diff options
| author | Guo Mang <mang.guo@intel.com> | 2017-04-27 11:05:07 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-04-27 11:05:07 +0800 |
| commit | c23f114d3cfbb29b8734b87213d1ec0de404197b (patch) | |
| tree | 4f3612573be055139a88213559212a40b7862fee /Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe | |
| parent | 001e57a103fce87245bfb7ae9c32ffb499a64135 (diff) | |
| download | edk2-platforms-c23f114d3cfbb29b8734b87213d1ec0de404197b.tar.xz | |
MdeModulePkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe')
4 files changed, 310 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.c b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.c new file mode 100644 index 0000000000..718c567346 --- /dev/null +++ b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.c @@ -0,0 +1,208 @@ +/** @file
+ This module sets default policy for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType.
+
+ This module sets EFI_MEMORY_XP for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType
+ in UEFI memory map, if and only of PropertiesTable is published and has BIT0 set.
+
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DxeServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Guid/EventGroup.h>
+#include <Guid/PropertiesTable.h>
+
+/**
+ Converts a number of EFI_PAGEs to a size in bytes.
+
+ NOTE: Do not use EFI_PAGES_TO_SIZE because it handles UINTN only.
+
+ @param Pages The number of EFI_PAGES.
+
+ @return The number of bytes associated with the number of EFI_PAGEs specified
+ by Pages.
+**/
+UINT64
+EfiPagesToSize (
+ IN UINT64 Pages
+ )
+{
+ return LShiftU64 (Pages, EFI_PAGE_SHIFT);
+}
+
+/**
+ Set memory attributes according to default policy.
+
+ @param MemoryMap A pointer to the buffer in which firmware places the current memory map.
+ @param MemoryMapSize Size, in bytes, of the MemoryMap buffer.
+ @param DescriptorSize size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.
+**/
+VOID
+SetMemorySpaceAttributesDefault (
+ IN EFI_MEMORY_DESCRIPTOR *MemoryMap,
+ IN UINTN MemoryMapSize,
+ IN UINTN DescriptorSize
+ )
+{
+ EFI_MEMORY_DESCRIPTOR *MemoryMapEntry;
+ EFI_MEMORY_DESCRIPTOR *MemoryMapEnd;
+ EFI_STATUS Status;
+
+ DEBUG ((EFI_D_INFO, "SetMemorySpaceAttributesDefault\n"));
+
+ MemoryMapEntry = MemoryMap;
+ MemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) MemoryMap + MemoryMapSize);
+ while ((UINTN)MemoryMapEntry < (UINTN)MemoryMapEnd) {
+ if (MemoryMapEntry->PhysicalStart < BASE_1MB) {
+ //
+ // Do not touch memory space below 1MB
+ //
+ MemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);
+ continue;
+ }
+ switch (MemoryMapEntry->Type) {
+ case EfiRuntimeServicesCode:
+ case EfiRuntimeServicesData:
+ //
+ // should be handled later;
+ //
+ break;
+ case EfiReservedMemoryType:
+ case EfiACPIMemoryNVS:
+ //
+ // Handle EfiReservedMemoryType and EfiACPIMemoryNVS, because there might be firmware executable there.
+ //
+ DEBUG ((EFI_D_INFO, "SetMemorySpaceAttributes - %016lx - %016lx (%016lx) ...\n",
+ MemoryMapEntry->PhysicalStart,
+ MemoryMapEntry->PhysicalStart + EfiPagesToSize (MemoryMapEntry->NumberOfPages),
+ MemoryMapEntry->Attribute
+ ));
+ Status = gDS->SetMemorySpaceCapabilities (
+ MemoryMapEntry->PhysicalStart,
+ EfiPagesToSize (MemoryMapEntry->NumberOfPages),
+ MemoryMapEntry->Attribute | EFI_MEMORY_XP
+ );
+ DEBUG ((EFI_D_INFO, "SetMemorySpaceCapabilities - %r\n", Status));
+ break;
+ }
+
+ MemoryMapEntry = NEXT_MEMORY_DESCRIPTOR (MemoryMapEntry, DescriptorSize);
+ }
+
+ return ;
+}
+
+/**
+ Update memory attributes according to default policy.
+
+ @param[in] Event The Event this notify function registered to.
+ @param[in] Context Pointer to the context data registered to the Event.
