN LIST_ENTRY *Map
- )
-/*++
-
-Routine Description:
-
- Merge the Gcd region specified by Link and its adjacent entry
-
-Arguments:
-
- Link - Specify the entry to be merged (with its adjacent entry).
-
- Forward - Direction (forward or backward).
-
- Map - Boundary.
-
-Returns:
-
- EFI_SUCCESS - Successfully returned.
-
- EFI_UNSUPPORTED - These adjacent regions could not merge.
-
---*/
-{
- LIST_ENTRY *AdjacentLink;
- EFI_GCD_MAP_ENTRY *Entry;
- EFI_GCD_MAP_ENTRY *AdjacentEntry;
-
- //
- // Get adjacent entry
- //
- if (Forward) {
- AdjacentLink = Link->ForwardLink;
- } else {
- AdjacentLink = Link->BackLink;
- }
-
- //
- // If AdjacentLink is the head of the list, then no merge can be performed
- //
- if (AdjacentLink == Map) {
- return EFI_SUCCESS;
- }
-
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- AdjacentEntry = CR (AdjacentLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
-
- if (Entry->Capabilities != AdjacentEntry->Capabilities) {
- return EFI_UNSUPPORTED;
- }
- if (Entry->Attributes != AdjacentEntry->Attributes) {
- return EFI_UNSUPPORTED;
- }
- if (Entry->GcdMemoryType != AdjacentEntry->GcdMemoryType) {
- return EFI_UNSUPPORTED;
- }
- if (Entry->GcdIoType != AdjacentEntry->GcdIoType) {
- return EFI_UNSUPPORTED;
- }
- if (Entry->ImageHandle != AdjacentEntry->ImageHandle) {
- return EFI_UNSUPPORTED;
- }
- if (Entry->DeviceHandle != AdjacentEntry->DeviceHandle) {
- return EFI_UNSUPPORTED;
- }
-
- if (Forward) {
- Entry->EndAddress = AdjacentEntry->EndAddress;
- } else {
- Entry->BaseAddress = AdjacentEntry->BaseAddress;
- }
- RemoveEntryList (AdjacentLink);
- CoreFreePool (AdjacentEntry);
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-CoreCleanupGcdMapEntry (
- IN EFI_GCD_MAP_ENTRY *TopEntry,
- IN EFI_GCD_MAP_ENTRY *BottomEntry,
- IN LIST_ENTRY *StartLink,
- IN LIST_ENTRY *EndLink,
- IN LIST_ENTRY *Map
- )
-/*++
-
-Routine Description:
-
- Merge adjacent entries on total chain.
-
-Arguments:
-
- TopEntry - Top entry of GCD map.
-
- BottomEntry - Bottom entry of GCD map.
-
- StartLink - Start link of the list for this loop.
-
- EndLink - End link of the list for this loop.
-
- Map - Boundary.
-
-Returns:
-
- EFI_SUCCESS - GCD map successfully cleaned up.
-
---*/
-{
- LIST_ENTRY *Link;
-
- if (TopEntry->Signature == 0) {
- CoreFreePool (TopEntry);
- }
- if (BottomEntry->Signature == 0) {
- CoreFreePool (BottomEntry);
- }
-
- Link = StartLink;
- while (Link != EndLink->ForwardLink) {
- CoreMergeGcdMapEntry (Link, FALSE, Map);
- Link = Link->ForwardLink;
- }
- CoreMergeGcdMapEntry (EndLink, TRUE, Map);
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-CoreSearchGcdMapEntry (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- OUT LIST_ENTRY **StartLink,
- OUT LIST_ENTRY **EndLink,
- IN LIST_ENTRY *Map
- )
-/*++
-
-Routine Description:
-
- Search a segment of memory space in GCD map. The result is a range of GCD entry list.
-
-Arguments:
-
- BaseAddress - The start address of the segment.
-
- Length - The length of the segment.
-
- StartLink - The first GCD entry involves this segment of memory space.
-
- EndLink - The first GCD entry involves this segment of memory space.
-
- Map - Points to the start entry to search.
-
-Returns:
-
- EFI_SUCCESS - Successfully found the entry.
-
- EFI_NOT_FOUND - Not found.
-
---*/
-{
- LIST_ENTRY *Link;
- EFI_GCD_MAP_ENTRY *Entry;
-
- ASSERT (Length != 0);
-
- *StartLink = NULL;
- *EndLink = NULL;
-
- Link = Map->ForwardLink;
- while (Link != Map) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- if (BaseAddress >= Entry->BaseAddress && BaseAddress <= Entry->EndAddress) {
- *StartLink = Link;
- }
- if (*StartLink != NULL) {
- if ((BaseAddress + Length - 1) >= Entry->BaseAddress &&
- (BaseAddress + Length - 1) <= Entry->EndAddress ) {
- *EndLink = Link;
- return EFI_SUCCESS;
- }
- }
- Link = Link->ForwardLink;
- }
- return EFI_NOT_FOUND;
-}
-
-STATIC
-UINTN
-CoreCountGcdMapEntry (
- IN LIST_ENTRY *Map
- )
-/*++
-
-Routine Description:
-
- Count the amount of GCD map entries.
-
-Arguments:
-
- Map - Points to the start entry to do the count loop.
-
-Returns:
-
- The count.
-
---*/
-{
- UINTN Count;
- LIST_ENTRY *Link;
-
- Count = 0;
- Link = Map->ForwardLink;
- while (Link != Map) {
- Count++;
- Link = Link->ForwardLink;
- }
- return Count;
-}
-
-
-STATIC
-UINT64
-ConverToCpuArchAttributes (
- UINT64 Attributes
- )
-/*++
-
-Routine Description:
-
- Return the memory attribute specified by Attributes
-
-Arguments:
-
- Attributes - A num with some attribute bits on.
-
-Returns:
-
- The enum value of memory attribute.
-
---*/
-{
- if ( (Attributes & EFI_MEMORY_UC) == EFI_MEMORY_UC) {
- return EFI_MEMORY_UC;
- }
-
- if ( (Attributes & EFI_MEMORY_WC ) == EFI_MEMORY_WC) {
- return EFI_MEMORY_WC;
- }
-
- if ( (Attributes & EFI_MEMORY_WT ) == EFI_MEMORY_WT) {
- return EFI_MEMORY_WT;
- }
-
- if ( (Attributes & EFI_MEMORY_WB) == EFI_MEMORY_WB) {
- return EFI_MEMORY_WB;
- }
-
- if ( (Attributes & EFI_MEMORY_WP) == EFI_MEMORY_WP) {
- return EFI_MEMORY_WP;
- }
-
- return INVALID_CPU_ARCH_ATTRIBUTES;
-
-}
-
-STATIC
-EFI_STATUS
-CoreConvertSpace (
- IN UINTN Operation,
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
- IN EFI_GCD_IO_TYPE GcdIoType,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Capabilities,
- IN UINT64 Attributes
- )
-/*++
-
-Routine Description:
-
- Do operation on a segment of memory space specified (add, free, remove, change attribute ...).
