+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2006, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
-\r
- gcd.c\r
-\r
-Abstract:\r
- The file contains the GCD related services in the EFI Boot Services Table.\r
- The GCD services are used to manage the memory and I/O regions that \r
- are accessible to the CPU that is executing the DXE core.\r
-\r
---*/\r
-\r
-#include <DxeMain.h>\r
-\r
-#define MINIMUM_INITIAL_MEMORY_SIZE 0x10000\r
-\r
-#define MEMORY_ATTRIBUTE_MASK (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \\r
- EFI_RESOURCE_ATTRIBUTE_TESTED | \\r
- EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED | \\r
- EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED | \\r
- EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED | \\r
- EFI_RESOURCE_ATTRIBUTE_16_BIT_IO | \\r
- EFI_RESOURCE_ATTRIBUTE_32_BIT_IO | \\r
- EFI_RESOURCE_ATTRIBUTE_64_BIT_IO ) \r
-\r
-#define TESTED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \\r
- EFI_RESOURCE_ATTRIBUTE_TESTED )\r
-\r
-#define INITIALIZED_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT | \\r
- EFI_RESOURCE_ATTRIBUTE_INITIALIZED )\r
-\r
-#define PRESENT_MEMORY_ATTRIBUTES (EFI_RESOURCE_ATTRIBUTE_PRESENT)\r
-\r
-#define INVALID_CPU_ARCH_ATTRIBUTES 0xffffffff\r
-\r
-//\r
-// Module Variables\r
-//\r
-EFI_LOCK mGcdMemorySpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);\r
-EFI_LOCK mGcdIoSpaceLock = EFI_INITIALIZE_LOCK_VARIABLE (TPL_NOTIFY);\r
-LIST_ENTRY mGcdMemorySpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdMemorySpaceMap);\r
-LIST_ENTRY mGcdIoSpaceMap = INITIALIZE_LIST_HEAD_VARIABLE (mGcdIoSpaceMap);\r
-\r
-EFI_GCD_MAP_ENTRY mGcdMemorySpaceMapEntryTemplate = {\r
- EFI_GCD_MAP_SIGNATURE,\r
- { NULL, NULL },\r
- 0,\r
- 0,\r
- 0,\r
- 0,\r
- EfiGcdMemoryTypeNonExistent,\r
- (EFI_GCD_IO_TYPE) 0,\r
- NULL,\r
- NULL\r
-};\r
-\r
-EFI_GCD_MAP_ENTRY mGcdIoSpaceMapEntryTemplate = {\r
- EFI_GCD_MAP_SIGNATURE,\r
- { NULL, NULL },\r
- 0,\r
- 0,\r
- 0,\r
- 0,\r
- (EFI_GCD_MEMORY_TYPE) 0,\r
- EfiGcdIoTypeNonExistent,\r
- NULL,\r
- NULL\r
-};\r
-\r
-GCD_ATTRIBUTE_CONVERSION_ENTRY mAttributeConversionTable[] = {\r
- { EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE, EFI_MEMORY_UC, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_UNCACHED_EXPORTED, EFI_MEMORY_UCE, TRUE }, \r
- { EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE, EFI_MEMORY_WC, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE, EFI_MEMORY_WT, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE, EFI_MEMORY_WB, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED, EFI_MEMORY_RP, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED, EFI_MEMORY_WP, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED, EFI_MEMORY_XP, TRUE },\r
- { EFI_RESOURCE_ATTRIBUTE_PRESENT, EFI_MEMORY_PRESENT, FALSE },\r
- { EFI_RESOURCE_ATTRIBUTE_INITIALIZED, EFI_MEMORY_INITIALIZED, FALSE },\r
- { EFI_RESOURCE_ATTRIBUTE_TESTED, EFI_MEMORY_TESTED, FALSE },\r
- { 0, 0, FALSE }\r
-};\r
-\r
-VOID\r
-CoreAcquireGcdMemoryLock (\r
- VOID\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Acquire memory lock on mGcdMemorySpaceLock\r
-\r
-Arguments:\r
- None\r
-\r
-Returns:\r
- None\r
-\r
---*/\r
-{\r
- CoreAcquireLock (&mGcdMemorySpaceLock);\r
-}\r
-\r
-\r
-VOID\r
-CoreReleaseGcdMemoryLock (\r
- VOID\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Release memory lock on mGcdMemorySpaceLock\r
-\r
-Arguments:\r
- None\r
-\r
-Returns:\r
- None\r
-\r
---*/\r
-{\r
- CoreReleaseLock (&mGcdMemorySpaceLock);\r
-}\r
-\r
-\r
-STATIC\r
-VOID\r
-CoreAcquireGcdIoLock (\r
- VOID\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Acquire memory lock on mGcdIoSpaceLock\r
-\r
-Arguments:\r
- None\r
-\r
-Returns:\r
- None\r
-\r
---*/\r
-{\r
- CoreAcquireLock (&mGcdIoSpaceLock);\r
-}\r
-\r
-STATIC\r
-VOID\r
-CoreReleaseGcdIoLock (\r
- VOID\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Release memory lock on mGcdIoSpaceLock\r
-\r
-Arguments:\r
- None\r
-\r
-Returns:\r
- None\r
-\r
---*/\r
-{\r
- CoreReleaseLock (&mGcdIoSpaceLock);\r
-}\r
-\r
-\r
-\r
-//\r
-// GCD Initialization Worker Functions\r
-//\r
-STATIC\r
-UINT64\r
-AlignValue (\r
- IN UINT64 Value,\r
- IN UINTN Alignment,\r
- IN BOOLEAN RoundUp\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Aligns a value to the specified boundary.\r
-\r
-Arguments:\r
-\r
- Value - 64 bit value to align\r
- Alignment - Log base 2 of the boundary to align Value to\r
- RoundUp - TRUE if Value is to be rounded up to the nearest aligned boundary. \r
- FALSE is Value is to be rounded down to the nearest aligned boundary.\r
-\r
-Returns:\r
-\r
- A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.\r
-\r
---*/\r
-{\r
- UINT64 AlignmentMask;\r
-\r
- AlignmentMask = LShiftU64 (1, Alignment) - 1;\r
- if (RoundUp) {\r
- Value += AlignmentMask;\r
- }\r
- return Value & (~AlignmentMask);\r
-}\r
-\r
-STATIC\r
-UINT64\r
-PageAlignAddress (\r
- IN UINT64 Value\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Aligns address to the page boundary.\r
-\r
-Arguments:\r
-\r
- Value - 64 bit address to align\r
-\r
-Returns:\r
-\r
- A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.\r
-\r
---*/\r
-{\r
- return AlignValue (Value, EFI_PAGE_SHIFT, TRUE);\r
-}\r
-\r
-STATIC\r
-UINT64\r
-PageAlignLength (\r
- IN UINT64 Value\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Aligns length to the page boundary.\r
-\r
-Arguments:\r
-\r
- Value - 64 bit length to align\r
-\r
-Returns:\r
-\r
- A 64 bit value is the aligned to the value nearest Value with an alignment by Alignment.\r
-\r
---*/\r
-{\r
- return AlignValue (Value, EFI_PAGE_SHIFT, FALSE);\r
-}\r
-\r
-//\r
-// GCD Memory Space Worker Functions\r
-//\r
-STATIC\r
-EFI_STATUS\r
-CoreAllocateGcdMapEntry (\r
- IN OUT EFI_GCD_MAP_ENTRY **TopEntry,\r
- IN OUT EFI_GCD_MAP_ENTRY **BottomEntry\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Allocate pool for two entries.\r
-\r
-Arguments:\r
-\r
- TopEntry - An entry of GCD map\r
- BottomEntry - An entry of GCD map\r
-\r
-Returns:\r
-\r
- EFI_OUT_OF_RESOURCES - No enough buffer to be allocated.\r
- EFI_SUCCESS - Both entries successfully allocated.\r
-\r
---*/\r
-{\r
- *TopEntry = CoreAllocateZeroBootServicesPool (sizeof (EFI_GCD_MAP_ENTRY));\r
- if (*TopEntry == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- *BottomEntry = CoreAllocateZeroBootServicesPool (sizeof (EFI_GCD_MAP_ENTRY));\r
- if (*BottomEntry == NULL) {\r
- CoreFreePool (*TopEntry);\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreInsertGcdMapEntry (\r
- IN LIST_ENTRY *Link,\r
- IN EFI_GCD_MAP_ENTRY *Entry,\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN EFI_GCD_MAP_ENTRY *TopEntry,\r
- IN EFI_GCD_MAP_ENTRY *BottomEntry\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Internal function. Inserts a new descriptor into a sorted list\r
-\r
-Arguments:\r
-\r
- Link - The linked list to insert the range BaseAddress and Length into\r
-\r
- Entry - A pointer to the entry that is inserted\r
-\r
- BaseAddress - The base address of the new range\r
- \r
- Length - The length of the new range in bytes\r
- \r
- TopEntry - Top pad entry to insert if needed.\r
-\r
- BottomEntry - Bottom pad entry to insert if needed.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - The new range was inserted into the linked list\r
- \r
---*/\r
-{\r
- ASSERT (Length != 0);\r
- ASSERT (TopEntry->Signature == 0);\r
- ASSERT (BottomEntry->Signature == 0);\r
-\r
- if (BaseAddress > Entry->BaseAddress) {\r
- CopyMem (BottomEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));\r
- Entry->BaseAddress = BaseAddress;\r
- BottomEntry->EndAddress = BaseAddress - 1;\r
