回复: 回复: [edk2-devel] [PATCH v5 0/8] Add Variable Flash Info HOB
gaoliming
gaoliming at byosoft.com.cn
Sat May 14 01:16:25 UTC 2022
Michael:
This is my suggestion to resolve such compatible issue. As you say, it needs more review and discussion. So, it may not be applied immediately.
If this patch set needs to catch this table tag, it has to take current way to update each DSC file. Have the patch set got reviewed-by from Package maintainers? If yes, I think this patch set can still be merged for this stable tag.
Thanks
Liming
> -----邮件原件-----
> 发件人: Michael Kubacki <mikuback at linux.microsoft.com>
> 发送时间: 2022年5月14日 2:24
> 收件人: gaoliming <gaoliming at byosoft.com.cn>; devel at edk2.groups.io; 'Ard
> Biesheuvel' <ardb at kernel.org>
> 抄送: 'Abner Chang' <abner.chang at hpe.com>; 'Andrew Fish'
> <afish at apple.com>; 'Anthony Perard' <anthony.perard at citrix.com>; 'Ard
> Biesheuvel' <ardb+tianocore at kernel.org>; 'Benjamin You'
> <benjamin.you at intel.com>; 'Brijesh Singh' <brijesh.singh at amd.com>; 'Erdem
> Aktas' <erdemaktas at google.com>; 'Gerd Hoffmann' <kraxel at redhat.com>;
> 'Guo Dong' <guo.dong at intel.com>; 'Hao A Wu' <hao.a.wu at intel.com>;
> 'James Bottomley' <jejb at linux.ibm.com>; 'Jian J Wang'
> <jian.j.wang at intel.com>; 'Jiewen Yao' <jiewen.yao at intel.com>; 'Jordan
> Justen' <jordan.l.justen at intel.com>; 'Julien Grall' <julien at xen.org>; 'Leif
> Lindholm' <quic_llindhol at quicinc.com>; 'Maurice Ma'
> <maurice.ma at intel.com>; 'Min Xu' <min.m.xu at intel.com>; 'Nickle Wang'
> <nickle.wang at hpe.com>; 'Peter Grehan' <grehan at freebsd.org>; 'Ray Ni'
> <ray.ni at intel.com>; 'Rebecca Cran' <rebecca at bsdio.com>; 'Sami Mujawar'
> <sami.mujawar at arm.com>; 'Sean Rhodes' <sean at starlabs.systems>;
> 'Sebastien Boeuf' <sebastien.boeuf at intel.com>; 'Tom Lendacky'
> <thomas.lendacky at amd.com>
> 主题: Re: 回复: [edk2-devel] [PATCH v5 0/8] Add Variable Flash Info HOB
>
> Can you please respond with your preference?
>
> I am ready to do this but if it is required now, it should be documented
> so it becomes a consistent pattern for future changes.
>
> Thanks,
> Michael
>
> On 5/10/2022 11:01 AM, Michael Kubacki wrote:
> > What's the plan for next steps? The v5 PR has been up for two weeks with
> > no changes.
> >
> > Are we going to try to define a long-term pattern for how to include new
> > library classes in core packages or merge the patch series?
> >
> > Thanks,
> > Michael
> >
> > On 5/5/2022 9:52 PM, Michael Kubacki wrote:
> >> I still believe a long term design pattern deserves more focus and
> >> documentation than a quick modification to this series.
> >>
> >> Can you confirm that you envision MdePkg/MdeLibs.dsc.inc serving as a
> >> monolithic host of various other default library class instances?
> >>
> >> That somewhat inverts the package relationships, the code reviewer
> >> policy would need to clarify when the original package owners are
> >> included on the MdePkg patch (to confirm they agree with the default
> >> instance choice), and "core" packages would have to be clearly defined
> >> in this context for developers to know what packages are allowed.
