/src/hbfa-fl/HBFA/UefiHostTestPkg/Library/PeiServicesTablePointerLibHost/CpuIo.c

Source (jump to first uncovered line)
/** @file
  The default version of EFI_PEI_CPU_IO_PPI support published by PeiServices in
  PeiCore initialization phase.

  EFI_PEI_CPU_IO_PPI is installed by some platform or chipset-specific PEIM that
  abstracts the processor-visible I/O operations. When PeiCore is started, the
  default version of EFI_PEI_CPU_IO_PPI will be assigned to PeiServices table.

Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <PiPei.h>

/**
  Memory-based read services.

  This function is to perform the Memory Access Read service based on installed
  instance of the EFI_PEI_CPU_IO_PPI.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return EFI_NOT_YET_AVAILABLE.

  @param  PeiServices           An indirect pointer to the PEI Services Table
                                published by the PEI Foundation.
  @param  This                  Pointer to local data for the interface.
  @param  Width                 The width of the access. Enumerated in bytes.
  @param  Address               The physical address of the access.
  @param  Count                 The number of accesses to perform.
  @param  Buffer                A pointer to the buffer of data.

  @retval EFI_SUCCESS           The function completed successfully.
  @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
EFI_STATUS
EFIAPI
PeiDefaultMemRead (
  IN  CONST EFI_PEI_SERVICES            **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI          *This,
  IN  EFI_PEI_CPU_IO_PPI_WIDTH          Width,
  IN  UINT64                            Address,
  IN  UINTN                             Count,
  IN  OUT VOID                          *Buffer
  )
{
  return EFI_NOT_AVAILABLE_YET;
}

/**
  Memory-based write services.

  This function is to perform the Memory Access Write service based on installed
  instance of the EFI_PEI_CPU_IO_PPI.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return EFI_NOT_YET_AVAILABLE.

  @param  PeiServices           An indirect pointer to the PEI Services Table
                                published by the PEI Foundation.
  @param  This                  Pointer to local data for the interface.
  @param  Width                 The width of the access. Enumerated in bytes.
  @param  Address               The physical address of the access.
  @param  Count                 The number of accesses to perform.
  @param  Buffer                A pointer to the buffer of data.

  @retval EFI_SUCCESS           The function completed successfully.
  @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
EFI_STATUS
EFIAPI
PeiDefaultMemWrite (
  IN  CONST EFI_PEI_SERVICES            **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI          *This,
  IN  EFI_PEI_CPU_IO_PPI_WIDTH          Width,
  IN  UINT64                            Address,
  IN  UINTN                             Count,
  IN  OUT VOID                          *Buffer
  )
{
  return EFI_NOT_AVAILABLE_YET;
}

/**
  IO-based read services.

  This function is to perform the IO-base read service for the EFI_PEI_CPU_IO_PPI.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return EFI_NOT_YET_AVAILABLE.

  @param  PeiServices           An indirect pointer to the PEI Services Table
                                published by the PEI Foundation.
  @param  This                  Pointer to local data for the interface.
  @param  Width                 The width of the access. Enumerated in bytes.
  @param  Address               The physical address of the access.
  @param  Count                 The number of accesses to perform.
  @param  Buffer                A pointer to the buffer of data.

  @retval EFI_SUCCESS           The function completed successfully.
  @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
EFI_STATUS
EFIAPI
PeiDefaultIoRead (
  IN      CONST EFI_PEI_SERVICES          **PeiServices,
  IN      CONST EFI_PEI_CPU_IO_PPI        *This,
  IN      EFI_PEI_CPU_IO_PPI_WIDTH        Width,
  IN      UINT64                          Address,
  IN      UINTN                           Count,
  IN OUT  VOID                            *Buffer
  )
{
  return EFI_NOT_AVAILABLE_YET;
}

/**
  IO-based write services.

  This function is to perform the IO-base write service for the EFI_PEI_CPU_IO_PPI.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return EFI_NOT_YET_AVAILABLE.