- InsertTailList (Link, &BottomEntry->Link);\r
- } \r
-\r
- if ((BaseAddress + Length - 1) < Entry->EndAddress) {\r
- CopyMem (TopEntry, Entry, sizeof (EFI_GCD_MAP_ENTRY));\r
- TopEntry->BaseAddress = BaseAddress + Length;\r
- Entry->EndAddress = BaseAddress + Length - 1;\r
- InsertHeadList (Link, &TopEntry->Link);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreMergeGcdMapEntry (\r
- IN LIST_ENTRY *Link,\r
- IN BOOLEAN Forward,\r
- IN LIST_ENTRY *Map\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Merge the Gcd region specified by Link and its adjacent entry\r
-\r
-Arguments:\r
-\r
- Link - Specify the entry to be merged (with its adjacent entry).\r
- \r
- Forward - Direction (forward or backward).\r
- \r
- Map - Boundary.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Successfully returned.\r
- \r
- EFI_UNSUPPORTED - These adjacent regions could not merge.\r
-\r
---*/\r
-{\r
- LIST_ENTRY *AdjacentLink;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
- EFI_GCD_MAP_ENTRY *AdjacentEntry;\r
-\r
- //\r
- // Get adjacent entry\r
- //\r
- if (Forward) {\r
- AdjacentLink = Link->ForwardLink;\r
- } else {\r
- AdjacentLink = Link->BackLink;\r
- }\r
-\r
- //\r
- // If AdjacentLink is the head of the list, then no merge can be performed\r
- //\r
- if (AdjacentLink == Map) {\r
- return EFI_SUCCESS;\r
- }\r
-\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- AdjacentEntry = CR (AdjacentLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
-\r
- if (Entry->Capabilities != AdjacentEntry->Capabilities) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- if (Entry->Attributes != AdjacentEntry->Attributes) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- if (Entry->GcdMemoryType != AdjacentEntry->GcdMemoryType) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- if (Entry->GcdIoType != AdjacentEntry->GcdIoType) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- if (Entry->ImageHandle != AdjacentEntry->ImageHandle) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- if (Entry->DeviceHandle != AdjacentEntry->DeviceHandle) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- if (Forward) {\r
- Entry->EndAddress = AdjacentEntry->EndAddress;\r
- } else {\r
- Entry->BaseAddress = AdjacentEntry->BaseAddress;\r
- }\r
- RemoveEntryList (AdjacentLink);\r
- CoreFreePool (AdjacentEntry);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreCleanupGcdMapEntry (\r
- IN EFI_GCD_MAP_ENTRY *TopEntry,\r
- IN EFI_GCD_MAP_ENTRY *BottomEntry,\r
- IN LIST_ENTRY *StartLink,\r
- IN LIST_ENTRY *EndLink,\r
- IN LIST_ENTRY *Map\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Merge adjacent entries on total chain.\r
-\r
-Arguments:\r
-\r
- TopEntry - Top entry of GCD map.\r
- \r
- BottomEntry - Bottom entry of GCD map.\r
- \r
- StartLink - Start link of the list for this loop.\r
- \r
- EndLink - End link of the list for this loop.\r
- \r
- Map - Boundary.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - GCD map successfully cleaned up.\r
-\r
---*/\r
-{\r
- LIST_ENTRY *Link;\r
-\r
- if (TopEntry->Signature == 0) {\r
- CoreFreePool (TopEntry);\r
- }\r
- if (BottomEntry->Signature == 0) {\r
- CoreFreePool (BottomEntry);\r
- }\r
-\r
- Link = StartLink;\r
- while (Link != EndLink->ForwardLink) {\r
- CoreMergeGcdMapEntry (Link, FALSE, Map);\r
- Link = Link->ForwardLink;\r
- }\r
- CoreMergeGcdMapEntry (EndLink, TRUE, Map);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreSearchGcdMapEntry (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- OUT LIST_ENTRY **StartLink,\r
- OUT LIST_ENTRY **EndLink,\r
- IN LIST_ENTRY *Map\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Search a segment of memory space in GCD map. The result is a range of GCD entry list.\r
-\r
-Arguments:\r
-\r
- BaseAddress - The start address of the segment.\r
- \r
- Length - The length of the segment.\r
- \r
- StartLink - The first GCD entry involves this segment of memory space.\r
- \r
- EndLink - The first GCD entry involves this segment of memory space.\r
- \r
- Map - Points to the start entry to search.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Successfully found the entry.\r
- \r
- EFI_NOT_FOUND - Not found.\r
-\r
---*/\r
-{\r
- LIST_ENTRY *Link;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
-\r
- ASSERT (Length != 0);\r
-\r
- *StartLink = NULL;\r
- *EndLink = NULL;\r
-\r
- Link = Map->ForwardLink;\r
- while (Link != Map) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- if (BaseAddress >= Entry->BaseAddress && BaseAddress <= Entry->EndAddress) {\r
- *StartLink = Link;\r
- }\r
- if (*StartLink != NULL) {\r
- if ((BaseAddress + Length - 1) >= Entry->BaseAddress && \r
- (BaseAddress + Length - 1) <= Entry->EndAddress ) {\r
- *EndLink = Link;\r
- return EFI_SUCCESS;\r
- }\r
- }\r
- Link = Link->ForwardLink;\r
- }\r
- return EFI_NOT_FOUND;\r
-}\r
-\r
-STATIC\r
-UINTN\r
-CoreCountGcdMapEntry (\r
- IN LIST_ENTRY *Map\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Count the amount of GCD map entries.\r
-\r
-Arguments:\r
-\r
- Map - Points to the start entry to do the count loop.\r
-\r
-Returns:\r
-\r
- The count.\r
-\r
---*/\r
-{\r
- UINTN Count;\r
- LIST_ENTRY *Link;\r
-\r
- Count = 0;\r
- Link = Map->ForwardLink;\r
- while (Link != Map) {\r
- Count++;\r
- Link = Link->ForwardLink;\r
- }\r
- return Count;\r
-}\r
-\r
-\r
-STATIC\r
-UINT64\r
-ConverToCpuArchAttributes (\r
- UINT64 Attributes\r
- ) \r
-/*++\r
-\r
-Routine Description:\r
-\r
- Return the memory attribute specified by Attributes\r
-\r
-Arguments:\r
-\r
- Attributes - A num with some attribute bits on.\r
-\r
-Returns:\r
-\r
- The enum value of memory attribute.\r
-\r
---*/\r
-{\r
- if ( (Attributes & EFI_MEMORY_UC) == EFI_MEMORY_UC) {\r
- return EFI_MEMORY_UC;\r
- }\r
-\r
- if ( (Attributes & EFI_MEMORY_WC ) == EFI_MEMORY_WC) {\r
- return EFI_MEMORY_WC;\r
- }\r
-\r
- if ( (Attributes & EFI_MEMORY_WT ) == EFI_MEMORY_WT) {\r
- return EFI_MEMORY_WT;\r
- }\r
-\r
- if ( (Attributes & EFI_MEMORY_WB) == EFI_MEMORY_WB) {\r
- return EFI_MEMORY_WB;\r
- }\r
-\r
- if ( (Attributes & EFI_MEMORY_WP) == EFI_MEMORY_WP) {\r
- return EFI_MEMORY_WP;\r
- }\r
-\r
- return INVALID_CPU_ARCH_ATTRIBUTES;\r
-\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreConvertSpace (\r
- IN UINTN Operation,\r
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- IN EFI_GCD_IO_TYPE GcdIoType,\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN UINT64 Capabilities,\r
- IN UINT64 Attributes\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Do operation on a segment of memory space specified (add, free, remove, change attribute ...).\r
-\r
-Arguments:\r
-\r
- Operation - The type of the operation\r
- \r
- GcdMemoryType - Additional information for the operation\r
- \r
- GcdIoType - Additional information for the operation\r
- \r
- BaseAddress - Start address of the segment\r
- \r
- Length - length of the segment\r
- \r
- Capabilities - The alterable attributes of a newly added entry\r
- \r
- Attributes - The attributes needs to be set\r
- \r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Length is 0 or address (length) not aligned when setting attribute.\r
- \r
- EFI_SUCCESS - Action successfully done.\r
- \r
- EFI_UNSUPPORTED - Could not find the proper descriptor on this segment or \r
- set an upsupported attribute.\r
- \r
- EFI_ACCESS_DENIED - Operate on an space non-exist or is used for an image.\r
- \r
- EFI_NOT_FOUND - Free a non-using space or remove a non-exist space, and so on.\r
- \r
- EFI_OUT_OF_RESOURCES - No buffer could be allocated.\r
-\r
-Returns:\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- LIST_ENTRY *Map;\r