> >>
> >> In addition, this does not mean there still won't be some level of
> >> platform integration thrash. For example, if a new library class
> >> instance added to MdePkg/MdeLibs.dsc.inc requires another library
> >> class (or multiple others), those might not be added to the DSC
> >> include file. They could have been satisfied in the original package
> >> DSC (or a test platform DSC) but that doesn't mean they will be in all
> >> platform DSC files. So when the MdeLibs.dsc.inc file update occurs,
> >> those platforms break and need to add the library class that was
> >> already specified in other DSC files.
> >>
> >> So I request that if this is the preferred approach, that it be agreed
> >> upon (e.g. dedicated RFC), documented, and consistently followed by
> >> other contributions as well.
> >>
> >> Regards,
> >> Michael
> >>
> >> On 5/4/2022 9:27 PM, gaoliming wrote:
> >>> Michael:
> >>> I would suggest to reuse MdePkg/MdeLibs.dsc.inc to list the
> >>> library and PCD from the edk2 core packages, such as MdePkg,
> >>> MdeModulePkg, CryptoPkg, SecurirtyPkg and so on. Those packages are
> >>> required by every platforms. They can't be separated. So, I think
> >>> MdePkg/MdeLibs.dsc.inc is for edk2 core packages, not only for MdePkg.
> >>>
> >>> Thanks
> >>> Liming
> >>>> -----邮件原件-----
> >>>> 发件人: devel at edk2.groups.io <devel at edk2.groups.io> 代表
> Michael
> >>>> Kubacki
> >>>> 发送时间: 2022年4月29日 23:48
> >>>> 收件人: Ard Biesheuvel <ardb at kernel.org>
> >>>> 抄送: edk2-devel-groups-io <devel at edk2.groups.io>; Abner Chang
> >>>> <abner.chang at hpe.com>; Andrew Fish <afish at apple.com>; Anthony
> Perard
> >>>> <anthony.perard at citrix.com>; Ard Biesheuvel
> >>>> <ardb+tianocore at kernel.org>;
> >>>> Benjamin You <benjamin.you at intel.com>; Brijesh Singh
> >>>> <brijesh.singh at amd.com>; Erdem Aktas <erdemaktas at google.com>;
> Gerd
> >>>> Hoffmann <kraxel at redhat.com>; Guo Dong <guo.dong at intel.com>; Hao
> A
> >>>> Wu <hao.a.wu at intel.com>; James Bottomley <jejb at linux.ibm.com>;
> Jian J
> >>>> Wang <jian.j.wang at intel.com>; Jiewen Yao <jiewen.yao at intel.com>;
> Jordan
> >>>> Justen <jordan.l.justen at intel.com>; Julien Grall <julien at xen.org>; Leif
> >>>> Lindholm <quic_llindhol at quicinc.com>; Liming Gao
> >>>> <gaoliming at byosoft.com.cn>; Maurice Ma <maurice.ma at intel.com>;
> Min Xu
> >>>> <min.m.xu at intel.com>; Nickle Wang <nickle.wang at hpe.com>; Peter
> Grehan
> >>>> <grehan at freebsd.org>; Ray Ni <ray.ni at intel.com>; Rebecca Cran
> >>>> <rebecca at bsdio.com>; Sami Mujawar <sami.mujawar at arm.com>;
> Sean
> >>>> Rhodes <sean at starlabs.systems>; Sebastien Boeuf
> >>>> <sebastien.boeuf at intel.com>; Tom Lendacky
> <thomas.lendacky at amd.com>
> >>>> 主题: Re: [edk2-devel] [PATCH v5 0/8] Add Variable Flash Info HOB
> >>>>
> >>>> I agree that would be a useful tool and in the case of changes such as
> >>>> this that provide backward compatibility with existing functionality,
> >>>> particularly helpful.
> >>>>
> >>>> Some packages such as MdePkg
> >>>>
> (https://github.com/tianocore/edk2/blob/master/MdePkg/MdeLibs.dsc.inc)
> >>>> and NetworkPkg
> >>>>
> (https://github.com/tianocore/edk2/blob/master/NetworkPkg/NetworkCom
> >>>> ponents.dsc.inc)
> >>>> provide DSC files that a platform can override if necessary.