-
-Arguments:
-
- Operation - The type of the operation
-
- GcdMemoryType - Additional information for the operation
-
- GcdIoType - Additional information for the operation
-
- BaseAddress - Start address of the segment
-
- Length - length of the segment
-
- Capabilities - The alterable attributes of a newly added entry
-
- Attributes - The attributes needs to be set
-
-Returns:
-
- EFI_INVALID_PARAMETER - Length is 0 or address (length) not aligned when setting attribute.
-
- EFI_SUCCESS - Action successfully done.
-
- EFI_UNSUPPORTED - Could not find the proper descriptor on this segment or
- set an upsupported attribute.
-
- EFI_ACCESS_DENIED - Operate on an space non-exist or is used for an image.
-
- EFI_NOT_FOUND - Free a non-using space or remove a non-exist space, and so on.
-
- EFI_OUT_OF_RESOURCES - No buffer could be allocated.
-
-Returns:
-
---*/
-{
- EFI_STATUS Status;
- LIST_ENTRY *Map;
- LIST_ENTRY *Link;
- EFI_GCD_MAP_ENTRY *Entry;
- EFI_GCD_MAP_ENTRY *TopEntry;
- EFI_GCD_MAP_ENTRY *BottomEntry;
- LIST_ENTRY *StartLink;
- LIST_ENTRY *EndLink;
-
- EFI_CPU_ARCH_PROTOCOL *CpuArch;
- UINT64 CpuArchAttributes;
-
- if (Length == 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- Map = NULL;
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {
- CoreAcquireGcdMemoryLock ();
- Map = &mGcdMemorySpaceMap;
- }
- if (Operation & GCD_IO_SPACE_OPERATION) {
- CoreAcquireGcdIoLock ();
- Map = &mGcdIoSpaceMap;
- }
-
- //
- // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length
- //
- Status = CoreSearchGcdMapEntry (BaseAddress, Length, &StartLink, &EndLink, Map);
- if (EFI_ERROR (Status)) {
- Status = EFI_UNSUPPORTED;
-
- goto Done;
- }
-
- //
- // Verify that the list of descriptors are unallocated non-existent memory.
- //
- Link = StartLink;
- while (Link != EndLink->ForwardLink) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- switch (Operation) {
- //
- // Add operations
- //
- case GCD_ADD_MEMORY_OPERATION:
- if (Entry->GcdMemoryType != EfiGcdMemoryTypeNonExistent ||
- Entry->ImageHandle != NULL ) {
- Status = EFI_ACCESS_DENIED;
- goto Done;
- }
- break;
- case GCD_ADD_IO_OPERATION:
- if (Entry->GcdIoType != EfiGcdIoTypeNonExistent ||
- Entry->ImageHandle != NULL ) {
- Status = EFI_ACCESS_DENIED;
- goto Done;
- }
- break;
- //
- // Free operations
- //
- case GCD_FREE_MEMORY_OPERATION:
- case GCD_FREE_IO_OPERATION:
- if (Entry->ImageHandle == NULL) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- break;
- //
- // Remove operations
- //
- case GCD_REMOVE_MEMORY_OPERATION:
- if (Entry->GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- if (Entry->ImageHandle != NULL) {
- Status = EFI_ACCESS_DENIED;
- goto Done;
- }
- break;
- case GCD_REMOVE_IO_OPERATION:
- if (Entry->GcdIoType == EfiGcdIoTypeNonExistent) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- if (Entry->ImageHandle != NULL) {
- Status = EFI_ACCESS_DENIED;
- goto Done;
- }
- break;
- //
- // Set attribute operations
- //
- case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:
- if (Attributes & EFI_MEMORY_RUNTIME) {
- if ((BaseAddress & EFI_PAGE_MASK) != 0 || (Length & EFI_PAGE_MASK) != 0) {
- Status = EFI_INVALID_PARAMETER;
-
- goto Done;
- }
- }
- if ((Entry->Capabilities & Attributes) != Attributes) {
- Status = EFI_UNSUPPORTED;
- goto Done;
- }
- break;
- }
- Link = Link->ForwardLink;
- }
-
- //
- // Allocate work space to perform this operation
- //
- Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);
- if (EFI_ERROR (Status)) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- //
- //
- //
- if (Operation == GCD_SET_ATTRIBUTES_MEMORY_OPERATION) {
- //
- // Call CPU Arch Protocol to attempt to set attributes on the range
- //
- CpuArchAttributes = ConverToCpuArchAttributes (Attributes);
- if ( CpuArchAttributes != INVALID_CPU_ARCH_ATTRIBUTES ) {
- Status = CoreLocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&CpuArch);
- if (EFI_ERROR (Status)) {
- Status = EFI_ACCESS_DENIED;
- goto Done;
- }
-
- Status = CpuArch->SetMemoryAttributes (
- CpuArch,
- BaseAddress,
- Length,
- CpuArchAttributes
- );
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- }
-
- }
-
- //
- // Convert/Insert the list of descriptors from StartLink to EndLink
- //
- Link = StartLink;
- while (Link != EndLink->ForwardLink) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- CoreInsertGcdMapEntry (Link, Entry, BaseAddress, Length, TopEntry, BottomEntry);
- switch (Operation) {
- //
- // Add operations
- //
- case GCD_ADD_MEMORY_OPERATION:
- Entry->GcdMemoryType = GcdMemoryType;
- if (GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {
- Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME | EFI_MEMORY_PORT_IO;
- } else {
- Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME;
- }
- break;
- case GCD_ADD_IO_OPERATION:
- Entry->GcdIoType = GcdIoType;
- break;
- //
- // Free operations
- //
- case GCD_FREE_MEMORY_OPERATION:
- case GCD_FREE_IO_OPERATION:
- Entry->ImageHandle = NULL;
- Entry->DeviceHandle = NULL;
- break;
- //
- // Remove operations
- //
- case GCD_REMOVE_MEMORY_OPERATION:
- Entry->GcdMemoryType = EfiGcdMemoryTypeNonExistent;
- Entry->Capabilities = 0;
- break;
- case GCD_REMOVE_IO_OPERATION:
- Entry->GcdIoType = EfiGcdIoTypeNonExistent;
- break;
- //
- // Set attribute operations
- //
- case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:
- Entry->Attributes = Attributes;
- break;
- }
- Link = Link->ForwardLink;
- }
-
- //
- // Cleanup
- //
- Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);
-
-Done:
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {
- CoreReleaseGcdMemoryLock ();
- }
- if (Operation & GCD_IO_SPACE_OPERATION) {
- CoreReleaseGcdIoLock ();
- }
-
- return Status;
-}
-
-STATIC
-EFI_STATUS
-CoreAllocateSpaceCheckEntry (
- IN UINTN Operation,
- IN EFI_GCD_MAP_ENTRY *Entry,
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
- IN EFI_GCD_IO_TYPE GcdIoType
- )
-/*++
-
-Routine Description:
-
- Check whether an entry could be used to allocate space.
