[edk2-devel] [patch V3 01/29] MdePkg: Add RegisterFilterLib class and NULL instance
Dandan Bi
dandan.bi at intel.com
Fri Mar 26 07:23:18 UTC 2021
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3246
1. Add a new library class (RegisterFilterLib) to filter
and trace port IO/MMIO/MSR access.
2. Add a NULL instance (RegisterFilterLibNull) can be used
to keep current behavior.
Cc: Michael D Kinney <michael.d.kinney at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu at intel.com>
Signed-off-by: Dandan Bi <dandan.bi at intel.com>
Reviewed-by: Liming Gao <liming.gao at intel.com>
Reviewed-by: Abner Chang <abner.chang at hpe.com>
---
MdePkg/Include/Library/RegisterFilterLib.h | 243 ++++++++++++++++
.../RegisterFilterLibNull.c | 271 ++++++++++++++++++
.../RegisterFilterLibNull.inf | 23 ++
.../RegisterFilterLibNull.uni | 13 +
MdePkg/MdePkg.dec | 7 +-
MdePkg/MdePkg.dsc | 4 +-
6 files changed, 559 insertions(+), 2 deletions(-)
create mode 100644 MdePkg/Include/Library/RegisterFilterLib.h
create mode 100644 MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.c
create mode 100644 MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
create mode 100644 MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.uni
diff --git a/MdePkg/Include/Library/RegisterFilterLib.h b/MdePkg/Include/Library/RegisterFilterLib.h
new file mode 100644
index 0000000000..c4402da7d8
--- /dev/null
+++ b/MdePkg/Include/Library/RegisterFilterLib.h
@@ -0,0 +1,243 @@
+/** @file
+ Public include file for the Port IO/MMIO/MSR RegisterFilterLib.
+
+Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef REGISTER_FILTER_LIB_H_
+#define REGISTER_FILTER_LIB_H_
+
+typedef enum {
+ FilterWidth8,
+ FilterWidth16,
+ FilterWidth32,
+ FilterWidth64
+} FILTER_IO_WIDTH;
+
+/**
+ Filter IO read operation before read IO port.
+ It is used to filter IO read operation.
+
+ It will return the flag to decide whether require read real IO port.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The destination buffer to store the results.
+
+ @retval TRUE Need to excute the IO read.
+ @retval FALSE Skip the IO read.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN OUT VOID *Buffer
+ );
+
+/**
+ Trace IO read operation after read IO port.
+ It is used to trace IO operation.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The destination buffer to store the results.
+
+**/
+VOID
+EFIAPI
+FilterAfterIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ );
+/**
+ Filter IO Write operation before wirte IO port.
+ It is used to filter IO operation.
+
+ It will return the flag to decide whether require read write IO port.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The source buffer from which to BeforeWrite data.
+
+ @retval TRUE Need to excute the IO write.
+ @retval FALSE Skip the IO write.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ );
+
+ /**
+ Trace IO Write operation after wirte IO port.
+ It is used to trace IO operation.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The source buffer from which to BeforeWrite data.
+
+**/
+VOID
+EFIAPI
+FilterAfterIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ );
+
+/**
+ Filter memory IO before Read operation.
+
+ It will return the flag to decide whether require read real MMIO.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The destination buffer to store the results.
+
+ @retval TRUE Need to excute the MMIO read.
+ @retval FALSE Skip the MMIO read.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMmIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN OUT VOID *Buffer
+ );
+
+/**
+ Tracer memory IO after read operation
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The destination buffer to store the results.
+
+**/
+VOID
+EFIAPI
+FilterAfterMmIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ );
+
+/**
+ Filter memory IO before write operation
+
+ It will return the flag to decide whether require wirte real MMIO.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The source buffer from which to BeforeWrite data.
+
+ @retval TRUE Need to excute the MMIO write.
+ @retval FALSE Skip the MMIO write.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMmIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ );
+
+/**
+ Tracer memory IO after write operation
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The source buffer from which to BeforeWrite data.
+
+**/
+VOID
+EFIAPI
+FilterAfterMmIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ );
+
+/**
+ Filter MSR before read operation.
+
+ It will return the flag to decide whether require read real MSR.
+ It can be used for emulation environment.
+
+ @param Index The 8-bit Machine Specific Register index to BeforeWrite.
+ @param Value The 64-bit value to BeforeRead from the Machine Specific Register.
+
+ @retval TRUE Need to excute the MSR read.
