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5d69642deb
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5441 6f19259b-4bc3-4df7-8a09-765794883524
280 lines
9.6 KiB
C
280 lines
9.6 KiB
C
/** @file
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Capsule Runtime Drivers produces two UEFI capsule runtime services.
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(UpdateCapsule, QueryCapsuleCapabilities)
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "CapsuleService.h"
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/**
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Passes capsules to the firmware with both virtual and physical mapping. Depending on the intended
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consumption, the firmware may process the capsule immediately. If the payload should persist
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across a system reset, the reset value returned from EFI_QueryCapsuleCapabilities must
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be passed into ResetSystem() and will cause the capsule to be processed by the firmware as
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part of the reset process.
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@param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules
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being passed into update capsule.
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@param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in
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CaspuleHeaderArray.
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@param ScatterGatherList Physical pointer to a set of
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EFI_CAPSULE_BLOCK_DESCRIPTOR that describes the
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location in physical memory of a set of capsules.
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@retval EFI_SUCCESS Valid capsule was passed. If
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CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, the
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capsule has been successfully processed by the firmware.
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@retval EFI_DEVICE_ERROR The capsule update was started, but failed due to a device error.
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@retval EFI_INVALID_PARAMETER CapsuleCount is Zero, or CapsuleImage is not valid.
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For across reset capsule image, ScatterGatherList is NULL.
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@retval EFI_UNSUPPORTED CapsuleImage is not recognized by the firmware.
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**/
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EFI_STATUS
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EFIAPI
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UpdateCapsule (
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IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,
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IN UINTN CapsuleCount,
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IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL
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)
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{
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UINTN ArrayNumber;
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EFI_STATUS Status;
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EFI_CAPSULE_HEADER *CapsuleHeader;
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//
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// Capsule Count can't be less than one.
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//
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if (CapsuleCount < 1) {
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return EFI_INVALID_PARAMETER;
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}
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CapsuleHeader = NULL;
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for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
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//
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// A capsule which has the CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag must have
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// CAPSULE_FLAGS_PERSIST_ACROSS_RESET set in its header as well.
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//
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CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
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if ((CapsuleHeader->Flags & (CAPSULE_FLAGS_PERSIST_ACROSS_RESET | CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) == CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Check Capsule image without populate flag by firmware support capsule function
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//
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if (((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) &&
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(SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS)) {
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return EFI_UNSUPPORTED;
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}
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}
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//
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// Assume that capsules have the same flags on reseting or not.
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//
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CapsuleHeader = CapsuleHeaderArray[0];
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//
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// Process across reset capsule image.
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//
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if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
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//
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// Check if the platform supports update capsule across a system reset
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//
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if (!FeaturePcdGet(PcdSupportUpdateCapsuleRest)) {
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return EFI_UNSUPPORTED;
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}
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//
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// ScatterGatherList is only referenced if the capsules are defined to persist across
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// system reset.
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//
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if (ScatterGatherList == (EFI_PHYSICAL_ADDRESS) (UINTN) NULL) {
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return EFI_INVALID_PARAMETER;
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} else {
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//
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// ScatterGatherList is only referenced if the capsules are defined to persist across
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// system reset. Set its value into NV storage to let pre-boot driver to pick it up
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// after coming through a system reset.
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//
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Status = EfiSetVariable (
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EFI_CAPSULE_VARIABLE_NAME,
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&gEfiCapsuleVendorGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
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sizeof (UINTN),
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(VOID *) &ScatterGatherList
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);
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if (Status != EFI_SUCCESS) {
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return Status;
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}
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//
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// Successfully set the capsule image address into EFI variable.
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//
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return EFI_SUCCESS;
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}
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}
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//
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// Process the non-reset capsule image.
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//
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if (EfiAtRuntime ()) {
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//
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// Runtime mode doesn't support the non-reset capsule image.
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//
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return EFI_UNSUPPORTED;
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}
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//
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// Here should be in the boot-time for non-reset capsule image
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// Platform specific update for the non-reset capsule image.