  @param  PeiServices           An indirect pointer to the PEI Services Table
                                published by the PEI Foundation.
  @param  This                  Pointer to local data for the interface.
  @param  Width                 The width of the access. Enumerated in bytes.
  @param  Address               The physical address of the access.
  @param  Count                 The number of accesses to perform.
  @param  Buffer                A pointer to the buffer of data.

  @retval EFI_SUCCESS           The function completed successfully.
  @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
EFI_STATUS
EFIAPI
PeiDefaultIoWrite (
  IN      CONST EFI_PEI_SERVICES          **PeiServices,
  IN      CONST EFI_PEI_CPU_IO_PPI        *This,
  IN      EFI_PEI_CPU_IO_PPI_WIDTH        Width,
  IN      UINT64                          Address,
  IN      UINTN                           Count,
  IN OUT  VOID                            *Buffer
  )
{
  return EFI_NOT_AVAILABLE_YET;
}

/**
  8-bit I/O read operations.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return An 8-bit value returned from the I/O space.
**/
UINT8
EFIAPI
PeiDefaultIoRead8 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  Reads an 16-bit I/O port.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return A 16-bit value returned from the I/O space.
**/
UINT16
EFIAPI
PeiDefaultIoRead16 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  Reads an 32-bit I/O port.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return A 32-bit value returned from the I/O space.
**/
UINT32
EFIAPI
PeiDefaultIoRead32 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  Reads an 64-bit I/O port.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return A 64-bit value returned from the I/O space.
**/
UINT64
EFIAPI
PeiDefaultIoRead64 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  8-bit I/O write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.
**/
VOID
EFIAPI
PeiDefaultIoWrite8 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address,
  IN  UINT8                       Data
  )
{
}

/**
  16-bit I/O write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.
**/
VOID
EFIAPI
PeiDefaultIoWrite16 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address,
  IN  UINT16                      Data
  )
{
}

/**
  32-bit I/O write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.
**/
VOID
EFIAPI
PeiDefaultIoWrite32 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address,
  IN  UINT32                      Data
  )
{
}

/**
  64-bit I/O write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.
**/
VOID
EFIAPI
PeiDefaultIoWrite64 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address,
  IN  UINT64                      Data
  )
{
}

/**
  8-bit memory read operations.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return An 8-bit value returned from the memory space.

**/
UINT8
EFIAPI
PeiDefaultMemRead8 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  16-bit memory read operations.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return An 16-bit value returned from the memory space.

**/
UINT16
EFIAPI
PeiDefaultMemRead16 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  32-bit memory read operations.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return An 32-bit value returned from the memory space.

**/
UINT32
EFIAPI
PeiDefaultMemRead32 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  64-bit memory read operations.

  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
  return 0.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.

  @return An 64-bit value returned from the memory space.

**/
UINT64
EFIAPI
PeiDefaultMemRead64 (
  IN  CONST EFI_PEI_SERVICES      **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI    *This,
  IN  UINT64                      Address
  )
{
  return 0;
}

/**
  8-bit memory write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.

**/
VOID
EFIAPI
PeiDefaultMemWrite8 (
  IN  CONST EFI_PEI_SERVICES        **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI      *This,
  IN  UINT64                        Address,
  IN  UINT8                         Data
  )
{
}

/**
  16-bit memory write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.

**/
VOID
EFIAPI
PeiDefaultMemWrite16 (
  IN  CONST EFI_PEI_SERVICES        **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI      *This,
  IN  UINT64                        Address,
  IN  UINT16                        Data
  )
{
}

/**
  32-bit memory write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.

**/
VOID
EFIAPI
PeiDefaultMemWrite32 (
  IN  CONST EFI_PEI_SERVICES        **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI      *This,
  IN  UINT64                        Address,
  IN  UINT32                        Data
  )
{
}

/**
  64-bit memory write operations.
  If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
  nothing.

  @param  PeiServices    An indirect pointer to the PEI Services Table published by the PEI Foundation.
  @param  This           Pointer to local data for the interface.
  @param  Address        The physical address of the access.
  @param  Data           The data to write.

