diff options
Diffstat (limited to 'MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c')
| -rw-r--r-- | MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c | 234 |
1 files changed, 143 insertions, 91 deletions
diff --git a/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c b/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c index e34ead59fa..651a9dea54 100644 --- a/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c +++ b/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c @@ -1,10 +1,10 @@ /** @file
This is the code for Boot Script Executer module.
- This driver is dispatched by Dxe core and the driver will reload itself to ACPI NVS memory
+ This driver is dispatched by Dxe core and the driver will reload itself to ACPI reserved memory
in the entry point. The functionality is to interpret and restore the S3 boot script
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, 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
@@ -22,6 +22,8 @@ EFI_GUID mBootScriptExecutorImageGuid = { 0x9a8d3433, 0x9fe8, 0x42b6, { 0x87, 0xb, 0x1e, 0x31, 0xc8, 0x4e, 0xbe, 0x3b }
};
+BOOLEAN mPage1GSupport = FALSE;
+
/**
Entry function of Boot script exector. This function will be executed in
S3 boot path.
@@ -205,6 +207,121 @@ S3BootScriptExecutorEntryFunction ( CpuDeadLoop();
return EFI_UNSUPPORTED;
}
+
+/**
+ This is the Event notification function to reload BootScriptExecutor image
+ to RESERVED mem and save it to LockBox.
+
+ @param Event Pointer to this event
+ @param Context Event hanlder private data
+ **/
+VOID
+EFIAPI
+ReadyToLockEventNotify (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ VOID *Interface;
+ UINT8 *Buffer;
+ UINTN BufferSize;
+ EFI_HANDLE NewImageHandle;
+ UINTN Pages;
+ EFI_PHYSICAL_ADDRESS FfsBuffer;
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
+
+ Status = gBS->LocateProtocol (&gEfiDxeSmmReadyToLockProtocolGuid, NULL, &Interface);
+ if (EFI_ERROR (Status)) {
+ return;
+ }
+
+ //
+ // A workaround: Here we install a dummy handle
+ //
+ NewImageHandle = NULL;
+ Status = gBS->InstallProtocolInterface (
+ &NewImageHandle,
+ &gEfiCallerIdGuid,
+ EFI_NATIVE_INTERFACE,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Reload BootScriptExecutor image itself to RESERVED mem
+ //
+ Status = GetSectionFromAnyFv (
+ &gEfiCallerIdGuid,
+ EFI_SECTION_PE32,
+ 0,
+ (VOID **) &Buffer,
+ &BufferSize
+ );
+ ASSERT_EFI_ERROR (Status);
+ ImageContext.Handle = Buffer;
+ ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;
+ //
+ // Get information about the image being loaded
+ //
+ Status = PeCoffLoaderGetImageInfo (&ImageContext);
+ ASSERT_EFI_ERROR (Status);
+ Pages = EFI_SIZE_TO_PAGES(BufferSize + ImageContext.SectionAlignment);
+ FfsBuffer = 0xFFFFFFFF;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiReservedMemoryType,
+ Pages,
+ &FfsBuffer
+ );
+ ASSERT_EFI_ERROR (Status);
+ ImageContext.ImageAddress = (PHYSICAL_ADDRESS)(UINTN)FfsBuffer;
+ //
+ // Align buffer on section boundry
+ //
+ ImageContext.ImageAddress += ImageContext.SectionAlignment - 1;
+ ImageContext.ImageAddress &= ~(ImageContext.SectionAlignment - 1);
+ //
+ // Load the image to our new buffer
+ //
+ Status = PeCoffLoaderLoadImage (&ImageContext);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Relocate the image in our new buffer
+ //
+ Status = PeCoffLoaderRelocateImage (&ImageContext);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Free the buffer allocated by ReadSection since the image has been relocated in the new buffer
+ //
+ gBS->FreePool (Buffer);
+
+ //
+ // Flush the instruction cache so the image data is written before we execute it
+ //
+ InvalidateInstructionCacheRange ((VOID *)(UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.ImageSize);
+ Status = ((EFI_IMAGE_ENTRY_POINT)(UINTN)(ImageContext.EntryPoint)) (NewImageHandle, gST);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Additional step for BootScript integrity
+ // Save BootScriptExecutor image
+ //
+ Status = SaveLockBox (
+ &mBootScriptExecutorImageGuid,
+ (VOID *)(UINTN)ImageContext.ImageAddress,
+ (UINTN)ImageContext.ImageSize
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = SetLockBoxAttributes (&mBootScriptExecutorImageGuid, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE);
+ ASSERT_EFI_ERROR (Status);
+
+ gBS->CloseEvent (Event);
+}
+
/**
Entrypoint of Boot script exector driver, this function will be executed in
normal boot phase and invoked by DXE dispatch.