> >>>>
> >>>> However, this does not exist for all edk2 packages. I did not introduce
> >>>> such a file in MdeModulePkg because I believe that is an independent
> >>>> package design decision outside the scope of this series and, if that
> >>>> change was made, it should include libraries other than just this
> >>>> instance. That would lead to additional churn and a larger platform
> >>>> integration debate, important to that topic, but separate from the
> >>>> current state this contribution is based against.
> >>>>
> >>>> While includes be helpful, it can encourage platform owners to ignore
> >>>> potential creep in functionality they should be aware of.
> >>>>
> >>>> For example, the DSC update is mostly being given to platforms to fix
> >>>> their immediate build problem. But, a platform owner might also choose
> >>>> to update their FVB driver to use this interface to get flash
> >>>> information as opposed to directly using PCDs as many do today.
> >>>> That's a
> >>>> decision they need to evaluate and make but they should be aware of
> the
> >>>> interface and make that decision. By directly reviewing/integrating the
> >>>> change for their platform, they are more explicitly made aware of this
> >>>> new interface to form that decision.
> >>>>
> >>>> Also, when many include files get involved, platform build complexity
> >>>> and developer frustration can increase due to nesting and order of
> >>>> include files. Values (library classes, PCDs, etc.) can be overridden
> >>>> more than once. Ultimately, this is technically manageable by utilizing
> >>>> build reports and understanding the EDK II build output in more detail.
> >>>>
> >>>> Again, I think this conversation is useful but requires much more time
> >>>> to address questions such as the following:
> >>>>
> >>>> 1. Should a different mechanism for default library classes be
> >>>> introduced?
> >>>>
> >>>> 2. Should all packages in edk2 provide such an include file? If so,
> >>>> does
> >>>> it only provide the DSC file (like MdePkg) or other files (like
> >>>> NetworkPkg which includes FDF)?
> >>>>
> >>>> 3. Which library classes for a given package should be given default
> >>>> instances?
> >>>>
> >>>> 4. How would each platform package maintainer like to maintain their
> >>>> platform build?
> >>>>
> >>>> Example: Would MinPlatformPkg prefer to keep its own "core" include
> >>>> files
> >>>>
> (https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/Mi
> >>>>
> >>>> nPlatformPkg/Include)
> >>>> or reconcile them with include files (possibly introducing an
> >>>> additional
> >>>> layer of nesting)? Would others prefer not to use includes at all to
> >>>> keep a flat, simpler file?
> >>>>
> >>>> How would someone updating the platform code due to an edk2 change
> be
> >>>> aware of this per-platform policy?
> >>>>
> >>>> To my understanding, the answers to these today are:
> >>>>
> >>>> 1. No
> >>>> 2. No / decided on per-change basis
> >>>> 3. Unknown
> >>>> 4. Unknown
> >>>>
> >>>> (2) adds friction to the edk2 contribution process as expectation is
> >>>> unclear.
> >>>>
> >>>> (3) adds churn into the platform integration process as the integration
> >>>> process for existing code is subject to change over time (e.g. realize
> >>>> library class is now in DSC and remove from platform DSC to use include
> >>>> instance).
> >>>>
> >>>> (4) adds friction to the edk2 contribution process as expectation is
> >>>> unclear. Also, somewhat error prone. There's also a level of due
> >>>> diligence needed to confirm if a platform that already has an
> >>>> include is
> >>>> overriding that in another DSC file. If so, is that still the correct
> >>>> behavior or should it be modified.
> >>>>
> >>>> Regards,
> >>>> Michael
> >>>>
> >>>> On 4/29/2022 9:45 AM, Ard Biesheuvel wrote:
> >>>>> On Tue, 26 Apr 2022 at 03:29, <mikuback at linux.microsoft.com>
> wrote:
> >>>>>>
> >>>>>> From: Michael Kubacki <michael.kubacki at microsoft.com>
> >>>>>>
> >>>>>> REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3479
> >>>>>>
> >>>>>> Platforms: This series introduces a new library class called
> >>>>>> VariableFlashInfoLib. Platforms using the variable modules will
> >>>>>> need to specify these library classes. See the patches at the
> >>>>>> end of this series for examples of the change needed in the
> >>>>>> platform DSC file. I have attempted to update all open-source
> >>>>>> platforms in edk2 and edk2-platforms in this series and
> >>>>>> https://edk2.groups.io/g/devel/message/89148.
