Fill out the firmware interfaces somewhat.
This commit is contained in:
parent
e412d080fb
commit
bcf898f1d8
@ -1,5 +1,5 @@
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/*-
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* Copyright (c) 2000 Doug Rabson
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* Copyright (c) 2001 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -29,589 +29,16 @@
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#ifndef _MACHINE_EFI_H_
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#define _MACHINE_EFI_H_
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typedef u_int8_t BOOLEAN;
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typedef int64_t INTN;
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typedef u_int64_t UINTN;
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typedef int8_t INT8;
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typedef u_int8_t UINT8;
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typedef int16_t INT16;
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typedef u_int16_t UINT16;
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typedef int32_t INT32;
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typedef u_int32_t UINT32;
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typedef int64_t INT64;
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typedef u_int64_t UINT64;
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typedef UINT8 CHAR8;
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typedef UINT16 CHAR16;
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#include <boot/efi/include/ia64/efibind.h>
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#include <boot/efi/include/efidef.h>
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#include <boot/efi/include/efierr.h>
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#include <boot/efi/include/efidevp.h>
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#include <boot/efi/include/eficon.h>
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#include <boot/efi/include/efiapi.h>
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typedef struct _EFI_GUID {
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UINT32 Data1;
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UINT16 Data2;
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UINT16 Data3;
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UINT8 Data4[8];
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} EFI_GUID;
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extern EFI_SYSTEM_TABLE *ia64_efi_systab;
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extern EFI_RUNTIME_SERVICES *ia64_efi_runtime;
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typedef INTN EFI_STATUS;
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typedef void *EFI_HANDLE;
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typedef void *EFI_EVENT;
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typedef UINT64 EFI_LBA;
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typedef UINTN EFI_TPL;
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/*
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* EFI_STATUS Error Codes.
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*/
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#define EFI_SUCCESS 0
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#define EFI_LOAD_ERROR 1
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#define EFI_INVALID_PARAMETER 2
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#define EFI_UNSUPPORTED 3
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#define EFI_BAD_BUFFER_SIZE 4
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#define EFI_BUFFER_TOO_SMALL 5
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#define EFI_NOT_READY 6
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#define EFI_DEVICE_ERROR 7
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#define EFI_WRITE_PROTECTED 8
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#define EFI_OUT_OF_RESOURCES 9
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#define EFI_VOLUME_CORRUPTED 10
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#define EFI_VOLUME_FULL 11
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#define EFI_NO_MEDIA 12
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#define EFI_MEDIA_CHANGED 13
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#define EFI_NOT_FOUND 14
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#define EFI_ACCESS_DENIED 15
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#define EFI_NO_RESPONSE 16
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#define EFI_NO_MAPPING 17
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#define EFI_TIMEOUT 18
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#define EFI_NOT_STARTED 19
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#define EFI_ALREADY_STARTED 20
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#define EFI_ABORTED 21
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#define EFI_ICMP_ERROR 22
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#define EFI_TFTP_ERROR 23
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#define EFI_PROTOCOL_ERROR 24
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/*
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* EFI_STATUS Warning Codes.
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*/
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#define EFI_WARN_UNKNOWN_GLYPH 1
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#define EFI_WARN_DELETE_FAILURE 2
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#define EFI_WARN_WRITE_FAILURE 3
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#define EFI_WARN_BUFFER_TOO_SMALL 4
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typedef struct _EFI_MAC_ADDRESS {
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CHAR8 Address[32];
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} EFI_MAC_ADDRESS;
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typedef struct _EFI_IPv4_ADDRESS {
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CHAR8 Address[4];
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} EFI_IPv4_ADDRESS;
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typedef struct _EFI_IPv6_ADDRESS {
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CHAR8 Address[16];
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} EFI_IPv6_ADDRESS, EFI_IP_ADDRESS;
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typedef struct _EFI_TIME {
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UINT16 Year; /* 1998 - 20xx */
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UINT8 Month; /* 1 - 12 */
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UINT8 Day; /* 1 - 31 */
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UINT8 Hour; /* 0 - 23 */
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UINT8 Minute; /* 0 - 59 */
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UINT8 Second; /* 0 - 59 */
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UINT8 Pad1;
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UINT32 Nanosecond; /* 0 - 999,999,999 */
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INT16 TimeZone; /* -1440 - 1440 or 2047 */
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UINT8 Daylight;
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UINT8 Pad2;
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} EFI_TIME;
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typedef struct _EFI_TIME_CAPABILITIES {
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UINT32 Resolution;
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UINT32 Accuracy;
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BOOLEAN SetsToZero;
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} EFI_TIME_CAPABILITIES;
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/*
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* Reset types.
