MdePkg/Include/Pi/PiDxeCis.h File Reference


Data Structures

struct  EFI_GCD_MEMORY_SPACE_DESCRIPTOR
struct  EFI_GCD_IO_SPACE_DESCRIPTOR
struct  DXE_SERVICES

Defines

#define DXE_SERVICES_SIGNATURE   0x565245535f455844ULL
#define DXE_SPECIFICATION_MAJOR_REVISION   1
#define DXE_SPECIFICATION_MINOR_REVISION   40
#define DXE_SERVICES_REVISION   ((DXE_SPECIFICATION_MAJOR_REVISION<<16) | (DXE_SPECIFICATION_MINOR_REVISION))

Typedefs

typedef EFI_STATUS(EFIAPIEFI_ADD_MEMORY_SPACE )(IN EFI_GCD_MEMORY_TYPE GcdMemoryType, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Capabilities)
typedef EFI_STATUS(EFIAPIEFI_ALLOCATE_MEMORY_SPACE )(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)
typedef EFI_STATUS(EFIAPIEFI_FREE_MEMORY_SPACE )(IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length)
typedef EFI_STATUS(EFIAPIEFI_REMOVE_MEMORY_SPACE )(IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length)
typedef EFI_STATUS(EFIAPIEFI_GET_MEMORY_SPACE_DESCRIPTOR )(IN EFI_PHYSICAL_ADDRESS BaseAddress, OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor)
typedef EFI_STATUS(EFIAPIEFI_SET_MEMORY_SPACE_ATTRIBUTES )(IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)
typedef IN UINT64 Length
typedef IN UINT64 IN UINT64 Capabilities
typedef EFI_STATUS(EFIAPIEFI_GET_MEMORY_SPACE_MAP )(OUT UINTN *NumberOfDescriptors, OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap)
typedef EFI_STATUS(EFIAPIEFI_ADD_IO_SPACE )(IN EFI_GCD_IO_TYPE GcdIoType, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length)
typedef EFI_STATUS(EFIAPIEFI_ALLOCATE_IO_SPACE )(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)
typedef EFI_STATUS(EFIAPIEFI_FREE_IO_SPACE )(IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length)
typedef EFI_STATUS(EFIAPIEFI_REMOVE_IO_SPACE )(IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length)
typedef EFI_STATUS(EFIAPIEFI_GET_IO_SPACE_DESCRIPTOR )(IN EFI_PHYSICAL_ADDRESS BaseAddress, OUT EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor)
typedef EFI_STATUS(EFIAPIEFI_GET_IO_SPACE_MAP )(OUT UINTN *NumberOfDescriptors, OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap)
typedef EFI_STATUS(EFIAPIEFI_DISPATCH )(VOID)
typedef EFI_STATUS(EFIAPIEFI_SCHEDULE )(IN EFI_HANDLE FirmwareVolumeHandle, IN CONST EFI_GUID *FileName)
typedef EFI_STATUS(EFIAPIEFI_TRUST )(IN EFI_HANDLE FirmwareVolumeHandle, IN CONST EFI_GUID *FileName)
typedef EFI_STATUS(EFIAPIEFI_PROCESS_FIRMWARE_VOLUME )(IN CONST VOID *FirmwareVolumeHeader, IN UINTN Size, OUT EFI_HANDLE *FirmwareVolumeHandle)
typedef DXE_SERVICES EFI_DXE_SERVICES

Enumerations

enum  EFI_GCD_MEMORY_TYPE {
  EfiGcdMemoryTypeNonExistent, EfiGcdMemoryTypeReserved, EfiGcdMemoryTypeSystemMemory, EfiGcdMemoryTypeMemoryMappedIo,
  EfiGcdMemoryTypePersistentMemory, EfiGcdMemoryTypeMoreReliable, EfiGcdMemoryTypeMaximum
}
enum  EFI_GCD_IO_TYPE { EfiGcdIoTypeNonExistent, EfiGcdIoTypeReserved, EfiGcdIoTypeIo, EfiGcdIoTypeMaximum }
enum  EFI_GCD_ALLOCATE_TYPE {
  EfiGcdAllocateAnySearchBottomUp, EfiGcdAllocateMaxAddressSearchBottomUp, EfiGcdAllocateAddress, EfiGcdAllocateAnySearchTopDown,
  EfiGcdAllocateMaxAddressSearchTopDown, EfiGcdMaxAllocateType
}

Functions

typedef EFI_STATUS (EFIAPI *EFI_SET_MEMORY_SPACE_CAPABILITIES)(IN EFI_PHYSICAL_ADDRESS BaseAddress

Detailed Description

Include file matches things in PI.