+ @retval FALSE Skip the MSR read.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMsrRead (
+ IN UINT32 Index,
+ IN OUT UINT64 *Value
+ );
+
+/**
+ Trace MSR after read operation
+
+ @param Index The 8-bit Machine Specific Register index to BeforeWrite.
+ @param Value The 64-bit value to BeforeRead from the Machine Specific Register.
+
+**/
+VOID
+EFIAPI
+FilterAfterMsrRead (
+ IN UINT32 Index,
+ IN UINT64 *Value
+ );
+
+/**
+ Filter MSR before write operation
+
+ It will return the flag to decide whether require write real MSR.
+ It can be used for emulation environment.
+
+ @param Index The 8-bit Machine Specific Register index to BeforeWrite.
+ @param Value The 64-bit value to BeforeWrite to the Machine Specific Register.
+
+ @retval TRUE Need to excute the MSR write.
+ @retval FALSE Skip the MSR write.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMsrWrite (
+ IN UINT32 Index,
+ IN UINT64 *Value
+ );
+
+/**
+ Trace MSR after write operation
+
+ @param Index The 8-bit Machine Specific Register index to BeforeWrite.
+ @param Value The 64-bit value to BeforeWrite to the Machine Specific Register.
+
+**/
+VOID
+EFIAPI
+FilterAfterMsrWrite (
+ IN UINT32 Index,
+ IN UINT64 *Value
+ );
+
+#endif // REGISTER_FILTER_LIB_H_
diff --git a/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.c b/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.c
new file mode 100644
index 0000000000..7150f1ed5f
--- /dev/null
+++ b/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.c
@@ -0,0 +1,271 @@
+/** @file
+ Null instance of RegisterFilterLib.
+
+ Copyright (c) 2021 Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/RegisterFilterLib.h>
+
+/**
+ Filter IO read operation before read IO port.
+ It is used to filter IO read operation.
+
+ It will return the flag to decide whether require read real IO port.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in,out] Buffer The destination buffer to store the results.
+
+ @retval TRUE Need to excute the IO read.
+ @retval FALSE Skip the IO read.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN OUT VOID *Buffer
+ )
+{
+ return TRUE;
+}
+
+/**
+ Trace IO read operation after read IO port.
+ It is used to trace IO operation.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The destination buffer to store the results.
+
+**/
+VOID
+EFIAPI
+FilterAfterIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ )
+{
+ return;
+}
+
+/**
+ Filter IO Write operation before wirte IO port.
+ It is used to filter IO operation.
+
+ It will return the flag to decide whether require read write IO port.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The source buffer from which to write data.
+
+ @retval TRUE Need to excute the IO write.
+ @retval FALSE Skip the IO write.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ )
+{
+ return TRUE;
+}
+
+ /**
+ Trace IO Write operation after wirte IO port.
+ It is used to trace IO operation.
+
+ @param[in] Width Signifies the width of the I/O operation.
+ @param[in] Address The base address of the I/O operation.
+ @param[in] Buffer The source buffer from which to Write data.
+
+**/
+VOID
+EFIAPI
+FilterAfterIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ )
+{
+ return;
+}
+
+/**
+ Filter memory IO before Read operation.
+
+ It will return the flag to decide whether require read real MMIO.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in,out] Buffer The destination buffer to store the results.
+
+ @retval TRUE Need to excute the MMIO read.
+ @retval FALSE Skip the MMIO read.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMmIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN OUT VOID *Buffer
+ )
+{
+ return TRUE;
+}
+
+/**
+ Tracer memory IO after read operation.
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The destination buffer to store the results.
+
+**/
+VOID
+EFIAPI
+FilterAfterMmIoRead (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ )
+{
+ return;
+}
+
+/**
+ Filter memory IO before write operation.
+
+ It will return the flag to decide whether require wirte real MMIO.
+ It can be used for emulation environment.
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The source buffer from which to write data.
+
+ @retval TRUE Need to excute the MMIO write.
+ @retval FALSE Skip the MMIO write.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMmIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ )
+{
+ return TRUE;
+}
+
+/**
+ Tracer memory IO after write operation.
+
+ @param[in] Width Signifies the width of the memory I/O operation.
+ @param[in] Address The base address of the memory I/O operation.
+ @param[in] Buffer The source buffer from which to write data.
+
+**/
+VOID
+EFIAPI
+FilterAfterMmIoWrite (
+ IN FILTER_IO_WIDTH Width,
+ IN UINTN Address,
+ IN VOID *Buffer
+ )
+{
+ return;
+}
+
+/**
+ Filter MSR before read operation.