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*/
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typedef enum _EFI_RESET_TYPE {
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EfiResetCold,
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EfiResetWarm
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} EFI_RESET_TYPE;
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/*
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* Allocate Types.
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*/
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typedef enum _EFI_ALLOCATE_TYPE {
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AllocateAnyPages,
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AllocateMaxAddress,
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AllocateAddress,
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MaxAllocateType
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} EFI_ALLOCATE_TYPE;
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/*
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* Memory types.
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*/
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typedef enum _EFI_MEMORY_TYPE {
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EfiReservedMemoryType,
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EfiLoaderCode,
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EfiLoaderData,
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EfiBootServicesCode,
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EfiBootServicesData,
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EfiRuntimeServicesCode,
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EfiRuntimeServicesData,
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EfiConventionalMemory,
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EfiUnusableMemory,
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EfiAcpiReclaimMemory,
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EfiAcpiMemoryNvs,
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EfiMemoryMappedIo,
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EfiMemoryMappedIoPortSpace,
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EfiPalCode,
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EfiMaxMemoryType
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} EFI_MEMORY_TYPE;
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/*
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* Physical Address.
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*/
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typedef UINT64 EFI_PHYSICAL_ADDRESS;
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/*
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* Virtual Address.
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*/
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typedef UINT64 EFI_VIRTUAL_ADDRESS;
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/*
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* Memory Descriptor.
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*/
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typedef struct _EFI_MEMORY_DESCRIPTOR {
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UINT32 Type;
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EFI_PHYSICAL_ADDRESS PhysicalStart;
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EFI_VIRTUAL_ADDRESS VirtualStart;
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UINT64 NumberOfPages;
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UINT64 Attribute;
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} EFI_MEMORY_DESCRIPTOR;
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#define EFI_MEMORY_DESCRIPTOR_VERSION 1
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/*
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* Memory Attribute Definitions.
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*/
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#define EFI_MEMORY_UC 0x0000000000000001
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#define EFI_MEMORY_WC 0x0000000000000002
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#define EFI_MEMORY_WT 0x0000000000000004
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#define EFI_MEMORY_WB 0x0000000000000008
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#define EFI_MEMORY_UCE 0x0000000000000010
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#define EFI_MEMORY_WP 0x0000000000001000
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#define EFI_MEMORY_RP 0x0000000000002000
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#define EFI_MEMORY_XP 0x0000000000004000
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#define EFI_MEMORY_RUNTIME 0x8000000000000000
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/*
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* Variable Attributes.
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*/
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#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
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#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
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#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
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/*
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* Task Priority Levels.
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*/
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#define TPL_APPLICATION 4
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#define TPL_CALLBACK 8
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#define TPL_NOTIFY 16
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#define TPL_HIGH_LEVEL 31
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/*
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* Event Types.
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*/
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#define EVT_TIMER 0x80000000
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#define EVT_RUNTIME 0x40000000
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#define EVT_RUNTIME_CONTEXT 0x20000000
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#define EVT_NOTIFY_WAIT 0x00000100
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#define EVT_NOTIFY_SIGNAL 0x00000200
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#define EVT_SIGNAL_EXIT_BOOT_SERVICES 0x00000201
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#define EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE 0x60000202
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/*
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* Event Notification Function.
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*/
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typedef void (*EFI_EVENT_NOTIFY)(EFI_EVENT Event,
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void *Context);
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/*
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* Timer Delay
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*/
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typedef enum _EFI_TIMER_DELAY {
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TimerCancel,
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TimerPeriodic,
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TimerRelative
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} EFI_TIMER_DELAY;
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/*
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* Interface Types.
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*/
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typedef enum _EFI_INTERFACE_TYPE {
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EFI_NATIVE_INTERFACE,
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EFI_PCODE_INTERFACE
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} EFI_INTERFACE_TYPE;
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/*
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* Search Type.