Copyright (c) 2006 - 2015, 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 that 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.

Revision Reference:
PI Version 1.4

Define Documentation

#define DXE_SERVICES_REVISION   ((DXE_SPECIFICATION_MAJOR_REVISION<<16) | (DXE_SPECIFICATION_MINOR_REVISION))

#define DXE_SERVICES_SIGNATURE   0x565245535f455844ULL

#define DXE_SPECIFICATION_MAJOR_REVISION   1

#define DXE_SPECIFICATION_MINOR_REVISION   40


Typedef Documentation

typedef IN UINT64 IN UINT64 Capabilities

Adds reserved I/O or I/O resources to the global coherency domain of the processor.

Parameters:
GcdIoType The type of I/O resource being added.
BaseAddress The physical address that is the start address of the I/O resource being added.
Length The size in bytes of the I/O resource that is being added.
Return values:
EFI_SUCCESS The I/O resource was added to the global coherency domain of the processor.
EFI_INVALID_PARAMETER GcdIoType is invalid.
EFI_INVALID_PARAMETER Length is zero.
EFI_OUT_OF_RESOURCES There are not enough system resources to add the I/O resource to the global coherency domain of the processor.
EFI_UNSUPPORTED The processor does not support one or more bytes of the I/O resource range specified by BaseAddress and Length.
EFI_ACCESS_DENIED One or more bytes of the I/O resource range specified by BaseAddress and Length conflicts with an I/O resource range that was previously added to the global coherency domain of the processor.
EFI_ACCESS_DENIED One or more bytes of the I/O resource range specified by BaseAddress and Length was allocated in a prior call to AllocateIoSpace().

Adds reserved memory, system memory, or memory-mapped I/O resources to the global coherency domain of the processor.

Parameters:
GcdMemoryType The type of memory resource being added.
BaseAddress The physical address that is the start address of the memory resource being added.
Length The size, in bytes, of the memory resource that is being added.
Capabilities The bit mask of attributes that the memory resource region supports.
Return values:
EFI_SUCCESS The memory resource was added to the global coherency domain of the processor.
EFI_INVALID_PARAMETER GcdMemoryType is invalid.
EFI_INVALID_PARAMETER Length is zero.
EFI_OUT_OF_RESOURCES There are not enough system resources to add the memory resource to the global coherency domain of the processor.
EFI_UNSUPPORTED The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length.
EFI_ACCESS_DENIED One or more bytes of the memory resource range specified by BaseAddress and Length conflicts with a memory resource range that was previously added to the global coherency domain of the processor.
EFI_ACCESS_DENIED One or more bytes of the memory resource range specified by BaseAddress and Length was allocated in a prior call to AllocateMemorySpace().

typedef EFI_STATUS(EFIAPI * EFI_ALLOCATE_IO_SPACE)(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)

Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency domain of the processor.

Parameters:
GcdAllocateType The type of allocation to perform.
GcdIoType The type of I/O resource being allocated.
Alignment The log base 2 of the boundary that BaseAddress must be aligned on output.
Length The size in bytes of the I/O resource range that is being allocated.
BaseAddress A pointer to a physical address.
Imagehandle The image handle of the agent that is allocating the I/O resource.
DeviceHandle The device handle for which the I/O resource is being allocated.
Return values:
EFI_SUCCESS The I/O resource was allocated from the global coherency domain of the processor.
EFI_INVALID_PARAMETER GcdAllocateType is invalid.
EFI_INVALID_PARAMETER GcdIoType is invalid.
EFI_INVALID_PARAMETER Length is zero.
EFI_INVALID_PARAMETER BaseAddress is NULL.
EFI_INVALID_PARAMETER ImageHandle is NULL.
EFI_OUT_OF_RESOURCES There are not enough system resources to allocate the I/O resource from the global coherency domain of the processor.
EFI_NOT_FOUND The I/O resource request could not be satisfied.

typedef EFI_STATUS(EFIAPI * EFI_ALLOCATE_MEMORY_SPACE)(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)

Allocates nonexistent memory, reserved memory, system memory, or memorymapped I/O resources from the global coherency domain of the processor.

