Re: [edk2-devel] [RFC] Support Both MM Traditional and Standalone Drivers with One MM Core
Siyuan, Fu <siyuan.fu@...>
Hi, Jiewen/Laszlo
toggle quoted messageShow quoted text
Thanks for your comments on this. Hi, Ard/Sami/Supreeth Since ARM based platforms are currently the major user of the MM Core in StandaloneMmPkg, I would like to hear you idea about this change. Do you have any concern about adding MM Traditional driver support to the Standalone MM Core? Best Regards Siyuan
-----Original Message-----
|
|
Re: [edk2-devel] [RFC] Support Both MM Traditional and Standalone Drivers with One MM Core
Yao, Jiewen
IMHO, StandaloneMm (in StandaloneMmPkg) should be the long term direction to replace the traditional MM (in MdeModulePkg).
toggle quoted messageShow quoted text
If we want to do some enhancement, I prefer #2 to update the one in StandaloneMmPkg. Once we retire transitional MM, we can delete the PiSmmCore in MdeModulePkg. If we choose #1, the EDKII will have two standaloneMm Cores (the one in StandaloneMmPkg and the one in MdeModulePkg), which may bring lots of confusing and we may need merge them later. Thank you Yao Jiewen
-----Original Message-----
|
|
Re: [edk2-devel] [RFC] Support Both MM Traditional and Standalone Drivers with One MM Core
Laszlo Ersek
On 10/09/20 14:23, Yao, Jiewen wrote:
IMHO, StandaloneMm (in StandaloneMmPkg) should be the long term direction to replace the traditional MM (in MdeModulePkg).This is a good idea -- when we think we are ready to retire PiSmmCore in MdeModulePkg, because we think that StandaloneMmPkg can fully replace it, platforms can evaluate the latter (hopefully with some simple DSC / FDF modifications), and report back whether they see regressions or whether StandaloneMmPkg behaves as a drop-in replacement indeed, for PiSmmCore in MdeModulePkg. Thanks Laszlo
|
|
Re: [edk2-devel] [RFC] Support Both MM Traditional and Standalone Drivers with One MM Core
Laszlo Ersek
On 10/09/20 07:22, Siyuan, Fu wrote:
Hi, AllWhich method is the least risky with regard to regressions, in your opinion? I tend to prefer #2. Either option is neutral for ArmVirtPkg at the moment, and option#2 is safer for OvmfPkg (no risk of regression). Thus far, there has not been any need (that I know of) for OVMF to support standalone MM drivers. Furthermore, if we wanted to add Management Mode support to ArmVirtPkg at some (later) point, I believe (?) we'd just use StandaloneMmPkg right from the start. I.e., from my perspective, mixing MM module types, for some kind of transition for a platform from one MM mode to another, is not immediately useful; so my goal is to minimize the risk of regressions. Thanks Laszlo
|
|
[RFC] Support Both MM Traditional and Standalone Drivers with One MM Core
Siyuan, Fu <siyuan.fu@...>
Hi, All
This email is to collect feedback about making one common EDK2 MM Core driver to support both MM Traditional drivers and MM Standalone drivers. We know that PI Spec defines two types of MM-related drivers: MM Traditional Drivers and MM Standalone Drivers. There are two MM Core modules exist in EDK2 but each of them can only support one single type of MM drivers: - PiSmmCore in MdeModulePkg supports MM Traditional driver dispatch. It doesn't have FV parsing logic and relies on EFI Firmware Volume2 Protocol for driver discovery. It doesn't support MM Standalone driver. - StandaloneMmCore in StandaloneMmPkg supports MM Standalone driver dispatch. It has FV parsing and decompress logic but only limited to one single firmware volume (called standalone BFV in code). It doesn't support MM Traditional driver. However, a platform may want to have both of the two types of MM drivers coexist in its firmware, for example, when it tries to transfer from Traditional MM mode to Standalone MM mode, in a stage by stage manner. However, it's not possible with current EDK2 MM Core because of above limitations. Thus, here we propose to have a common MM Core module in EDK2, which