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*/
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typedef enum _EFI_LOCATE_SEARCH_TYPE {
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AllHandles,
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ByRegisterNotify,
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ByProtocol
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} EFI_LOCATE_SEARCH_TYPE;
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/*
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* Device Path.
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*/
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typedef struct _EFI_DEVICE_PATH {
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UINT8 Type;
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UINT8 SubType;
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UINT8 Length[2];
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} EFI_DEVICE_PATH;
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/*
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* SIMPLE_INPUT Protocol
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*/
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#define SIMPLE_INPUT_PROTOCOL \
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{ 0x387477c1,0x69c7,0x11d2,0x8e,0x39,0x00,0xa0,0xc9,0x69,0x72,0x3b }
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typedef struct _EFI_INPUT_KEY {
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UINT16 ScanCode;
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CHAR16 UnicodeChar;
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} EFI_INPUT_KEY;
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typedef struct _SIMPLE_INPUT_INTERFACE SIMPLE_INPUT_INTERFACE;
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struct _SIMPLE_INPUT_INTERFACE {
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EFI_STATUS (*Reset)
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(SIMPLE_INPUT_INTERFACE *This,
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BOOLEAN ExtendedVerification);
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EFI_STATUS (*ReadKey)
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(SIMPLE_INPUT_INTERFACE *This,
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EFI_INPUT_KEY *Key);
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EFI_EVENT WaitForKey;
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};
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/*
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* SIMPLE_TEXT_OUTPUT Protocol.
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*/
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#define SIMPLE_TEXT_OUTPUT_PROTOCOL \
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{ 0x387477c2,0x69c7,0x11d2,0x8e,0x39,0x00,0xa0,0xc9,0x69,0x72,0x3b }
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typedef struct _SIMPLE_TEXT_OUTPUT_MODE {
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INT32 MaxMode;
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/* current settings */
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INT32 Mode;
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INT32 Attribute;
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INT32 CursorColumn;
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INT32 CursorRow;
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BOOLEAN CursorVisible;
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} SIMPLE_TEXT_OUTPUT_MODE;
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typedef struct _SIMPLE_TEXT_OUTPUT_INTERFACE SIMPLE_TEXT_OUTPUT_INTERFACE;
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struct _SIMPLE_TEXT_OUTPUT_INTERFACE {
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EFI_STATUS (*Reset)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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BOOLEAN ExtendedVerification);
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EFI_STATUS (*OutputString)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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CHAR16 *String);
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EFI_STATUS (*TestString)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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CHAR16 *String);
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EFI_STATUS (*QueryMode)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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UINTN ModeNumber,
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UINTN *Columns,
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UINTN *Rows);
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EFI_STATUS (*SetMode)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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UINTN ModeNumber);
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EFI_STATUS (*SetAttribute)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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UINTN Attribute);
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EFI_STATUS (*ClearScreen)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This);
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EFI_STATUS (*SetCursorPosition)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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UINTN Column,
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UINTN Row);
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EFI_STATUS (*EnableCursor)
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(SIMPLE_TEXT_OUTPUT_INTERFACE *This,
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BOOLEAN Visible);
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SIMPLE_TEXT_OUTPUT_MODE Mode;
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};
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/*
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* Standard EFI table header.
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*/
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typedef struct _EFI_TABLE_HEADER {
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u_int64_t Signature;
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u_int32_t Revision;
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u_int32_t HeaderSize;
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u_int32_t CRC32;
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u_int32_t Reserved;
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} EFI_TABLE_HEADER;
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/*
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* EFI Runtime Services Table.
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*/
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#define EFI_RUNTIME_SERVICES_SIGNATURE 0x56524553544e5552
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#define EFI_RUNTIME_SERVICES_REVISION ((1<<16) | 99)
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typedef struct _EFI_RUNTIME_SERVICES {
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EFI_TABLE_HEADER Hdr;
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/*
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* Time Services.
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*/
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EFI_STATUS (*GetTime)
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(EFI_TIME *Time,
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EFI_TIME_CAPABILITIES *Capabilities);
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EFI_STATUS (*SetTime)
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(EFI_TIME *Time);
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EFI_STATUS (*GetWakeupTime)
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(BOOLEAN *Enabled,
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BOOLEAN *Pending,
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EFI_TIME *Time);
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EFI_STATUS (*SetWakeupTime)
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(BOOLEAN Enable,
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EFI_TIME *Time);
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/*
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* Virtual Memory Services.