- LIST_ENTRY *Link;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
- EFI_GCD_MAP_ENTRY *TopEntry;\r
- EFI_GCD_MAP_ENTRY *BottomEntry;\r
- LIST_ENTRY *StartLink;\r
- LIST_ENTRY *EndLink;\r
- \r
- EFI_CPU_ARCH_PROTOCOL *CpuArch;\r
- UINT64 CpuArchAttributes;\r
-\r
- if (Length == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Map = NULL;\r
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r
- CoreAcquireGcdMemoryLock ();\r
- Map = &mGcdMemorySpaceMap;\r
- }\r
- if (Operation & GCD_IO_SPACE_OPERATION) {\r
- CoreAcquireGcdIoLock ();\r
- Map = &mGcdIoSpaceMap;\r
- }\r
-\r
- //\r
- // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length\r
- //\r
- Status = CoreSearchGcdMapEntry (BaseAddress, Length, &StartLink, &EndLink, Map);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_UNSUPPORTED;\r
-\r
- goto Done;\r
- }\r
-\r
- //\r
- // Verify that the list of descriptors are unallocated non-existent memory.\r
- //\r
- Link = StartLink;\r
- while (Link != EndLink->ForwardLink) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- switch (Operation) {\r
- //\r
- // Add operations\r
- //\r
- case GCD_ADD_MEMORY_OPERATION:\r
- if (Entry->GcdMemoryType != EfiGcdMemoryTypeNonExistent ||\r
- Entry->ImageHandle != NULL ) {\r
- Status = EFI_ACCESS_DENIED;\r
- goto Done;\r
- }\r
- break;\r
- case GCD_ADD_IO_OPERATION:\r
- if (Entry->GcdIoType != EfiGcdIoTypeNonExistent ||\r
- Entry->ImageHandle != NULL ) {\r
- Status = EFI_ACCESS_DENIED;\r
- goto Done;\r
- }\r
- break;\r
- //\r
- // Free operations\r
- //\r
- case GCD_FREE_MEMORY_OPERATION:\r
- case GCD_FREE_IO_OPERATION:\r
- if (Entry->ImageHandle == NULL) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
- break;\r
- //\r
- // Remove operations\r
- //\r
- case GCD_REMOVE_MEMORY_OPERATION:\r
- if (Entry->GcdMemoryType == EfiGcdMemoryTypeNonExistent) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
- if (Entry->ImageHandle != NULL) {\r
- Status = EFI_ACCESS_DENIED;\r
- goto Done;\r
- }\r
- break;\r
- case GCD_REMOVE_IO_OPERATION:\r
- if (Entry->GcdIoType == EfiGcdIoTypeNonExistent) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
- if (Entry->ImageHandle != NULL) {\r
- Status = EFI_ACCESS_DENIED;\r
- goto Done;\r
- }\r
- break;\r
- //\r
- // Set attribute operations\r
- //\r
- case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:\r
- if (Attributes & EFI_MEMORY_RUNTIME) {\r
- if ((BaseAddress & EFI_PAGE_MASK) != 0 || (Length & EFI_PAGE_MASK) != 0) {\r
- Status = EFI_INVALID_PARAMETER;\r
-\r
- goto Done;\r
- }\r
- }\r
- if ((Entry->Capabilities & Attributes) != Attributes) {\r
- Status = EFI_UNSUPPORTED;\r
- goto Done;\r
- }\r
- break;\r
- }\r
- Link = Link->ForwardLink;\r
- }\r
-\r
- //\r
- // Allocate work space to perform this operation\r
- //\r
- Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto Done;\r
- }\r
-\r
- //\r
- //\r
- //\r
- if (Operation == GCD_SET_ATTRIBUTES_MEMORY_OPERATION) {\r
- //\r
- // Call CPU Arch Protocol to attempt to set attributes on the range\r
- //\r
- CpuArchAttributes = ConverToCpuArchAttributes (Attributes);\r
- if ( CpuArchAttributes != INVALID_CPU_ARCH_ATTRIBUTES ) {\r
- Status = CoreLocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&CpuArch);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_ACCESS_DENIED;\r
- goto Done;\r
- }\r
-\r
- Status = CpuArch->SetMemoryAttributes (\r
- CpuArch,\r
- BaseAddress,\r
- Length,\r
- CpuArchAttributes\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto Done;\r
- }\r
- }\r
-\r
- }\r
-\r
- //\r
- // Convert/Insert the list of descriptors from StartLink to EndLink\r
- //\r
- Link = StartLink;\r
- while (Link != EndLink->ForwardLink) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- CoreInsertGcdMapEntry (Link, Entry, BaseAddress, Length, TopEntry, BottomEntry);\r
- switch (Operation) {\r
- //\r
- // Add operations\r
- //\r
- case GCD_ADD_MEMORY_OPERATION:\r
- Entry->GcdMemoryType = GcdMemoryType;\r
- if (GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {\r
- Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME | EFI_MEMORY_PORT_IO;\r
- } else {\r
- Entry->Capabilities = Capabilities | EFI_MEMORY_RUNTIME;\r
- }\r
- break;\r
- case GCD_ADD_IO_OPERATION:\r
- Entry->GcdIoType = GcdIoType;\r
- break;\r
- //\r
- // Free operations\r
- //\r
- case GCD_FREE_MEMORY_OPERATION:\r
- case GCD_FREE_IO_OPERATION:\r
- Entry->ImageHandle = NULL;\r
- Entry->DeviceHandle = NULL;\r
- break;\r
- //\r
- // Remove operations\r
- //\r
- case GCD_REMOVE_MEMORY_OPERATION:\r
- Entry->GcdMemoryType = EfiGcdMemoryTypeNonExistent;\r
- Entry->Capabilities = 0;\r
- break;\r
- case GCD_REMOVE_IO_OPERATION:\r
- Entry->GcdIoType = EfiGcdIoTypeNonExistent;\r
- break;\r
- //\r
- // Set attribute operations\r
- //\r
- case GCD_SET_ATTRIBUTES_MEMORY_OPERATION:\r
- Entry->Attributes = Attributes;\r
- break;\r
- }\r
- Link = Link->ForwardLink;\r
- }\r
-\r
- //\r
- // Cleanup\r
- //\r
- Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);\r
-\r
-Done:\r
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r
- CoreReleaseGcdMemoryLock ();\r
- }\r
- if (Operation & GCD_IO_SPACE_OPERATION) {\r
- CoreReleaseGcdIoLock ();\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreAllocateSpaceCheckEntry (\r
- IN UINTN Operation,\r
- IN EFI_GCD_MAP_ENTRY *Entry,\r
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- IN EFI_GCD_IO_TYPE GcdIoType\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Check whether an entry could be used to allocate space.\r
-\r
-Arguments:\r
-\r
- Operation - Allocate memory or IO\r
- \r
- Entry - The entry to be tested\r
- \r
- GcdMemoryType - The desired memory type\r
- \r
- GcdIoType - The desired IO type\r
- \r
-Returns:\r
-\r
- EFI_NOT_FOUND - The memory type does not match or there's an image handle on the entry.\r
- \r
- EFI_UNSUPPORTED - The operation unsupported.\r
- \r
- EFI_SUCCESS - It's ok for this entry to be used to allocate space.\r
-\r
---*/\r
-{\r
- if (Entry->ImageHandle != NULL) {\r
- return EFI_NOT_FOUND;\r
- }\r
- switch (Operation) {\r
- case GCD_ALLOCATE_MEMORY_OPERATION:\r
- if (Entry->GcdMemoryType != GcdMemoryType) {\r
- return EFI_NOT_FOUND;\r
- }\r
- break;\r
- case GCD_ALLOCATE_IO_OPERATION:\r
- if (Entry->GcdIoType != GcdIoType) {\r
- return EFI_NOT_FOUND;\r
- }\r
- break;\r
- default:\r
- return EFI_UNSUPPORTED;\r
- }\r
- return EFI_SUCCESS;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreAllocateSpace (\r
- IN UINTN Operation,\r
- IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,\r
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- IN EFI_GCD_IO_TYPE GcdIoType,\r
- IN UINTN Alignment,\r
- IN UINT64 Length,\r
- IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_HANDLE DeviceHandle OPTIONAL\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Allocate space on specified address and length.\r
-\r
-Arguments:\r
-\r
- Operation - The type of operation (memory or IO)\r
- \r
- GcdAllocateType - The type of allocate operation\r
- \r
- GcdMemoryType - The desired memory type\r
- \r
- GcdIoType - The desired IO type\r
- \r
- Alignment - Align with 2^Alignment\r
- \r
- Length - Length to allocate\r
- \r
- BaseAddress - Base address to allocate\r
- \r
- ImageHandle - The image handle consume the allocated space.\r
- \r
- DeviceHandle - The device handle consume the allocated space.\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter.\r
- \r
- EFI_NOT_FOUND - No descriptor for the desired space exists.\r
- \r
- EFI_SUCCESS - Space successfully allocated.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_PHYSICAL_ADDRESS AlignmentMask;\r
