Hi Liming,
The Uefi spec Version 2.9 appears to have some inconsistencies regarding the
possibility of runtime processing of FMP capsules. The UpdateCapsule()
runtime service in Section 8.5.3 states that "the firmware may process the
capsule immediately", but in Section 23.3.1, where the FMP capsule is
described, the last paragraph states "By definition Firmware Management
protocol services are not available in EFI runtime".
I think the following spec changes would document the optional runtime FMP
capsule processing as implemented in this patch:
1. Reword Section 23.3.1 Description last paragraph, first sentence.
From: "By definition Firmware Management protocol services are not available
in EFI runtime and depending upon platform capabilities, EFI runtime delivery
of this capsule may not be supported and may return an error when delivered in
EFI runtime with CAPSULE_FLAGS_PERSIST_ACROSS_RESET bit defined."
To something like this: "Depending upon platform capabilities, EFI runtime
delivery or processing of this capsule may not be supported and may return an
error when delivered in EFI runtime.
2. Reword Section 23.3.3 Step 3.
From: "If system is not in boot services and platform does not support
persistence of capsule across reset when initiated within EFI Runtime,
EFI_OUT_OF_RESOURCES error is returned."
To something like this: "If system is not in boot services and the
CAPSULE_FLAGS_PERSIST_ACROSS_RESET flag is set, but the platform does not
support persistence of capsule across reset when initiated within EFI Runtime,
EFI_OUT_OF_RESOURCES error is returned." <<<By the way, UpdateCapsule()
currently appears to return EFI_UNSUPPORTED in this case, see the
IsPersistAcrossResetCapsuleSupported () check near the end>>>
3. Add runtime FMP support info to Section 23.3.3 Step 3.
If system is not in boot services and the CAPSULE_FLAGS_PERSIST_ACROSS_RESET
flag is not set, but the platform does not support processing of capsules
within EFI Runtime, EFI_OUT_OF_RESOURCES error is returned. If the platform
supports processing of capsules within EFI Runtime, steps 4-10 are not
applicable and the capsules are processed according to steps 11-14.
Let me know what you think and we can get an ECR process started to update the
spec.
Thanks,
-bob
-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of gaoliming via
groups.io
Sent: Monday, November 1, 2021 7:17 PM
To: devel@edk2.groups.io; Bob Morgan <b...@nvidia.com>
Cc: 'Jian J Wang' <jian.j.w...@intel.com>; 'Guomin Jiang'
<guomin.ji...@intel.com>
Subject: 回复: [edk2-devel] [PATCH] MdeModulePkg/DxeCapsuleLibFmp: Add runtime
SetImage support
External email: Use caution opening links or attachments
Bob:
Thanks for your detail. PcdRuntimeFmpCapsuleImageTypeIdGuid is edk2
implementation solution. Have you the proposal on how to update UEFI spec to
support runtime FMP protocol?
Thanks
Liming
> -----邮件原件-----
> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Bob Morgan via
> groups.io
> 发送时间: 2021年10月30日 1:59
> 收件人: gaoliming <gaolim...@byosoft.com.cn>; devel@edk2.groups.io
> 抄送: 'Jian J Wang' <jian.j.w...@intel.com>; 'Guomin Jiang'
> <guomin.ji...@intel.com>
> 主题: Re: [edk2-devel] [PATCH] MdeModulePkg/DxeCapsuleLibFmp: Add
> runtime SetImage support
>
> Hi Liming, See inline below.
>
> > -----Original Message-----
> > From: gaoliming <gaolim...@byosoft.com.cn>
> > Sent: Thursday, October 28, 2021 7:57 PM
> > To: devel@edk2.groups.io; Bob Morgan <b...@nvidia.com>
> > Cc: 'Jian J Wang' <jian.j.w...@intel.com>; 'Guomin Jiang'
> > <guomin.ji...@intel.com>
> > Subject: 回复: [edk2-devel] [PATCH] MdeModulePkg/DxeCapsuleLibFmp:
> > Add runtime SetImage support
> >
> > External email: Use caution opening links or attachments
> >
> >
> > Bob:
> > I think this patch needs to work together with the changes of
> > FmpDevicePkg: Add support for runtime FmpDxe driver.