+
+ It will return the flag to decide whether require read real MSR.
+ It can be used for emulation environment.
+
+ @param Index The Register index of the MSR.
+ @param Value Point to the data will be read from the MSR.
+
+ @retval TRUE Need to excute the MSR read.
+ @retval FALSE Skip the MSR read.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMsrRead (
+ IN UINT32 Index,
+ IN OUT UINT64 *Value
+ )
+{
+ return TRUE;
+}
+
+/**
+ Trace MSR after read operation.
+
+ @param Index The Register index of the MSR.
+ @param Value Point to the data has been be read from the MSR.
+
+**/
+VOID
+EFIAPI
+FilterAfterMsrRead (
+ IN UINT32 Index,
+ IN UINT64 *Value
+ )
+{
+ return;
+}
+
+/**
+ Filter MSR before write operation.
+
+ It will return the flag to decide whether require write real MSR.
+ It can be used for emulation environment.
+
+ @param Index The Register index of the MSR.
+ @param Value Point to the data want to be written to the MSR.
+
+ @retval TRUE Need to excute the MSR write.
+ @retval FALSE Skip the MSR write.
+
+**/
+BOOLEAN
+EFIAPI
+FilterBeforeMsrWrite (
+ IN UINT32 Index,
+ IN UINT64 *Value
+ )
+{
+ return TRUE;
+}
+
+/**
+ Trace MSR after write operation.
+
+ @param Index The Register index of the MSR.
+ @param Value Point to the data has been be written to the MSR.
+
+**/
+VOID
+EFIAPI
+FilterAfterMsrWrite (
+ IN UINT32 Index,
+ IN UINT64 *Value
+ )
+{
+ return;
+}
+
diff --git a/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf b/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
new file mode 100644
index 0000000000..a7fc7497ed
--- /dev/null
+++ b/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
@@ -0,0 +1,23 @@
+## @file
+# Null instance of RegisterFilterLib.
+#
+# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = FilterLibNull
+ MODULE_UNI_FILE = FilterLibNull.uni
+ FILE_GUID = 9F555194-A410-4AD6-B3FC-53F6E10FA793
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = RegisterFilterLib
+
+[Sources]
+ RegisterFilterLibNull.c
+
+[Packages]
+ MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.uni b/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.uni
new file mode 100644
index 0000000000..ed64c7e63d
--- /dev/null
+++ b/MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.uni
@@ -0,0 +1,13 @@
+// /** @file
+// Null instance of RegisterFilterLib.
+//
+// Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT #language en-US "Null instance of RegisterFilterLib."
+#string STR_MODULE_DESCRIPTION #language en-US "Null instance of RegisterFilterLib."
+
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 1d2637acc2..65de5c4052 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -2,11 +2,11 @@
# This Package provides all definitions, library classes and libraries instances.
#
# It also provides the definitions(including PPIs/PROTOCOLs/GUIDs) of
# EFI1.10/UEFI2.7/PI1.7 and some Industry Standards.
#
-# Copyright (c) 2007 - 2020, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2021, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# (C) Copyright 2016 - 2020 Hewlett Packard Enterprise Development LP<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -260,10 +260,15 @@ [LibraryClasses]
## @libraryclass This library provides an interface to request non-MMRAM pages to be mapped
# or unblocked from inside MM environment.
#
MmUnblockMemoryLib|Include/Library/MmUnblockMemoryLib.h
+ ## @libraryclass This library provides interfances to filter and trace port IO/MMIO/MSR access.
+ #
+ #
+ RegisterFilterLib|Include/Library/RegisterFilterLib.h
+
[LibraryClasses.IA32, LibraryClasses.X64]
## @libraryclass Abstracts both S/W SMI generation and detection.
##
SmmLib|Include/Library/SmmLib.h
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index 79629e3f93..be89e28eef 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -1,9 +1,9 @@
## @file
# EFI/PI MdePkg Package
#
-# Copyright (c) 2007 - 2020, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2021, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -125,10 +125,12 @@ [Components]
MdePkg/Library/BaseExtractGuidedSectionLib/BaseExtractGuidedSectionLib.inf
MdePkg/Library/StandaloneMmDriverEntryPoint/StandaloneMmDriverEntryPoint.inf
MdePkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf
+ MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
+
[Components.IA32, Components.X64, Components.ARM, Components.AARCH64]
#
# Add UEFI Target Based Unit Tests
#
MdePkg/Test/UnitTest/Library/BaseLib/BaseLibUnitTestsUefi.inf
--
2.18.0.windows.1
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