- EFI_PHYSICAL_ADDRESS MaxAddress;\r
- LIST_ENTRY *Map;\r
- LIST_ENTRY *Link;\r
- LIST_ENTRY *SubLink;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
- EFI_GCD_MAP_ENTRY *TopEntry;\r
- EFI_GCD_MAP_ENTRY *BottomEntry;\r
- LIST_ENTRY *StartLink;\r
- LIST_ENTRY *EndLink;\r
- BOOLEAN Found;\r
-\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (GcdAllocateType < 0 || GcdAllocateType >= EfiGcdMaxAllocateType) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (GcdMemoryType < 0 || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (GcdIoType < 0 || GcdIoType >= EfiGcdIoTypeMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (BaseAddress == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (ImageHandle == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (Alignment >= 64) {\r
- return EFI_NOT_FOUND;\r
- }\r
- if (Length == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Map = NULL;\r
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r
- CoreAcquireGcdMemoryLock ();\r
- Map = &mGcdMemorySpaceMap;\r
- }\r
- if (Operation & GCD_IO_SPACE_OPERATION) {\r
- CoreAcquireGcdIoLock ();\r
- Map = &mGcdIoSpaceMap;\r
- }\r
-\r
- Found = FALSE;\r
- StartLink = NULL;\r
- EndLink = NULL;\r
- //\r
- // Compute alignment bit mask\r
- //\r
- AlignmentMask = LShiftU64 (1, Alignment) - 1;\r
-\r
- if (GcdAllocateType == EfiGcdAllocateAddress) {\r
- //\r
- // Verify that the BaseAddress passed in is aligned correctly\r
- //\r
- if ((*BaseAddress & AlignmentMask) != 0) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
-\r
- //\r
- // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length\r
- //\r
- Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
-\r
- //\r
- // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.\r
- //\r
- Link = StartLink;\r
- while (Link != EndLink->ForwardLink) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- Link = Link->ForwardLink;\r
- Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);\r
- if (EFI_ERROR (Status)) {\r
- goto Done;\r
- }\r
- }\r
- Found = TRUE;\r
- } else {\r
-\r
- Entry = CR (Map->BackLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
-\r
- //\r
- // Compute the maximum address to use in the search algorithm\r
- //\r
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchBottomUp ||\r
- GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ) {\r
- MaxAddress = *BaseAddress;\r
- } else {\r
- MaxAddress = Entry->EndAddress;\r
- }\r
-\r
- //\r
- // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.\r
- //\r
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||\r
- GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {\r
- Link = Map->BackLink;\r
- } else {\r
- Link = Map->ForwardLink;\r
- }\r
- while (Link != Map) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
-\r
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||\r
- GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {\r
- Link = Link->BackLink;\r
- } else {\r
- Link = Link->ForwardLink;\r
- }\r
-\r
- Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);\r
- if (EFI_ERROR (Status)) {\r
- continue;\r
- }\r
-\r
- if (GcdAllocateType == EfiGcdAllocateMaxAddressSearchTopDown ||\r
- GcdAllocateType == EfiGcdAllocateAnySearchTopDown ) {\r
- if ((Entry->BaseAddress + Length) > MaxAddress) {\r
- continue;\r
- }\r
- if (Length > (Entry->EndAddress + 1)) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
- if (Entry->EndAddress > MaxAddress) {\r
- *BaseAddress = MaxAddress;\r
- } else {\r
- *BaseAddress = Entry->EndAddress;\r
- }\r
- *BaseAddress = (*BaseAddress + 1 - Length) & (~AlignmentMask);\r
- } else {\r
- *BaseAddress = (Entry->BaseAddress + AlignmentMask) & (~AlignmentMask);\r
- if ((*BaseAddress + Length - 1) > MaxAddress) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
- }\r
-\r
- //\r
- // Search for the list of descriptors that cover the range BaseAddress to BaseAddress+Length\r
- //\r
- Status = CoreSearchGcdMapEntry (*BaseAddress, Length, &StartLink, &EndLink, Map);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
-\r
- Link = StartLink;\r
- //\r
- // Verify that the list of descriptors are unallocated memory matching GcdMemoryType.\r
- //\r
- Found = TRUE;\r
- SubLink = StartLink;\r
- while (SubLink != EndLink->ForwardLink) {\r
- Entry = CR (SubLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- Status = CoreAllocateSpaceCheckEntry (Operation, Entry, GcdMemoryType, GcdIoType);\r
- if (EFI_ERROR (Status)) {\r
- Link = SubLink;\r
- Found = FALSE;\r
- break;\r
- }\r
- SubLink = SubLink->ForwardLink;\r
- }\r
- if (Found) {\r
- break;\r
- }\r
- }\r
- }\r
- if (!Found) {\r
- Status = EFI_NOT_FOUND;\r
- goto Done;\r
- }\r
-\r
- //\r
- // Allocate work space to perform this operation\r
- //\r
- Status = CoreAllocateGcdMapEntry (&TopEntry, &BottomEntry);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto Done;\r
- }\r
-\r
- //\r
- // Convert/Insert the list of descriptors from StartLink to EndLink\r
- //\r
- Link = StartLink;\r
- while (Link != EndLink->ForwardLink) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- CoreInsertGcdMapEntry (Link, Entry, *BaseAddress, Length, TopEntry, BottomEntry);\r
- Entry->ImageHandle = ImageHandle;\r
- Entry->DeviceHandle = DeviceHandle;\r
- Link = Link->ForwardLink;\r
- }\r
-\r
- //\r
- // Cleanup\r
- //\r
- Status = CoreCleanupGcdMapEntry (TopEntry, BottomEntry, StartLink, EndLink, Map);\r
-\r
-Done:\r
- if (Operation & GCD_MEMORY_SPACE_OPERATION) {\r
- CoreReleaseGcdMemoryLock ();\r
- }\r
- if (Operation & GCD_IO_SPACE_OPERATION) {\r
- CoreReleaseGcdIoLock ();\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-STATIC\r
-EFI_STATUS\r
-CoreInternalAddMemorySpace (\r
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN UINT64 Capabilities\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Add a segment of memory to GCD map.\r
-\r
-Arguments:\r
-\r
- GcdMemoryType - Memory type of the segment.\r
- \r
- BaseAddress - Base address of the segment.\r
- \r
- Length - Length of the segment.\r
- \r
- Capabilities - alterable attributes of the segment.\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameters.\r
- \r
- EFI_SUCCESS - Successfully add a segment of memory space.\r
-\r
---*/\r
-{\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (GcdMemoryType <= EfiGcdMemoryTypeNonExistent || GcdMemoryType >= EfiGcdMemoryTypeMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- return CoreConvertSpace (GCD_ADD_MEMORY_OPERATION, GcdMemoryType, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, Capabilities, 0);\r
-}\r
-\r
-//\r
-// GCD Core Services\r
-//\r
-EFI_STATUS\r
-CoreAllocateMemorySpace (\r
- IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,\r
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- IN UINTN Alignment,\r
- IN UINT64 Length,\r
- IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_HANDLE DeviceHandle OPTIONAL\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Allocates nonexistent memory, reserved memory, system memory, or memorymapped\r
-I/O resources from the global coherency domain of the processor.\r
-\r
-Arguments:\r
-\r
- GcdAllocateType - The type of allocate operation\r
- \r
- GcdMemoryType - The desired memory type\r
- \r
- Alignment - Align with 2^Alignment\r
- \r
- Length - Length to allocate\r
- \r
- BaseAddress - Base address to allocate\r
- \r
- ImageHandle - The image handle consume the allocated space.\r
- \r
- DeviceHandle - The device handle consume the allocated space.\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter.\r
- \r
- EFI_NOT_FOUND - No descriptor contains the desired space.\r
- \r
- EFI_SUCCESS - Memory space successfully allocated.\r