>
> Yes, this patch adds support to process FMP capsules at runtime if the
> capsule’s UpdateImageTypeId is supported by a runtime-capable FmpDxe
> driver (e.g. using the FmpDevicePkg patch you mentioned). The
> PcdSupportProcessCapsuleAtRuntime PCD must be TRUE and the capsule’s
> CAPSULE_FLAGS_PERSIST_ACROSS_RESET flag must be FALSE.
> >
> > Capsule is runtime service. If it consumes FMP to do update, FMP
> > service can support runtime. But, how does Capsule know whether FMP
> > protocol supports runtime or not?
>
> Right, this patch requires an implementation to list the FMP
> ImageTypeId GUIDs supported by any runtime-capable FmpDxe drivers in
> the new PcdRuntimeFmpCapsuleImageTypeIdGuid array PCD. This PCD is
> used by the new InitializeRuntimeFmpArrays() function during
> DxeRuntimeCapsuleLib initialization to find the FMP instances that
> support those ImageTypeIds and save their
> EFI_FIRMWARE_MANAGEMENT_PROTOCOL protocol structure pointers for
> runtime use during capsule processing.
>
> When ProcessFmpCapsuleImage() executes its step ‘2. Route payload to
> right FMP instance’, it detects runtime execution and uses the saved
> runtime-capable FMP protocol structure pointer if its ImageTypeId
> matches that of the capsule being processed.
>
> I hope that helps. Please let me know if additional clarification is needed.
>
> Thanks,
> -bob
> >
> > Thanks
> > Liming
> > > -----邮件原件-----
> > > 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Bob
> Morgan
> > via
> > > groups.io
> > > 发送时间: 2021年10月20日 4:11
> > > 收件人: devel@edk2.groups.io
> > > 抄送: Bob Morgan <b...@nvidia.com>; Jian J Wang
> > <jian.j.w...@intel.com>;
> > > Liming Gao <gaolim...@byosoft.com.cn>; Guomin Jiang
> > > <guomin.ji...@intel.com>
> > > 主题: [edk2-devel] [PATCH] MdeModulePkg/DxeCapsuleLibFmp: Add
> > runtime
> > > SetImage support
> > >
> > > Adds optional support for processing FMP capusle images after
> > > ExitBootServices() if the ImageTypeIdGuid is mentioned in the new
> > > PcdRuntimeFmpCapsuleImageTypeIdGuid list.
> > >
> > > Cc: Jian J Wang <jian.j.w...@intel.com>
> > > Cc: Liming Gao <gaolim...@byosoft.com.cn>
> > > Cc: Guomin Jiang <guomin.ji...@intel.com>
> > > Signed-off-by: Bob Morgan <b...@nvidia.com>
> > > ---
> > > .../Library/DxeCapsuleLibFmp/DxeCapsuleLib.c | 81 +++++++++---
> > > .../DxeCapsuleLibFmp/DxeCapsuleRuntime.c | 119
> > > ++++++++++++++++++
> > > .../DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf | 4 +
> > > MdeModulePkg/MdeModulePkg.dec | 7 +-
> > > 4 files changed, 192 insertions(+), 19 deletions(-)
> > >
> > > diff --git a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c
> > > b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c
> > > index 90942135d7..0000f91c6a 100644
> > > --- a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c
> > > +++ b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c
> > > @@ -10,6 +10,7 @@
> > > ValidateFmpCapsule(), and DisplayCapsuleImage() receives
> > > untrusted input and
> > > performs basic validation.