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*/
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EFI_STATUS (*SetVirtualAddressMap)
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(UINTN MemoryMapSize,
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UINTN DescriptorSize,
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UINT32 DescriptorVersion,
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EFI_MEMORY_DESCRIPTOR *VirtualMap);
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EFI_STATUS (*ConvertPointer)
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(UINTN DebugDisposition,
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void **Address);
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/*
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* Variable Services.
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*/
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EFI_STATUS (*GetVariable)
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(CHAR16 *VariableName,
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EFI_GUID *VendorGuid,
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UINT32 *Attributes,
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UINTN *DataSize,
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void *Data);
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EFI_STATUS (*GetNextVariableName)
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(UINTN *VariableNameSize,
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CHAR16 *VariableName,
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EFI_GUID *VendorGuid);
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EFI_STATUS (*SetVariable)
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(CHAR16 *VariableName,
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EFI_GUID *VendorGuid,
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UINT32 Attributes,
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UINTN DataSize,
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void *Data);
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/*
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* Miscellaneous Services.
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*/
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EFI_STATUS (*GetNextHighMonotonicCount)
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(UINT32 *HighCount);
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EFI_STATUS (*ResetSystem)
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(EFI_RESET_TYPE ResetType,
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EFI_STATUS ResetStatus,
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UINTN DataSize,
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CHAR16 *ResetData);
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} EFI_RUNTIME_SERVICES;
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/*
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* Boot Services Table.
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*/
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#define EFI_BOOT_SERVICES_SIGNATURE 0x56524553544f4f42
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#define EFI_BOOT_SERVICES_REVISION ((0<<16) | 91)
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typedef struct _EFI_BOOT_SERVICES {
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EFI_TABLE_HEADER Hdr;
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/*
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* Task Priority Services.
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*/
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EFI_TPL (*RaiseTPL)
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(EFI_TPL NewTpl);
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void (*RestoreTPL)
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(EFI_TPL OldTpl);
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/*
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* Memory Services.
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*/
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EFI_STATUS (*AllocatePages)
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(EFI_ALLOCATE_TYPE Type,
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EFI_MEMORY_TYPE MemoryType,
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UINTN Pages,
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EFI_PHYSICAL_ADDRESS *Memory);
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EFI_STATUS (*FreePages)
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(EFI_PHYSICAL_ADDRESS Memory,
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UINTN Pages);
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EFI_STATUS (*GetMemoryMap)
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(UINTN *MemoryMapSize,
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EFI_MEMORY_DESCRIPTOR *MemoryMap,
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UINTN *MapKey,
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UINTN *DescriptorSize,
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UINT32 *DescriptorVersion);
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EFI_STATUS (*AllocatePool)
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(EFI_MEMORY_TYPE *PoolType,
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UINTN Size,
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void **Buffer);
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EFI_STATUS (*FreePool)
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(void *Buffer);
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/*
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* Event & Timer Services.
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*/
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EFI_STATUS (*CreateEvent)
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(UINT32 Type,
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EFI_TPL NotifyTpl,
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EFI_EVENT_NOTIFY NotifyFunction,
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void *NotifyContext,
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EFI_EVENT *Event);
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EFI_STATUS (*SetTimer)
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(EFI_EVENT Event,
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EFI_TIMER_DELAY Type,
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UINT64 TriggerTime);
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EFI_STATUS (*WaitForEvent)
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(UINTN NumberOfEvents,
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EFI_EVENT *Event,
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UINTN *Index);
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EFI_STATUS (*SignalEvent)
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(EFI_EVENT Event);
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EFI_STATUS (*CloseEvent)
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(EFI_EVENT Event);
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EFI_STATUS (*CheckEvent)
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(EFI_EVENT Event);
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/*
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* Protocol Handler Services.