-\r
---*/\r
-{\r
- return CoreAllocateSpace (\r
- GCD_ALLOCATE_MEMORY_OPERATION, \r
- GcdAllocateType, \r
- GcdMemoryType, \r
- (EFI_GCD_IO_TYPE) 0, \r
- Alignment, \r
- Length, \r
- BaseAddress, \r
- ImageHandle, \r
- DeviceHandle\r
- );\r
-}\r
-\r
-EFI_STATUS\r
-CoreAddMemorySpace (\r
- IN EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN UINT64 Capabilities\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Adds reserved memory, system memory, or memory-mapped I/O resources to the\r
-global coherency domain of the processor.\r
-\r
-Arguments:\r
-\r
- GcdMemoryType - Memory type of the memory space.\r
- \r
- BaseAddress - Base address of the memory space.\r
- \r
- Length - Length of the memory space.\r
- \r
- Capabilities - alterable attributes of the memory space.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Merged this memory space into GCD map. \r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_PHYSICAL_ADDRESS PageBaseAddress;\r
- UINT64 PageLength;\r
-\r
- Status = CoreInternalAddMemorySpace (GcdMemoryType, BaseAddress, Length, Capabilities);\r
-\r
- if (!EFI_ERROR (Status) && GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {\r
-\r
- PageBaseAddress = PageAlignLength (BaseAddress);\r
- PageLength = PageAlignLength (BaseAddress + Length - PageBaseAddress);\r
-\r
- Status = CoreAllocateMemorySpace (\r
- EfiGcdAllocateAddress,\r
- GcdMemoryType,\r
- EFI_PAGE_SHIFT, \r
- PageLength,\r
- &PageBaseAddress,\r
- gDxeCoreImageHandle,\r
- NULL\r
- );\r
-\r
- if (!EFI_ERROR (Status)) {\r
- CoreAddMemoryDescriptor (\r
- EfiConventionalMemory,\r
- PageBaseAddress,\r
- RShiftU64 (PageLength, EFI_PAGE_SHIFT),\r
- Capabilities\r
- );\r
- } else {\r
- for (; PageLength != 0; PageLength -= EFI_PAGE_SIZE, PageBaseAddress += EFI_PAGE_SIZE) {\r
- Status = CoreAllocateMemorySpace (\r
- EfiGcdAllocateAddress,\r
- GcdMemoryType,\r
- EFI_PAGE_SHIFT, \r
- EFI_PAGE_SIZE,\r
- &PageBaseAddress,\r
- gDxeCoreImageHandle,\r
- NULL\r
- );\r
-\r
- if (!EFI_ERROR (Status)) {\r
- CoreAddMemoryDescriptor (\r
- EfiConventionalMemory,\r
- PageBaseAddress,\r
- 1,\r
- Capabilities\r
- );\r
- }\r
- }\r
- }\r
- }\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-CoreFreeMemorySpace (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Frees nonexistent memory, reserved memory, system memory, or memory-mapped\r
-I/O resources from the global coherency domain of the processor.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Base address of the memory space.\r
- \r
- Length - Length of the memory space.\r
- \r
-Returns:\r
-\r
- EFI_SUCCESS - Space successfully freed.\r
-\r
---*/\r
-{\r
- return CoreConvertSpace (GCD_FREE_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);\r
-}\r
-\r
-EFI_STATUS\r
-CoreRemoveMemorySpace (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Removes reserved memory, system memory, or memory-mapped I/O resources from\r
-the global coherency domain of the processor.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Base address of the memory space.\r
- \r
- Length - Length of the memory space.\r
- \r
-Returns:\r
-\r
- EFI_SUCCESS - Successfully remove a segment of memory space.\r
-\r
---*/\r
-{\r
- return CoreConvertSpace (GCD_REMOVE_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);\r
-}\r
-\r
-STATIC\r
-VOID\r
-BuildMemoryDescriptor (\r
- IN OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor,\r
- IN EFI_GCD_MAP_ENTRY *Entry\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Build a memory descriptor according to an entry.\r
-\r
-Arguments:\r
-\r
- Descriptor - The descriptor to be built\r
- \r
- Entry - According to this entry\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-{\r
- Descriptor->BaseAddress = Entry->BaseAddress;\r
- Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;\r
- Descriptor->Capabilities = Entry->Capabilities;\r
- Descriptor->Attributes = Entry->Attributes;\r
- Descriptor->GcdMemoryType = Entry->GcdMemoryType;\r
- Descriptor->ImageHandle = Entry->ImageHandle;\r
- Descriptor->DeviceHandle = Entry->DeviceHandle;\r
-}\r
-\r
-EFI_STATUS\r
-CoreGetMemorySpaceDescriptor (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Retrieves the descriptor for a memory region containing a specified address.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Specified start address\r
- \r
- Descriptor - Specified length\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter\r
- \r
- EFI_SUCCESS - Successfully get memory space descriptor.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- LIST_ENTRY *StartLink;\r
- LIST_ENTRY *EndLink;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
-\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (Descriptor == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- CoreAcquireGcdMemoryLock ();\r
-\r
- //\r
- // Search for the list of descriptors that contain BaseAddress \r
- //\r
- Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdMemorySpaceMap);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_NOT_FOUND;\r
- } else {\r
- //\r
- // Copy the contents of the found descriptor into Descriptor\r
- //\r
- Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- BuildMemoryDescriptor (Descriptor, Entry);\r
- }\r
-\r
- CoreReleaseGcdMemoryLock ();\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-CoreSetMemorySpaceAttributes (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length,\r
- IN UINT64 Attributes\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Modifies the attributes for a memory region in the global coherency domain of the\r
-processor.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Specified start address\r
- \r
- Length - Specified length\r
- \r
- Attributes - Specified attributes\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Successfully set attribute of a segment of memory space.\r
-\r
---*/\r
-{\r
- return CoreConvertSpace (GCD_SET_ATTRIBUTES_MEMORY_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, Attributes);\r
-}\r
-\r
-EFI_STATUS\r
-CoreGetMemorySpaceMap (\r
- OUT UINTN *NumberOfDescriptors,\r
- OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Returns a map of the memory resources in the global coherency domain of the\r
-processor.\r
-\r
-Arguments:\r
-\r
- NumberOfDescriptors - Number of descriptors.\r
- \r
- MemorySpaceMap - Descriptor array\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter\r
- \r
- EFI_OUT_OF_RESOURCES - No enough buffer to allocate\r
- \r
- EFI_SUCCESS - Successfully get memory space map.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- LIST_ENTRY *Link;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor;\r
-\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (NumberOfDescriptors == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (MemorySpaceMap == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- CoreAcquireGcdMemoryLock ();\r
-\r
- //\r
- // Count the number of descriptors\r
- //\r
- *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdMemorySpaceMap);\r
-\r
- //\r
- // Allocate the MemorySpaceMap\r
- //\r
- *MemorySpaceMap = CoreAllocateBootServicesPool (*NumberOfDescriptors * sizeof (EFI_GCD_MEMORY_SPACE_DESCRIPTOR));\r
- if (*MemorySpaceMap == NULL) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto Done;\r
- }\r
-\r
- //\r
- // Fill in the MemorySpaceMap\r
- //\r
- Descriptor = *MemorySpaceMap;\r
- Link = mGcdMemorySpaceMap.ForwardLink;\r
- while (Link != &mGcdMemorySpaceMap) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- BuildMemoryDescriptor (Descriptor, Entry);\r
- Descriptor++;\r
- Link = Link->ForwardLink;\r
- }\r
- Status = EFI_SUCCESS;\r