**/
VOID
EFIAPI
PeiDefaultMemWrite64 (
  IN  CONST EFI_PEI_SERVICES        **PeiServices,
  IN  CONST EFI_PEI_CPU_IO_PPI      *This,
  IN  UINT64                        Address,
  IN  UINT64                        Data
  )
{
}

///
/// This default instance of EFI_PEI_CPU_IO_PPI install assigned to EFI_PEI_SERVICE.CpuIo
/// when PeiCore's initialization.
///
EFI_PEI_CPU_IO_PPI mPeiDefaultCpuIoPpi = {
  {
    PeiDefaultMemRead,
    PeiDefaultMemWrite
  },
  {
    PeiDefaultIoRead,
    PeiDefaultIoWrite
  },
  PeiDefaultIoRead8,
  PeiDefaultIoRead16,
  PeiDefaultIoRead32,
  PeiDefaultIoRead64,
  PeiDefaultIoWrite8,
  PeiDefaultIoWrite16,
  PeiDefaultIoWrite32,
  PeiDefaultIoWrite64,
  PeiDefaultMemRead8,
  PeiDefaultMemRead16,
  PeiDefaultMemRead32,
  PeiDefaultMemRead64,
  PeiDefaultMemWrite8,
  PeiDefaultMemWrite16,
  PeiDefaultMemWrite32,
  PeiDefaultMemWrite64
};

