MdeModulePkg/Universal/Acpi/AcpiPlatformDxe/AcpiPlatformDxe.inf\r
MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf\r
MdeModulePkg/Universal/HiiResourcesSampleDxe/HiiResourcesSampleDxe.inf\r
+ MdeModulePkg/Universal/LegacyRegion2Dxe/LegacyRegion2Dxe.inf\r
\r
[Components.IA32, Components.X64]\r
MdeModulePkg/Universal/DebugSupportDxe/DebugSupportDxe.inf\r
--- /dev/null
+/** @file\r
+ Dummy implementation of Legacy Region 2 Protocol.\r
+\r
+ This generic implementation of the Legacy Region 2 Protocol does not actually \r
+ perform any lock/unlock operations. This module may be used on platforms \r
+ that do not provide HW locking of the legacy memory regions. It can also \r
+ be used as a template driver for implementing the Legacy Region 2 Protocol on\r
+ a platform that does support HW locking of the legacy memory regions.\r
+\r
+Copyright (c) 2009, Intel Corporation\r
+All rights reserved. This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <LegacyRegion2.h>\r
+\r
+EFI_HANDLE mLegacyRegion2Handle = NULL;\r
+\r
+EFI_LEGACY_REGION2_PROTOCOL mLegacyRegion2 = {\r
+ LegacyRegion2Decode,\r
+ LegacyRegion2Lock,\r
+ LegacyRegion2BootLock,\r
+ LegacyRegion2Unlock,\r
+ LegacyRegionGetInfo\r
+};\r
+\r
+/**\r
+ Modify the hardware to allow (decode) or disallow (not decode) memory reads in a region.\r
+\r
+ If the On parameter evaluates to TRUE, this function enables memory reads in the address range \r
+ Start to (Start + Length - 1).\r
+ If the On parameter evaluates to FALSE, this function disables memory reads in the address range \r
+ Start to (Start + Length - 1).\r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose attributes\r
+ should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address\r
+ was not aligned to a region's starting address or if the length\r
+ was greater than the number of bytes in the first region.\r
+ @param On[in] Decode / Non-Decode flag.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Decode (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity,\r
+ IN BOOLEAN *On\r
+ )\r
+{\r
+ ASSERT (Granularity != NULL);\r
+ *Granularity = 0;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Modify the hardware to disallow memory writes in a region.\r
+\r
+ This function changes the attributes of a memory range to not allow writes.\r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose\r
+ attributes should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address was\r
+ not aligned to a region's starting address or if the length was\r
+ greater than the number of bytes in the first region.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Lock (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity\r
+ )\r
+{\r
+ ASSERT (Granularity != NULL);\r
+ *Granularity = 0;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Modify the hardware to disallow memory attribute changes in a region.\r
+\r
+ This function makes the attributes of a region read only. Once a region is boot-locked with this \r
+ function, the read and write attributes of that region cannot be changed until a power cycle has\r
+ reset the boot-lock attribute. Calls to Decode(), Lock() and Unlock() will have no effect.\r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose\r
+ attributes should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address was\r
+ not aligned to a region's starting address or if the length was\r
+ greater than the number of bytes in the first region.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+ @retval EFI_UNSUPPORTED The chipset does not support locking the configuration registers in\r
+ a way that will not affect memory regions outside the legacy memory\r
+ region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2BootLock (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity\r
+ )\r
+{\r
+ ASSERT (Granularity != NULL);\r
+ *Granularity = 0;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Modify the hardware to allow memory writes in a region.\r
+\r
+ This function changes the attributes of a memory range to allow writes. \r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose\r
+ attributes should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address was\r
+ not aligned to a region's starting address or if the length was\r
+ greater than the number of bytes in the first region.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Unlock (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity\r
+ )\r
+{\r
+ ASSERT (Granularity != NULL);\r
+ *Granularity = 0;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Get region information for the attributes of the Legacy Region.\r
+\r
+ This function is used to discover the granularity of the attributes for the memory in the legacy \r
+ region. Each attribute may have a different granularity and the granularity may not be the same\r
+ for all memory ranges in the legacy region. \r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param DescriptorCount[out] The number of region descriptor entries returned in the Descriptor\r
+ buffer.\r
+ @param Descriptor[out] A pointer to a pointer used to return a buffer where the legacy\r
+ region information is deposited. This buffer will contain a list of\r
+ DescriptorCount number of region descriptors. This function will\r
+ provide the memory for the buffer.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegionGetInfo (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ OUT UINT32 *DescriptorCount,\r
+ OUT EFI_LEGACY_REGION_DESCRIPTOR **Descriptor\r
+ )\r
+{\r
+ ASSERT (DescriptorCount != NULL);\r
+ ASSERT (Descriptor != NULL);\r
+\r
+ *DescriptorCount = 0;\r
+ *Descriptor = NULL;\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ The user Entry Point for module LegacyRegionDxe. The user code starts with this function.\r
+\r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image. \r
+ @param[in] SystemTable A pointer to the EFI System Table.\r
+ \r
+ @retval EFI_SUCCESS The entry point is executed successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Install (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ \r
+ //\r
+ // Make sure the Legacy Region 2 Protocol is not already installed in the system\r
+ //\r
+ ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiLegacyRegion2ProtocolGuid);\r
+ \r
+ //\r
+ // Install the protocol on a new handle.\r
+ //\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &mLegacyRegion2Handle,\r
+ &gEfiLegacyRegion2ProtocolGuid, &mLegacyRegion2,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