Parameters:
GcdAllocateType The type of allocation to perform.
GcdMemoryType The type of memory resource being allocated.
Alignment The log base 2 of the boundary that BaseAddress must be aligned on output. Align with 2^Alignment.
Length The size in bytes of the memory resource range that is being allocated.
BaseAddress A pointer to a physical address to allocate.
Imagehandle The image handle of the agent that is allocating the memory resource.
DeviceHandle The device handle for which the memory resource is being allocated.
Return values:
EFI_INVALID_PARAMETER GcdAllocateType is invalid.
EFI_INVALID_PARAMETER GcdMemoryType is invalid.
EFI_INVALID_PARAMETER Length is zero.
EFI_INVALID_PARAMETER BaseAddress is NULL.
EFI_INVALID_PARAMETER ImageHandle is NULL.
EFI_NOT_FOUND The memory resource request could not be satisfied. No descriptor contains the desired space.
EFI_OUT_OF_RESOURCES There are not enough system resources to allocate the memory resource from the global coherency domain of the processor.
EFI_SUCCESS The memory resource was allocated from the global coherency domain of the processor.

typedef EFI_STATUS(EFIAPI * EFI_DISPATCH)(VOID)

Loads and executed DXE drivers from firmware volumes.

The Dispatch() function searches for DXE drivers in firmware volumes that have been installed since the last time the Dispatch() service was called. It then evaluates the dependency expressions of all the DXE drivers and loads and executes those DXE drivers whose dependency expression evaluate to TRUE. This service must interact with the Security Architectural Protocol to authenticate DXE drivers before they are executed. This process is continued until no more DXE drivers can be executed.

Return values:
EFI_SUCCESS One or more DXE driver were dispatched.
EFI_NOT_FOUND No DXE drivers were dispatched.
EFI_ALREADY_STARTED An attempt is being made to start the DXE Dispatcher recursively. Thus, no action was taken.

Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency domain of the processor.

Parameters:
BaseAddress The physical address that is the start address of the I/O resource being freed.
Length The size in bytes of the I/O resource range that is being freed.
Return values:
EFI_SUCCESS The I/O resource was freed from the global coherency domain of the processor.
EFI_INVALID_PARAMETER Length is zero.
EFI_UNSUPPORTED The processor does not support one or more bytes of the I/O resource range specified by BaseAddress and Length.
EFI_NOT_FOUND The I/O resource range specified by BaseAddress and Length was not allocated with previous calls to AllocateIoSpace().
EFI_OUT_OF_RESOURCES There are not enough system resources to free the I/O resource from the global coherency domain of the processor.

Frees nonexistent memory, reserved memory, system memory, or memory-mapped I/O resources from the global coherency domain of the processor.

Parameters:
BaseAddress The physical address that is the start address of the memory resource being freed.
Length The size in bytes of the memory resource range that is being freed.
Return values:
EFI_SUCCESS The memory resource was freed from the global coherency domain of the processor.
EFI_INVALID_PARAMETER Length is zero.
EFI_UNSUPPORTED The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length.
EFI_NOT_FOUND The memory resource range specified by BaseAddress and Length was not allocated with previous calls to AllocateMemorySpace().
EFI_OUT_OF_RESOURCES There are not enough system resources to free the memory resource from the global coherency domain of the processor.

Retrieves the descriptor for an I/O region containing a specified address.

Parameters:
BaseAddress The physical address that is the start address of an I/O region.
Descriptor A pointer to a caller allocated descriptor.
Return values:
EFI_SUCCESS The descriptor for the I/O resource region containing BaseAddress was returned in Descriptor.
EFI_INVALID_PARAMETER Descriptor is NULL.
EFI_NOT_FOUND An I/O resource range containing BaseAddress was not found.

typedef EFI_STATUS(EFIAPI * EFI_GET_IO_SPACE_MAP)(OUT UINTN *NumberOfDescriptors, OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap)

Returns a map of the I/O resources in the global coherency domain of the processor.

Parameters:
NumberOfDescriptors A pointer to number of descriptors returned in the IoSpaceMap buffer.
MemorySpaceMap A pointer to the array of EFI_GCD_IO_SPACE_DESCRIPTORs.
Return values:
EFI_SUCCESS The I/O space map was returned in the IoSpaceMap buffer, and the number of descriptors in IoSpaceMap was returned in NumberOfDescriptors.
EFI_INVALID_PARAMETER NumberOfDescriptors is NULL.
EFI_INVALID_PARAMETER IoSpaceMap is NULL.
EFI_OUT_OF_RESOURCES There are not enough resources to allocate IoSpaceMap.

Retrieves the descriptor for a memory region containing a specified address.