> > >
> > > + Copyright (c) 2021, NVIDIA CORPORATION. All rights
> > > + reserved.<BR>
> > > Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
> > > SPDX-License-Identifier: BSD-2-Clause-Patent
> > >
> > > @@ -41,6 +42,11 @@
> > > #include <Protocol/FirmwareManagementProgress.h>
> > > #include <Protocol/DevicePath.h>
> > >
> > > +BOOLEAN (EFIAPI *mLibAtRuntimeFunction) (VOID)
> =
> > > NULL;
> > > +EFI_FIRMWARE_MANAGEMENT_PROTOCOL *mRuntimeFmp
> > > = NULL;
> > > +VOID
> **mRuntimeFmpProtocolArray
> > > = NULL;
> > > +EFI_GUID *mRuntimeFmpGuidArray
> > > = NULL;
> > > +
> > > EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable =
> NULL;
> > > BOOLEAN mIsVirtualAddrConverted =
> FALSE;
> > >
> > > @@ -551,6 +557,11 @@ DumpAllFmpInfo (
> > > UINT32
> PackageVersion;
> > > CHAR16
> > > *PackageVersionName;
> > >
> > > + // Dump not supported at runtime.
> > > + if ((mLibAtRuntimeFunction != NULL) && mLibAtRuntimeFunction ()) {
> > > + return;
> > > + }
> > > +
> > > Status = gBS->LocateHandleBuffer (
> > > ByProtocol,
> > > &gEfiFirmwareManagementProtocolGuid,
> > > @@ -906,25 +917,35 @@ SetFmpImageData (
> > > CHAR16
> *AbortReason;
> > > EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS
> > > ProgressCallback;
> > >
> > > - Status = gBS->HandleProtocol(
> > > - Handle,
> > > - &gEfiFirmwareManagementProtocolGuid,
> > > - (VOID **)&Fmp
> > > - );
> > > - if (EFI_ERROR(Status)) {
> > > - return Status;
> > > - }
> > > + // If not using optional runtime support, get FMP protocol for
> > > + given
> > > Handle.
> > > + // Otherwise, use the one saved by ProcessFmpCapsuleImage().
> > > + if ((mLibAtRuntimeFunction == NULL) || !mLibAtRuntimeFunction ()) {
> > > + Status = gBS->HandleProtocol(
> > > + Handle,
> > > + &gEfiFirmwareManagementProtocolGuid,
> > > + (VOID **)&Fmp
> > > + );
> > > + if (EFI_ERROR(Status)) {
> > > + return Status;
> > > + }
> > >
> > > - //
> > > - // Lookup Firmware Management Progress Protocol before
> > > SetImage() is called
> > > - // This is an optional protocol that may not be present on Handle.
> > > - //
> > > - Status = gBS->HandleProtocol (
> > > - Handle,
> > > -
> &gEdkiiFirmwareManagementProgressProtocolGuid,
> > > - (VOID **)&mFmpProgress
> > > - );
> > > - if (EFI_ERROR (Status)) {
> > > + //
> > > + // Lookup Firmware Management Progress Protocol before
> SetImage()
> > > is called
> > > + // This is an optional protocol that may not be present on Handle.
