X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FCore%2FPiSmmCore%2FPiSmmCore.c;h=a7467aca201229dfb9511540ec7f02641e285945;hp=852f8b90f687d0426a870daa96929a92d2cc68cb;hb=e63da9f033274843163908ccefa95c892d7944e5;hpb=53ec4d7f98a6af8b00c891c3f13791967e52b6a3
diff --git a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
index 852f8b90f6..a7467aca20 100644
--- a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
+++ b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
@@ -1,7 +1,7 @@
/** @file
SMM Core Main Entry Point
- Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.
+ Copyright (c) 2009 - 2017, 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
@@ -75,18 +75,23 @@ BOOLEAN mInLegacyBoot = FALSE;
// Table of SMI Handlers that are registered by the SMM Core when it is initialized
//
SMM_CORE_SMI_HANDLERS mSmmCoreSmiHandlers[] = {
- { SmmDriverDispatchHandler, &gEfiEventDxeDispatchGuid, NULL, TRUE },
- { SmmReadyToLockHandler, &gEfiDxeSmmReadyToLockProtocolGuid, NULL, TRUE },
- { SmmLegacyBootHandler, &gEfiEventLegacyBootGuid, NULL, FALSE },
- { SmmExitBootServicesHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },
- { SmmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },
- { SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, FALSE },
- { NULL, NULL, NULL, FALSE }
+ { SmmDriverDispatchHandler, &gEfiEventDxeDispatchGuid, NULL, TRUE },
+ { SmmReadyToLockHandler, &gEfiDxeSmmReadyToLockProtocolGuid, NULL, TRUE },
+ { SmmLegacyBootHandler, &gEfiEventLegacyBootGuid, NULL, FALSE },
+ { SmmExitBootServicesHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },
+ { SmmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },
+ { SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, TRUE },
+ { SmmEndOfS3ResumeHandler, &gEdkiiSmmEndOfS3ResumeProtocolGuid, NULL, FALSE },
+ { NULL, NULL, NULL, FALSE }
};
UINTN mFullSmramRangeCount;
EFI_SMRAM_DESCRIPTOR *mFullSmramRanges;
+EFI_SMM_DRIVER_ENTRY *mSmmCoreDriverEntry;
+
+EFI_LOADED_IMAGE_PROTOCOL *mSmmCoreLoadedImage;
+
/**
Place holder function until all the SMM System Table Service are available.
@@ -254,7 +259,7 @@ SmmReadyToBootHandler (
or if gEfiEventReadyToBootGuid is signalled. This function unregisters the
Software SMIs that are nor required after SMRAM is locked and installs the
SMM Ready To Lock Protocol so SMM Drivers are informed that SMRAM is about
- to be locked. It also verifies the the SMM CPU I/O 2 Protocol has been installed
+ to be locked. It also verifies the SMM CPU I/O 2 Protocol has been installed
and NULLs gBS and gST because they can not longer be used after SMRAM is locked.
@param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
@@ -378,6 +383,91 @@ SmmEndOfDxeHandler (
return Status;
}
+/**
+ Software SMI handler that is called when the EndOfS3Resume event is trigged.
+ This function installs the SMM EndOfS3Resume Protocol so SMM Drivers are informed that
+ S3 resume has finished.
+
+ @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
+ @param Context Points to an optional handler context which was specified when the handler was registered.
+ @param CommBuffer A pointer to a collection of data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param CommBufferSize The size of the CommBuffer.
+
+ @return Status Code
+
+**/
+EFI_STATUS
+EFIAPI
+SmmEndOfS3ResumeHandler (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *Context, OPTIONAL
+ IN OUT VOID *CommBuffer, OPTIONAL
+ IN OUT UINTN *CommBufferSize OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE SmmHandle;
+
+ DEBUG ((EFI_D_INFO, "SmmEndOfS3ResumeHandler\n"));
+
+ //
+ // Install SMM EndOfS3Resume protocol
+ //
+ SmmHandle = NULL;
+ Status = SmmInstallProtocolInterface (
+ &SmmHandle,
+ &gEdkiiSmmEndOfS3ResumeProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Uninstall the protocol here because the comsume just hook the
+ // installation event.
+ //
+ Status = SmmUninstallProtocolInterface (
+ SmmHandle,
+ &gEdkiiSmmEndOfS3ResumeProtocolGuid,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
+
+/**
+ Determine if two buffers overlap in memory.
+
+ @param[in] Buff1 Pointer to first buffer
+ @param[in] Size1 Size of Buff1
+ @param[in] Buff2 Pointer to second buffer
+ @param[in] Size2 Size of Buff2
+
+ @retval TRUE Buffers overlap in memory.
+ @retval FALSE Buffer doesn't overlap.