> >>>>>>
> >>>>>
> >>>>> I will make the same remark here as I made in response to the
> >>>>> edk2-platforms series:
> >>>>>
> >>>>> Could we please consider introducing a way to define the default
> >>>>> resolution of a library class? That way, all this churn and
> >>>>> unnecessary breakage would not be necessary, as defining a resolution
> >>>>> would only be necessary when deviating from the default. In fact, we
> >>>>> might be able to clean up some .DSCs considerably by defining defaults
> >>>>> for library classes that only have one (or very few) implementations.
> >>>>>
> >>>>>
> >>>>>> The UEFI variable drivers such as VariableRuntimeDxe, VariableSmm,
> >>>>>> VariableStandaloneMm, etc. (and their dependent protocol/library
> >>>>>> stack), typically acquire UEFI variable store flash information
> >>>>>> with PCDs declared in MdeModulePkg.
> >>>>>>
> >>>>>> For example:
> >>>>>> [Pcd]
> >>>>>> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariabl
> eBase
> >>>>>>
> >>>> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64
> >>>>>> gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariabl
> eSize
> >>>>>>
> >>>>>> These PCDs work as-is in the StandaloneMm driver if they are not
> >>>>>> dynamic such as Dynamic or DynamicEx because PCD services are not
> >>>>>> readily available in the Standalone MM environment. Platforms that
> >>>>>> use Standalone MM today, must define these PCDs as FixedAtBuild in
> >>>>>> their platform build. However, the PCDs do allow platforms to treat
> >>>>>> the PCDs as Dynamic/DynamicEx and being able to support that is
> >>>>>> currently a gap for Standalone MM.
> >>>>>>
> >>>>>> This patch series introduces a HOB that can be produced by the
> >>>>>> platform to provide the same information. The HOB list is
> >>>>>> available to Standalone MM.
> >>>>>>
> >>>>>> The PCD declarations are left as-is in MdeModulePkg for backward
> >>>>>> compatibility. This means unless a platform wants to use the HOB,
> >>>>>> their code will continue to work with no change (they do not need
> >>>>>> to produce the HOB). Only if the HOB is found, is its value used
> >>>>>> instead of the PCDs.
> >>>>>>
> >>>>>> Due to the large number of consumers of this information, access
> >>>>>> to the base address and size values is abstracted in a new library
> >>>>>> class (as requested in the v1 series) called VariableFlashInfoLib.
> >>>>>>
> >>>>>> The API of VariableFlashInfoLib does not bind the underlying data
> >>>>>> structure to the information returned to library users to allow
> >>>>>> flexibility in the library implementation in the future.
> >>>>>>
> >>>>>> V5 changes.
> >>>>>> 1. Made GetVariableFlashInfoFromHob() in
> BaseVariableFlashInfoLib.c
> >>>>>> STATIC.
> >>>>>> 2. Added a section in commit v5 [3/8] to explicitly state that the
> >>>>>> commit introduces a dependency that requires a change in
> >>>>>> platform
> >>>>>> build. Please see patches v5 [5/8] - v5 [8/8] for examples of
> >>>>>> how to integrate this change (add VariableFlashInfoLib library
> >>>>>> to DSC file).
> >>>>>>
> >>>>>> V4 changes:
> >>>>>> 1. Add a UINT32 "Reserved" field to VARIABLE_FLASH_INFO.
> >>>>>> 2. Add a descriptive comment to VariableFlashInfo.h to explain
> >>>>>> HOB usage.
> >>>>>>
> >>>>>> V3 changes:
> >>>>>> 1. To better clarify usage, renamed the members
> >>>>>> "NvStorageBaseAddress" and "NvStorageLength" in
> >>>>>> "VARIABLE_FLASH_INFO" to "NvVariableBaseAddress" and
> >>>>>> "NvVariableLength".
