diff options
3 files changed, 68 insertions, 30 deletions
diff --git a/EdkCompatibilityPkg/Compatibility/Include/Guid/SmmBaseThunkCommunication.h b/EdkCompatibilityPkg/Compatibility/Include/Guid/SmmBaseThunkCommunication.h index f8507e5..20c37ec 100644 --- a/EdkCompatibilityPkg/Compatibility/Include/Guid/SmmBaseThunkCommunication.h +++ b/EdkCompatibilityPkg/Compatibility/Include/Guid/SmmBaseThunkCommunication.h @@ -2,7 +2,7 @@ GUID and data structures for communication between SMM Base on SMM Base2 Thunk driver
and SmmBaseHelper driver.
- Copyright (c) 2009, Intel Corporation
+ Copyright (c) 2009 - 2010, Intel Corporation
All rights reserved. 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
@@ -49,12 +49,19 @@ typedef struct { VOID *Buffer;
} SMMBASE_FREE_POOL_ARG;
+typedef struct {
+ EFI_HANDLE ImageHandle;
+ VOID *CommunicationBuffer;
+ UINTN *SourceSize;
+} SMMBASE_COMMUNICATE_ARG;
+
typedef union {
SMMBASE_REGISTER_ARG Register;
SMMBASE_UNREGISTER_ARG UnRegister;
SMMBASE_REGISTER_CALLBACK_ARG RegisterCallback;
SMMBASE_ALLOCATE_POOL_ARG AllocatePool;
SMMBASE_FREE_POOL_ARG FreePool;
+ SMMBASE_COMMUNICATE_ARG Communicate;
} SMMBASE_FUNCTION_ARGS;
typedef enum {
@@ -63,6 +70,7 @@ typedef enum { SMMBASE_REGISTER_CALLBACK,
SMMBASE_ALLOCATE_POOL,
SMMBASE_FREE_POOL,
+ SMMBASE_COMMUNICATE,
} SMMBASE_FUNCTION;
typedef struct {
diff --git a/EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.c b/EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.c index 8a6214a..2a4437b 100644 --- a/EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.c +++ b/EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.c @@ -602,6 +602,49 @@ HelperFreePool ( FunctionData->Status = EFI_SUCCESS;
}
+/**
+ Thunk service of EFI_SMM_BASE_PROTOCOL.Communicate().
+
+ @param[in, out] FunctionData Pointer to SMMBASE_FUNCTION_DATA.
+**/
+VOID
+HelperCommunicate (
+ IN OUT SMMBASE_FUNCTION_DATA *FunctionData
+ )
+{
+ LIST_ENTRY *Node;
+ CALLBACK_INFO *CallbackInfo;
+
+ if (FunctionData->Args.Communicate.CommunicationBuffer == NULL) {
+ FunctionData->Status = EFI_INVALID_PARAMETER;
+ return;
+ }
+
+ Node = GetFirstNode (&mCallbackInfoListHead);
+ while (!IsNull (&mCallbackInfoListHead, Node)) {
+ CallbackInfo = (CALLBACK_INFO *)Node;
+
+ if (FunctionData->Args.Communicate.ImageHandle == CallbackInfo->SmmImageHandle) {
+ ///
+ /// Thunk into original Framwork SMI handler
+ ///
+ (CallbackInfo->CallbackAddress) (
+ CallbackInfo->SmmImageHandle,
+ FunctionData->Args.Communicate.CommunicationBuffer,
+ FunctionData->Args.Communicate.SourceSize
+ );
+ ///
+ /// The message was successfully posted.
+ ///
+ FunctionData->Status = EFI_SUCCESS;
+ return;
+ }
+ Node = GetNextNode (&mCallbackInfoListHead, Node);
+ }
+
+ FunctionData->Status = EFI_INVALID_PARAMETER;
+}
+
/**
Communication service SMI Handler entry.
@@ -654,6 +697,9 @@ SmmHandlerEntry ( case SMMBASE_FREE_POOL:
HelperFreePool (FunctionData);
break;
+ case SMMBASE_COMMUNICATE:
+ HelperCommunicate (FunctionData);
+ break;
default:
ASSERT (FALSE);
FunctionData->Status = EFI_UNSUPPORTED;
diff --git a/EdkCompatibilityPkg/Compatibility/SmmBaseOnSmmBase2Thunk/SmmBaseOnSmmBase2Thunk.c b/EdkCompatibilityPkg/Compatibility/SmmBaseOnSmmBase2Thunk/SmmBaseOnSmmBase2Thunk.c index 9421670..61e40cc 100644 --- a/EdkCompatibilityPkg/Compatibility/SmmBaseOnSmmBase2Thunk/SmmBaseOnSmmBase2Thunk.c +++ b/EdkCompatibilityPkg/Compatibility/SmmBaseOnSmmBase2Thunk/SmmBaseOnSmmBase2Thunk.c @@ -160,15 +160,10 @@ SmmBaseHelperService ( mCommunicationData.FunctionData.Status = EFI_UNSUPPORTED;
- if (IsInSmm()) {
+ if ((mCommunicationData.FunctionData.Function != SMMBASE_COMMUNICATE) && IsInSmm()) {
///
/// If in SMM mode, directly call services in SMM Base Helper.
///
- if (mSmmBaseHelperReady == NULL) {
- ASSERT (FALSE);
- return;
- }
-
DataSize = (UINTN)(sizeof (SMMBASE_FUNCTION_DATA));
mSmmBaseHelperReady->ServiceEntry (
NULL,
@@ -178,13 +173,8 @@ SmmBaseHelperService ( );
} else {
///
- /// If in non-SMM mode, call services in SMM Base Helper via SMM Communication Protocol.
+ /// Call services in SMM Base Helper via SMM Communication Protocol.
///
- if (mSmmCommunication == NULL) {
- ASSERT (FALSE);
- return;
- }
-
DataSize = (UINTN)(sizeof (mCommunicationData));
mSmmCommunication->Communicate (
mSmmCommunication,
@@ -291,16 +281,17 @@ SmmBaseCommunicate ( IN OUT UINTN *BufferSize
)
{
- if (mSmmCommunication == NULL) {
- ASSERT (FALSE);
- return EFI_UNSUPPORTED;
- }
+ ///
+ /// Note this is a runtime interface
+ ///
+
+ mCommunicationData.FunctionData.Function = SMMBASE_COMMUNICATE;
+ mCommunicationData.FunctionData.Args.Communicate.ImageHandle = ImageHandle;
+ mCommunicationData.FunctionData.Args.Communicate.CommunicationBuffer = CommunicationBuffer;
+ mCommunicationData.FunctionData.Args.Communicate.SourceSize = BufferSize;
- return mSmmCommunication->Communicate (
- mSmmCommunication,
- CommunicationBuffer,
- BufferSize
- );
+ SmmBaseHelperService ();
+ return mCommunicationData.FunctionData.Status;
}
/**
@@ -451,11 +442,6 @@ SmmBaseGetSmstLocation ( OUT EFI_SMM_SYSTEM_TABLE **Smst
)
{
- if (mSmmBaseHelperReady == NULL) {
- ASSERT (FALSE);
- return EFI_UNSUPPORTED;
- }
-
if (!IsInSmm ()) {
return EFI_UNSUPPORTED;
}
@@ -484,9 +470,7 @@ SmmBaseAddressChangeEvent ( IN VOID *Context
)
{
- if (mSmmCommunication != NULL) {
- EfiConvertPointer (0x0, (VOID **) &mSmmCommunication);
- }
+ EfiConvertPointer (0x0, (VOID **) &mSmmCommunication);
}
/**
|