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123 lines
4.7 KiB
C
123 lines
4.7 KiB
C
/** @file
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Runtime Architectural Protocol as defined in PI Specification VOLUME 2 DXE
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Allows the runtime functionality of the DXE Foundation to be contained
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in a separate driver. It also provides hooks for the DXE Foundation to
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export information that is needed at runtime. As such, this protocol allows
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services to the DXE Foundation to manage runtime drivers and events.
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This protocol also implies that the runtime services required to transition
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to virtual mode, SetVirtualAddressMap() and ConvertPointer(), have been
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registered into the UEFI Runtime Table in the UEFI System Table. This protocol
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must be produced by a runtime DXE driver and may only be consumed by the DXE Foundation.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __ARCH_PROTOCOL_RUNTIME_H__
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#define __ARCH_PROTOCOL_RUNTIME_H__
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///
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/// Global ID for the Runtime Architectural Protocol
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///
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#define EFI_RUNTIME_ARCH_PROTOCOL_GUID \
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{ 0xb7dfb4e1, 0x52f, 0x449f, {0x87, 0xbe, 0x98, 0x18, 0xfc, 0x91, 0xb7, 0x33 } }
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typedef struct _EFI_RUNTIME_ARCH_PROTOCOL EFI_RUNTIME_ARCH_PROTOCOL;
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///
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/// LIST_ENTRY from BaseType
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///
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typedef LIST_ENTRY EFI_LIST_ENTRY;
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typedef struct _EFI_RUNTIME_IMAGE_ENTRY EFI_RUNTIME_IMAGE_ENTRY;
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///
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/// EFI_RUNTIME_IMAGE_ENTRY
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///
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struct _EFI_RUNTIME_IMAGE_ENTRY {
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///
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/// Start of image that has been loaded in memory. It is a pointer
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/// to either the DOS header or PE header of the image.
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///
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VOID *ImageBase;
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///
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/// Size in bytes of the image represented by ImageBase.
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///
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UINT64 ImageSize;
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///
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/// Information about the fix-ups that were performed on ImageBase when it was
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/// loaded into memory.
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///
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VOID *RelocationData;
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///
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/// The ImageHandle passed into ImageBase when it was loaded.
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///
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EFI_HANDLE Handle;
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///
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/// Entry for this node in the EFI_RUNTIME_ARCHITECTURE_PROTOCOL.ImageHead list.
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///
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EFI_LIST_ENTRY Link;
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};
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typedef struct _EFI_RUNTIME_EVENT_ENTRY EFI_RUNTIME_EVENT_ENTRY;
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///
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/// EFI_RUNTIME_EVENT_ENTRY
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///
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struct _EFI_RUNTIME_EVENT_ENTRY {
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///
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/// The same as Type passed into CreateEvent().
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///
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UINT32 Type;
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///
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/// The same as NotifyTpl passed into CreateEvent().
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///
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EFI_TPL NotifyTpl;
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///
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/// The same as NotifyFunction passed into CreateEvent().
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///
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EFI_EVENT_NOTIFY NotifyFunction;
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///
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/// The same as NotifyContext passed into CreateEvent().
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///
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VOID *NotifyContext;
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///
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/// The EFI_EVENT returned by CreateEvent(). Event must be in runtime memory.
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///
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EFI_EVENT *Event;
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///
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/// Entry for this node in the
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/// EFI_RUNTIME_ARCHITECTURE_PROTOCOL.EventHead list.
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///
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EFI_LIST_ENTRY Link;
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};
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///
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/// Allows the runtime functionality of the DXE Foundation to be contained in a
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/// separate driver. It also provides hooks for the DXE Foundation to export
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/// information that is needed at runtime. As such, this protocol allows the DXE
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/// Foundation to manage runtime drivers and events. This protocol also implies
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/// that the runtime services required to transition to virtual mode,
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/// SetVirtualAddressMap() and ConvertPointer(), have been registered into the
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/// EFI Runtime Table in the EFI System Partition. This protocol must be produced
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/// by a runtime DXE driver and may only be consumed by the DXE Foundation.
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///
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struct _EFI_RUNTIME_ARCH_PROTOCOL {
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EFI_LIST_ENTRY ImageHead; ///< A list of type EFI_RUNTIME_IMAGE_ENTRY.
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EFI_LIST_ENTRY EventHead; ///< A list of type EFI_RUNTIME_EVENT_ENTRY.
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UINTN MemoryDescriptorSize; ///< Size of a memory descriptor that is returned by GetMemoryMap().
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UINT32 MemoryDesciptorVersion; ///< Version of a memory descriptor that is returned by GetMemoryMap().
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UINTN MemoryMapSize;///< Size of the memory map in bytes contained in MemoryMapPhysical and MemoryMapVirtual.
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EFI_MEMORY_DESCRIPTOR *MemoryMapPhysical; ///< Pointer to a runtime buffer that contains a copy of
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///< the memory map returned via GetMemoryMap().
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EFI_MEMORY_DESCRIPTOR *MemoryMapVirtual; ///< Pointer to MemoryMapPhysical that is updated to virtual mode after SetVirtualAddressMap().
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BOOLEAN VirtualMode; ///< Boolean that is TRUE if SetVirtualAddressMap() has been called.
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BOOLEAN AtRuntime; ///< Boolean that is TRUE if ExitBootServices () has been called.
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};
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extern EFI_GUID gEfiRuntimeArchProtocolGuid;
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#endif
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