+
+**/
+BOOLEAN
+InternalIsBufferOverlapped (
+ IN UINT8 *Buff1,
+ IN UINTN Size1,
+ IN UINT8 *Buff2,
+ IN UINTN Size2
+ )
+{
+ //
+ // If buff1's end is less than the start of buff2, then it's ok.
+ // Also, if buff1's start is beyond buff2's end, then it's ok.
+ //
+ if (((Buff1 + Size1) <= Buff2) || (Buff1 >= (Buff2 + Size2))) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
/**
The main entry point to SMM Foundation.
@@ -396,19 +486,31 @@ SmmEntryPoint (
EFI_STATUS Status;
EFI_SMM_COMMUNICATE_HEADER *CommunicateHeader;
BOOLEAN InLegacyBoot;
+ BOOLEAN IsOverlapped;
+ VOID *CommunicationBuffer;
+ UINTN BufferSize;
PERF_START (NULL, "SMM", NULL, 0) ;
//
- // Update SMST using the context
+ // Update SMST with contents of the SmmEntryContext structure
//
- CopyMem (&gSmmCoreSmst.SmmStartupThisAp, SmmEntryContext, sizeof (EFI_SMM_ENTRY_CONTEXT));
+ gSmmCoreSmst.SmmStartupThisAp = SmmEntryContext->SmmStartupThisAp;
+ gSmmCoreSmst.CurrentlyExecutingCpu = SmmEntryContext->CurrentlyExecutingCpu;
+ gSmmCoreSmst.NumberOfCpus = SmmEntryContext->NumberOfCpus;
+ gSmmCoreSmst.CpuSaveStateSize = SmmEntryContext->CpuSaveStateSize;
+ gSmmCoreSmst.CpuSaveState = SmmEntryContext->CpuSaveState;
//
// Call platform hook before Smm Dispatch
//
PlatformHookBeforeSmmDispatch ();
+ //
+ // Call memory management hook function
+ //
+ SmmEntryPointMemoryManagementHook ();
+
//
// If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed
//
@@ -423,30 +525,40 @@ SmmEntryPoint (
// Check to see if this is a Synchronous SMI sent through the SMM Communication
// Protocol or an Asynchronous SMI
//
- if (gSmmCorePrivate->CommunicationBuffer != NULL) {
+ CommunicationBuffer = gSmmCorePrivate->CommunicationBuffer;
+ BufferSize = gSmmCorePrivate->BufferSize;
+ if (CommunicationBuffer != NULL) {
//
// Synchronous SMI for SMM Core or request from Communicate protocol
//
- if (!SmmIsBufferOutsideSmmValid ((UINTN)gSmmCorePrivate->CommunicationBuffer, gSmmCorePrivate->BufferSize)) {
+ IsOverlapped = InternalIsBufferOverlapped (
+ (UINT8 *) CommunicationBuffer,
+ BufferSize,
+ (UINT8 *) gSmmCorePrivate,
+ sizeof (*gSmmCorePrivate)
+ );
+ if (!SmmIsBufferOutsideSmmValid ((UINTN)CommunicationBuffer, BufferSize) || IsOverlapped) {
//
- // If CommunicationBuffer is not in valid address scope, return EFI_INVALID_PARAMETER
+ // If CommunicationBuffer is not in valid address scope,
+ // or there is overlap between gSmmCorePrivate and CommunicationBuffer,
+ // return EFI_INVALID_PARAMETER
//
gSmmCorePrivate->CommunicationBuffer = NULL;
gSmmCorePrivate->ReturnStatus = EFI_INVALID_PARAMETER;
} else {
- CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)gSmmCorePrivate->CommunicationBuffer;
- gSmmCorePrivate->BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
+ CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)CommunicationBuffer;
+ BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
Status = SmiManage (
&CommunicateHeader->HeaderGuid,
NULL,
CommunicateHeader->Data,
- &gSmmCorePrivate->BufferSize
+ &BufferSize
);
//
// Update CommunicationBuffer, BufferSize and ReturnStatus
// Communicate service finished, reset the pointer to CommBuffer to NULL
//
- gSmmCorePrivate->BufferSize += OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
+ gSmmCorePrivate->BufferSize = BufferSize + OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
gSmmCorePrivate->CommunicationBuffer = NULL;
gSmmCorePrivate->ReturnStatus = (Status == EFI_SUCCESS) ? EFI_SUCCESS : EFI_NOT_FOUND;
}
@@ -476,6 +588,87 @@ SmmEntryPoint (
PERF_END (NULL, "SMM", NULL, 0) ;
}
+/**
+ Install LoadedImage protocol for SMM Core.
+**/
+VOID
+SmmCoreInstallLoadedImage (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+
+ //
+ // Allocate a Loaded Image Protocol in EfiBootServicesData
+ //
+ Status = gBS->AllocatePool (EfiBootServicesData, sizeof(EFI_LOADED_IMAGE_PROTOCOL), (VOID **)&mSmmCoreLoadedImage);
+ ASSERT_EFI_ERROR (Status);
+
+ ZeroMem (mSmmCoreLoadedImage, sizeof (EFI_LOADED_IMAGE_PROTOCOL));
+ //
+ // Fill in the remaining fields of the Loaded Image Protocol instance.