-
-Arguments:
-
- Operation - Allocate memory or IO
-
- Entry - The entry to be tested
-
- GcdMemoryType - The desired memory type
-
- GcdIoType - The desired IO type
-
-Returns:
-
- EFI_NOT_FOUND - The memory type does not match or there's an image handle on the entry.
-
- EFI_UNSUPPORTED - The operation unsupported.
-
- EFI_SUCCESS - It's ok for this entry to be used to allocate space.
-
---*/
-{
- if (Entry->ImageHandle != NULL) {
- return EFI_NOT_FOUND;
- }
- switch (Operation) {
- case GCD_ALLOCATE_MEMORY_OPERATION:
- if (Entry->GcdMemoryType != GcdMemoryType) {
- return EFI_NOT_FOUND;
- }
- break;
- case GCD_ALLOCATE_IO_OPERATION:
- if (Entry->GcdIoType != GcdIoType) {
- return EFI_NOT_FOUND;
- }
- break;
- default:
- return EFI_UNSUPPORTED;
- }
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-CoreAllocateSpace (
- IN UINTN Operation,
- IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
- IN EFI_GCD_IO_TYPE GcdIoType,
- IN UINTN Alignment,
- IN UINT64 Length,
- IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
- IN EFI_HANDLE ImageHandle,
- IN EFI_HANDLE DeviceHandle OPTIONAL
- )
-/*++
-
-Routine Description:
-
- Allocate space on specified address and length.
-
-Arguments:
-
- Operation - The type of operation (memory or IO)
-
- GcdAllocateType - The type of allocate operation
-
- GcdMemoryType - The desired memory type
-
- GcdIoType - The desired IO type
-
- Alignment - Align with 2^Alignment
-
- Length - Length to allocate
-
- BaseAddress - Base address to allocate
-
- ImageHandle - The image handle consume the allocated space.
-
- DeviceHandle - The device handle consume the allocated space.
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameter.
-
- EFI_NOT_FOUND - No descriptor for the desired space exists.
-
- EFI_SUCCESS - Space successfully allocated.
-
---*/
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS AlignmentMask;
- EFI_PHYSICAL_ADDRESS MaxAddress;
- LIST_ENTRY *Map;
- LIST_ENTRY *Link;
- LIST_ENTRY *SubLink;
- EFI_GCD_MAP_ENTRY *Entry;
- EFI_GCD_MAP_ENTRY *TopEntry;
- EFI_GCD_MAP_ENTRY *BottomEntry;
- LIST_ENTRY *StartLink;
- LIST_ENTRY *EndLink;
- BOOLEAN Found;
-
- //
- // Make sure parameters are valid
- //
- if (GcdAllocateType < 0 || GcdAllocateType >= EfiGcdMaxAllocateType) {
- return EFI_INVALID_PARAMETER;
- }
- if (GcdMemoryType < 0 || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {
- return EFI_INVALID_PARAMETER;
- }
- if (GcdIoType < 0 || GcdIoType >= EfiGcdIoTypeMaximum) {
- return EFI_INVALID_PARAMETER;
- }
- if (BaseAddress == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- if (ImageHandle == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- if (Alignment >= 64) {
- return EFI_NOT_FOUND;
- }
- if (Length == 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- Map = NULL;
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {
- CoreAcquireGcdMemoryLock ();
- Map = &mGcdMemorySpaceMap;
- }
- if (Operation & GCD_IO_SPACE_OPERATION) {
- CoreAcquireGcdIoLock ();
- Map = &mGcdIoSpaceMap;
- }
-
- Found = FALSE;
- StartLink = NULL;
- EndLink = NULL;
- //
- // Compute alignment bit mask
- //
- AlignmentMask = LShiftU64 (1, Alignment) - 1;
-
- if (GcdAllocateType == EfiGcdAllocateAddress) {
- //
- // Verify that the BaseAddress passed in is aligned correctly
- //
- if ((*BaseAddress & AlignmentMask) != 0) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- //
- // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length
- //
- Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);
- if (EFI_ERROR (Status)) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- //
- // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.
- //
- Link = StartLink;
- while (Link != EndLink->ForwardLink) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- Link = Link->ForwardLink;
- Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- }
- Found = TRUE;
- } else {
-
- Entry = CR (Map->BackLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
-
- //
- // Compute the maximum address to use in the search algorithm
- //
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchBottomUp ||
- GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ) {
- MaxAddress = *BaseAddress;
- } else {
- MaxAddress = Entry->EndAddress;
- }
-
- //
- // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.
- //
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||
- GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {
- Link = Map->BackLink;
- } else {
- Link = Map->ForwardLink;
- }
- while (Link != Map) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
-
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||
- GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {
- Link = Link->BackLink;
- } else {
- Link = Link->ForwardLink;
- }
-
- Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);
- if (EFI_ERROR (Status)) {
- continue;
- }
-
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||
- GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {
- if ((Entry->BaseAddress + Length) > MaxAddress) {
- continue;
- }
- if (Length > (Entry->EndAddress + 1)) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- if (Entry->EndAddress > MaxAddress) {
- *BaseAddress = MaxAddress;
- } else {
- *BaseAddress = Entry->EndAddress;
- }
- *BaseAddress = (*BaseAddress + 1 - Length) & (~AlignmentMask);
- } else {
- *BaseAddress = (Entry->BaseAddress + AlignmentMask) & (~AlignmentMask);
- if ((*BaseAddress + Length - 1) > MaxAddress) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
- }
-
- //
- // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length
- //
- Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);
- if (EFI_ERROR (Status)) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Link = StartLink;
- //
- // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.
- //
- Found = TRUE;
- SubLink = StartLink;
- while (SubLink != EndLink->ForwardLink) {
- Entry = CR (SubLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);
- if (EFI_ERROR (Status)) {
- Link = SubLink;
- Found = FALSE;
- break;
- }
- SubLink = SubLink->ForwardLink;
- }
- if (Found) {
- break;
- }
- }
- }
- if (!Found) {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- //
- // Allocate work space to perform this operation
- //
- Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);
- if (EFI_ERROR (Status)) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- //
- // Convert/Insert the list of descriptors from StartLink to EndLink
- //
- Link = StartLink;
- while (Link != EndLink->ForwardLink) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- CoreInsertGcdMapEntry (Link, Entry, *BaseAddress, Length, TopEntry, BottomEntry);
- Entry->ImageHandle = ImageHandle;
- Entry->DeviceHandle = DeviceHandle;
- Link = Link->ForwardLink;
- }
-
- //
- // Cleanup
- //
- Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);
-
-Done:
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {
- CoreReleaseGcdMemoryLock ();
- }
- if (Operation & GCD_IO_SPACE_OPERATION) {
- CoreReleaseGcdIoLock ();
- }
-
- return Status;
-}
-
-STATIC
-EFI_STATUS
-CoreInternalAddMemorySpace (
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Capabilities
- )
-/*++
-
-Routine Description:
-
- Add a segment of memory to GCD map.