> > > + //
> > > + Status = gBS->HandleProtocol (
> > > + Handle,
> > > +
> > > &gEdkiiFirmwareManagementProgressProtocolGuid,
> > > + (VOID **)&mFmpProgress
> > > + );
> > > + if (EFI_ERROR (Status)) {
> > > + mFmpProgress = NULL;
> > > + }
> > > + } else {
> > > + if (mRuntimeFmp == NULL) {
> > > + return EFI_UNSUPPORTED;
> > > + }
> > > + Fmp = mRuntimeFmp;
> > > mFmpProgress = NULL;
> > > }
> > >
> > > @@ -1259,6 +1280,30 @@ ProcessFmpCapsuleImage (
> > > UpdateHardwareInstance =
> > > ImageHeader->UpdateHardwareInstance;
> > > }
> > >
> > > + // Optional runtime FMP SetImage processing sequence
> > > + if ((mLibAtRuntimeFunction != NULL) && mLibAtRuntimeFunction
> > > + ()
> &&
> > > + (mRuntimeFmpProtocolArray != NULL)) {
> > > + mRuntimeFmp = NULL;
> > > + Index2 = 0;
> > > + while (mRuntimeFmpProtocolArray[Index2] != NULL) {
> > > + if (CompareGuid (&ImageHeader->UpdateImageTypeId,
> > > + &mRuntimeFmpGuidArray[Index2])) {
> > > + mRuntimeFmp =
> (EFI_FIRMWARE_MANAGEMENT_PROTOCOL
> > > *)
> > > + mRuntimeFmpProtocolArray[Index2];
> > > + break;
> > > + }
> > > + Index2++;
> > > + }
> > > +
> > > + Status = SetFmpImageData (NULL,
> > > + ImageHeader,
> > > + Index -
> > > FmpCapsuleHeader->EmbeddedDriverCount);
> > > + if (EFI_ERROR (Status)) {
> > > + return Status;
> > > + }
> > > + continue;
> > > + }
> > > +
> > > Status = GetFmpHandleBufferByType (
> > > &ImageHeader->UpdateImageTypeId,
> > > UpdateHardwareInstance, diff --git
> > > a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c
> > > b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c
> > > index f94044a409..6feb6dab79 100644
> > > --- a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c
> > > +++ b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c
> > > @@ -1,6 +1,7 @@
> > > /** @file
> > > Capsule library runtime support.
> > >
> > > + Copyright (c) 2021, NVIDIA CORPORATION. All rights
> > > + reserved.<BR>
> > > Copyright (c) 2016 - 2017, Intel Corporation. All rights reserved.<BR>
> > > SPDX-License-Identifier: BSD-2-Clause-Patent
> > >
> > > @@ -19,7 +20,11 @@
> > > #include <Library/UefiBootServicesTableLib.h>
> > > #include <Library/UefiRuntimeServicesTableLib.h>
> > > #include <Library/MemoryAllocationLib.h>
> > > +#include <Library/UefiRuntimeLib.h>
> > >
> > > +extern BOOLEAN (EFIAPI
> *mLibAtRuntimeFunction)
> > > (VOID);
> > > +extern VOID **mRuntimeFmpProtocolArray;
> > > +extern EFI_GUID *mRuntimeFmpGuidArray;
> > > extern EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable;
> > > extern BOOLEAN mIsVirtualAddrConverted;
> > > EFI_EVENT
> > > mDxeRuntimeCapsuleLibVirtualAddressChangeEvent = NULL; @@ -40,9
> > > +45,121 @@ DxeCapsuleLibVirtualAddressChangeEvent (
> > > )
> > > {
> > > gRT->ConvertPointer (EFI_OPTIONAL_PTR, (VOID **)&mEsrtTable);
> > > +
> > > + if (mRuntimeFmpProtocolArray != NULL) {
> > > + VOID **FmpArrayEntry;
> > > +
> > > + FmpArrayEntry = mRuntimeFmpProtocolArray;
> > > + while (*FmpArrayEntry != NULL) {
> > > + EfiConvertPointer (0x0, (VOID **) FmpArrayEntry);
> > > + FmpArrayEntry++;
> > > + }
> > > + EfiConvertPointer (0x0, (VOID **)
> &mRuntimeFmpProtocolArray); }
> > > + if (mRuntimeFmpGuidArray != NULL) {
> > > + EfiConvertPointer (0x0, (VOID **) &mRuntimeFmpGuidArray); }
> if
> > > + (mLibAtRuntimeFunction != NULL ) {
> > > + EfiConvertPointer (0x0, (VOID **) &mLibAtRuntimeFunction); }
> > > +
> > > mIsVirtualAddrConverted = TRUE; }
> > >
> > > +/**
> > > + Initialize optional runtime FMP arrays to support FMP SetImage
> > > processing
> > > + after ExitBootServices() is called.