Coverage Report

Created: 2024-10-17 06:29

Line	Count	Source (jump to first uncovered line)
1		/** @file
2		The default version of EFI_PEI_CPU_IO_PPI support published by PeiServices in
3		PeiCore initialization phase.
4
5		EFI_PEI_CPU_IO_PPI is installed by some platform or chipset-specific PEIM that
6		abstracts the processor-visible I/O operations. When PeiCore is started, the
7		default version of EFI_PEI_CPU_IO_PPI will be assigned to PeiServices table.
8
9		Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
10		SPDX-License-Identifier: BSD-2-Clause-Patent
11
12		**/
13
14		#include <PiPei.h>
15
16		/**
17		Memory-based read services.
18
19		This function is to perform the Memory Access Read service based on installed
20		instance of the EFI_PEI_CPU_IO_PPI.
21		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
22		return EFI_NOT_YET_AVAILABLE.
23
24		@param PeiServices An indirect pointer to the PEI Services Table
25		published by the PEI Foundation.
26		@param This Pointer to local data for the interface.
27		@param Width The width of the access. Enumerated in bytes.
28		@param Address The physical address of the access.
29		@param Count The number of accesses to perform.
30		@param Buffer A pointer to the buffer of data.
31
32		@retval EFI_SUCCESS The function completed successfully.
33		@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
34		**/
35		EFI_STATUS
36		EFIAPI
37		PeiDefaultMemRead (
38		IN CONST EFI_PEI_SERVICES **PeiServices,
39		IN CONST EFI_PEI_CPU_IO_PPI *This,
40		IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
41		IN UINT64 Address,
42		IN UINTN Count,
43		IN OUT VOID *Buffer
44		)
45	0	{
46	0	return EFI_NOT_AVAILABLE_YET;
47	0	}
48
49		/**
50		Memory-based write services.
51
52		This function is to perform the Memory Access Write service based on installed
53		instance of the EFI_PEI_CPU_IO_PPI.
54		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
55		return EFI_NOT_YET_AVAILABLE.
56
57		@param PeiServices An indirect pointer to the PEI Services Table
58		published by the PEI Foundation.
59		@param This Pointer to local data for the interface.
60		@param Width The width of the access. Enumerated in bytes.
61		@param Address The physical address of the access.
62		@param Count The number of accesses to perform.
63		@param Buffer A pointer to the buffer of data.
64
65		@retval EFI_SUCCESS The function completed successfully.
66		@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
67		**/
68		EFI_STATUS
69		EFIAPI
70		PeiDefaultMemWrite (
71		IN CONST EFI_PEI_SERVICES **PeiServices,
72		IN CONST EFI_PEI_CPU_IO_PPI *This,
73		IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
74		IN UINT64 Address,
75		IN UINTN Count,
76		IN OUT VOID *Buffer
77		)
78	0	{
79	0	return EFI_NOT_AVAILABLE_YET;
80	0	}
81
82		/**
83		IO-based read services.
84
85		This function is to perform the IO-base read service for the EFI_PEI_CPU_IO_PPI.
86		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
87		return EFI_NOT_YET_AVAILABLE.
88
89		@param PeiServices An indirect pointer to the PEI Services Table
90		published by the PEI Foundation.
91		@param This Pointer to local data for the interface.
92		@param Width The width of the access. Enumerated in bytes.
93		@param Address The physical address of the access.
94		@param Count The number of accesses to perform.
95		@param Buffer A pointer to the buffer of data.
96
97		@retval EFI_SUCCESS The function completed successfully.
98		@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
99		**/
100		EFI_STATUS
101		EFIAPI
102		PeiDefaultIoRead (
103		IN CONST EFI_PEI_SERVICES **PeiServices,
104		IN CONST EFI_PEI_CPU_IO_PPI *This,
105		IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
106		IN UINT64 Address,
107		IN UINTN Count,
108		IN OUT VOID *Buffer
109		)
110	0	{
111	0	return EFI_NOT_AVAILABLE_YET;
112	0	}
113
114		/**
115		IO-based write services.
116
117		This function is to perform the IO-base write service for the EFI_PEI_CPU_IO_PPI.
118		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
119		return EFI_NOT_YET_AVAILABLE.
120
121		@param PeiServices An indirect pointer to the PEI Services Table
122		published by the PEI Foundation.
123		@param This Pointer to local data for the interface.
124		@param Width The width of the access. Enumerated in bytes.
125		@param Address The physical address of the access.
126		@param Count The number of accesses to perform.
127		@param Buffer A pointer to the buffer of data.
128
129		@retval EFI_SUCCESS The function completed successfully.
130		@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
131		**/
132		EFI_STATUS
133		EFIAPI
134		PeiDefaultIoWrite (
135		IN CONST EFI_PEI_SERVICES **PeiServices,
136		IN CONST EFI_PEI_CPU_IO_PPI *This,
137		IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
138		IN UINT64 Address,
139		IN UINTN Count,
140		IN OUT VOID *Buffer