-\r
-Done:\r
- CoreReleaseGcdMemoryLock ();\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-CoreAddIoSpace (\r
- IN EFI_GCD_IO_TYPE GcdIoType,\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Adds reserved I/O or I/O resources to the global coherency domain of the processor.\r
-\r
-Arguments:\r
-\r
- GcdIoType - IO type of the segment.\r
- \r
- BaseAddress - Base address of the segment.\r
- \r
- Length - Length of the segment.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Merged this segment into GCD map.\r
- EFI_INVALID_PARAMETER - Parameter not valid\r
-\r
---*/\r
-{\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (GcdIoType <= EfiGcdIoTypeNonExistent || GcdIoType >= EfiGcdIoTypeMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- return CoreConvertSpace (GCD_ADD_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, GcdIoType, BaseAddress, Length, 0, 0);\r
-}\r
-\r
-EFI_STATUS\r
-CoreAllocateIoSpace (\r
- IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType,\r
- IN EFI_GCD_IO_TYPE GcdIoType,\r
- IN UINTN Alignment,\r
- IN UINT64 Length,\r
- IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_HANDLE DeviceHandle OPTIONAL\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency\r
-domain of the processor.\r
-\r
-Arguments:\r
-\r
- GcdAllocateType - The type of allocate operation\r
- \r
- GcdIoType - The desired IO type\r
- \r
- Alignment - Align with 2^Alignment\r
- \r
- Length - Length to allocate\r
- \r
- BaseAddress - Base address to allocate\r
- \r
- ImageHandle - The image handle consume the allocated space.\r
- \r
- DeviceHandle - The device handle consume the allocated space.\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter.\r
- \r
- EFI_NOT_FOUND - No descriptor contains the desired space.\r
- \r
- EFI_SUCCESS - IO space successfully allocated.\r
-\r
---*/\r
-{\r
- return CoreAllocateSpace (\r
- GCD_ALLOCATE_IO_OPERATION, \r
- GcdAllocateType, \r
- (EFI_GCD_MEMORY_TYPE) 0, \r
- GcdIoType, \r
- Alignment, \r
- Length, \r
- BaseAddress, \r
- ImageHandle, \r
- DeviceHandle\r
- );\r
-}\r
-\r
-EFI_STATUS\r
-CoreFreeIoSpace (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency\r
-domain of the processor.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Base address of the segment.\r
- \r
- Length - Length of the segment.\r
- \r
-Returns:\r
-\r
- EFI_SUCCESS - Space successfully freed.\r
-\r
---*/\r
-{\r
- return CoreConvertSpace (GCD_FREE_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);\r
-}\r
-\r
-EFI_STATUS\r
-CoreRemoveIoSpace (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- IN UINT64 Length\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Removes reserved I/O or I/O resources from the global coherency domain of the\r
-processor.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Base address of the segment.\r
- \r
- Length - Length of the segment.\r
- \r
-Returns:\r
-\r
- EFI_SUCCESS - Successfully removed a segment of IO space.\r
-\r
---*/\r
-{\r
- return CoreConvertSpace (GCD_REMOVE_IO_OPERATION, (EFI_GCD_MEMORY_TYPE) 0, (EFI_GCD_IO_TYPE) 0, BaseAddress, Length, 0, 0);\r
-}\r
-\r
-STATIC\r
-VOID\r
-BuildIoDescriptor (\r
- IN EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor,\r
- IN EFI_GCD_MAP_ENTRY *Entry\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Build a IO descriptor according to an entry.\r
-\r
-Arguments:\r
-\r
- Descriptor - The descriptor to be built\r
- \r
- Entry - According to this entry\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-{\r
- Descriptor->BaseAddress = Entry->BaseAddress;\r
- Descriptor->Length = Entry->EndAddress - Entry->BaseAddress + 1;\r
- Descriptor->GcdIoType = Entry->GcdIoType;\r
- Descriptor->ImageHandle = Entry->ImageHandle;\r
- Descriptor->DeviceHandle = Entry->DeviceHandle;\r
-}\r
-\r
-EFI_STATUS\r
-CoreGetIoSpaceDescriptor (\r
- IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
- OUT EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Retrieves the descriptor for an I/O region containing a specified address.\r
-\r
-Arguments:\r
-\r
- BaseAddress - Specified start address\r
- \r
- Descriptor - Specified length\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Descriptor is NULL.\r
- \r
- EFI_SUCCESS - Successfully get the IO space descriptor.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- LIST_ENTRY *StartLink;\r
- LIST_ENTRY *EndLink;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
-\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (Descriptor == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- CoreAcquireGcdIoLock ();\r
-\r
- //\r
- // Search for the list of descriptors that contain BaseAddress \r
- //\r
- Status = CoreSearchGcdMapEntry (BaseAddress, 1, &StartLink, &EndLink, &mGcdIoSpaceMap);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_NOT_FOUND;\r
- } else {\r
- //\r
- // Copy the contents of the found descriptor into Descriptor\r
- //\r
- Entry = CR (StartLink, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- BuildIoDescriptor (Descriptor, Entry);\r
- }\r
-\r
- CoreReleaseGcdIoLock ();\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-CoreGetIoSpaceMap (\r
- OUT UINTN *NumberOfDescriptors,\r
- OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Returns a map of the I/O resources in the global coherency domain of the processor.\r
-\r
-Arguments:\r
-\r
- NumberOfDescriptors - Number of descriptors.\r
- \r
- IoSpaceMap - Descriptor array\r
-\r
-Returns:\r
-\r
- EFI_INVALID_PARAMETER - Invalid parameter\r
- \r
- EFI_OUT_OF_RESOURCES - No enough buffer to allocate\r
- \r
- EFI_SUCCESS - Successfully get IO space map.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- LIST_ENTRY *Link;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
- EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor;\r
-\r
- //\r
- // Make sure parameters are valid\r
- //\r
- if (NumberOfDescriptors == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (IoSpaceMap == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- CoreAcquireGcdIoLock ();\r
-\r
- //\r
- // Count the number of descriptors\r
- //\r
- *NumberOfDescriptors = CoreCountGcdMapEntry (&mGcdIoSpaceMap);\r
-\r
- //\r
- // Allocate the IoSpaceMap\r
- //\r
- *IoSpaceMap = CoreAllocateBootServicesPool (*NumberOfDescriptors * sizeof (EFI_GCD_IO_SPACE_DESCRIPTOR));\r
- if (*IoSpaceMap == NULL) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto Done;\r
- }\r
-\r
- //\r
- // Fill in the IoSpaceMap\r
- //\r
- Descriptor = *IoSpaceMap;\r
- Link = mGcdIoSpaceMap.ForwardLink;\r
- while (Link != &mGcdIoSpaceMap) {\r
- Entry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- BuildIoDescriptor (Descriptor, Entry);\r
- Descriptor++;\r
- Link = Link->ForwardLink;\r
- }\r
- Status = EFI_SUCCESS;\r
-\r
-Done:\r
- CoreReleaseGcdIoLock ();\r
- return Status;\r
-} \r
-\r
-STATIC\r
-UINT64\r
-CoreConvertResourceDescriptorHobAttributesToCapabilities (\r
- EFI_GCD_MEMORY_TYPE GcdMemoryType,\r
- UINT64 Attributes\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Converts a Resource Descriptor HOB attributes mask to an EFI Memory Descriptor \r
- capabilities mask\r
-\r
-Arguments:\r
-\r
- GcdMemoryType - Type of resource in the GCD memory map.\r
- Attributes - The attribute mask in the Resource Descriptor HOB.\r
-\r
-Returns:\r
-\r
- The capabilities mask for an EFI Memory Descriptor.\r
-\r
---*/\r
-{\r
- UINT64 Capabilities;\r
- GCD_ATTRIBUTE_CONVERSION_ENTRY *Conversion;\r
- \r
- //\r
- // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask\r
- //\r
- for (Capabilities = 0, Conversion = mAttributeConversionTable; Conversion->Attribute != 0; Conversion++) {\r