> > > +
> > > + The ImageTypeIdGuids of runtime-capable FMP protocol drivers
> > > + are
> > > extracted
> > > + from the PcdRuntimeFmpCapsuleImageTypeIdGuid list and their
> > > + protocol structure pointers are saved in the
> > > + mRuntimeFmpProtocolArray for use
> > > during
> > > + UpdateCapsule() processing. UpdateHardwareInstance is not
> supported.
> > > +
> > > +**/
> > > +STATIC
> > > +VOID
> > > +EFIAPI
> > > +InitializeRuntimeFmpArrays (
> > > + VOID
> > > + )
> > > +{
> > > + EFI_GUID *Guid;
> > > + UINTN NumHandles;
> > > + EFI_HANDLE *HandleBuffer;
> > > + EFI_STATUS Status;
> > > + UINTN Count;
> > > + UINTN Index;
> > > + UINTN FmpArrayIndex;
> > > +
> > > + EFI_STATUS
> > > + GetFmpHandleBufferByType (
> > > + IN EFI_GUID
> *UpdateImageTypeId,
> > > + IN UINT64
> > > UpdateHardwareInstance,
> > > + OUT UINTN *NoHandles,
> > > OPTIONAL
> > > + OUT EFI_HANDLE **HandleBuf,
> > > OPTIONAL
> > > + OUT BOOLEAN
> **ResetRequiredBuf
> > > OPTIONAL
> > > + );
> > > +
> > > + Count = PcdGetSize (PcdRuntimeFmpCapsuleImageTypeIdGuid) /
> sizeof
> > > (GUID);
> > > + if (Count == 0) {
> > > + return;
> > > + }
> > > +
> > > + // mRuntimeFmpProtocolArray is a NULL-terminated list of FMP
> > > + protocol
> > > pointers
> > > + mRuntimeFmpProtocolArray = (VOID **)
> > > + AllocateRuntimeZeroPool ((Count + 1) * sizeof (VOID *)); if
> > > + (mRuntimeFmpProtocolArray == NULL) {
> > > + DEBUG ((DEBUG_ERROR, "Error allocating
> > > mRuntimeFmpProtocolArray\n"));
> > > + return;
> > > + }
> > > + mRuntimeFmpGuidArray = (EFI_GUID *)
> > > + AllocateRuntimeZeroPool (Count * sizeof (EFI_GUID)); if
> > > + (mRuntimeFmpGuidArray == NULL) {
> > > + DEBUG ((DEBUG_ERROR, "Error allocating
> mRuntimeFmpGuidArray"));
> > > + FreePool (mRuntimeFmpProtocolArray);
> > > + return;
> > > + }
> > > +
> > > + // For each runtime ImageTypeIdGuid in the PCD, save its GUID
> > > + and FMP
> > > protocol
> > > + FmpArrayIndex = 0;
> > > + Guid = PcdGetPtr (PcdRuntimeFmpCapsuleImageTypeIdGuid);
> > > + for (Index = 0; Index < Count; Index++, Guid++) {
> > > + mRuntimeFmpGuidArray[FmpArrayIndex] = *Guid;
> > > + HandleBuffer = NULL;
> > > + Status = GetFmpHandleBufferByType (Guid,
> > > + 0,
> > > + &NumHandles,
> > > + &HandleBuffer,
> > > + NULL);
> > > + if (EFI_ERROR (Status)) {
> > > + DEBUG ((DEBUG_ERROR,
> > > + "Error finding FMP handle for runtime
> > > ImageTypeIdGuid=%g: %r\n",
> > > + Guid, Status));
> > > + continue;
> > > + }
> > > +
> > > + if (NumHandles > 1) {
> > > + DEBUG ((DEBUG_ERROR,
> > > + "FMP runtime ImageTypeIdGuid=%g returned %u
> handles,
> > > only 1 supported\n",
> > > + Guid, NumHandles));
> > > + }
> > > + Status = gBS->HandleProtocol (HandleBuffer[0],
> > > +
> > > &gEfiFirmwareManagementProtocolGuid,
> > > +
> > > &mRuntimeFmpProtocolArray[FmpArrayIndex]);
> > > + FreePool (HandleBuffer);
> > > + if (EFI_ERROR(Status)) {
> > > + DEBUG ((DEBUG_ERROR,
> > > + "Error getting FMP protocol for runtime
> > > ImageTypeIdGuid=%g: %r\n",
> > > + Guid, Status));
> > > + continue;
> > > + }
> > > +
> > > + FmpArrayIndex++;
> > > + }
> > > +
> > > + mLibAtRuntimeFunction = EfiAtRuntime; }
> > > +
> > > /**
> > > Notify function for event group
> EFI_EVENT_GROUP_READY_TO_BOOT.