> >>>>>> 2. Added description comments to the fields in
> "VARIABLE_FLASH_INFO".
> >>>>>>
> >>>>>> V2 changes:
> >>>>>> 1. Abstracted flash info data access with VariableFlashInfoLib.
> >>>>>> 2. Updated package builds in the repo that build the variable and
> >>>>>> FTW drivers to include VariableFlashInfoLib.
> >>>>>> 3. Removed a redundant variable assignment in VariableSmm.c.
> >>>>>> 4. Updated comments in FtwMisc.c and FaultTolerantWritePei.c to
> >>>>>> indicate driver assumption is UINTN (not UINT32)
> >>>>>> 5. Added a version field to the VARIABLE_FLASH_INFO structure.
> >>>>>>
> >>>>>> Cc: Abner Chang <abner.chang at hpe.com>
> >>>>>> Cc: Andrew Fish <afish at apple.com>
> >>>>>> Cc: Anthony Perard <anthony.perard at citrix.com>
> >>>>>> Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
> >>>>>> Cc: Benjamin You <benjamin.you at intel.com>
> >>>>>> Cc: Brijesh Singh <brijesh.singh at amd.com>
> >>>>>> Cc: Erdem Aktas <erdemaktas at google.com>
> >>>>>> Cc: Gerd Hoffmann <kraxel at redhat.com>
> >>>>>> Cc: Guo Dong <guo.dong at intel.com>
> >>>>>> Cc: Hao A Wu <hao.a.wu at intel.com>
> >>>>>> Cc: James Bottomley <jejb at linux.ibm.com>
> >>>>>> Cc: Jian J Wang <jian.j.wang at intel.com>
> >>>>>> Cc: Jiewen Yao <jiewen.yao at intel.com>
> >>>>>> Cc: Jordan Justen <jordan.l.justen at intel.com>
> >>>>>> Cc: Julien Grall <julien at xen.org>
> >>>>>> Cc: Leif Lindholm <quic_llindhol at quicinc.com>
> >>>>>> Cc: Liming Gao <gaoliming at byosoft.com.cn>
> >>>>>> Cc: Maurice Ma <maurice.ma at intel.com>
> >>>>>> Cc: Min Xu <min.m.xu at intel.com>
> >>>>>> Cc: Nickle Wang <nickle.wang at hpe.com>
> >>>>>> Cc: Peter Grehan <grehan at freebsd.org>
> >>>>>> Cc: Ray Ni <ray.ni at intel.com>
> >>>>>> Cc: Rebecca Cran <rebecca at bsdio.com>
> >>>>>> Cc: Sami Mujawar <sami.mujawar at arm.com>
> >>>>>> Cc: Sean Rhodes <sean at starlabs.systems>
> >>>>>> Cc: Sebastien Boeuf <sebastien.boeuf at intel.com>
> >>>>>> Cc: Tom Lendacky <thomas.lendacky at amd.com>
> >>>>>> Signed-off-by: Michael Kubacki <michael.kubacki at microsoft.com>
> >>>>>>
> >>>>>> Michael Kubacki (8):
> >>>>>> MdeModulePkg: Add Variable Flash Info HOB
> >>>>>> MdeModulePkg/VariableFlashInfoLib: Add initial library
> >>>>>> MdeModulePkg/Variable: Consume Variable Flash Info
> >>>>>> MdeModulePkg/FaultTolerantWrite: Consume Variable Flash
> Info
> >>>>>> ArmVirtPkg/ArmVirt.dsc.inc: Add VariableFlashInfoLib
> >>>>>> EmulatorPkg: Add VariableFlashInfoLib
> >>>>>> OvmfPkg: Add VariableFlashInfoLib
> >>>>>> UefiPayloadPkg: Add VariableFlashInfoLib
> >>>>>>
> >>>>>>
> >>>>
> MdeModulePkg/Library/BaseVariableFlashInfoLib/BaseVariableFlashInfoLib.c
> >>>>
> >>>> | 179 ++++++++++++++++++++
> >>>>>> MdeModulePkg/Universal/FaultTolerantWriteDxe/FtwMisc.c
> >>>> | 41 +++--
> >>>>>>
> >>>>
> MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
> >>>> | 7 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/FaultTolerantWritePei/FaultTolerantWritePei.c
> >>>> | 28 +--
> >>>>>> MdeModulePkg/Universal/Variable/Pei/Variable.c
> >>>> | 14 +-
> >>>>>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c