could: - Support both MM Traditional drivers and MM Standalone drivers. - Use shared Depex evaluation when dispatching all the MM drivers. - Use a shared MM System Table when invoking all the MM drivers' entry point, which mean handle/protocol database is shared. - Have self-contained FV parsing and driver discovery capability. We realized there could be 2 possible options to make this happen: - Option 1: Update the MdeModulePkg Core. In this approach, we will need to add the FV decompress, driver discovery and MM Standalone driver dispatcher to the PiSmmCore module in MdeModulePkg. - Option 2: Update the StandaloneMmPkg Core. Which means adding MM Traditional dispatcher and multiple FV support to existing standalone Core in StandaloneMmPkg. Will also need to add PEI/DXE IPL module to invoke the Standalone MM Core and pass UEFI System Table to it. The option 1 will have less impact to those platforms which only use MM Standalone drivers currently, because those platforms can stay with the unchanged Standalone MM Core. While option 2 looks more like a clean solution because it could support all the cases (Traditional MM only, Standalone MM only, and mix-used platform). So I'd like to hear the community's feedback about which option is preferred, and let me know if you have any concerns with this change. Thanks! Best Regards Siyuan
|
|
Re: [edk2-devel] [edk2-rfc] [RFC] Request to move MinPlatformPkg out of the Intel folder
Hey Leif,
On 10/4/20, 3:00 PM, Leif Lindholm <leif@nuviainc.com> wrote: It is actually seeing a pretty large amount of external consumption right now. To my knowledge, every IBV and most OEMs depend on MinPlatformPkg for Tiger Lake UEFI firmware implementations. Given the interest we have seen here for non-Intel MinPlatform firmware, I believe that edk2 is likely the best place for it. Thanks, Nate
|
|
Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder
Hey Bret,
On 10/5/20, 12:35 PM, Bret Barkelew <bret.barkelew@microsoft.com> wrote: I'm not opposed to that idea, but it sounds like a totally different RFC 😊. We also need to be cognizant that there are many people downstream from TianoCore that don't use any repo management tooling. Thanks, Nate
|
|
Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder
Bret Barkelew <bret.barkelew@...>
I think that to support anything larger that proofs of concept – in other words, to support the actual platforms that we WANT to consume this trusted, common code – we already have to support recursive submodules.
Our team HIGHLY recommends that platforms submodule edk2 rather than forking it, which means (for most) that they are already invested in repo management tooling of one form or another. Perhaps this is the time we get EdkRepo and Stuart to join forces and become the one-true-repo-management solution for EDK. Or we could all move to Rust and start complaining about Cargo immediately. 😉 - Bret From: Nate DeSimone via groups.io<mailto:nathaniel.l.desimone=intel.com@groups.io> Sent: Sunday, October 4, 2020 2:02 PM To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>; spbrogan@outlook.com<mailto:spbrogan@outlook.com>; rfc@edk2.groups.io<mailto:rfc@edk2.groups.io> Cc: Leif Lindholm<mailto:leif@nuviainc.com>; Laszlo Ersek<mailto:lersek@redhat.com>; Ard Biesheuvel<mailto:ard.biesheuvel@arm.com>; Kirkendall, Garrett<mailto:garrett.kirkendall@amd.com>; Lendacky, Thomas<mailto:thomas.lendacky@amd.com>; thomas.abraham@arm.com<mailto:thomas.abraham@arm.com>; Frank.Orr@dell.com<mailto:Frank.Orr@dell.com>; Jim Dailey<mailto:jim.dailey@dell.com>; Abner Chang<mailto:abner.chang@hpe.com>; Wang, Sunny (HPS SW)<mailto:sunnywang@hpe.com>; Daniel Schaefer<mailto:daniel.schaefer@hpe.com>; Liming Gao<mailto:gaoliming@byosoft.com.cn>; Tim Lewis<mailto:tim.lewis@insyde.com>; Kevin D Davis<mailto:kevin.davis@insyde.com>; Felix Polyudov<mailto:felixp@ami.com>; Kinney, Michael D<mailto:michael.d.kinney@intel.com>; Oram, Isaac W<mailto:isaac.w.oram@intel.com>; Ni, Ray<mailto:ray.ni@intel.com> Subject: [EXTERNAL] Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder Hey Sean, On 10/2/20, 8:37 PM, Sean <spbrogan@outlook.com> wrote: I could imagine a path where edk2-platforms starts using submodules (orIMHO I'm starting to get annoyed at the number of submodules in edk2 at this point. It's getting to the point that we are in danger of needing recursive submodule clones, which are a huge PITA for anyone not using either stuart or EdkRepo. I'd rather not get to that point. Thanks, Nate