--- /dev/null
+/** @file\r
+ Internal include file for the dummy Legacy Region 2 Protocol implementation.\r
+\r
+Copyright (c) 2009, Intel Corporation\r
+All rights reserved. This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef __DUMMY_LEGACY_REGION2_H__\r
+#define __DUMMY_LEGACY_REGION2_H__\r
+\r
+#include <Protocol/LegacyRegion2.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+\r
+/**\r
+ Modify the hardware to allow (decode) or disallow (not decode) memory reads in a region.\r
+\r
+ If the On parameter evaluates to TRUE, this function enables memory reads in the address range \r
+ Start to (Start + Length - 1).\r
+ If the On parameter evaluates to FALSE, this function disables memory reads in the address range \r
+ Start to (Start + Length - 1).\r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose attributes\r
+ should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address\r
+ was not aligned to a region's starting address or if the length\r
+ was greater than the number of bytes in the first region.\r
+ @param On[in] Decode / Non-Decode flag.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Decode (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity,\r
+ IN BOOLEAN *On\r
+ );\r
+\r
+/**\r
+ Modify the hardware to disallow memory writes in a region.\r
+\r
+ This function changes the attributes of a memory range to not allow writes.\r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose\r
+ attributes should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address was\r
+ not aligned to a region's starting address or if the length was\r
+ greater than the number of bytes in the first region.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Lock (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity\r
+ );\r
+\r
+/**\r
+ Modify the hardware to disallow memory attribute changes in a region.\r
+\r
+ This function makes the attributes of a region read only. Once a region is boot-locked with this \r
+ function, the read and write attributes of that region cannot be changed until a power cycle has\r
+ reset the boot-lock attribute. Calls to Decode(), Lock() and Unlock() will have no effect.\r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose\r
+ attributes should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address was\r
+ not aligned to a region's starting address or if the length was\r
+ greater than the number of bytes in the first region.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+ @retval EFI_UNSUPPORTED The chipset does not support locking the configuration registers in\r
+ a way that will not affect memory regions outside the legacy memory\r
+ region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2BootLock (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity\r
+ );\r
+\r
+/**\r
+ Modify the hardware to allow memory writes in a region.\r
+\r
+ This function changes the attributes of a memory range to allow writes. \r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param Start[in] The beginning of the physical address of the region whose\r
+ attributes should be modified.\r
+ @param Length[in] The number of bytes of memory whose attributes should be modified.\r
+ The actual number of bytes modified may be greater than the number\r
+ specified.\r
+ @param Granularity[out] The number of bytes in the last region affected. This may be less\r
+ than the total number of bytes affected if the starting address was\r
+ not aligned to a region's starting address or if the length was\r
+ greater than the number of bytes in the first region.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegion2Unlock (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ IN UINT32 Start,\r
+ IN UINT32 Length,\r
+ OUT UINT32 *Granularity\r
+ );\r
+\r
+/**\r
+ Get region information for the attributes of the Legacy Region.\r
+\r
+ This function is used to discover the granularity of the attributes for the memory in the legacy \r
+ region. Each attribute may have a different granularity and the granularity may not be the same\r
+ for all memory ranges in the legacy region. \r
+\r
+ @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.\r
+ @param DescriptorCount[out] The number of region descriptor entries returned in the Descriptor\r
+ buffer.\r
+ @param Descriptor[out] A pointer to a pointer used to return a buffer where the legacy\r
+ region information is deposited. This buffer will contain a list of\r
+ DescriptorCount number of region descriptors. This function will\r
+ provide the memory for the buffer.\r
+\r
+ @retval EFI_SUCCESS The region's attributes were successfully modified.\r
+ @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LegacyRegionGetInfo (\r
+ IN EFI_LEGACY_REGION2_PROTOCOL *This,\r
+ OUT UINT32 *DescriptorCount,\r
+ OUT EFI_LEGACY_REGION_DESCRIPTOR **Descriptor\r
+ );\r
+\r
+#endif\r
--- /dev/null
+#/** @file\r
+# Produces the Legacy Region 2 Protocol.\r
+#\r
+# This generic implementation of the Legacy Region 2 Protocol does not actually \r
+# perform any lock/unlock operations. This module may be used on platforms \r
+# that do not provide HW locking of the legacy memory regions. It can also \r
+# be used as a template driver for implementing the Legacy Region 2 Protocol on\r
+# a platform that does support HW locking of the legacy memory regions.\r
+#\r
+# Copyright (c) 2009, Intel Corporation\r
+# All rights reserved. This program and the accompanying materials\r
+# are licensed and made available under the terms and conditions of the BSD License\r
+# which accompanies this distribution. The full text of the license may be found at\r
+# http://opensource.org/licenses/bsd-license.php\r
+# \r
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+#\r
+#**/\r
+\r
+[Defines]\r
+ INF_VERSION = 0x00010005\r
+ BASE_NAME = LegacyRegion2Dxe\r
+ FILE_GUID = EC2BEECA-E84A-445B-869B-F7A73C96F58A\r
+ MODULE_TYPE = DXE_DRIVER\r
+ ENTRY_POINT = LegacyRegion2Install\r
+\r
+#\r
+# The following information is for reference only and not required by the build tools.\r
+#\r
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC\r
+#\r
+\r
+[Sources]\r
+ LegacyRegion2.c\r
+ LegacyRegion2.h\r
+\r
+[Packages]\r
+ MdePkg/MdePkg.dec\r
+ MdeModulePkg/MdeModulePkg.dec\r
+\r
+[LibraryClasses]\r
+ UefiDriverEntryPoint\r
+ DebugLib\r
+ UefiBootServicesTableLib\r
+\r
+[Protocols]\r
+ gEfiLegacyRegion2ProtocolGuid ## PRODUCES\r
+\r
+[Depex]\r
+ TRUE\r
projects / mirror_edk2.git / commitdiff