> >>>> | 16 +-
> >>>>>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableNonVo
> latile.c
> >>>> | 14 +-
> >>>>>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
> >>>> | 17 +-
> >>>>>> ArmVirtPkg/ArmVirt.dsc.inc
> >>>> | 1 +
> >>>>>> EmulatorPkg/EmulatorPkg.dsc
> >>>> | 1 +
> >>>>>> MdeModulePkg/Include/Guid/VariableFlashInfo.h
> >>>> | 111 ++++++++++++
> >>>>>> MdeModulePkg/Include/Library/VariableFlashInfoLib.h
> >>>> | 68 ++++++++
> >>>>>>
> >>>>
> MdeModulePkg/Library/BaseVariableFlashInfoLib/BaseVariableFlashInfoLib.i
> >>>>
> >>>> nf | 48 ++++++
> >>>>>>
> >>>>
> MdeModulePkg/Library/BaseVariableFlashInfoLib/BaseVariableFlashInfoLib.u
> >>>>
> >>>> ni | 12 ++
> >>>>>> MdeModulePkg/MdeModulePkg.dec
> >>>> | 8 +
> >>>>>> MdeModulePkg/MdeModulePkg.dsc
> >>>> | 2 +
> >>>>>> MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerant
> Write.h
> >>>> | 7 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
> >>>> | 10 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf
> >>>> | 10 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal
> >>>> oneMm.inf | 10 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/FaultTolerantWritePei/FaultTolerantWritePei.inf
> >>>> | 10 +-
> >>>>>> MdeModulePkg/Universal/Variable/Pei/Variable.h
> >>>> | 2 +
> >>>>>> MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
> >>>> | 5 +-
> >>>>>> MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
> >>>> | 7 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
> >>>> | 5 +-
> >>>>>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.i
> nf
> >>>> | 5 +-
> >>>>>>
> >>>>
> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf
> >>>> | 5 +-
> >>>>>> OvmfPkg/AmdSev/AmdSevX64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/Bhyve/BhyveX64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/CloudHv/CloudHvX64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/IntelTdx/IntelTdxX64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/Microvm/MicrovmX64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/OvmfPkgIa32.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/OvmfPkgIa32X64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/OvmfPkgX64.dsc
> >>>> | 1 +
> >>>>>> OvmfPkg/OvmfXen.dsc
> >>>> | 1 +
> >>>>>> UefiPayloadPkg/UefiPayloadPkg.dsc
> >>>> | 1 +
> >>>>>> 37 files changed, 559 insertions(+), 94 deletions(-)
> >>>>>> create mode 100644
> >>>>
> MdeModulePkg/Library/BaseVariableFlashInfoLib/BaseVariableFlashInfoLib.c
> >>>>
> >>>>>> create mode 100644
> MdeModulePkg/Include/Guid/VariableFlashInfo.h
> >>>>>> create mode 100644
> >>>> MdeModulePkg/Include/Library/VariableFlashInfoLib.h
> >>>>>> create mode 100644
> >>>>
> MdeModulePkg/Library/BaseVariableFlashInfoLib/BaseVariableFlashInfoLib.i
> >>>>
> >>>> nf
> >>>>>> create mode 100644
> >>>>
> MdeModulePkg/Library/BaseVariableFlashInfoLib/BaseVariableFlashInfoLib.u
> >>>>
> >>>> ni
> >>>>>>
> >>>>>> --
> >>>>>> 2.28.0.windows.1
> >>>>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
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