audk/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.c

280 lines
9.6 KiB
C

/** @file
Capsule Runtime Drivers produces two UEFI capsule runtime services.
(UpdateCapsule, QueryCapsuleCapabilities)
Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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.
**/
#include "CapsuleService.h"
/**
Passes capsules to the firmware with both virtual and physical mapping. Depending on the intended
consumption, the firmware may process the capsule immediately. If the payload should persist
across a system reset, the reset value returned from EFI_QueryCapsuleCapabilities must
be passed into ResetSystem() and will cause the capsule to be processed by the firmware as
part of the reset process.
@param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules
being passed into update capsule.
@param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in
CaspuleHeaderArray.
@param ScatterGatherList Physical pointer to a set of
EFI_CAPSULE_BLOCK_DESCRIPTOR that describes the
location in physical memory of a set of capsules.
@retval EFI_SUCCESS Valid capsule was passed. If
CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, the
capsule has been successfully processed by the firmware.
@retval EFI_DEVICE_ERROR The capsule update was started, but failed due to a device error.
@retval EFI_INVALID_PARAMETER CapsuleCount is Zero, or CapsuleImage is not valid.
For across reset capsule image, ScatterGatherList is NULL.
@retval EFI_UNSUPPORTED CapsuleImage is not recognized by the firmware.
**/
EFI_STATUS
EFIAPI
UpdateCapsule (
IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,
IN UINTN CapsuleCount,
IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL
)
{
UINTN ArrayNumber;
EFI_STATUS Status;
EFI_CAPSULE_HEADER *CapsuleHeader;
//
// Capsule Count can't be less than one.
//
if (CapsuleCount < 1) {
return EFI_INVALID_PARAMETER;
}
CapsuleHeader = NULL;
for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
//
// A capsule which has the CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag must have
// CAPSULE_FLAGS_PERSIST_ACROSS_RESET set in its header as well.
//
CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
if ((CapsuleHeader->Flags & (CAPSULE_FLAGS_PERSIST_ACROSS_RESET | CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) == CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) {
return EFI_INVALID_PARAMETER;
}
//
// Check Capsule image without populate flag by firmware support capsule function
//
if (((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) &&
(SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS)) {
return EFI_UNSUPPORTED;
}
}
//
// Assume that capsules have the same flags on reseting or not.
//
CapsuleHeader = CapsuleHeaderArray[0];
//
// Process across reset capsule image.
//
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;
}
//
// ScatterGatherList is only referenced if the capsules are defined to persist across
// system reset.
//
if (ScatterGatherList == (EFI_PHYSICAL_ADDRESS) (UINTN) NULL) {
return EFI_INVALID_PARAMETER;
} else {
//
// ScatterGatherList is only referenced if the capsules are defined to persist across
// system reset. Set its value into NV storage to let pre-boot driver to pick it up
// after coming through a system reset.
//
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 Status;
}
//
// Successfully set the capsule image address into EFI variable.
//
return EFI_SUCCESS;
}
}
//
// Process the non-reset capsule image.
//
if (EfiAtRuntime ()) {
//
// Runtime mode doesn't support the non-reset capsule image.
//
return EFI_UNSUPPORTED;
}
//
// Here should be in the boot-time for non-reset capsule image
// Platform specific update for the non-reset capsule image.
//
for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
Status = ProcessCapsuleImage (CapsuleHeaderArray[ArrayNumber]);
if (EFI_ERROR (Status)) {
return Status;
}
}
return EFI_SUCCESS;
}
/**
Returns if the capsule can be supported via UpdateCapsule().
@param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules
being passed into update capsule.
@param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in
CaspuleHeaderArray.
@param MaxiumCapsuleSize On output the maximum size that UpdateCapsule() can
support as an argument to UpdateCapsule() via
CapsuleHeaderArray and ScatterGatherList.
@param ResetType Returns the type of reset required for the capsule update.
@retval EFI_SUCCESS Valid answer returned.
@retval EFI_UNSUPPORTED The capsule image is not supported on this platform, and
MaximumCapsuleSize and ResetType are undefined.
@retval EFI_INVALID_PARAMETER MaximumCapsuleSize is NULL, or ResetTyep is NULL,
Or CapsuleCount is Zero, or CapsuleImage is not valid.
**/
EFI_STATUS
EFIAPI
QueryCapsuleCapabilities (
IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,
IN UINTN CapsuleCount,
OUT UINT64 *MaxiumCapsuleSize,
OUT EFI_RESET_TYPE *ResetType
)
{
UINTN ArrayNumber;
EFI_CAPSULE_HEADER *CapsuleHeader;
//
// Capsule Count can't be less than one.
//
if (CapsuleCount < 1) {
return EFI_INVALID_PARAMETER;
}
//
// Check whether input paramter is valid
//
if ((MaxiumCapsuleSize == NULL) ||(ResetType == NULL)) {
return EFI_INVALID_PARAMETER;
}
CapsuleHeader = NULL;
for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
//
// A capsule which has the CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag must have
// CAPSULE_FLAGS_PERSIST_ACROSS_RESET set in its header as well.
//
if ((CapsuleHeader->Flags & (CAPSULE_FLAGS_PERSIST_ACROSS_RESET | CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) == CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) {
return EFI_INVALID_PARAMETER;
}
//
// Check Capsule image without populate flag is supported by firmware
//
if (((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) &&
(SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS)) {
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 {
//
// For non-reset capsule image.
//
*ResetType = EfiResetCold;
*MaxiumCapsuleSize = FixedPcdGet32(PcdMaxSizeNonPopulateCapsule);
}
return EFI_SUCCESS;
}
/**
This code is to install UEFI capsule runtime service.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS UEFI Capsule Runtime Services are installed successfully.
**/
EFI_STATUS
EFIAPI
CapsuleServiceInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HANDLE NewHandle;
//
// Install capsule runtime services into UEFI runtime service tables.
//
SystemTable->RuntimeServices->UpdateCapsule = UpdateCapsule;
SystemTable->RuntimeServices->QueryCapsuleCapabilities = QueryCapsuleCapabilities;
//
// Install the Capsule Architectural Protocol on a new handle
// to signify the capsule runtime services are ready.
//
NewHandle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&NewHandle,
&gEfiCapsuleArchProtocolGuid,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}