Parameters:
BaseAddress The physical address that is the start address of a memory region.
Descriptor A pointer to a caller allocated descriptor.
Return values:
EFI_SUCCESS The descriptor for the memory resource region containing BaseAddress was returned in Descriptor.
EFI_INVALID_PARAMETER Descriptor is NULL.
EFI_NOT_FOUND A memory resource range containing BaseAddress was not found.

typedef EFI_STATUS(EFIAPI * EFI_GET_MEMORY_SPACE_MAP)(OUT UINTN *NumberOfDescriptors, OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap)

Returns a map of the memory resources in the global coherency domain of the processor.

Parameters:
NumberOfDescriptors A pointer to number of descriptors returned in the MemorySpaceMap buffer.
MemorySpaceMap A pointer to the array of EFI_GCD_MEMORY_SPACE_DESCRIPTORs.
Return values:
EFI_SUCCESS The memory space map was returned in the MemorySpaceMap buffer, and the number of descriptors in MemorySpaceMap was returned in NumberOfDescriptors.
EFI_INVALID_PARAMETER NumberOfDescriptors is NULL.
EFI_INVALID_PARAMETER MemorySpaceMap is NULL.
EFI_OUT_OF_RESOURCES There are not enough resources to allocate MemorySpaceMap.

typedef EFI_STATUS(EFIAPI * EFI_PROCESS_FIRMWARE_VOLUME)(IN CONST VOID *FirmwareVolumeHeader, IN UINTN Size, OUT EFI_HANDLE *FirmwareVolumeHandle)

Creates a firmware volume handle for a firmware volume that is present in system memory.

Parameters:
FirmwareVolumeHeader A pointer to the header of the firmware volume.
Size The size, in bytes, of the firmware volume.
FirmwareVolumeHandle On output, a pointer to the created handle.
Return values:
EFI_SUCCESS The EFI_FIRMWARE_VOLUME_PROTOCOL and EFI_DEVICE_PATH_PROTOCOL were installed onto FirmwareVolumeHandle for the firmware volume described by FirmwareVolumeHeader and Size.
EFI_VOLUME_CORRUPTED The firmware volume described by FirmwareVolumeHeader and Size is corrupted.
EFI_OUT_OF_RESOURCES There are not enough system resources available to produce the EFI_FIRMWARE_VOLUME_PROTOCOL and EFI_DEVICE_PATH_PROTOCOL for the firmware volume described by FirmwareVolumeHeader and Size.

Removes reserved I/O or I/O resources from the global coherency domain of the processor.

Parameters:
BaseAddress A pointer to a physical address that is the start address of the I/O resource being removed.
Length The size in bytes of the I/O resource that is being removed.
Return values:
EFI_SUCCESS The I/O resource was removed from the global coherency domain of the processor.
EFI_INVALID_PARAMETER Length is zero.
EFI_UNSUPPORTED The processor does not support one or more bytes of the I/O resource range specified by BaseAddress and Length.
EFI_NOT_FOUND One or more bytes of the I/O resource range specified by BaseAddress and Length was not added with previous calls to AddIoSpace().
EFI_ACCESS_DENIED One or more bytes of the I/O resource range specified by BaseAddress and Length has been allocated with AllocateIoSpace().
EFI_OUT_OF_RESOURCES There are not enough system resources to remove the I/O resource from the global coherency domain of the processor.

Removes reserved memory, system memory, or memory-mapped I/O resources from the global coherency domain of the processor.

Parameters:
BaseAddress The physical address that is the start address of the memory resource being removed.
Length The size in bytes of the memory resource that is being removed.
Return values:
EFI_SUCCESS The memory resource was removed from the global coherency domain of the processor.
EFI_INVALID_PARAMETER Length is zero.
EFI_UNSUPPORTED The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length.
EFI_NOT_FOUND One or more bytes of the memory resource range specified by BaseAddress and Length was not added with previous calls to AddMemorySpace().
EFI_ACCESS_DEFINED One or more bytes of the memory resource range specified by BaseAddress and Length has been allocated with AllocateMemorySpace().
EFI_OUT_OF_RESOURCES There are not enough system resources to remove the memory resource from the global coherency domain of the processor.

typedef EFI_STATUS(EFIAPI * EFI_SCHEDULE)(IN EFI_HANDLE FirmwareVolumeHandle, IN CONST EFI_GUID *FileName)

Clears the Schedule on Request (SOR) flag for a component that is stored in a firmware volume.

Parameters:
FirmwareVolumeHandle The handle of the firmware volume that contains the file specified by FileName.
FileName A pointer to the name of the file in a firmware volume.
Return values:
EFI_SUCCESS The DXE driver was found and its SOR bit was cleared.
EFI_NOT_FOUND The DXE driver does not exist, or the DXE driver exists and its SOR bit is not set.