> > >
> > > @@ -93,6 +210,8 @@ DxeCapsuleLibReadyToBootEventNotify (
> > > //
> > > mEsrtTable->FwResourceCountMax =
> mEsrtTable->FwResourceCount;
> > > }
> > > +
> > > + InitializeRuntimeFmpArrays ();
> > > }
> > >
> > > /**
> > > diff --git
> > > a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> > > b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> > > index bf56f4623f..7b3f5e04f8 100644
> > > ---
> > a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> > > +++
> > b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
> > > @@ -49,6 +49,7 @@
> > > PrintLib
> > > HobLib
> > > BmpSupportLib
> > > + PcdLib
> > >
> > >
> > > [Protocols]
> > > @@ -70,5 +71,8 @@
> > > gEfiEventVirtualAddressChangeGuid ## CONSUMES ## Event
> > > gEdkiiCapsuleOnDiskNameGuid ##
> > > SOMETIMES_CONSUMES ## GUID
> > >
> > > +[Pcd]
> > > +
> > >
> > gEfiMdeModulePkgTokenSpaceGuid.PcdRuntimeFmpCapsuleImageTypeIdG
> > ui
> > > d
> > > +
> > > [Depex]
> > > gEfiVariableWriteArchProtocolGuid diff --git
> > > a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
> > > index 133e04ee86..869aa892f7
> > 100644
> > > --- a/MdeModulePkg/MdeModulePkg.dec
> > > +++ b/MdeModulePkg/MdeModulePkg.dec
> > > @@ -3,7 +3,7 @@
> > > # It also provides the definitions(including PPIs/PROTOCOLs/GUIDs
> > > and library classes) # and libraries instances, which are used
> > > for those modules.
> > > #
> > > -# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
> > > +# Copyright (c) 2019-2021, NVIDIA CORPORATION. All rights
> > > +reserved.<BR>
> > > # Copyright (c) 2007 - 2021, Intel Corporation. All rights
> > > reserved.<BR> # Copyright (c) 2016, Linaro Ltd. All rights
> > > reserved.<BR> # (C) Copyright 2016 - 2019 Hewlett Packard
> > > Enterprise Development LP<BR> @@ -2020,6 +2020,11 @@
> > > # @Prompt Capsule On Disk Temp Relocation file name in PEI
> > > phase
> > >
> > >
> > gEfiMdeModulePkgTokenSpaceGuid.PcdCoDRelocationFileName|L"Cod.tmp
> > "|
> > > VOID*|0x30001048
> > >
> > > + ## This PCD holds a list of GUIDs for the ImageTypeId to
> > > + indicate the # FMP is runtime capable.
> > > + # @Prompt A list of runtime-capable FMP ImageTypeId GUIDs
> > > +
> > >
> > gEfiMdeModulePkgTokenSpaceGuid.PcdRuntimeFmpCapsuleImageTypeIdG
> > ui
> > > d|{0x0}|VOID*|0x30001049
> > > +
> > > ## This PCD hold a list GUIDs for the ImageTypeId to indicate the
> > > # FMP capsule is a system FMP.
> > > # @Prompt A list of system FMP ImageTypeId GUIDs
> > > --
> > > 2.17.1
> > >
> > >
> > >
> > >
> > >
> >
> >
>
>
>
>
>
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