|
|
Re: [edk2-devel] [edk2-rfc] [RFC] Request to move MinPlatformPkg out of the Intel folder
Leif Lindholm
On Sun, Oct 04, 2020 at 20:46:50 +0000, Desimone, Nathaniel L wrote:
Hey Hot,If it is being used by any external consumers, then yes edk2 makes perfect sense. It might still make sense to start prototyping that usage in a vendor-neutral section of edk2-platforms. / Leif
|
|
Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder
Hey Sean,
On 10/2/20, 8:37 PM, Sean <spbrogan@outlook.com> wrote: I could imagine a path where edk2-platforms starts using submodules (orIMHO I'm starting to get annoyed at the number of submodules in edk2 at this point. It's getting to the point that we are in danger of needing recursive submodule clones, which are a huge PITA for anyone not using either stuart or EdkRepo. I'd rather not get to that point. Thanks, Nate
|
|
Re: [edk2-devel] [edk2-rfc] [RFC] Request to move MinPlatformPkg out of the Intel folder
Hey Hot,
On 10/1/20, 9:20 PM, Tian, Hot <hot.tian@intel.com> wrote: Edk2 would be a good place as well. Thanks, Nate
|
|
Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder
Sean
Nate,
toggle quoted messageShow quoted text
I would actually propose you go further. In Project Mu we consume MinPlatform as its own repo. This is because it has its own lifetime and spans multiple product generations and hopefully someday multiple architectures/silicon providers. By mixing it in with all the platform code of edk2-platforms it is harder to leverage in other projects. https://github.com/microsoft/mu_common_intel_min_platform I could imagine a path where edk2-platforms starts using submodules (or something with similar properties) and then pulls in the "new" MinPlatform repo. Then as code in the current package gets cleaned up and generalized for the firmware ecosystem it could be moved to the new MinPlatform repo. Another thread with open edk2-platform questions: https://edk2.groups.io/g/devel/message/65544 Thanks Sean
On 9/30/2020 4:17 PM, Nate DeSimone wrote:
Hi Everyone,
|
|
Re: [edk2-devel] [edk2-rfc] [RFC] Request to move MinPlatformPkg out of the Intel folder
Hot Tian
Why not move to edk2 repo?
toggle quoted messageShow quoted text
Thanks, Hot
-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Leif Lindholm Sent: Friday, October 02, 2020 7:26 To: Desimone, Nathaniel L <nathaniel.l.desimone@intel.com> Cc: rfc@edk2.groups.io; devel@edk2.groups.io; Laszlo Ersek <lersek@redhat.com>; Ard Biesheuvel <ard.biesheuvel@arm.com>; Kirkendall, Garrett <garrett.kirkendall@amd.com>; Lendacky, Thomas <thomas.lendacky@amd.com>; thomas.abraham@arm.com; Frank.Orr@dell.com; Jim Dailey <jim.dailey@dell.com>; Abner Chang <abner.chang@hpe.com>; Wang, Sunny (HPS SW) <sunnywang@hpe.com>; Daniel Schaefer <daniel.schaefer@hpe.com>; Liming Gao <gaoliming@byosoft.com.cn>; Tim Lewis <tim.lewis@insyde.com>; Kevin@Insyde <kevin.davis@insyde.com>; Felix Polyudov <felixp@ami.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Oram, Isaac W <isaac.w.oram@intel.com>; Ni, Ray <ray.ni@intel.com> Subject: Re: [edk2-devel] [edk2-rfc] [RFC] Request to move MinPlatformPkg out of the Intel folder On Thu, Oct 01, 2020 at 23:20:01 +0000, Desimone, Nathaniel L wrote: Sounds good.One thing I think is needed for this to move out of Platform/IntelYeah agreed, given that the feedback on this RFC has been pretty It is. It's just the pattern for everything else in edk2-platforms (apart from OptionRomPkg, which was just transplanted from edk2) exists in the form of <section>/$VENDOR/. Platform/MinPlatformPkg would be the only bare package in Platform/.If I was to bikeshed, I'd probably suggestSeems a little superfluous to me... isn't edk2-platforms part of Top man.I think we should see this as a separate step, regardless.Yup, sounds like good next steps to me. I've filed the BZ: Best Regards, Leif