- if (Conversion->Memory || (GcdMemoryType != EfiGcdMemoryTypeSystemMemory)) {\r
- if (Attributes & Conversion->Attribute) {\r
- Capabilities |= Conversion->Capability;\r
- }\r
- }\r
- }\r
- \r
- return Capabilities;\r
-}\r
-\r
-EFI_STATUS\r
-CoreInitializeMemoryServices (\r
- IN VOID **HobStart,\r
- OUT EFI_PHYSICAL_ADDRESS *MemoryBaseAddress,\r
- OUT UINT64 *MemoryLength\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- External function. Initializes the GCD and memory services based on the memory \r
- descriptor HOBs. This function is responsible for priming the GCD map and the\r
- memory map, so memory allocations and resource allocations can be made. The first\r
- part of this function can not depend on any memory services until at least one\r
- memory descriptor is provided to the memory services. Then the memory services\r
- can be used to intialize the GCD map.\r
-\r
-Arguments:\r
-\r
- HobStart - The start address of the HOB.\r
- MemoryBaseAddress - Start address of memory region found to init DXE core.\r
- MemoryLength - Length of memory region found to init DXE core.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Memory services successfully initialized.\r
-\r
---*/\r
-{\r
- EFI_PEI_HOB_POINTERS Hob;\r
- EFI_MEMORY_TYPE_INFORMATION *EfiMemoryTypeInformation;\r
- UINTN DataSize;\r
- BOOLEAN Found;\r
- EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;\r
- EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r
- EFI_HOB_RESOURCE_DESCRIPTOR *PhitResourceHob;\r
- EFI_PHYSICAL_ADDRESS BaseAddress;\r
- UINT64 Length;\r
- UINT64 Attributes;\r
- UINT64 Capabilities;\r
- EFI_PHYSICAL_ADDRESS MaxMemoryBaseAddress;\r
- UINT64 MaxMemoryLength;\r
- UINT64 MaxMemoryAttributes;\r
- EFI_PHYSICAL_ADDRESS MaxAddress;\r
- EFI_PHYSICAL_ADDRESS HighAddress;\r
- EFI_HOB_RESOURCE_DESCRIPTOR *MaxResourceHob;\r
- EFI_HOB_GUID_TYPE *GuidHob;\r
-\r
- //\r
- // Point at the first HOB. This must be the PHIT HOB.\r
- //\r
- Hob.Raw = *HobStart;\r
- ASSERT (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_HANDOFF);\r
-\r
- //\r
- // Initialize the spin locks and maps in the memory services.\r
- // Also fill in the memory services into the EFI Boot Services Table\r
- //\r
- CoreInitializePool ();\r
-\r
- //\r
- // Initialize Local Variables\r
- //\r
- PhitResourceHob = NULL;\r
- MaxResourceHob = NULL;\r
- ResourceHob = NULL;\r
- BaseAddress = 0;\r
- Length = 0;\r
- Attributes = 0;\r
- MaxMemoryBaseAddress = 0;\r
- MaxMemoryLength = 0;\r
- MaxMemoryAttributes = 0;\r
-\r
- //\r
- // Cache the PHIT HOB for later use\r
- //\r
- PhitHob = Hob.HandoffInformationTable;\r
-\r
- //\r
- // See if a Memory Type Information HOB is available\r
- //\r
- GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);\r
- if (GuidHob != NULL) {\r
- EfiMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);\r
- DataSize = GET_GUID_HOB_DATA_SIZE (GuidHob);\r
- if (EfiMemoryTypeInformation != NULL && DataSize > 0 && DataSize <= (EfiMaxMemoryType + 1) * sizeof (EFI_MEMORY_TYPE_INFORMATION)) {\r
- CopyMem (&gMemoryTypeInformation, EfiMemoryTypeInformation, DataSize);\r
- }\r
- }\r
-\r
- //\r
- // Find the Resource Descriptor HOB that contains range FreeMemoryBaseAddress..FreeMemoryLength\r
- //\r
- Length = 0;\r
- Found = FALSE;\r
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
-\r
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
-\r
- ResourceHob = Hob.ResourceDescriptor;\r
-\r
- if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r
- (ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES ) {\r
-\r
- if (PhitHob->EfiFreeMemoryBottom >= ResourceHob->PhysicalStart && \r
- PhitHob->EfiFreeMemoryTop <= (ResourceHob->PhysicalStart + ResourceHob->ResourceLength) ) {\r
-\r
- //\r
- // Cache the resource descriptor HOB for the memory region described by the PHIT HOB\r
- //\r
- PhitResourceHob = ResourceHob;\r
- Found = TRUE;\r
-\r
- Attributes = PhitResourceHob->ResourceAttribute;\r
- BaseAddress = PageAlignAddress (PhitHob->EfiMemoryTop);\r
- Length = PageAlignLength (ResourceHob->PhysicalStart + ResourceHob->ResourceLength - BaseAddress);\r
- if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {\r
- BaseAddress = PageAlignAddress (PhitHob->EfiFreeMemoryBottom);\r
- Length = PageAlignLength (PhitHob->EfiFreeMemoryTop - BaseAddress);\r
- if (Length < MINIMUM_INITIAL_MEMORY_SIZE) {\r
- BaseAddress = PageAlignAddress (ResourceHob->PhysicalStart);\r
- Length = PageAlignLength ((UINT64)((UINTN)*HobStart - BaseAddress));\r
- }\r
- }\r
- break;\r
- }\r
- }\r
- }\r
- }\r
-\r
- //\r
- // Assert if a resource descriptor HOB for the memory region described by the PHIT was not found\r
- //\r
- ASSERT (Found);\r
-\r
- //\r
- // Search all the resource descriptor HOBs from the highest possible addresses down for a memory\r
- // region that is big enough to initialize the DXE core. Always skip the PHIT Resource HOB.\r
- // The max address must be within the physically addressible range for the processor.\r
- //\r
- MaxMemoryLength = 0;\r
- MaxAddress = EFI_MAX_ADDRESS;\r
- do {\r
- HighAddress = 0;\r
- Found = FALSE;\r
- //\r
- // Search for a tested memory region that is below MaxAddress\r
- //\r
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
-\r
- //\r
- // See if this is a resource descriptor HOB that does not contain the PHIT.\r
- //\r
- if (Hob.ResourceDescriptor != PhitResourceHob && GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
-\r
- ResourceHob = Hob.ResourceDescriptor;\r
- //\r
- // See if this resource descrior HOB describes tested system memory below MaxAddress\r
- //\r
- if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r
- (ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES &&\r
- ResourceHob->PhysicalStart + ResourceHob->ResourceLength <= MaxAddress ) {\r
-\r
- //\r
- // See if this is the highest tested system memory region below MaxAddress\r
- //\r
- if (ResourceHob->PhysicalStart > HighAddress) {\r
-\r
- MaxResourceHob = ResourceHob;\r
- HighAddress = MaxResourceHob->PhysicalStart;\r
- Found = TRUE;\r
- }\r
- }\r
- }\r
- }\r
- if (Found) {\r
- //\r
- // Compute the size of the tested memory region below MaxAddrees\r
- //\r
- MaxMemoryBaseAddress = PageAlignAddress (MaxResourceHob->PhysicalStart);\r
- MaxMemoryLength = PageAlignLength (MaxResourceHob->PhysicalStart + MaxResourceHob->ResourceLength - MaxMemoryBaseAddress);\r
- MaxMemoryAttributes = MaxResourceHob->ResourceAttribute;\r
- }\r
- MaxAddress = ResourceHob->PhysicalStart;\r
- } while (Found && MaxMemoryLength < MINIMUM_INITIAL_MEMORY_SIZE);\r
-\r
- //\r
- //\r
- //\r
- if ((Length < MINIMUM_INITIAL_MEMORY_SIZE) ||\r
- (MaxMemoryBaseAddress > BaseAddress && MaxMemoryLength >= MINIMUM_INITIAL_MEMORY_SIZE) ) {\r
- BaseAddress = MaxMemoryBaseAddress;\r
- Length = MaxMemoryLength;\r
- Attributes = MaxMemoryAttributes;\r
- }\r
-\r
- //\r
- // If no memory regions are found that are big enough to initialize the DXE core, then ASSERT().\r
- //\r
- ASSERT (Length >= MINIMUM_INITIAL_MEMORY_SIZE);\r
-\r
- //\r
- // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask\r
- //\r
- Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (EfiGcdMemoryTypeSystemMemory, Attributes);\r
-\r
- //\r
- // Declare the very first memory region, so the EFI Memory Services are available.\r
- //\r
- CoreAddMemoryDescriptor (\r
- EfiConventionalMemory,\r
- BaseAddress,\r
- RShiftU64 (Length, EFI_PAGE_SHIFT),\r
- Capabilities\r
- );\r
-\r
- *MemoryBaseAddress = BaseAddress;\r
- *MemoryLength = Length;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-CoreInitializeGcdServices (\r
- IN VOID **HobStart,\r
