Re: [edk2-devel] [Patch V2 5/8] MdeModulePkg: Add UefiCpuPkg.dec to pass DependencyCheck

["Michael D Kinney" <michael.d.kinney@intel.com>]

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MdePkg: Include files for industry standard and public specs and lib classes and lib implementations that support those specs

If all the IA32/X64 CPU header files to support the CpuPageTableLib class are in the MdePkg, then we could consider
moving he class to MdePkg and avoid this patch.

The current CpuPageTableLib looks IA32/X64 specific.  Should it follow the naming conventions in the EDK II C Coding Style Spec
updated by Abner?  It does not look like the current CpuPageTableLib APIs would apply to other CPU archs.

MdePkg does not have any modules.  UefiCpuPkg contains CPU specific modules.  UefiCpuPkg can also contain libs
that are required by modules in the UefiCpuPkg or modules in other Si/Platform packages.

Thanks,

Mike

From: Ni, Ray <ray.ni@intel.com>
Sent: Friday, April 14, 2023 9:08 AM
To: Kinney, Michael D <michael.d.kinney@intel.com>; devel@edk2.groups.io; Wang, Jian J <jian.j.wang@intel.com>; Tan, Dun <dun.tan@intel.com>
Cc: Gao, Liming <gaoliming@byosoft.com.cn>; Kinney, Michael D <michael.d.kinney@intel.com>
Subject: Re: [edk2-devel] [Patch V2 5/8] MdeModulePkg: Add UefiCpuPkg.dec to pass DependencyCheck

Mike,
What's the rule regarding content in mdepkg and cpupkg?

thanks,
ray
________________________________
From: Kinney, Michael D <michael.d.kinney@intel.com<mailto:michael.d.kinney@intel.com>>
Sent: Friday, April 14, 2023 11:16:45 PM
To: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>>; Wang, Jian J <jian.j.wang@intel.com<mailto:jian.j.wang@intel.com>>; Tan, Dun <dun.tan@intel.com<mailto:dun.tan@intel.com>>
Cc: Gao, Liming <gaoliming@byosoft.com.cn<mailto:gaoliming@byosoft.com.cn>>; Ni, Ray <ray.ni@intel.com<mailto:ray.ni@intel.com>>; Kinney, Michael D <michael.d.kinney@intel.com<mailto:michael.d.kinney@intel.com>>
Subject: RE: [edk2-devel] [Patch V2 5/8] MdeModulePkg: Add UefiCpuPkg.dec to pass DependencyCheck

If components outside the UefiCpuPkg need access to the CpuPageTableLib, should we
consider moving CpuPageTableLib to MdePkg or MdeModulePkg?  There are many different
boot phases that need to crate/manage page tables, so we need to find the right
common location.  Perhaps the only part that needs to be moved is the lib class?

Mike

> -----Original Message-----
> From: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>> On Behalf Of Wang, Jian J
> Sent: Friday, April 14, 2023 2:03 AM
> To: Tan, Dun <dun.tan@intel.com<mailto:dun.tan@intel.com>>; devel@edk2.groups.io<mailto:devel@edk2.groups.io>
> Cc: Gao, Liming <gaoliming@byosoft.com.cn<mailto:gaoliming@byosoft.com.cn>>; Ni, Ray <ray.ni@intel.com<mailto:ray.ni@intel.com>>
> Subject: Re: [edk2-devel] [Patch V2 5/8] MdeModulePkg: Add UefiCpuPkg.dec to pass DependencyCheck
>
> MdeModulePkg has never depended on UefiCpuPkg before. Please double
> check if there's any side effect introduced by this mutual dependency.
>
> Acked-by: Jian J Wang <jian.j.wang@intel.com<mailto:jian.j.wang@intel.com>>
>
>
> > -----Original Message-----
> > From: Tan, Dun <dun.tan@intel.com<mailto:dun.tan@intel.com>>
> > Sent: Friday, March 31, 2023 5:34 PM
> > To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>
> > Cc: Gao, Liming <gaoliming@byosoft.com.cn<mailto:gaoliming@byosoft.com.cn>>; Ni, Ray <ray.ni@intel.com<mailto:ray.ni@intel.com>>;
> > Wang, Jian J <jian.j.wang@intel.com<mailto:jian.j.wang@intel.com>>
> > Subject: [Patch V2 5/8] MdeModulePkg: Add UefiCpuPkg.dec to pass
> > DependencyCheck
> >
> > Add UefiCpuPkg/UefiCpuPkg.dec in MdeModulePkg.ci.yaml to pass
> > DependencyCheck since DxeIpl in MdeModulePkg needs to consume
> > CpuPageTableLib in UefiCpuPkg.
> >
> > Signed-off-by: Dun Tan <dun.tan@intel.com<mailto:dun.tan@intel.com>>
> > Cc: Liming Gao <gaoliming@byosoft.com.cn<mailto:gaoliming@byosoft.com.cn>>
> > Cc: Ray Ni <ray.ni@intel.com<mailto:ray.ni@intel.com>>
> > Cc: Jian J Wang <jian.j.wang@intel.com<mailto:jian.j.wang@intel.com>>
> > ---
> >  MdeModulePkg/MdeModulePkg.ci.yaml | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/MdeModulePkg/MdeModulePkg.ci.yaml
> > b/MdeModulePkg/MdeModulePkg.ci.yaml
> > index f69989087b..d2616f4cdc 100644
> > --- a/MdeModulePkg/MdeModulePkg.ci.yaml
> > +++ b/MdeModulePkg/MdeModulePkg.ci.yaml
> > @@ -2,7 +2,7 @@
> >  # CI configuration for MdeModulePkg
> >  #
> >  # Copyright (c) Microsoft Corporation
> > -# Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
> > +# Copyright (c) 2020 - 2023, Intel Corporation. All rights reserved.<BR>
> >  # (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
> >  # SPDX-License-Identifier: BSD-2-Clause-Patent
> >  ##
> > @@ -51,7 +51,8 @@
> >              "MdePkg/MdePkg.dec",
> >              "MdeModulePkg/MdeModulePkg.dec",
> >              "StandaloneMmPkg/StandaloneMmPkg.dec",
> > -            "ArmPkg/ArmPkg.dec"  # this should be fixed by promoting an
> > abstraction
> > +            "ArmPkg/ArmPkg.dec",  # this should be fixed by promoting an
> > abstraction
> > +            "UefiCpuPkg/UefiCpuPkg.dec"
> >          ],
> >          # For host based unit tests
> >          "AcceptableDependencies-HOST_APPLICATION":[
> > --
> > 2.31.1.windows.1
>
>
>
> 
>

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