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//
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for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
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Status = ProcessCapsuleImage (CapsuleHeaderArray[ArrayNumber]);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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}
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return EFI_SUCCESS;
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}
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/**
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Returns if the capsule can be supported via UpdateCapsule().
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@param CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules
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being passed into update capsule.
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@param CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in
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CaspuleHeaderArray.
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@param MaxiumCapsuleSize On output the maximum size that UpdateCapsule() can
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support as an argument to UpdateCapsule() via
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CapsuleHeaderArray and ScatterGatherList.
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@param ResetType Returns the type of reset required for the capsule update.
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@retval EFI_SUCCESS Valid answer returned.
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@retval EFI_UNSUPPORTED The capsule image is not supported on this platform, and
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MaximumCapsuleSize and ResetType are undefined.
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@retval EFI_INVALID_PARAMETER MaximumCapsuleSize is NULL, or ResetTyep is NULL,
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Or CapsuleCount is Zero, or CapsuleImage is not valid.
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**/
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EFI_STATUS
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EFIAPI
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QueryCapsuleCapabilities (
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IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,
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IN UINTN CapsuleCount,
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OUT UINT64 *MaxiumCapsuleSize,
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OUT EFI_RESET_TYPE *ResetType
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)
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{
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UINTN ArrayNumber;
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EFI_CAPSULE_HEADER *CapsuleHeader;
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//
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// Capsule Count can't be less than one.
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//
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if (CapsuleCount < 1) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Check whether input paramter is valid
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//
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if ((MaxiumCapsuleSize == NULL) ||(ResetType == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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CapsuleHeader = NULL;
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for (ArrayNumber = 0; ArrayNumber < CapsuleCount; ArrayNumber++) {
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CapsuleHeader = CapsuleHeaderArray[ArrayNumber];
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//
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// A capsule which has the CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE flag must have
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// CAPSULE_FLAGS_PERSIST_ACROSS_RESET set in its header as well.
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//
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if ((CapsuleHeader->Flags & (CAPSULE_FLAGS_PERSIST_ACROSS_RESET | CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE)) == CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Check Capsule image without populate flag is supported by firmware
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//
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if (((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) == 0) &&
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(SupportCapsuleImage (CapsuleHeader) != EFI_SUCCESS)) {
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return EFI_UNSUPPORTED;
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}
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}
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//
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// Assume that capsules have the same flags on reseting or not.
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//
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CapsuleHeader = CapsuleHeaderArray[0];
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if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {
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//
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//Check if the platform supports update capsule across a system reset
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//
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if (!FeaturePcdGet(PcdSupportUpdateCapsuleRest)) {
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return EFI_UNSUPPORTED;
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}
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*ResetType = EfiResetWarm;
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*MaxiumCapsuleSize = FixedPcdGet32(PcdMaxSizePopulateCapsule);
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} else {
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//
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// For non-reset capsule image.
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//
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*ResetType = EfiResetCold;
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*MaxiumCapsuleSize = FixedPcdGet32(PcdMaxSizeNonPopulateCapsule);
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}
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return EFI_SUCCESS;
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}
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/**
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This code is to install UEFI capsule runtime service.
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@param ImageHandle The firmware allocated handle for the EFI image.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS UEFI Capsule Runtime Services are installed successfully.
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**/
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EFI_STATUS
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EFIAPI
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CapsuleServiceInitialize (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE NewHandle;
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//
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// Install capsule runtime services into UEFI runtime service tables.
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//
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SystemTable->RuntimeServices->UpdateCapsule = UpdateCapsule;
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SystemTable->RuntimeServices->QueryCapsuleCapabilities = QueryCapsuleCapabilities;
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//
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// Install the Capsule Architectural Protocol on a new handle
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// to signify the capsule runtime services are ready.
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//
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NewHandle = NULL;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&NewHandle,
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&gEfiCapsuleArchProtocolGuid,
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NULL,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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return EFI_SUCCESS;
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}
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