|
|
Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder
Hey Laszlo,
On 9/30/20, 11:54 PM, Laszlo Ersek <lersek@redhat.com> wrote: With regard to the tool refactoring, Leif had the same feedback and I completely agree with both of you. I have filed a BZ to track the tool refactoring as a separate item: https://bugzilla.tianocore.org/show_bug.cgi?id=2992 Thanks, Nate
|
|
Re: [RFC] Request to move MinPlatformPkg out of the Intel folder
Leif Lindholm
On Thu, Oct 01, 2020 at 23:20:01 +0000, Desimone, Nathaniel L wrote:
Sounds good.One thing I think is needed for this to move out of Platform/Intel would be aYeah agreed, given that the feedback on this RFC has been pretty It is. It's just the pattern for everything else in edk2-platformsIf I was to bikeshed, I'd probably suggestSeems a little superfluous to me... isn't edk2-platforms part of TianoCore by definition? 😊 (apart from OptionRomPkg, which was just transplanted from edk2) exists in the form of <section>/$VENDOR/. Platform/MinPlatformPkg would be the only bare package in Platform/. Top man.I think we should see this as a separate step, regardless.Yup, sounds like good next steps to me. I've filed the BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2992 Best Regards, Leif
|
|
Re: [RFC] Request to move MinPlatformPkg out of the Intel folder
Hey Leif,
On 10/1/20, 4:52 AM, " Leif Lindholm" <leif@nuviainc.com> wrote: Happy to hear! I have only been following MinPlatformPkg peripherally - at the time it wasYeah agreed, given that the feedback on this RFC has been pretty positive thus far, I'm planning on making a patch series for this. I'll make these changes part of said patch series. If I was to bikeshed, I'd probably suggestSeems a little superfluous to me... isn't edk2-platforms part of TianoCore by definition? 😊 I think we should see this as a separate step, regardless.Yup, sounds like good next steps to me. I've filed the BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2992 Thanks, Nate
|
|
Re: [edk2-devel] [RFC] Request to move MinPlatformPkg out of the Intel folder
christian.walter@...
Hi Nate,
toggle quoted messageShow quoted text
totally agree with you. Best, Chris
On 10/1/20 9:43 AM, Wim Vervoorn wrote:
Hi Nate, --
*Christian Walter* *Head of Firmware Development / Cyber Security * 9elements GmbH, Kortumstraße 19-21, 44787 Bochum, Germany Email: christian.walter@9elements.com Phone: _+49 234 68 94 188 <tel:+492346894188>_ Mobile: _+49 176 70845047 <tel:+4917670845047>_ Sitz der Gesellschaft: Bochum Handelsregister: Amtsgericht Bochum, HRB 17519 Geschäftsführung: Sebastian Deutsch, Eray Basar Datenschutzhinweise nach Art. 13 DSGVO <https://9elements.com/privacy>
|
|
Re: [RFC] Request to move MinPlatformPkg out of the Intel folder
Wim Vervoorn <wvervoorn@...>
Hi Nate,
toggle quoted messageShow quoted text
I agree this sounds like a good plan. The MinPlatform should be as generic as possible and suitable for all architectures. In fact it is similar to the UEFIPayload package wich is also standalone. Best Regards, Wim Vervoorn Eltan B.V. Ambachtstraat 23 5481 SM Schijndel The Netherlands T : +31-(0)73-594 46 64 E : wvervoorn@eltan.com W : http://www.eltan.com "This message contains confidential information. Unless you are the intended recipient of this message, any use of this message is strictly prohibited. If you have received this message in error, please immediately notify the sender by telephone +31-(0)73-5944664 or reply email, and immediately delete this message and all copies."