Modifies the attributes for a memory region in the global coherency domain of the processor.

Parameters:
BaseAddress The physical address that is the start address of a memory region.
Length The size in bytes of the memory region.
Attributes The bit mask of attributes to set for the memory region.
Return values:
EFI_SUCCESS The attributes were set for the memory region.
EFI_INVALID_PARAMETER Length is zero.
EFI_UNSUPPORTED The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length.
EFI_UNSUPPORTED The bit mask of attributes is not support for the memory resource range specified by BaseAddress and Length.
EFI_ACCESS_DENIED The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of the memory resource range.
EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol is not available yet.

typedef EFI_STATUS(EFIAPI * EFI_TRUST)(IN EFI_HANDLE FirmwareVolumeHandle, IN CONST EFI_GUID *FileName)

Promotes a file stored in a firmware volume from the untrusted to the trusted state.

Parameters:
FirmwareVolumeHandle The handle of the firmware volume that contains the file specified by FileName.
DriverName A pointer to the name of the file in a firmware volume.
Returns:
Status of promoting FFS from untrusted to trusted state.
Return values:
EFI_NOT_FOUND The file was not found in the untrusted state.

typedef IN UINT64 Length


Enumeration Type Documentation

The type of allocation to perform.

Enumerator:
EfiGcdAllocateAnySearchBottomUp  The GCD memory space map is searched from the lowest address up to the highest address looking for unallocated memory ranges.
EfiGcdAllocateMaxAddressSearchBottomUp  The GCD memory space map is searched from the lowest address up to the specified MaxAddress looking for unallocated memory ranges.
EfiGcdAllocateAddress  The GCD memory space map is checked to see if the memory range starting at the specified Address is available.
EfiGcdAllocateAnySearchTopDown  The GCD memory space map is searched from the highest address down to the lowest address looking for unallocated memory ranges.
EfiGcdAllocateMaxAddressSearchTopDown  The GCD memory space map is searched from the specified MaxAddress down to the lowest address looking for unallocated memory ranges.
EfiGcdMaxAllocateType 

Global Coherencey Domain types - IO type.

Enumerator:
EfiGcdIoTypeNonExistent  An I/O region that is visible to the boot processor. However, there are no system components that are currently decoding this I/O region.
EfiGcdIoTypeReserved  An I/O region that is visible to the boot processor. This I/O region is currently being decoded by a system component, but the I/O region cannot be used to access I/O devices.
EfiGcdIoTypeIo  An I/O region that is visible to the boot processor. This I/O region is currently being decoded by a system component that is producing I/O ports that can be used to access I/O devices.
EfiGcdIoTypeMaximum 

Global Coherencey Domain types - Memory type.

Enumerator:
EfiGcdMemoryTypeNonExistent  A memory region that is visible to the boot processor. However, there are no system components that are currently decoding this memory region.
EfiGcdMemoryTypeReserved  A memory region that is visible to the boot processor. This memory region is being decoded by a system component, but the memory region is not considered to be either system memory or memory-mapped I/O.
EfiGcdMemoryTypeSystemMemory  A memory region that is visible to the boot processor. A memory controller is currently decoding this memory region and the memory controller is producing a tested system memory region that is available to the memory services.
EfiGcdMemoryTypeMemoryMappedIo  A memory region that is visible to the boot processor. This memory region is currently being decoded by a component as memory-mapped I/O that can be used to access I/O devices in the platform.
EfiGcdMemoryTypePersistentMemory  A memory region that is visible to the boot processor. This memory supports byte-addressable non-volatility.
EfiGcdMemoryTypeMoreReliable  A memory region that provides higher reliability relative to other memory in the system. If all memory has the same reliability, then this bit is not used.
EfiGcdMemoryTypeMaximum 


Function Documentation

typedef EFI_STATUS ( EFIAPI EFI_SET_MEMORY_SPACE_CAPABILITIES  ) 

Modifies the capabilities for a memory region in the global coherency domain of the processor.

Parameters:
BaseAddress The physical address that is the start address of a memory region.
Length The size in bytes of the memory region.
Capabilities The bit mask of capabilities that the memory region supports.
Return values:
EFI_SUCCESS The capabilities were set for the memory region.
EFI_INVALID_PARAMETER Length is zero.
EFI_UNSUPPORTED The capabilities specified by Capabilities do not include the memory region attributes currently in use.
EFI_ACCESS_DENIED The capabilities for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_OUT_OF_RESOURCES There are not enough system resources to modify the capabilities of the memory resource range.


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