-
-Arguments:
-
- GcdMemoryType - Memory type of the segment.
-
- BaseAddress - Base address of the segment.
-
- Length - Length of the segment.
-
- Capabilities - alterable attributes of the segment.
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameters.
-
- EFI_SUCCESS - Successfully add a segment of memory space.
-
---*/
-{
- //
- // Make sure parameters are valid
- //
- if (GcdMemoryType <= EfiGcdMemoryTypeNonExistent || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- return CoreConvertSpace (GCD_ADD_MEMORY_OPERATION, GcdMemoryType, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, Capabilities, 0);
-}
-
-//
-// GCD Core Services
-//
-EFI_STATUS
-CoreAllocateMemorySpace (
- IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
- IN UINTN Alignment,
- IN UINT64 Length,
- IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
- IN EFI_HANDLE ImageHandle,
- IN EFI_HANDLE DeviceHandle OPTIONAL
- )
-/*++
-
-Routine Description:
-
- Allocates nonexistent memory, reserved memory, system memory, or memorymapped
-I/O resources from the global coherency domain of the processor.
-
-Arguments:
-
- GcdAllocateType - The type of allocate operation
-
- GcdMemoryType - The desired memory type
-
- Alignment - Align with 2^Alignment
-
- Length - Length to allocate
-
- BaseAddress - Base address to allocate
-
- ImageHandle - The image handle consume the allocated space.
-
- DeviceHandle - The device handle consume the allocated space.
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameter.
-
- EFI_NOT_FOUND - No descriptor contains the desired space.
-
- EFI_SUCCESS - Memory space successfully allocated.
-
---*/
-{
- return CoreAllocateSpace (
- GCD_ALLOCATE_MEMORY_OPERATION,
- GcdAllocateType,
- GcdMemoryType,
- (EFI_GCD_IO_TYPE) 0,
- Alignment,
- Length,
- BaseAddress,
- ImageHandle,
- DeviceHandle
- );
-}
-
-EFI_STATUS
-CoreAddMemorySpace (
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Capabilities
- )
-/*++
-
-Routine Description:
-
- Adds reserved memory, system memory, or memory-mapped I/O resources to the
-global coherency domain of the processor.
-
-Arguments:
-
- GcdMemoryType - Memory type of the memory space.
-
- BaseAddress - Base address of the memory space.
-
- Length - Length of the memory space.
-
- Capabilities - alterable attributes of the memory space.
-
-Returns:
-
- EFI_SUCCESS - Merged this memory space into GCD map.
-
---*/
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS PageBaseAddress;
- UINT64 PageLength;
-
- Status = CoreInternalAddMemorySpace (GcdMemoryType, BaseAddress, Length, Capabilities);
-
- if (!EFI_ERROR (Status) && GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {
-
- PageBaseAddress = PageAlignLength (BaseAddress);
- PageLength = PageAlignLength (BaseAddress + Length - PageBaseAddress);
-
- Status = CoreAllocateMemorySpace (
- EfiGcdAllocateAddress,
- GcdMemoryType,
- EFI_PAGE_SHIFT,
- PageLength,
- &PageBaseAddress,
- gDxeCoreImageHandle,
- NULL
- );
-
- if (!EFI_ERROR (Status)) {
- CoreAddMemoryDescriptor (
- EfiConventionalMemory,
- PageBaseAddress,
- RShiftU64 (PageLength, EFI_PAGE_SHIFT),
- Capabilities
- );
- } else {
- for (; PageLength != 0; PageLength -= EFI_PAGE_SIZE, PageBaseAddress += EFI_PAGE_SIZE) {
- Status = CoreAllocateMemorySpace (
- EfiGcdAllocateAddress,
- GcdMemoryType,
- EFI_PAGE_SHIFT,
- EFI_PAGE_SIZE,
- &PageBaseAddress,
- gDxeCoreImageHandle,
- NULL
- );
-
- if (!EFI_ERROR (Status)) {
- CoreAddMemoryDescriptor (
- EfiConventionalMemory,
- PageBaseAddress,
- 1,
- Capabilities
- );
- }
- }
- }
- }
- return Status;
-}
-
-EFI_STATUS
-CoreFreeMemorySpace (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- Frees nonexistent memory, reserved memory, system memory, or memory-mapped
-I/O resources from the global coherency domain of the processor.
-
-Arguments:
-
- BaseAddress - Base address of the memory space.
-
- Length - Length of the memory space.
-
-Returns:
-
- EFI_SUCCESS - Space successfully freed.
-
---*/
-{
- return CoreConvertSpace (GCD_FREE_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
-}
-
-EFI_STATUS
-CoreRemoveMemorySpace (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- Removes reserved memory, system memory, or memory-mapped I/O resources from
-the global coherency domain of the processor.
-
-Arguments:
-
- BaseAddress - Base address of the memory space.
-
- Length - Length of the memory space.
-
-Returns:
-
- EFI_SUCCESS - Successfully remove a segment of memory space.
-
---*/
-{
- return CoreConvertSpace (GCD_REMOVE_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
-}
-
-STATIC
-VOID
-BuildMemoryDescriptor (
- IN OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor,
- IN EFI_GCD_MAP_ENTRY *Entry
- )
-/*++
-
-Routine Description:
-
- Build a memory descriptor according to an entry.
-
-Arguments:
-
- Descriptor - The descriptor to be built
-
- Entry - According to this entry
-
-Returns:
-
- None
-
---*/
-{
- Descriptor->BaseAddress = Entry->BaseAddress;
- Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;
- Descriptor->Capabilities = Entry->Capabilities;
- Descriptor->Attributes = Entry->Attributes;
- Descriptor->GcdMemoryType = Entry->GcdMemoryType;
- Descriptor->ImageHandle = Entry->ImageHandle;
- Descriptor->DeviceHandle = Entry->DeviceHandle;
-}
-
-EFI_STATUS
-CoreGetMemorySpaceDescriptor (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor
- )
-/*++
-
-Routine Description:
-
- Retrieves the descriptor for a memory region containing a specified address.
-
-Arguments:
-
- BaseAddress - Specified start address
-
- Descriptor - Specified length
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameter
-
- EFI_SUCCESS - Successfully get memory space descriptor.