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*/
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EFI_STATUS (*InstallProtocolInterface)
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(EFI_HANDLE *Handle,
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EFI_GUID *Protocol,
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EFI_INTERFACE_TYPE InterfaceType,
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void *Interface);
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EFI_STATUS (*ReinstallProtocolInterface)
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(EFI_HANDLE *Handle,
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EFI_GUID *Protocol,
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void *OldInterface,
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void *NewInterface);
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EFI_STATUS (*UninstallProtocolInterface)
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(EFI_HANDLE Handle,
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EFI_GUID *Protocol,
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void *Interface);
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EFI_STATUS (*HandleProtocol)
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(EFI_HANDLE Handle,
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EFI_GUID *Protocol,
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void **Interface);
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EFI_STATUS (*PCHandleProtocol)
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(EFI_HANDLE Handle,
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EFI_GUID *Protocol,
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void **Interface);
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EFI_STATUS (*RegisterProtocolNotify)
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(EFI_GUID *Protocol,
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EFI_EVENT Event,
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void **Registration);
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EFI_STATUS (*LocateHandle)
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(EFI_LOCATE_SEARCH_TYPE SearchType,
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EFI_GUID *Protocol,
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||||
void *SearchKey,
|
||||
UINTN *BufferSize,
|
||||
EFI_HANDLE *Buffer);
|
||||
EFI_STATUS (*LocateDevicePath)
|
||||
(EFI_GUID *Protocol,
|
||||
EFI_DEVICE_PATH **DevicePath,
|
||||
EFI_HANDLE Device);
|
||||
EFI_STATUS (*InstallConfigurationTable)
|
||||
(EFI_GUID *Guid,
|
||||
void *Table);
|
||||
|
||||
/*
|
||||
* Image Services.
|
||||
*/
|
||||
EFI_STATUS (*LoadImage)
|
||||
(BOOLEAN BootPolicy,
|
||||
EFI_HANDLE ParentImageHandle,
|
||||
EFI_DEVICE_PATH *FilePath,
|
||||
void *SourceBuffer,
|
||||
UINTN SourceSize,
|
||||
EFI_HANDLE *ImageHandle);
|
||||
EFI_STATUS (*StartImage)
|
||||
(EFI_HANDLE ImageHandle,
|
||||
UINTN *ExitDataSize,
|
||||
CHAR16 *ExitData);
|
||||
EFI_STATUS (*Exit)
|
||||
(EFI_HANDLE ImageHandle,
|
||||
EFI_STATUS ExitStatus,
|
||||
UINTN ExitDataSize,
|
||||
CHAR16 ExitData);
|
||||
EFI_STATUS (*UnloadImage)
|
||||
(EFI_HANDLE ImageHandle);
|
||||
EFI_STATUS (*ExitBootServices)
|
||||
(EFI_HANDLE ImageHandle,
|
||||
UINTN MapKey);
|
||||
|
||||
/*
|
||||
* Miscellaneous Services.
|
||||
*/
|
||||
EFI_STATUS (*GetNextMonotonicCount)
|
||||
(UINT64 *Count);
|
||||
EFI_STATUS (*Stall)
|
||||
(UINTN Microseconds);
|
||||
EFI_STATUS (*SetWatchdogTimer)
|
||||
(UINTN Timeout,
|
||||
UINT64 WatchdogCode,
|
||||
UINTN DataSize,
|
||||
CHAR16 *WatchdogData);
|
||||
|
||||
} EFI_BOOT_SERVICES;
|
||||
|
||||
/*
|
||||
* EFI Configuration Table and GUID Declarations.
|
||||
*/
|
||||
#define MPS_TABLE_GUID \
|
||||
{0xeb9d2d2f,0x2d88,0x11d3,0x9a,0x16,0x00,0x90,0x27,0x3f,0xc1,0x4d}
|
||||
#define ACPI_TABLE_GUID \
|
||||
{0xeb9d2d30,0x2d88,0x11d3,0x9a,0x16,0x00,0x90,0x27,0x3f,0xc1,0x4d}
|
||||
#define ACPI_20_TABLE_GUID \
|
||||
{0x8868e871,0xe4f1,0x11d3,0xbc,0x22,0x00,x080,0xc7,0x3c,0x88,0x81}
|
||||
#define SMBIOS_TABLE_GUID \
|
||||
{0xeb9d2d31,0x2d88,0x11d3,0x9a,0x16,0x00,0x90,0x27,0x3f,0xc1,0x4d}
|
||||
#define SAL_TABLE_GUID \
|
||||
{0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,0x00,0x90,0x27,0x3f,0xc1,0x4d}
|
||||
|
||||
typedef struct _EFI_CONFIGURATION_TABLE {
|
||||
EFI_GUID VendorGuid;
|
||||
void *VendorTable;
|
||||
} EFI_CONFIGURATION_TABLE;
|
||||
|
||||
/*
|
||||
* EFI System Table.