141		)
142	0	{
143	0	return EFI_NOT_AVAILABLE_YET;
144	0	}
145
146		/**
147		8-bit I/O read operations.
148
149		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
150		return 0.
151
152		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
153		@param This Pointer to local data for the interface.
154		@param Address The physical address of the access.
155
156		@return An 8-bit value returned from the I/O space.
157		**/
158		UINT8
159		EFIAPI
160		PeiDefaultIoRead8 (
161		IN CONST EFI_PEI_SERVICES **PeiServices,
162		IN CONST EFI_PEI_CPU_IO_PPI *This,
163		IN UINT64 Address
164		)
165	0	{
166	0	return 0;
167	0	}
168
169		/**
170		Reads an 16-bit I/O port.
171
172		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
173		return 0.
174
175		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
176		@param This Pointer to local data for the interface.
177		@param Address The physical address of the access.
178
179		@return A 16-bit value returned from the I/O space.
180		**/
181		UINT16
182		EFIAPI
183		PeiDefaultIoRead16 (
184		IN CONST EFI_PEI_SERVICES **PeiServices,
185		IN CONST EFI_PEI_CPU_IO_PPI *This,
186		IN UINT64 Address
187		)
188	0	{
189	0	return 0;
190	0	}
191
192		/**
193		Reads an 32-bit I/O port.
194
195		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
196		return 0.
197
198		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
199		@param This Pointer to local data for the interface.
200		@param Address The physical address of the access.
201
202		@return A 32-bit value returned from the I/O space.
203		**/
204		UINT32
205		EFIAPI
206		PeiDefaultIoRead32 (
207		IN CONST EFI_PEI_SERVICES **PeiServices,
208		IN CONST EFI_PEI_CPU_IO_PPI *This,
209		IN UINT64 Address
210		)
211	0	{
212	0	return 0;
213	0	}
214
215		/**
216		Reads an 64-bit I/O port.
217
218		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
219		return 0.
220
221		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
222		@param This Pointer to local data for the interface.
223		@param Address The physical address of the access.
224
225		@return A 64-bit value returned from the I/O space.
226		**/
227		UINT64
228		EFIAPI
229		PeiDefaultIoRead64 (
230		IN CONST EFI_PEI_SERVICES **PeiServices,
231		IN CONST EFI_PEI_CPU_IO_PPI *This,
232		IN UINT64 Address
233		)
234	0	{
235	0	return 0;
236	0	}
237
238		/**
239		8-bit I/O write operations.
240		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
241		nothing.
242
243		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
244		@param This Pointer to local data for the interface.
245		@param Address The physical address of the access.
246		@param Data The data to write.
247		**/
248		VOID
249		EFIAPI
250		PeiDefaultIoWrite8 (
251		IN CONST EFI_PEI_SERVICES **PeiServices,
252		IN CONST EFI_PEI_CPU_IO_PPI *This,
253		IN UINT64 Address,
254		IN UINT8 Data
255		)
256	0	{
257	0	}
258
259		/**
260		16-bit I/O write operations.
261		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
262		nothing.
263
264		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
265		@param This Pointer to local data for the interface.
266		@param Address The physical address of the access.
267		@param Data The data to write.
268		**/
269		VOID
270		EFIAPI
271		PeiDefaultIoWrite16 (
272		IN CONST EFI_PEI_SERVICES **PeiServices,
273		IN CONST EFI_PEI_CPU_IO_PPI *This,
274		IN UINT64 Address,
275		IN UINT16 Data
276		)
277	0	{
278	0	}
279
280		/**
281		32-bit I/O write operations.
282		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
283		nothing.
284
285		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
286		@param This Pointer to local data for the interface.
287		@param Address The physical address of the access.
288		@param Data The data to write.
289		**/
290		VOID
291		EFIAPI
292		PeiDefaultIoWrite32 (
293		IN CONST EFI_PEI_SERVICES **PeiServices,
294		IN CONST EFI_PEI_CPU_IO_PPI *This,
295		IN UINT64 Address,
296		IN UINT32 Data
297		)
298	0	{
299	0	}
300
301		/**
302		64-bit I/O write operations.
303		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
304		nothing.
305
306		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
307		@param This Pointer to local data for the interface.
308		@param Address The physical address of the access.
309		@param Data The data to write.
310		**/
311		VOID
312		EFIAPI
313		PeiDefaultIoWrite64 (
314		IN CONST EFI_PEI_SERVICES **PeiServices,
315		IN CONST EFI_PEI_CPU_IO_PPI *This,
316		IN UINT64 Address,
317		IN UINT64 Data
318		)
319	0	{
320	0	}
321
322		/**
323		8-bit memory read operations.
324
325		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
326		return 0.
327
328		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
329		@param This Pointer to local data for the interface.
330		@param Address The physical address of the access.
331
332		@return An 8-bit value returned from the memory space.
333
334		**/
335		UINT8