-
---*/
-{
- EFI_STATUS Status;
- LIST_ENTRY *StartLink;
- LIST_ENTRY *EndLink;
- EFI_GCD_MAP_ENTRY *Entry;
-
- //
- // Make sure parameters are valid
- //
- if (Descriptor == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- CoreAcquireGcdMemoryLock ();
-
- //
- // Search for the list of descriptors that contain BaseAddress
- //
- Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdMemorySpaceMap);
- if (EFI_ERROR (Status)) {
- Status = EFI_NOT_FOUND;
- } else {
- //
- // Copy the contents of the found descriptor into Descriptor
- //
- Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- BuildMemoryDescriptor (Descriptor, Entry);
- }
-
- CoreReleaseGcdMemoryLock ();
-
- return Status;
-}
-
-EFI_STATUS
-CoreSetMemorySpaceAttributes (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Attributes
- )
-/*++
-
-Routine Description:
-
- Modifies the attributes for a memory region in the global coherency domain of the
-processor.
-
-Arguments:
-
- BaseAddress - Specified start address
-
- Length - Specified length
-
- Attributes - Specified attributes
-
-Returns:
-
- EFI_SUCCESS - Successfully set attribute of a segment of memory space.
-
---*/
-{
- return CoreConvertSpace (GCD_SET_ATTRIBUTES_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, Attributes);
-}
-
-EFI_STATUS
-CoreGetMemorySpaceMap (
- OUT UINTN *NumberOfDescriptors,
- OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap
- )
-/*++
-
-Routine Description:
-
- Returns a map of the memory resources in the global coherency domain of the
-processor.
-
-Arguments:
-
- NumberOfDescriptors - Number of descriptors.
-
- MemorySpaceMap - Descriptor array
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameter
-
- EFI_OUT_OF_RESOURCES - No enough buffer to allocate
-
- EFI_SUCCESS - Successfully get memory space map.
-
---*/
-{
- EFI_STATUS Status;
- LIST_ENTRY *Link;
- EFI_GCD_MAP_ENTRY *Entry;
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor;
-
- //
- // Make sure parameters are valid
- //
- if (NumberOfDescriptors == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- if (MemorySpaceMap == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- CoreAcquireGcdMemoryLock ();
-
- //
- // Count the number of descriptors
- //
- *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdMemorySpaceMap);
-
- //
- // Allocate the MemorySpaceMap
- //
- *MemorySpaceMap = CoreAllocateBootServicesPool (*NumberOfDescriptors * sizeof (EFI_GCD_MEMORY_SPACE_DESCRIPTOR));
- if (*MemorySpaceMap == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- //
- // Fill in the MemorySpaceMap
- //
- Descriptor = *MemorySpaceMap;
- Link = mGcdMemorySpaceMap.ForwardLink;
- while (Link != &mGcdMemorySpaceMap) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- BuildMemoryDescriptor (Descriptor, Entry);
- Descriptor++;
- Link = Link->ForwardLink;
- }
- Status = EFI_SUCCESS;
-
-Done:
- CoreReleaseGcdMemoryLock ();
- return Status;
-}
-
-EFI_STATUS
-CoreAddIoSpace (
- IN EFI_GCD_IO_TYPE GcdIoType,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- Adds reserved I/O or I/O resources to the global coherency domain of the processor.
-
-Arguments:
-
- GcdIoType - IO type of the segment.
-
- BaseAddress - Base address of the segment.
-
- Length - Length of the segment.
-
-Returns:
-
- EFI_SUCCESS - Merged this segment into GCD map.
- EFI_INVALID_PARAMETER - Parameter not valid
-
---*/
-{
- //
- // Make sure parameters are valid
- //
- if (GcdIoType <= EfiGcdIoTypeNonExistent || GcdIoType >= EfiGcdIoTypeMaximum) {
- return EFI_INVALID_PARAMETER;
- }
- return CoreConvertSpace (GCD_ADD_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, GcdIoType, BaseAddress, Length, 0, 0);
-}
-
-EFI_STATUS
-CoreAllocateIoSpace (
- IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,
- IN EFI_GCD_IO_TYPE GcdIoType,
- IN UINTN Alignment,
- IN UINT64 Length,
- IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
- IN EFI_HANDLE ImageHandle,
- IN EFI_HANDLE DeviceHandle OPTIONAL
- )
-/*++
-
-Routine Description:
-
- Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency
-domain of the processor.
-
-Arguments:
-
- GcdAllocateType - The type of allocate operation
-
- GcdIoType - The desired IO type
-
- Alignment - Align with 2^Alignment
-
- Length - Length to allocate
-
- BaseAddress - Base address to allocate
-
- ImageHandle - The image handle consume the allocated space.
-
- DeviceHandle - The device handle consume the allocated space.
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameter.
-
- EFI_NOT_FOUND - No descriptor contains the desired space.
-
- EFI_SUCCESS - IO space successfully allocated.
-
---*/
-{
- return CoreAllocateSpace (
- GCD_ALLOCATE_IO_OPERATION,
- GcdAllocateType,
- (EFI_GCD_MEMORY_TYPE) 0,
- GcdIoType,
- Alignment,
- Length,
- BaseAddress,
- ImageHandle,
- DeviceHandle
- );
-}
-
-EFI_STATUS
-CoreFreeIoSpace (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency
-domain of the processor.
-
-Arguments:
-
- BaseAddress - Base address of the segment.
-
- Length - Length of the segment.
-
-Returns:
-
- EFI_SUCCESS - Space successfully freed.
-
---*/
-{
- return CoreConvertSpace (GCD_FREE_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
-}
-
-EFI_STATUS
-CoreRemoveIoSpace (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- Removes reserved I/O or I/O resources from the global coherency domain of the
-processor.
-
-Arguments:
-
- BaseAddress - Base address of the segment.
-
- Length - Length of the segment.
-
-Returns:
-
- EFI_SUCCESS - Successfully removed a segment of IO space.
-
---*/
-{
- return CoreConvertSpace (GCD_REMOVE_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);
-}
-
-STATIC
-VOID
-BuildIoDescriptor (
- IN EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor,
- IN EFI_GCD_MAP_ENTRY *Entry
- )
-/*++
-
-Routine Description:
-
- Build a IO descriptor according to an entry.
-
-Arguments:
-
- Descriptor - The descriptor to be built
-
- Entry - According to this entry
-
-Returns:
-
- None
-
---*/
-{
- Descriptor->BaseAddress = Entry->BaseAddress;
- Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;
- Descriptor->GcdIoType = Entry->GcdIoType;
- Descriptor->ImageHandle = Entry->ImageHandle;
- Descriptor->DeviceHandle = Entry->DeviceHandle;
-}
-
-EFI_STATUS
-CoreGetIoSpaceDescriptor (
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- OUT EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor
- )
-/*++
-
-Routine Description:
-
- Retrieves the descriptor for an I/O region containing a specified address.