+**/
+VOID
+EFIAPI
+UpdateMemoryAttributesDefault (
+ EFI_EVENT Event,
+ VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ EFI_MEMORY_DESCRIPTOR *MemoryMap;
+ UINTN MemoryMapSize;
+ UINTN MapKey;
+ UINTN DescriptorSize;
+ UINT32 DescriptorVersion;
+ EFI_PROPERTIES_TABLE *PropertiesTable;
+
+ DEBUG ((EFI_D_INFO, "UpdateMemoryAttributesDefault\n"));
+ Status = EfiGetSystemConfigurationTable (&gEfiPropertiesTableGuid, (VOID **) &PropertiesTable);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ ASSERT (PropertiesTable != NULL);
+
+ DEBUG ((EFI_D_INFO, "MemoryProtectionAttribute - 0x%016lx\n", PropertiesTable->MemoryProtectionAttribute));
+ if ((PropertiesTable->MemoryProtectionAttribute & EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA) == 0) {
+ goto Done;
+ }
+
+ //
+ // Get the EFI memory map.
+ //
+ MemoryMapSize = 0;
+ MemoryMap = NULL;
+ Status = gBS->GetMemoryMap (
+ &MemoryMapSize,
+ MemoryMap,
+ &MapKey,
+ &DescriptorSize,
+ &DescriptorVersion
+ );
+ ASSERT (Status == EFI_BUFFER_TOO_SMALL);
+ do {
+ MemoryMap = (EFI_MEMORY_DESCRIPTOR *) AllocatePool (MemoryMapSize);
+ ASSERT (MemoryMap != NULL);
+ Status = gBS->GetMemoryMap (
+ &MemoryMapSize,
+ MemoryMap,
+ &MapKey,
+ &DescriptorSize,
+ &DescriptorVersion
+ );
+ if (EFI_ERROR (Status)) {
+ FreePool (MemoryMap);
+ }
+ } while (Status == EFI_BUFFER_TOO_SMALL);
+ ASSERT_EFI_ERROR (Status);
+
+ SetMemorySpaceAttributesDefault (MemoryMap, MemoryMapSize, DescriptorSize);
+
+Done:
+ gBS->CloseEvent (Event);
+
+ return ;
+}
+
+/**
+ The entrypoint of properties table attribute driver.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS It always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializePropertiesTableAttributesDxe (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT ReadyToBootEvent;
+
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ UpdateMemoryAttributesDefault,
+ NULL,
+ &gEfiEventReadyToBootGuid,
+ &ReadyToBootEvent
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
diff --git a/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.inf b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.inf new file mode 100644 index 0000000000..3f699f6b5a --- /dev/null +++ b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.inf @@ -0,0 +1,56 @@ +## @file
+# This module sets default policy for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType.
+#
+# This module sets EFI_MEMORY_XP for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType
+# in UEFI memory map, if and only of PropertiesTable is published and has BIT0 set.
+#
+# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PropertiesTableAttributesDxe
+ MODULE_UNI_FILE = PropertiesTableAttributesDxe.uni
+ FILE_GUID = AA48FBB2-9F87-4DFD-B416-575938F0C8F4
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = InitializePropertiesTableAttributesDxe
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources]
+ PropertiesTableAttributesDxe.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ UefiDriverEntryPoint
+ UefiBootServicesTableLib
+ DxeServicesTableLib
+ DebugLib
+ UefiLib
+ MemoryAllocationLib
+
+[Guids]
+ gEfiEventReadyToBootGuid ## CONSUMES ## Event
+ gEfiPropertiesTableGuid ## CONSUMES ## SystemTable
+
+[Depex]
+ TRUE
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ PropertiesTableAttributesDxeExtra.uni
diff --git a/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.uni b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.uni new file mode 100644 index 0000000000..9df097f7ce --- /dev/null +++ b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxe.uni @@ -0,0 +1,23 @@ +// /** @file
+// This module sets default policy for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType.
+//
+// This module sets EFI_MEMORY_XP for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType
+// in UEFI memory map, if and only of PropertiesTable is published and has BIT0 set.
+//
+// Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT #language en-US "This module sets default policy for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType."
+
+#string STR_MODULE_DESCRIPTION #language en-US "This module sets EFI_MEMORY_XP for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType in UEFI memory map, if and only of PropertiesTable is published and has BIT0 set."
+
diff --git a/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxeExtra.uni b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxeExtra.uni new file mode 100644 index 0000000000..e107e78523 --- /dev/null +++ b/Core/MdeModulePkg/Universal/PropertiesTableAttributesDxe/PropertiesTableAttributesDxeExtra.uni @@ -0,0 +1,23 @@ +// /** @file
+// This module sets default policy for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType.
+//
+// This module sets EFI_MEMORY_XP for attributes of EfiACPIMemoryNVS and EfiReservedMemoryType
+// in UEFI memory map, if and only of PropertiesTable is published and has BIT0 set.
+//
+// Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+// **/
+
+#string STR_PROPERTIES_MODULE_NAME
+#language en-US
+"PropertiesTable Attributes Setting DXE Driver"
+
+
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