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/*++
Copyright (c) 2006, 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
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.
Module Name:
CapsuleService.c
Abstract:
Capsule Runtime Service.
--*/
#include "CapsuleService.h"
STATIC EFI_GUID mEfiCapsuleHeaderGuid = EFI_CAPSULE_GUID;
EFI_STATUS
EFIAPI
UpdateCapsule (
IN UEFI_CAPSULE_HEADER **CapsuleHeaderArray,
IN UINTN CapsuleCount,
IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL
)
/*++
Routine Description:
This code finds whether the capsules need reset to update, if not, update immediately.
Arguments:
CapsuleHeaderArray A array of pointers to capsule headers passed in
CapsuleCount The number of capsule
ScatterGatherList Physical address of datablock list points to capsule
Returns:
EFI STATUS
EFI_SUCCESS Valid capsule was passed.If CAPSULE_FLAG_PERSIT_ACROSS_RESET is
not set, the capsule has been successfully processed by the firmware.
If it set, the ScattlerGatherList is successfully to be set.
EFI_INVALID_PARAMETER CapsuleCount is less than 1,CapsuleGuid is not supported.
EFI_DEVICE_ERROR Failed to SetVariable or AllocatePool or ProcessFirmwareVolume.
--*/
{
UINTN CapsuleSize;
UINTN ArrayNumber;
VOID *BufferPtr;
EFI_STATUS Status;
EFI_HANDLE FvHandle;
UEFI_CAPSULE_HEADER *CapsuleHeader;
if (CapsuleCount < 1) {
return EFI_INVALID_PARAMETER;
}
BufferPtr = NULL;
CapsuleHeader = NULL;
//
//Compare GUIDs with EFI_CAPSULE_GUID, if capsule header contains CAPSULE_FLAGS_PERSIST_ACROSS_RESET
//and CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flags,whatever the GUID is ,the service supports.
//
for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) && !(CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET)) {
return EFI_INVALID_PARAMETER;
}
if (!CompareGuid (&CapsuleHeader->CapsuleGuid, &mEfiCapsuleHeaderGuid)) {
if (!(CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) {
return EFI_UNSUPPORTED;
}
}
}
//
//Assume that capsules have the same flags on reseting or not.
//
CapsuleHeader = CapsuleHeaderArray[0];
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
//
//Check if the platform supports update capsule across a system reset
//
if (!FeaturePcdGet(PcdSupportUpdateCapsuleRest)) {
return EFI_UNSUPPORTED;
}
if (ScatterGatherList == 0) {
return EFI_INVALID_PARAMETER;
} else {
Status = EfiSetVariable (
EFI_CAPSULE_VARIABLE_NAME,
&gEfiCapsuleVendorGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (UINTN),
(VOID *) &ScatterGatherList
);
if (Status != EFI_SUCCESS) {
return EFI_DEVICE_ERROR;
}
}
return EFI_SUCCESS;
}
//
//The rest occurs in the condition of non-reset mode
//
if (EfiAtRuntime ()) {
return EFI_INVALID_PARAMETER;
}
//
//Here should be in the boot-time
//
for (ArrayNumber = 0; ArrayNumber < CapsuleCount ; ArrayNumber++) {
CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
CapsuleSize = CapsuleHeader->CapsuleImageSize - CapsuleHeader->HeaderSize;
Status = gBS->AllocatePool (EfiBootServicesData, CapsuleSize, &BufferPtr);
if (Status != EFI_SUCCESS) {
goto Done;
}
gBS->CopyMem (BufferPtr, (UINT8*)CapsuleHeader+ CapsuleHeader->HeaderSize, CapsuleSize);
//
//Call DXE service ProcessFirmwareVolume to process immediatelly
//
Status = gDS->ProcessFirmwareVolume (BufferPtr, CapsuleSize, &FvHandle);
if (Status != EFI_SUCCESS) {
gBS->FreePool (BufferPtr);
return EFI_DEVICE_ERROR;
}
gDS->Dispatch ();
gBS->FreePool (BufferPtr);
}
return EFI_SUCCESS;
Done:
if (BufferPtr != NULL) {
gBS->FreePool (BufferPtr);
}
return EFI_DEVICE_ERROR;
}
EFI_STATUS
EFIAPI
QueryCapsuleCapabilities (
IN UEFI_CAPSULE_HEADER **CapsuleHeaderArray,
IN UINTN CapsuleCount,
OUT UINT64 *MaxiumCapsuleSize,
OUT EFI_RESET_TYPE *ResetType
)
/*++
Routine Description:
This code is to query about capsule capability.
Arguments:
CapsuleHeaderArray A array of pointers to capsule headers passed in
CapsuleCount The number of capsule
MaxiumCapsuleSize Max capsule size is supported
ResetType Reset type the capsule indicates, if reset is not needed,return EfiResetCold.
If reset is needed, return EfiResetWarm.
Returns:
EFI STATUS
EFI_SUCCESS Valid answer returned
EFI_INVALID_PARAMETER MaxiumCapsuleSize is NULL,ResetType is NULL.CapsuleCount is less than 1,CapsuleGuid is not supported.
EFI_UNSUPPORTED The capsule type is not supported.
--*/
{
UINTN ArrayNumber;
UEFI_CAPSULE_HEADER *CapsuleHeader;
if (CapsuleCount < 1) {
return EFI_INVALID_PARAMETER;
}
if ((MaxiumCapsuleSize == NULL) ||(ResetType == NULL)) {
return EFI_INVALID_PARAMETER;
}
CapsuleHeader = NULL;
//
//Compare GUIDs with EFI_CAPSULE_GUID, if capsule header contains CAPSULE_FLAGS_PERSIST_ACROSS_RESET
//and CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flags,whatever the GUID is ,the service supports.
//
for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) && !(CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET)) {
return EFI_INVALID_PARAMETER;
}
if (!CompareGuid (&CapsuleHeader->CapsuleGuid, &mEfiCapsuleHeaderGuid)) {
if (!(CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) {
return EFI_UNSUPPORTED;
}
}
}
//
//Assume that capsules have the same flags on reseting or not.
//
CapsuleHeader = CapsuleHeaderArray[0];
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
//
//Check if the platform supports update capsule across a system reset
//
if (!FeaturePcdGet(PcdSupportUpdateCapsuleRest)) {
return EFI_UNSUPPORTED;
}
*ResetType = EfiResetWarm;
*MaxiumCapsuleSize = FixedPcdGet32(PcdMaxSizePopulateCapsule);
} else {
*ResetType = EfiResetCold;
*MaxiumCapsuleSize = FixedPcdGet32(PcdMaxSizeNonPopulateCapsule);
}
return EFI_SUCCESS;
}
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