|
||||
*/
|
||||
typedef struct _EFI_SYSTEM_TABLE {
|
||||
EFI_TABLE_HEADER Hdr;
|
||||
|
||||
CHAR16 *FirmwareVendor;
|
||||
UINT32 FirmwareRevision;
|
||||
|
||||
EFI_HANDLE ConsoleInHandle;
|
||||
SIMPLE_INPUT_INTERFACE *ConIn;
|
||||
|
||||
EFI_HANDLE ConsoleOutHandle;
|
||||
SIMPLE_TEXT_OUTPUT_INTERFACE *ConOut;
|
||||
|
||||
EFI_HANDLE StandardErrorHandle;
|
||||
SIMPLE_TEXT_OUTPUT_INTERFACE *StdErr;
|
||||
|
||||
EFI_RUNTIME_SERVICES *RuntimeServices;
|
||||
EFI_BOOT_SERVICES *BootServices;
|
||||
|
||||
UINTN NumberOfTableEntries;
|
||||
EFI_CONFIGURATION_TABLE *ConfiguratioNTable;
|
||||
} EFI_SYSTEM_TABLE;
|
||||
extern void ia64_efi_init(void);
|
||||
|
||||
#endif /* _MACHINE_EFI_H_ */
|
||||
|
@ -90,9 +90,15 @@ struct ia64_pal_result {
|
||||
extern struct ia64_pal_result
|
||||
ia64_call_pal_static(u_int64_t proc, u_int64_t arg1,
|
||||
u_int64_t arg2, u_int64_t arg3);
|
||||
extern struct ia64_pal_result
|
||||
ia64_call_pal_static_physical(u_int64_t proc, u_int64_t arg1,
|
||||
u_int64_t arg2, u_int64_t arg3);
|
||||
extern struct ia64_pal_result
|
||||
ia64_call_pal_stacked(u_int64_t proc, u_int64_t arg1,
|
||||
u_int64_t arg2, u_int64_t arg3);
|
||||
extern struct ia64_pal_result
|
||||
ia64_call_pal_stacked_physical(u_int64_t proc, u_int64_t arg1,
|
||||
u_int64_t arg2, u_int64_t arg3);
|
||||
|
||||
|
||||
#endif /* _MACHINE_PAL_H_ */
|
||||
|
@ -95,4 +95,34 @@ struct sal_ap_wakeup_descriptor {
|
||||
u_int64_t sale_vector;
|
||||
};
|
||||
|
||||
/*
|
||||
* SAL Procedure numbers.
|
||||
*/
|
||||
|
||||
#define SAL_SET_VECTORS 0x01000000
|
||||
#define SAL_GET_STATE_INFO 0x01000001
|
||||
#define SAL_GET_STATE_INFO_SIZE 0x01000002
|
||||
#define SAL_CLEAR_STATE_INFO 0x01000003
|
||||
#define SAL_MC_RENDEZ 0x01000004
|
||||
#define SAL_MC_SET_PARAMS 0x01000005
|
||||
#define SAL_REGISTER_PHYSICAL_ADDR 0x01000006
|
||||
#define SAL_CACHE_FLUSH 0x01000008
|
||||
#define SAL_CACHE_INIT 0x01000009
|
||||
#define SAL_PCI_CONFIG_READ 0x01000010
|
||||
#define SAL_PCI_CONFIG_WRITE 0x01000011
|
||||
#define SAL_FREQ_BASE 0x01000012
|
||||
#define SAL_UPDATE_PAL 0x01000020
|
||||
|
||||
struct ia64_sal_result {
|
||||
int64_t sal_status;
|
||||
u_int64_t sal_result[3];
|
||||
};
|
||||
|
||||
typedef struct ia64_sal_result sal_entry_t
|
||||
(u_int64_t, u_int64_t, u_int64_t, u_int64_t,
|
||||
u_int64_t, u_int64_t, u_int64_t, u_int64_t);
|
||||
|
||||
extern void ia64_sal_init(struct sal_system_table *saltab);
|
||||
extern sal_entry_t *ia64_sal_entry;
|
||||
|
||||
#endif /* _MACHINE_SAL_H_ */
|
||||
|
Loading…
Reference in New Issue
Block a user