-----Original Message-----
From: rfc@edk2.groups.io [mailto:rfc@edk2.groups.io] On Behalf Of Nate DeSimone Sent: Thursday, October 1, 2020 1:17 AM To: devel@edk2.groups.io; rfc@edk2.groups.io Cc: Leif Lindholm <leif@nuviainc.com>; Laszlo Ersek <lersek@redhat.com>; Ard Biesheuvel <ard.biesheuvel@arm.com>; Kirkendall, Garrett <garrett.kirkendall@amd.com>; Lendacky, Thomas <thomas.lendacky@amd.com>; thomas.abraham@arm.com; Frank.Orr@dell.com; Jim Dailey <jim.dailey@dell.com>; Abner Chang <abner.chang@hpe.com>; Wang, Sunny (HPS SW) <sunnywang@hpe.com>; Daniel Schaefer <daniel.schaefer@hpe.com>; Liming Gao <gaoliming@byosoft.com.cn>; Tim Lewis <tim.lewis@insyde.com>; Kevin@Insyde <kevin.davis@insyde.com>; Felix Polyudov <felixp@ami.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Oram, Isaac W <isaac.w.oram@intel.com>; Ni, Ray <ray.ni@intel.com> Subject: [edk2-rfc] [RFC] Request to move MinPlatformPkg out of the Intel folder Hi Everyone, This has come up informally a couple of times already, but I do think that it would be beneficial to move MinPlatformPkg out of the Platform/Intel folder and into a vendor neutral folder. MinPlatform really isn't Intel specific, it's just "middleware" that is intended to make it easier and faster to build EDK II based firmware. We have always intended MinPlatform to be vendor neutral, and it would be great to see MinPlatform based implementations for non-Intel silicon. Anyone working with EDK II should feel welcome to work with us on MinPlatform, regardless of the SoC in use. To that end, I propose that we move MinPlatformPkg out of edk2-platforms/Platform/Intel to edk2-platforms/Platform/MinPlatformPkg. It might also make sense to move edk2-platforms/Platform/Intel/Tools and edk2-platforms/Platform/Intel/build_bios.py to edk2-platforms/Platform as well since those are all useful for building MinPlatform based firmware, but I could also see that being something for another time. Let me know what you think! Thanks, Nate
|
|
Re: [RFC] Request for new git repository for EdkRepo
Bjorge, Erik C
I am fine with a new repo. This also supports a good workflow to get a tool that then lets you pull full platforms. In theory you would only ever really need to clone a single repo manually (assuming reasonable manifest support).
toggle quoted messageShow quoted text
Are you also looking at creating a separate manifest repo as well or just creating a manifest branch in the new EdkRepo repository? Thanks, -Erik
-----Original Message-----
From: Desimone, Nathaniel L <nathaniel.l.desimone@intel.com> Sent: Wednesday, September 30, 2020 2:56 PM To: devel@edk2.groups.io; rfc@edk2.groups.io Cc: Desimone, Ashley E <ashley.e.desimone@intel.com>; Bjorge, Erik C <erik.c.bjorge@intel.com> Subject: [RFC] Request for new git repository for EdkRepo Hi Everyone, Given that EdkRepo has existed in the project for over a year now (in edk2-staging) I think it is time to get out of staging. I have considered multiple possible landing zones: 1. edk2 2. edk2-pytool-library 3. A new repository Edk2 does not seem like a good location as EdkRepo isn't strictly necessary to build EDK II, and I think all of us would prefer that edk2 not become a dumping ground. I have talked with the other maintainers of edk2-pytool-library and they would prefer that EdkRepo not enter that repository because EdkRepo does not have a robust set of unit tests yet and they don't want their test coverage metrics to decline. Therefore, the best choice seems to be a new repository. As always if anyone has comments they are welcome! Thanks, Nate
|
|
Re: [RFC] Request to move MinPlatformPkg out of the Intel folder
Leif Lindholm
Hi Nate,
On Wed, Sep 30, 2020 at 23:17:15 +0000, Desimone, Nathaniel L wrote: This has come up informally a couple of times already, but I doVery positive to this on the whole. I have only been following MinPlatformPkg peripherally - at the time it was merged, I did not have the bandwidth to look into it and help make it cross-architecture from the start, so I mostly refrained from comment. One thing I think is needed for this to move out of Platform/Intel would be a ReadMe.rst describing the intended real-world use. Some of this lives in Platform/Intel/Readme.md today. Could we start with a set moving this text into a separate file under MinPlatformPkg and rework that into something that stands on its own? To that end, I propose that we move MinPlatformPkg out ofIf I was to bikeshed, I'd probably suggest Platform/TianoCore/MinPlatformPkg. Oops, guess I did. It might also make sense toI think we should see this as a separate step, regardless. I do think we should be able to do better on sharing some of this platform image tooling cross-architecture (even moreso now Risc-V is involved), but I would prefer for us to spend the effort of identifying the intersections upfront before we start uploading tools to places where they look generic and may confuse people. Maybe we should raise this part as a BZ? Best Regards, Leif
|
|