@@ -222,16 +339,16 @@ BootScriptExecutorEntryPoint ( IN EFI_SYSTEM_TABLE *SystemTable
)
{
- UINT8 *Buffer;
UINTN BufferSize;
UINTN Pages;
- EFI_PHYSICAL_ADDRESS FfsBuffer;
- PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
BOOT_SCRIPT_EXECUTOR_VARIABLE *EfiBootScriptExecutorVariable;
EFI_PHYSICAL_ADDRESS BootScriptExecutorBuffer;
EFI_STATUS Status;
VOID *DevicePath;
- EFI_HANDLE NewImageHandle;
+ EFI_EVENT ReadyToLockEvent;
+ VOID *Registration;
+ UINT32 RegEax;
+ UINT32 RegEdx;
//
// Test if the gEfiCallerIdGuid of this image is already installed. if not, the entry
@@ -240,94 +357,32 @@ BootScriptExecutorEntryPoint ( //
Status = gBS->LocateProtocol (&gEfiCallerIdGuid, NULL, &DevicePath);
if (EFI_ERROR (Status)) {
-
- //
- // This is the first-time loaded by DXE core. reload itself to RESERVED mem
- //
- //
- // A workaround: Here we install a dummy handle
- //
- NewImageHandle = NULL;
- Status = gBS->InstallProtocolInterface (
- &NewImageHandle,
- &gEfiCallerIdGuid,
- EFI_NATIVE_INTERFACE,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- Status = GetSectionFromAnyFv (
- &gEfiCallerIdGuid,
- EFI_SECTION_PE32,
- 0,
- (VOID **) &Buffer,
- &BufferSize
- );
- ASSERT_EFI_ERROR (Status);
- ImageContext.Handle = Buffer;
- ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;
- //
- // Get information about the image being loaded
- //
- Status = PeCoffLoaderGetImageInfo (&ImageContext);
- ASSERT_EFI_ERROR (Status);
- Pages = EFI_SIZE_TO_PAGES(BufferSize + ImageContext.SectionAlignment);
- FfsBuffer = 0xFFFFFFFF;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiReservedMemoryType,
- Pages,
- &FfsBuffer
- );
- ASSERT_EFI_ERROR (Status);
- ImageContext.ImageAddress = (PHYSICAL_ADDRESS)(UINTN)FfsBuffer;
- //
- // Align buffer on section boundry
//
- ImageContext.ImageAddress += ImageContext.SectionAlignment - 1;
- ImageContext.ImageAddress &= ~(ImageContext.SectionAlignment - 1);
+ // Create ReadyToLock event to reload BootScriptExecutor image
+ // to RESERVED mem and save it to LockBox.
//
- // Load the image to our new buffer
- //
- Status = PeCoffLoaderLoadImage (&ImageContext);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Relocate the image in our new buffer
- //
- Status = PeCoffLoaderRelocateImage (&ImageContext);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Free the buffer allocated by ReadSection since the image has been relocated in the new buffer
- //
- gBS->FreePool (Buffer);
-
- //
- // Flush the instruction cache so the image data is written before we execute it
- //
- InvalidateInstructionCacheRange ((VOID *)(UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.ImageSize);
- Status = ((EFI_IMAGE_ENTRY_POINT)(UINTN)(ImageContext.EntryPoint)) (NewImageHandle, SystemTable);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Additional step for BootScript integrity
- // Save BootScriptExecutor image
- //
- Status = SaveLockBox (
- &mBootScriptExecutorImageGuid,
- (VOID *)(UINTN)ImageContext.ImageAddress,
- (UINTN)ImageContext.ImageSize
- );
- ASSERT_EFI_ERROR (Status);
-
- Status = SetLockBoxAttributes (&mBootScriptExecutorImageGuid, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE);
- ASSERT_EFI_ERROR (Status);
-
+ ReadyToLockEvent = EfiCreateProtocolNotifyEvent (
+ &gEfiDxeSmmReadyToLockProtocolGuid,
+ TPL_NOTIFY,
+ ReadyToLockEventNotify,
+ NULL,
+ &Registration
+ );
+ ASSERT (ReadyToLockEvent != NULL);
} else {
//
// the entry point is invoked after reloading. following code only run in RESERVED mem
//
+ if (PcdGetBool(PcdUse1GPageTable)) {
+ AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
+ if (RegEax >= 0x80000001) {
+ AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);
+ if ((RegEdx & BIT26) != 0) {
+ mPage1GSupport = TRUE;
+ }
+ }
+ }
+
BufferSize = sizeof (BOOT_SCRIPT_EXECUTOR_VARIABLE);
BootScriptExecutorBuffer = 0xFFFFFFFF;
@@ -363,11 +418,8 @@ BootScriptExecutorEntryPoint ( Status = SetLockBoxAttributes (&gEfiBootScriptExecutorContextGuid, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE);
ASSERT_EFI_ERROR (Status);
-
}
return EFI_SUCCESS;
}
-
-
|