-
-Arguments:
-
- BaseAddress - Specified start address
-
- Descriptor - Specified length
-
-Returns:
-
- EFI_INVALID_PARAMETER - Descriptor is NULL.
-
- EFI_SUCCESS - Successfully get the IO space descriptor.
-
---*/
-{
- EFI_STATUS Status;
- LIST_ENTRY *StartLink;
- LIST_ENTRY *EndLink;
- EFI_GCD_MAP_ENTRY *Entry;
-
- //
- // Make sure parameters are valid
- //
- if (Descriptor == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- CoreAcquireGcdIoLock ();
-
- //
- // Search for the list of descriptors that contain BaseAddress
- //
- Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdIoSpaceMap);
- if (EFI_ERROR (Status)) {
- Status = EFI_NOT_FOUND;
- } else {
- //
- // Copy the contents of the found descriptor into Descriptor
- //
- Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- BuildIoDescriptor (Descriptor, Entry);
- }
-
- CoreReleaseGcdIoLock ();
-
- return Status;
-}
-
-EFI_STATUS
-CoreGetIoSpaceMap (
- OUT UINTN *NumberOfDescriptors,
- OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap
- )
-/*++
-
-Routine Description:
-
- Returns a map of the I/O resources in the global coherency domain of the processor.
-
-Arguments:
-
- NumberOfDescriptors - Number of descriptors.
-
- IoSpaceMap - Descriptor array
-
-Returns:
-
- EFI_INVALID_PARAMETER - Invalid parameter
-
- EFI_OUT_OF_RESOURCES - No enough buffer to allocate
-
- EFI_SUCCESS - Successfully get IO space map.
-
---*/
-{
- EFI_STATUS Status;
- LIST_ENTRY *Link;
- EFI_GCD_MAP_ENTRY *Entry;
- EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor;
-
- //
- // Make sure parameters are valid
- //
- if (NumberOfDescriptors == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- if (IoSpaceMap == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- CoreAcquireGcdIoLock ();
-
- //
- // Count the number of descriptors
- //
- *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdIoSpaceMap);
-
- //
- // Allocate the IoSpaceMap
- //
- *IoSpaceMap = CoreAllocateBootServicesPool (*NumberOfDescriptors * sizeof (EFI_GCD_IO_SPACE_DESCRIPTOR));
- if (*IoSpaceMap == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- //
- // Fill in the IoSpaceMap
- //
- Descriptor = *IoSpaceMap;
- Link = mGcdIoSpaceMap.ForwardLink;
- while (Link != &mGcdIoSpaceMap) {
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- BuildIoDescriptor (Descriptor, Entry);
- Descriptor++;
- Link = Link->ForwardLink;
- }
- Status = EFI_SUCCESS;
-
-Done:
- CoreReleaseGcdIoLock ();
- return Status;
-}
-
-STATIC
-UINT64
-CoreConvertResourceDescriptorHobAttributesToCapabilities (
- EFI_GCD_MEMORY_TYPE GcdMemoryType,
- UINT64 Attributes
- )
-/*++
-
-Routine Description:
-
- Converts a Resource Descriptor HOB attributes mask to an EFI Memory Descriptor
- capabilities mask
-
-Arguments:
-
- GcdMemoryType - Type of resource in the GCD memory map.
- Attributes - The attribute mask in the Resource Descriptor HOB.
-
-Returns:
-
- The capabilities mask for an EFI Memory Descriptor.
-
---*/
-{
- UINT64 Capabilities;
- GCD_ATTRIBUTE_CONVERSION_ENTRY *Conversion;
-
- //
- // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask
- //
- for (Capabilities = 0, Conversion = mAttributeConversionTable; Conversion->Attribute != 0; Conversion++) {
- if (Conversion->Memory || (GcdMemoryType != EfiGcdMemoryTypeSystemMemory)) {
- if (Attributes & Conversion->Attribute) {
- Capabilities |= Conversion->Capability;
- }
- }
- }
-
- return Capabilities;
-}
-
-EFI_STATUS
-CoreInitializeMemoryServices (
- IN VOID **HobStart,
- OUT EFI_PHYSICAL_ADDRESS *MemoryBaseAddress,
- OUT UINT64 *MemoryLength
- )
-/*++
-
-Routine Description:
-
- External function. Initializes the GCD and memory services based on the memory
- descriptor HOBs. This function is responsible for priming the GCD map and the
- memory map, so memory allocations and resource allocations can be made. The first
- part of this function can not depend on any memory services until at least one
- memory descriptor is provided to the memory services. Then the memory services
- can be used to intialize the GCD map.
-
-Arguments:
-
- HobStart - The start address of the HOB.
- MemoryBaseAddress - Start address of memory region found to init DXE core.
- MemoryLength - Length of memory region found to init DXE core.
-
-Returns:
-
- EFI_SUCCESS - Memory services successfully initialized.
-
---*/
-{
- EFI_PEI_HOB_POINTERS Hob;
- EFI_MEMORY_TYPE_INFORMATION *EfiMemoryTypeInformation;
- UINTN DataSize;
- BOOLEAN Found;
- EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;
- EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;
- EFI_HOB_RESOURCE_DESCRIPTOR *PhitResourceHob;
- EFI_PHYSICAL_ADDRESS BaseAddress;
- UINT64 Length;
- UINT64 Attributes;
- UINT64 Capabilities;
- EFI_PHYSICAL_ADDRESS MaxMemoryBaseAddress;
- UINT64 MaxMemoryLength;
- UINT64 MaxMemoryAttributes;
- EFI_PHYSICAL_ADDRESS MaxAddress;
- EFI_PHYSICAL_ADDRESS HighAddress;
- EFI_HOB_RESOURCE_DESCRIPTOR *MaxResourceHob;
- EFI_HOB_GUID_TYPE *GuidHob;
-
- //
- // Point at the first HOB. This must be the PHIT HOB.
- //
- Hob.Raw = *HobStart;
- ASSERT (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_HANDOFF);
-
- //
- // Initialize the spin locks and maps in the memory services.