336		EFIAPI
337		PeiDefaultMemRead8 (
338		IN CONST EFI_PEI_SERVICES **PeiServices,
339		IN CONST EFI_PEI_CPU_IO_PPI *This,
340		IN UINT64 Address
341		)
342	0	{
343	0	return 0;
344	0	}
345
346		/**
347		16-bit memory read operations.
348
349		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
350		return 0.
351
352		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
353		@param This Pointer to local data for the interface.
354		@param Address The physical address of the access.
355
356		@return An 16-bit value returned from the memory space.
357
358		**/
359		UINT16
360		EFIAPI
361		PeiDefaultMemRead16 (
362		IN CONST EFI_PEI_SERVICES **PeiServices,
363		IN CONST EFI_PEI_CPU_IO_PPI *This,
364		IN UINT64 Address
365		)
366	0	{
367	0	return 0;
368	0	}
369
370		/**
371		32-bit memory read operations.
372
373		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
374		return 0.
375
376		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
377		@param This Pointer to local data for the interface.
378		@param Address The physical address of the access.
379
380		@return An 32-bit value returned from the memory space.
381
382		**/
383		UINT32
384		EFIAPI
385		PeiDefaultMemRead32 (
386		IN CONST EFI_PEI_SERVICES **PeiServices,
387		IN CONST EFI_PEI_CPU_IO_PPI *This,
388		IN UINT64 Address
389		)
390	0	{
391	0	return 0;
392	0	}
393
394		/**
395		64-bit memory read operations.
396
397		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
398		return 0.
399
400		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
401		@param This Pointer to local data for the interface.
402		@param Address The physical address of the access.
403
404		@return An 64-bit value returned from the memory space.
405
406		**/
407		UINT64
408		EFIAPI
409		PeiDefaultMemRead64 (
410		IN CONST EFI_PEI_SERVICES **PeiServices,
411		IN CONST EFI_PEI_CPU_IO_PPI *This,
412		IN UINT64 Address
413		)
414	0	{
415	0	return 0;
416	0	}
417
418		/**
419		8-bit memory write operations.
420		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
421		nothing.
422
423		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
424		@param This Pointer to local data for the interface.
425		@param Address The physical address of the access.
426		@param Data The data to write.
427
428		**/
429		VOID
430		EFIAPI
431		PeiDefaultMemWrite8 (
432		IN CONST EFI_PEI_SERVICES **PeiServices,
433		IN CONST EFI_PEI_CPU_IO_PPI *This,
434		IN UINT64 Address,
435		IN UINT8 Data
436		)
437	0	{
438	0	}
439
440		/**
441		16-bit memory write operations.
442		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
443		nothing.
444
445		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
446		@param This Pointer to local data for the interface.
447		@param Address The physical address of the access.
448		@param Data The data to write.
449
450		**/
451		VOID
452		EFIAPI
453		PeiDefaultMemWrite16 (
454		IN CONST EFI_PEI_SERVICES **PeiServices,
455		IN CONST EFI_PEI_CPU_IO_PPI *This,
456		IN UINT64 Address,
457		IN UINT16 Data
458		)
459	0	{
460	0	}
461
462		/**
463		32-bit memory write operations.
464		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
465		nothing.
466
467		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
468		@param This Pointer to local data for the interface.
469		@param Address The physical address of the access.
470		@param Data The data to write.
471
472		**/
473		VOID
474		EFIAPI
475		PeiDefaultMemWrite32 (
476		IN CONST EFI_PEI_SERVICES **PeiServices,
477		IN CONST EFI_PEI_CPU_IO_PPI *This,
478		IN UINT64 Address,
479		IN UINT32 Data
480		)
481	0	{
482	0	}
483
484		/**
485		64-bit memory write operations.
486		If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
487		nothing.
488
489		@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
490		@param This Pointer to local data for the interface.
491		@param Address The physical address of the access.
492		@param Data The data to write.
493
494		**/
495		VOID
496		EFIAPI
497		PeiDefaultMemWrite64 (
498		IN CONST EFI_PEI_SERVICES **PeiServices,
499		IN CONST EFI_PEI_CPU_IO_PPI *This,
500		IN UINT64 Address,
501		IN UINT64 Data
502		)
503	0	{
504	0	}
505
506		///
507		/// This default instance of EFI_PEI_CPU_IO_PPI install assigned to EFI_PEI_SERVICE.CpuIo
508		/// when PeiCore's initialization.
509		///
510		EFI_PEI_CPU_IO_PPI mPeiDefaultCpuIoPpi = {
511		{
512		PeiDefaultMemRead,
513		PeiDefaultMemWrite
514		},
515		{
516		PeiDefaultIoRead,
517		PeiDefaultIoWrite
518		},
519		PeiDefaultIoRead8,
520		PeiDefaultIoRead16,
521		PeiDefaultIoRead32,
522		PeiDefaultIoRead64,
523		PeiDefaultIoWrite8,
524		PeiDefaultIoWrite16,
525		PeiDefaultIoWrite32,
526		PeiDefaultIoWrite64,
527		PeiDefaultMemRead8,
528		PeiDefaultMemRead16,
529		PeiDefaultMemRead32,
530		PeiDefaultMemRead64,
531		PeiDefaultMemWrite8,
532		PeiDefaultMemWrite16,
533		PeiDefaultMemWrite32,
534		PeiDefaultMemWrite64
535		};