diff options
Diffstat (limited to 'Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm')
| -rw-r--r-- | Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c | 114 | ||||
| -rw-r--r-- | Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.h | 30 | ||||
| -rw-r--r-- | Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.inf | 54 |
3 files changed, 198 insertions, 0 deletions
diff --git a/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c new file mode 100644 index 0000000000..74c1678bc8 --- /dev/null +++ b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c @@ -0,0 +1,114 @@ +/** @file
+ Acpi Smm driver.
+
+Copyright (c) 2017, 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 that 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 "AcpiSmm.h"
+
+/**
+ Enable SCI
+
+ @param[in] DispatchHandle - The handle of this callback, obtained when registering
+ @param[in] DispatchContext - Pointer to the EFI_SMM_SW_DISPATCH_CONTEXT
+ @param[in] CommBuffer - A pointer to a collection of data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param[in] CommBufferSize - The size of the CommBuffer.
+**/
+EFI_STATUS
+EFIAPI
+EnableAcpiCallback (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *DispatchContext,
+ IN OUT VOID *CommBuffer OPTIONAL,
+ IN OUT UINTN *CommBufferSize OPTIONAL
+ )
+{
+ BoardEnableAcpi (TRUE);
+ return EFI_SUCCESS;
+}
+
+/**
+ Disable SCI
+
+ @param[in] DispatchHandle - The handle of this callback, obtained when registering
+ @param[in] DispatchContext - Pointer to the EFI_SMM_SW_DISPATCH_CONTEXT
+ @param[in] CommBuffer - A pointer to a collection of data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param[in] CommBufferSize - The size of the CommBuffer.
+**/
+EFI_STATUS
+EFIAPI
+DisableAcpiCallback (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *DispatchContext,
+ IN OUT VOID *CommBuffer OPTIONAL,
+ IN UINTN *CommBufferSize OPTIONAL
+ )
+{
+ BoardDisableAcpi (TRUE);
+ return EFI_SUCCESS;
+}
+
+/**
+ Initializes the Acpi Smm Driver
+
+ @param[in] ImageHandle - Pointer to the loaded image protocol for this driver
+ @param[in] SystemTable - Pointer to the EFI System Table
+
+ @retval Status - EFI_SUCCESS
+ @retval Assert, otherwise.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeAcpiSmm (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE SwHandle;
+ EFI_SMM_SW_DISPATCH2_PROTOCOL *SwDispatch;
+ EFI_SMM_SW_REGISTER_CONTEXT SwContext;
+
+ //
+ // Locate the ICH SMM SW dispatch protocol
+ //
+ Status = gSmst->SmmLocateProtocol (&gEfiSmmSwDispatch2ProtocolGuid, NULL, (VOID**)&SwDispatch);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register ACPI enable SMI handler
+ //
+ SwContext.SwSmiInputValue = (UINTN) PcdGet8 (PcdAcpiEnableSwSmi);
+ Status = SwDispatch->Register (
+ SwDispatch,
+ EnableAcpiCallback,
+ &SwContext,
+ &SwHandle
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register ACPI disable SMI handler
+ //
+ SwContext.SwSmiInputValue = (UINTN) PcdGet8 (PcdAcpiDisableSwSmi);
+ Status = SwDispatch->Register (
+ SwDispatch,
+ DisableAcpiCallback,
+ &SwContext,
+ &SwHandle
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
diff --git a/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.h b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.h new file mode 100644 index 0000000000..a34d87250f --- /dev/null +++ b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.h @@ -0,0 +1,30 @@ +/** @file
+ Header file for the Smm platform driver.
+
+Copyright (c) 2017, 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 that 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.
+
+**/
+
+#ifndef _ACPI_SMM_H_
+#define _ACPI_SMM_H_
+
+#include <PiSmm.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/SmmServicesTableLib.h>
+#include <Library/BoardAcpiEnableLib.h>
+#include <Protocol/SmmSwDispatch2.h>
+
+#endif
+
diff --git a/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.inf b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.inf new file mode 100644 index 0000000000..e7f5d57494 --- /dev/null +++ b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.inf @@ -0,0 +1,54 @@ +### @file
+# Component information file for ACPI SMM module.
+#
+# Copyright (c) 2017, 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 = 0x00010017
+ BASE_NAME = AcpiSmm
+ FILE_GUID = DF9A9FFC-A075-4867-A0B2-5E7540BB023E
+ VERSION_STRING = 1.0
+ MODULE_TYPE = DXE_SMM_DRIVER
+ PI_SPECIFICATION_VERSION = 1.20
+ ENTRY_POINT = InitializeAcpiSmm
+
+[LibraryClasses]
+ UefiDriverEntryPoint
+ UefiBootServicesTableLib
+ DebugLib
+ HobLib
+ IoLib
+ PcdLib
+ UefiLib
+ SmmServicesTableLib
+ BoardAcpiEnableLib
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MinPlatformPkg/MinPlatformPkg.dec
+
+[Pcd]
+ gPlatformModuleTokenSpaceGuid.PcdAcpiEnableSwSmi ## CONSUMES
+ gPlatformModuleTokenSpaceGuid.PcdAcpiDisableSwSmi ## CONSUMES
+
+[Sources]
+ AcpiSmm.h
+ AcpiSmm.c
+
+[Protocols]
+ gEfiSmmSwDispatch2ProtocolGuid ## CONSUMES
+
+[Guids]
+
+[Depex]
+ gEfiSmmSwDispatch2ProtocolGuid
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