- // Also fill in the memory services into the EFI Boot Services Table
- //
- CoreInitializePool ();
-
- //
- // Initialize Local Variables
- //
- PhitResourceHob = NULL;
- MaxResourceHob = NULL;
- ResourceHob = NULL;
- BaseAddress = 0;
- Length = 0;
- Attributes = 0;
- MaxMemoryBaseAddress = 0;
- MaxMemoryLength = 0;
- MaxMemoryAttributes = 0;
-
- //
- // Cache the PHIT HOB for later use
- //
- PhitHob = Hob.HandoffInformationTable;
-
- //
- // See if a Memory Type Information HOB is available
- //
- GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);
- if (GuidHob != NULL) {
- EfiMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);
- DataSize = GET_GUID_HOB_DATA_SIZE (GuidHob);
- if (EfiMemoryTypeInformation != NULL && DataSize > 0 && DataSize <= (EfiMaxMemoryType + 1) * sizeof (EFI_MEMORY_TYPE_INFORMATION)) {
- CopyMem (&gMemoryTypeInformation, EfiMemoryTypeInformation, DataSize);
- }
- }
-
- //
- // Find the Resource Descriptor HOB that contains range FreeMemoryBaseAddress..FreeMemoryLength
- //
- Length = 0;
- Found = FALSE;
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
-
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
-
- ResourceHob = Hob.ResourceDescriptor;
-
- if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&
- (ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES ) {
-
- if (PhitHob->EfiFreeMemoryBottom >= ResourceHob->PhysicalStart &&
- PhitHob->EfiFreeMemoryTop <= (ResourceHob->PhysicalStart + ResourceHob->ResourceLength) ) {
-
- //
- // Cache the resource descriptor HOB for the memory region described by the PHIT HOB
- //
- PhitResourceHob = ResourceHob;
- Found = TRUE;
-
- Attributes = PhitResourceHob->ResourceAttribute;
- BaseAddress = PageAlignAddress (PhitHob->EfiMemoryTop);
- Length = PageAlignLength (ResourceHob->PhysicalStart + ResourceHob->ResourceLength - BaseAddress);
- if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {
- BaseAddress = PageAlignAddress (PhitHob->EfiFreeMemoryBottom);
- Length = PageAlignLength (PhitHob->EfiFreeMemoryTop - BaseAddress);
- if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {
- BaseAddress = PageAlignAddress (ResourceHob->PhysicalStart);
- Length = PageAlignLength ((UINT64)((UINTN)*HobStart - BaseAddress));
- }
- }
- break;
- }
- }
- }
- }
-
- //
- // Assert if a resource descriptor HOB for the memory region described by the PHIT was not found
- //
- ASSERT (Found);
-
- //
- // Search all the resource descriptor HOBs from the highest possible addresses down for a memory
- // region that is big enough to initialize the DXE core. Always skip the PHIT Resource HOB.
- // The max address must be within the physically addressible range for the processor.
- //
- MaxMemoryLength = 0;
- MaxAddress = EFI_MAX_ADDRESS;
- do {
- HighAddress = 0;
- Found = FALSE;
- //
- // Search for a tested memory region that is below MaxAddress
- //
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
-
- //
- // See if this is a resource descriptor HOB that does not contain the PHIT.
- //
- if (Hob.ResourceDescriptor != PhitResourceHob && GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
-
- ResourceHob = Hob.ResourceDescriptor;
- //
- // See if this resource descrior HOB describes tested system memory below MaxAddress
- //
- if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&
- (ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES &&
- ResourceHob->PhysicalStart + ResourceHob->ResourceLength <= MaxAddress ) {
-
- //
- // See if this is the highest tested system memory region below MaxAddress
- //
- if (ResourceHob->PhysicalStart > HighAddress) {
-
- MaxResourceHob = ResourceHob;
- HighAddress = MaxResourceHob->PhysicalStart;
- Found = TRUE;
- }
- }
- }
- }
- if (Found) {
- //
- // Compute the size of the tested memory region below MaxAddrees
- //
- MaxMemoryBaseAddress = PageAlignAddress (MaxResourceHob->PhysicalStart);
- MaxMemoryLength = PageAlignLength (MaxResourceHob->PhysicalStart + MaxResourceHob->ResourceLength - MaxMemoryBaseAddress);
- MaxMemoryAttributes = MaxResourceHob->ResourceAttribute;
- }
- MaxAddress = ResourceHob->PhysicalStart;
- } while (Found && MaxMemoryLength < MINIMUM_INITIAL_MEMORY_SIZE);
-
- //
- //
- //
- if ((Length < MINIMUM_INITIAL_MEMORY_SIZE) ||
- (MaxMemoryBaseAddress > BaseAddress && MaxMemoryLength >= MINIMUM_INITIAL_MEMORY_SIZE) ) {
- BaseAddress = MaxMemoryBaseAddress;
- Length = MaxMemoryLength;
- Attributes = MaxMemoryAttributes;
- }
-
- //
- // If no memory regions are found that are big enough to initialize the DXE core, then ASSERT().
- //
- ASSERT (Length >= MINIMUM_INITIAL_MEMORY_SIZE);
-
- //
- // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask
- //
- Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (EfiGcdMemoryTypeSystemMemory, Attributes);
-
- //
- // Declare the very first memory region, so the EFI Memory Services are available.
- //
- CoreAddMemoryDescriptor (
- EfiConventionalMemory,
- BaseAddress,
- RShiftU64 (Length, EFI_PAGE_SHIFT),
- Capabilities
- );
-
- *MemoryBaseAddress = BaseAddress;
- *MemoryLength = Length;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-CoreInitializeGcdServices (
- IN VOID **HobStart,
- IN EFI_PHYSICAL_ADDRESS MemoryBaseAddress,
- IN UINT64 MemoryLength
- )
-/*++
-
-Routine Description:
-
- External function. Initializes the GCD and memory services based on the memory
- descriptor HOBs. This function is responsible for priming the GCD map and the
- memory map, so memory allocations and resource allocations can be made. The first
- part of this function can not depend on any memory services until at least one
- memory descriptor is provided to the memory services. Then the memory services
- can be used to intialize the GCD map.
-
-Arguments:
-
- HobStart - The start address of the HOB
-
- MemoryBaseAddress - Start address of memory region found to init DXE core.
-
- MemoryLength - Length of memory region found to init DXE core.
-
-
-Returns:
-
- EFI_SUCCESS - GCD services successfully initialized.