- IN EFI_PHYSICAL_ADDRESS MemoryBaseAddress,\r
- IN UINT64 MemoryLength\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- External function. Initializes the GCD and memory services based on the memory \r
- descriptor HOBs. This function is responsible for priming the GCD map and the\r
- memory map, so memory allocations and resource allocations can be made. The first\r
- part of this function can not depend on any memory services until at least one\r
- memory descriptor is provided to the memory services. Then the memory services\r
- can be used to intialize the GCD map.\r
-\r
-Arguments:\r
-\r
- HobStart - The start address of the HOB\r
-\r
- MemoryBaseAddress - Start address of memory region found to init DXE core.\r
- \r
- MemoryLength - Length of memory region found to init DXE core.\r
-\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - GCD services successfully initialized.\r
-\r
---*/\r
-{\r
- EFI_PEI_HOB_POINTERS Hob;\r
- VOID *NewHobList;\r
- EFI_HOB_HANDOFF_INFO_TABLE *PhitHob;\r
- UINT8 SizeOfMemorySpace;\r
- UINT8 SizeOfIoSpace;\r
- EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r
- EFI_PHYSICAL_ADDRESS BaseAddress;\r
- UINT64 Length;\r
- EFI_STATUS Status;\r
- EFI_GCD_MAP_ENTRY *Entry;\r
- EFI_GCD_MEMORY_TYPE GcdMemoryType;\r
- EFI_GCD_IO_TYPE GcdIoType;\r
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;\r
- EFI_HOB_MEMORY_ALLOCATION *MemoryHob;\r
- EFI_HOB_FIRMWARE_VOLUME *FirmwareVolumeHob;\r
- UINTN NumberOfDescriptors;\r
- EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap;\r
- UINTN Index;\r
- UINT64 Capabilities;\r
- EFI_HOB_CPU * CpuHob;\r
- //\r
- // Cache the PHIT HOB for later use\r
- //\r
- PhitHob = (EFI_HOB_HANDOFF_INFO_TABLE *)(*HobStart);\r
-\r
- //\r
- // Get the number of address lines in the I/O and Memory space for the CPU\r
- //\r
- CpuHob = GetFirstHob (EFI_HOB_TYPE_CPU);\r
- ASSERT (CpuHob != NULL);\r
- SizeOfMemorySpace = CpuHob->SizeOfMemorySpace;\r
- SizeOfIoSpace = CpuHob->SizeOfIoSpace;\r
- \r
- //\r
- // Initialize the GCD Memory Space Map\r
- //\r
- Entry = CoreAllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdMemorySpaceMapEntryTemplate);\r
- ASSERT (Entry != NULL);\r
-\r
- Entry->EndAddress = LShiftU64 (1, SizeOfMemorySpace) - 1;\r
-\r
- InsertHeadList (&mGcdMemorySpaceMap, &Entry->Link);\r
-\r
- //\r
- // Initialize the GCD I/O Space Map\r
- //\r
- Entry = CoreAllocateCopyPool (sizeof (EFI_GCD_MAP_ENTRY), &mGcdIoSpaceMapEntryTemplate);\r
- ASSERT (Entry != NULL);\r
-\r
- Entry->EndAddress = LShiftU64 (1, SizeOfIoSpace) - 1;\r
-\r
- InsertHeadList (&mGcdIoSpaceMap, &Entry->Link);\r
-\r
- //\r
- // Walk the HOB list and add all resource descriptors to the GCD \r
- //\r
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
-\r
- GcdMemoryType = EfiGcdMemoryTypeNonExistent;\r
- GcdIoType = EfiGcdIoTypeNonExistent;\r
-\r
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
-\r
- ResourceHob = Hob.ResourceDescriptor;\r
-\r
- switch (ResourceHob->ResourceType) {\r
- case EFI_RESOURCE_SYSTEM_MEMORY:\r
- if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == TESTED_MEMORY_ATTRIBUTES) {\r
- GcdMemoryType = EfiGcdMemoryTypeSystemMemory;\r
- }\r
- if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == INITIALIZED_MEMORY_ATTRIBUTES) {\r
- GcdMemoryType = EfiGcdMemoryTypeReserved;\r
- }\r
- if ((ResourceHob->ResourceAttribute & MEMORY_ATTRIBUTE_MASK) == PRESENT_MEMORY_ATTRIBUTES) {\r
- GcdMemoryType = EfiGcdMemoryTypeReserved;\r
- }\r
- break;\r
- case EFI_RESOURCE_MEMORY_MAPPED_IO:\r
- case EFI_RESOURCE_FIRMWARE_DEVICE:\r
- GcdMemoryType = EfiGcdMemoryTypeMemoryMappedIo;\r
- break;\r
- case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:\r
- case EFI_RESOURCE_MEMORY_RESERVED:\r
- GcdMemoryType = EfiGcdMemoryTypeReserved;\r
- break;\r
- case EFI_RESOURCE_IO:\r
- GcdIoType = EfiGcdIoTypeIo;\r
- break;\r
- case EFI_RESOURCE_IO_RESERVED:\r
- GcdIoType = EfiGcdIoTypeReserved;\r
- break;\r
- }\r
-\r
- if (GcdMemoryType != EfiGcdMemoryTypeNonExistent) {\r
-\r
- //\r
- // Convert the Resource HOB Attributes to an EFI Memory Capabilities mask\r
- //\r
- Capabilities = CoreConvertResourceDescriptorHobAttributesToCapabilities (\r
- GcdMemoryType,\r
- ResourceHob->ResourceAttribute\r
- );\r
-\r
- Status = CoreInternalAddMemorySpace (\r
- GcdMemoryType,\r
- ResourceHob->PhysicalStart,\r
- ResourceHob->ResourceLength,\r
- Capabilities\r
- );\r
- }\r
-\r
- if (GcdIoType != EfiGcdIoTypeNonExistent) {\r
- Status = CoreAddIoSpace (\r
- GcdIoType,\r
- ResourceHob->PhysicalStart,\r
- ResourceHob->ResourceLength\r
- );\r
- }\r
- }\r
- }\r
-\r
- //\r
- // Allocate first memory region from the GCD by the DXE core\r
- //\r
- Status = CoreAllocateMemorySpace (\r
- EfiGcdAllocateAddress,\r
- EfiGcdMemoryTypeSystemMemory,\r
- 0,\r
- MemoryLength,\r
- &MemoryBaseAddress,\r
- gDxeCoreImageHandle,\r
- NULL\r
- );\r
-\r
- //\r
- // Walk the HOB list and allocate all memory space that is consumed by memory allocation HOBs,\r
- // and Firmware Volume HOBs. Also update the EFI Memory Map with the memory allocation HOBs.\r
- //\r
- for (Hob.Raw = *HobStart; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_MEMORY_ALLOCATION) {\r
- MemoryHob = Hob.MemoryAllocation;\r
- BaseAddress = MemoryHob->AllocDescriptor.MemoryBaseAddress;\r
- Status = CoreAllocateMemorySpace (\r
- EfiGcdAllocateAddress,\r
- EfiGcdMemoryTypeSystemMemory, \r
- 0,\r
- MemoryHob->AllocDescriptor.MemoryLength,\r
- &BaseAddress,\r
- gDxeCoreImageHandle,\r
- NULL\r
- );\r
- if (!EFI_ERROR (Status)) {\r
- Status = CoreGetMemorySpaceDescriptor (MemoryHob->AllocDescriptor.MemoryBaseAddress, &Descriptor);\r
- if (!EFI_ERROR (Status)) {\r
- CoreAddMemoryDescriptor (\r
- MemoryHob->AllocDescriptor.MemoryType,\r
- MemoryHob->AllocDescriptor.MemoryBaseAddress,\r
- RShiftU64 (MemoryHob->AllocDescriptor.MemoryLength, EFI_PAGE_SHIFT),\r
- Descriptor.Capabilities & (~EFI_MEMORY_RUNTIME)\r
- );\r
- }\r
- }\r
- }\r
-\r
- if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV) {\r
- FirmwareVolumeHob = Hob.FirmwareVolume;\r
- BaseAddress = FirmwareVolumeHob->BaseAddress;\r
- Status = CoreAllocateMemorySpace (\r
- EfiGcdAllocateAddress,\r
- EfiGcdMemoryTypeMemoryMappedIo, \r
- 0,\r
- FirmwareVolumeHob->Length,\r
- &BaseAddress,\r
- gDxeCoreImageHandle,\r
- NULL\r
- );\r
- }\r
- }\r
-\r
- //\r
- // Relocate HOB List to an allocated pool buffer.\r
- //\r
- NewHobList = CoreAllocateCopyPool (\r
- (UINTN)PhitHob->EfiFreeMemoryBottom - (UINTN)(*HobStart), \r
- *HobStart\r
- );\r
- ASSERT (NewHobList != NULL);\r
-\r
- *HobStart = NewHobList;\r
- gHobList = NewHobList;\r
-\r
- //\r
- // Add and allocate the remaining unallocated system memory to the memory services.\r
- //\r
- Status = CoreGetMemorySpaceMap (&NumberOfDescriptors, &MemorySpaceMap);\r
- for (Index = 0; Index < NumberOfDescriptors; Index++) {\r
- if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeSystemMemory) {\r
- if (MemorySpaceMap[Index].ImageHandle == NULL) {\r
- BaseAddress = PageAlignAddress (MemorySpaceMap[Index].BaseAddress);\r
- Length = PageAlignLength (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - BaseAddress);\r
- CoreAddMemoryDescriptor (\r
- EfiConventionalMemory,\r
- BaseAddress,\r
- RShiftU64 (Length, EFI_PAGE_SHIFT),\r
- MemorySpaceMap[Index].Capabilities & (~EFI_MEMORY_RUNTIME)\r
- );\r
- Status = CoreAllocateMemorySpace (\r
- EfiGcdAllocateAddress,\r
- EfiGcdMemoryTypeSystemMemory,\r
- 0,\r
- Length,\r
- &BaseAddress,\r
- gDxeCoreImageHandle,\r
- NULL\r
- );\r
- }\r
- }\r
- }\r
- CoreFreePool (MemorySpaceMap);\r
-\r
- return EFI_SUCCESS;\r
-}\r
projects / mirror_edk2.git / blobdiff