+ // Note: ImageBase is an SMRAM address that can not be accessed outside of SMRAM if SMRAM window is closed.
+ //
+ mSmmCoreLoadedImage->Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;
+ mSmmCoreLoadedImage->ParentHandle = gSmmCorePrivate->SmmIplImageHandle;
+ mSmmCoreLoadedImage->SystemTable = gST;
+
+ mSmmCoreLoadedImage->ImageBase = (VOID *)(UINTN)gSmmCorePrivate->PiSmmCoreImageBase;
+ mSmmCoreLoadedImage->ImageSize = gSmmCorePrivate->PiSmmCoreImageSize;
+ mSmmCoreLoadedImage->ImageCodeType = EfiRuntimeServicesCode;
+ mSmmCoreLoadedImage->ImageDataType = EfiRuntimeServicesData;
+
+ //
+ // Create a new image handle in the UEFI handle database for the SMM Driver
+ //
+ Handle = NULL;
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEfiLoadedImageProtocolGuid, mSmmCoreLoadedImage,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Allocate a Loaded Image Protocol in SMM
+ //
+ Status = SmmAllocatePool (EfiRuntimeServicesData, sizeof(EFI_SMM_DRIVER_ENTRY), (VOID **)&mSmmCoreDriverEntry);
+ ASSERT_EFI_ERROR(Status);
+
+ ZeroMem (mSmmCoreDriverEntry, sizeof(EFI_SMM_DRIVER_ENTRY));
+ //
+ // Fill in the remaining fields of the Loaded Image Protocol instance.
+ //
+ mSmmCoreDriverEntry->Signature = EFI_SMM_DRIVER_ENTRY_SIGNATURE;
+ mSmmCoreDriverEntry->SmmLoadedImage.Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;
+ mSmmCoreDriverEntry->SmmLoadedImage.ParentHandle = gSmmCorePrivate->SmmIplImageHandle;
+ mSmmCoreDriverEntry->SmmLoadedImage.SystemTable = gST;
+
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageBase = (VOID *)(UINTN)gSmmCorePrivate->PiSmmCoreImageBase;
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageSize = gSmmCorePrivate->PiSmmCoreImageSize;
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageCodeType = EfiRuntimeServicesCode;
+ mSmmCoreDriverEntry->SmmLoadedImage.ImageDataType = EfiRuntimeServicesData;
+
+ mSmmCoreDriverEntry->ImageEntryPoint = gSmmCorePrivate->PiSmmCoreEntryPoint;
+ mSmmCoreDriverEntry->ImageBuffer = gSmmCorePrivate->PiSmmCoreImageBase;
+ mSmmCoreDriverEntry->NumberOfPage = EFI_SIZE_TO_PAGES((UINTN)gSmmCorePrivate->PiSmmCoreImageSize);
+
+ //
+ // Create a new image handle in the SMM handle database for the SMM Driver
+ //
+ mSmmCoreDriverEntry->SmmImageHandle = NULL;
+ Status = SmmInstallProtocolInterface (
+ &mSmmCoreDriverEntry->SmmImageHandle,
+ &gEfiLoadedImageProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mSmmCoreDriverEntry->SmmLoadedImage
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ return ;
+}
+
/**
The Entry Point for SMM Core
@@ -511,7 +704,7 @@ SmmMain (
//
gSmmCorePrivate->Smst = &gSmmCoreSmst;
gSmmCorePrivate->SmmEntryPoint = SmmEntryPoint;
-
+
//
// No need to initialize memory service.
// It is done in constructor of PiSmmCoreMemoryAllocationLib(),
@@ -523,10 +716,10 @@ SmmMain (
//
// Copy FullSmramRanges to SMRAM
//
- mFullSmramRangeCount = gSmmCorePrivate->FullSmramRangeCount;
+ mFullSmramRangeCount = gSmmCorePrivate->SmramRangeCount;
mFullSmramRanges = AllocatePool (mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));
ASSERT (mFullSmramRanges != NULL);
- CopyMem (mFullSmramRanges, gSmmCorePrivate->FullSmramRanges, mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));
+ CopyMem (mFullSmramRanges, gSmmCorePrivate->SmramRanges, mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));
//
// Register all SMI Handlers required by the SMM Core
@@ -541,6 +734,13 @@ SmmMain (
}
RegisterSmramProfileHandler ();
+ SmramProfileInstallProtocol ();
+
+ SmmCoreInstallLoadedImage ();
+
+ SmmCoreInitializeMemoryAttributesTable ();
+
+ SmmCoreInitializeSmiHandlerProfile ();
return EFI_SUCCESS;
}