-
---*/
-{
- EFI_PEI_HOB_POINTERS Hob;
- VOID *NewHobList;
- EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;
- UINT8 SizeOfMemorySpace;
- UINT8 SizeOfIoSpace;
- EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;
- EFI_PHYSICAL_ADDRESS BaseAddress;
- UINT64 Length;
- EFI_STATUS Status;
- EFI_GCD_MAP_ENTRY *Entry;
- EFI_GCD_MEMORY_TYPE GcdMemoryType;
- EFI_GCD_IO_TYPE GcdIoType;
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;
- EFI_HOB_MEMORY_ALLOCATION *MemoryHob;
- EFI_HOB_FIRMWARE_VOLUME *FirmwareVolumeHob;
- UINTN NumberOfDescriptors;
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;
- UINTN Index;
- UINT64 Capabilities;
- EFI_HOB_CPU * CpuHob;
- //
- // Cache the PHIT HOB for later use
- //
- PhitHob = (EFI_HOB_HANDOFF_INFO_TABLE *)(*HobStart);
-
- //
- // Get the number of address lines in the I/O and Memory space for the CPU
- //
- CpuHob = GetFirstHob (EFI_HOB_TYPE_CPU);
- ASSERT (CpuHob != NULL);
- SizeOfMemorySpace = CpuHob->SizeOfMemorySpace;
- SizeOfIoSpace = CpuHob->SizeOfIoSpace;
-
- //
- // Initialize the GCD Memory Space Map
- //
- Entry = CoreAllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdMemorySpaceMapEntryTemplate);
- ASSERT (Entry != NULL);
-
- Entry->EndAddress = LShiftU64 (1, SizeOfMemorySpace) - 1;
-
- InsertHeadList (&mGcdMemorySpaceMap, &Entry->Link);
-
- //
- // Initialize the GCD I/O Space Map
- //
- Entry = CoreAllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdIoSpaceMapEntryTemplate);
- ASSERT (Entry != NULL);
-
- Entry->EndAddress = LShiftU64 (1, SizeOfIoSpace) - 1;
-
- InsertHeadList (&mGcdIoSpaceMap, &Entry->Link);
-
- //
- // Walk the HOB list and add all resource descriptors to the GCD
- //
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
-
- GcdMemoryType = EfiGcdMemoryTypeNonExistent;
- GcdIoType = EfiGcdIoTypeNonExistent;
-
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
-
- ResourceHob = Hob.ResourceDescriptor;
-
- switch (ResourceHob->ResourceType) {
- case EFI_RESOURCE_SYSTEM_MEMORY:
- if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES) {
- GcdMemoryType = EfiGcdMemoryTypeSystemMemory;
- }
- if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == INITIALIZED_MEMORY_ATTRIBUTES) {
- GcdMemoryType = EfiGcdMemoryTypeReserved;
- }
- if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == PRESENT_MEMORY_ATTRIBUTES) {
- GcdMemoryType = EfiGcdMemoryTypeReserved;
- }
- break;
- case EFI_RESOURCE_MEMORY_MAPPED_IO:
- case EFI_RESOURCE_FIRMWARE_DEVICE:
- GcdMemoryType = EfiGcdMemoryTypeMemoryMappedIo;
- break;
- case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:
- case EFI_RESOURCE_MEMORY_RESERVED:
- GcdMemoryType = EfiGcdMemoryTypeReserved;
- break;
- case EFI_RESOURCE_IO:
- GcdIoType = EfiGcdIoTypeIo;
- break;
- case EFI_RESOURCE_IO_RESERVED:
- GcdIoType = EfiGcdIoTypeReserved;
- break;
- }
-
- if (GcdMemoryType != EfiGcdMemoryTypeNonExistent) {
-
- //
- // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask
- //
- Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (
- GcdMemoryType,
- ResourceHob->ResourceAttribute
- );
-
- Status = CoreInternalAddMemorySpace (
- GcdMemoryType,
- ResourceHob->PhysicalStart,
- ResourceHob->ResourceLength,
- Capabilities
- );
- }
-
- if (GcdIoType != EfiGcdIoTypeNonExistent) {
- Status = CoreAddIoSpace (
- GcdIoType,
- ResourceHob->PhysicalStart,
- ResourceHob->ResourceLength
- );
- }
- }
- }
-
- //
- // Allocate first memory region from the GCD by the DXE core
- //
- Status = CoreAllocateMemorySpace (
- EfiGcdAllocateAddress,
- EfiGcdMemoryTypeSystemMemory,
- 0,
- MemoryLength,
- &MemoryBaseAddress,
- gDxeCoreImageHandle,
- NULL
- );
-
- //
- // Walk the HOB list and allocate all memory space that is consumed by memory allocation HOBs,
- // and Firmware Volume HOBs. Also update the EFI Memory Map with the memory allocation HOBs.
- //
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_MEMORY_ALLOCATION) {
- MemoryHob = Hob.MemoryAllocation;
- BaseAddress = MemoryHob->AllocDescriptor.MemoryBaseAddress;
- Status = CoreAllocateMemorySpace (
- EfiGcdAllocateAddress,
- EfiGcdMemoryTypeSystemMemory,
- 0,
- MemoryHob->AllocDescriptor.MemoryLength,
- &BaseAddress,
- gDxeCoreImageHandle,
- NULL
- );
- if (!EFI_ERROR (Status)) {
- Status = CoreGetMemorySpaceDescriptor (MemoryHob->AllocDescriptor.MemoryBaseAddress, &Descriptor);
- if (!EFI_ERROR (Status)) {
- CoreAddMemoryDescriptor (
- MemoryHob->AllocDescriptor.MemoryType,
- MemoryHob->AllocDescriptor.MemoryBaseAddress,
- RShiftU64 (MemoryHob->AllocDescriptor.MemoryLength, EFI_PAGE_SHIFT),
- Descriptor.Capabilities & (~EFI_MEMORY_RUNTIME)
- );
- }
- }
- }
-
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV) {
- FirmwareVolumeHob = Hob.FirmwareVolume;
- BaseAddress = FirmwareVolumeHob->BaseAddress;
- Status = CoreAllocateMemorySpace (
- EfiGcdAllocateAddress,
- EfiGcdMemoryTypeMemoryMappedIo,
- 0,
- FirmwareVolumeHob->Length,
- &BaseAddress,
- gDxeCoreImageHandle,
- NULL
- );
- }
- }
-
- //
- // Relocate HOB List to an allocated pool buffer.
- //
- NewHobList = CoreAllocateCopyPool (
- (UINTN)PhitHob->EfiFreeMemoryBottom - (UINTN)(*HobStart),
- *HobStart
- );
- ASSERT (NewHobList != NULL);
-
- *HobStart = NewHobList;
- gHobList = NewHobList;
-
- //
- // Add and allocate the remaining unallocated system memory to the memory services.
- //
- Status = CoreGetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);
- for (Index = 0; Index < NumberOfDescriptors; Index++) {
- if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {
- if (MemorySpaceMap[Index].ImageHandle == NULL) {
- BaseAddress = PageAlignAddress (MemorySpaceMap[Index].BaseAddress);
- Length = PageAlignLength (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - BaseAddress);
- CoreAddMemoryDescriptor (
- EfiConventionalMemory,
- BaseAddress,
- RShiftU64 (Length, EFI_PAGE_SHIFT),
- MemorySpaceMap[Index].Capabilities & (~EFI_MEMORY_RUNTIME)
- );
- Status = CoreAllocateMemorySpace (
- EfiGcdAllocateAddress,
- EfiGcdMemoryTypeSystemMemory,
- 0,
- Length,
- &BaseAddress,
- gDxeCoreImageHandle,
- NULL
- );
- }
- }
- }
- CoreFreePool (MemorySpaceMap);
-
- return EFI_SUCCESS;
-}
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