Re: [edk2-devel] [Wiki][Patch V2] Add EDK II Code First Process Wiki Page

Andrew Fish <afish@...>

On Aug 10, 2020, at 11:36 AM, Samer El-Haj-Mahmoud <> wrote:


Looks good as a starting point!

Acked-by: Samer El-Haj-Mahmoud < <>>

I do have a few questions on this sentence: "Specification text changes are held within the affected source repository, using the GitHub flavor of markdown, in a file (or split across several files) with .md suffix."

- For TianoCore, is the "affected source repository" this sentence is referring to edk2-staging, or edk2?

- If the proposed specification and associated code starts in a branch in edk2-staging respiratory, when does it get accepted into edk2/edk2-platforms? Is it when the proposed specification change reaches a certain status (such as "accepted by industry standard forum"), or when the formal specification (with that proposed change) is published by the UEFI Forum ?

While in the “code 1st state” there are BZ# prefixes to types and globals. So when the code ends up in the specification the “code 1st” branch is going to need to get cleaned up for naming, and I assume we could remove the MD files before a patch is submitted to the edk2.

We made extra work for ourselves, but we wanted it to be clear what was work in progress.


Andrew Fish

- Any guidance on the specification text md file(s) names (and location) within the repository?

- If the change includes some graphics, is there any guidance on inclusion of the graphics files in the repository?


-----Original Message-----
From: <> < <>> On Behalf Of Michael
D Kinney via <>
Sent: Friday, August 7, 2020 9:07 PM
To: <>; Kinney, Michael D
< <>>; <>
Cc: Laszlo Ersek < <>>; Andrew Fish < <>>;
Leif Lindholm < <>>
Subject: Re: [edk2-devel] [Wiki][Patch V2] Add EDK II Code First Process
Wiki Page

A version of this Wiki page is also provided here for review:


-----Original Message-----
From: <> On Behalf Of
D Kinney
Sent: Friday, August 7, 2020 6:05 PM
Cc: Laszlo Ersek <>; Andrew Fish <>;
Leif Lindholm <>
Subject: [edk2-devel] [Wiki][Patch V2] Add EDK II Code First Process
Wiki Page

Based on the following RFC:

Additional updates:
* Add examples of all specifications currently maintained by
the UEFI Forums.
* Added specification change template using a CC-BY-4.0 license.
* Add source code example for an enum value
* Minor grammar updates to change from an RFC proposal to an
active process.

Cc: Laszlo Ersek <>
Cc: Andrew Fish <>
Cc: Leif Lindholm <>
Signed-off-by: Michael D Kinney <>
--- | 182
1 file changed, 182 insertions(+)
create mode 100644

diff --git a/
b/ new file mode 100644 index
--- /dev/null
+++ b/
@@ -0,0 +1,182 @@
+The EDK II Code First Process is a process by which new features can
+be added to UEFI Forum specifications after first having been
+designed and prototyped in the open.
+This process lets changes and the development of new features happen
+in the open, without violating the UEFI forum bylaws which prevent
+publication of code for in-draft features/changes.
+The process does not in fact change the UEFI bylaws - the change is
+that the development (of both specification and code) happens in the
+open. The resulting specification update is then submitted to the
+appropriate working group as an Engineering Change Request (ECR), and
+voted on. For the UEFI Forum, this is a change in workflow, not a change
in process.
+ECRs are tracked in a UEFI Forum Mantis instance, access restricted
+to UEFI Forum Members. TianoCore enables this new process by
+providing areas on [TianoCore
+Bugzilla]( to track both specification
+updates and reference implementations and new repositories under
[TianoCore GitHub]( dedicated to hold "code
+# TianoCore Bugzilla
+[TianoCore Bugzilla]( has a product categories
+ * ACPI Specification
+ * UEFI Shell Specification
+ * UEFI Platform Initialization Distribution Packaging Specification
+ * UEFI Platform Initialization Specification Specification
+ * UEFI Specification
+Each product category has separate components for
+ * Specification
+ * Reference implementation
+# TianoCore GitHub
+Reference implementations targeting the EDK II open source project
+are held in branches in the
+Additional repositories for implementing reference features in
+additional open source projects can be added in the future, as required.
+Specification text changes are held within the affected source
+repository, using the GitHub flavor of markdown, in a file (or split
+across several files) with .md suffix. Multiple files are required
+if changes impact multiple specifications or if the specification is
+large and is easier to maintain if the changes are split across multiple
+* NOTE: This one may break down where we have a specification change
+ multiple specifications, but at that point we can track it with
+ TianoCore Bugzilla entries.
+## Specification Text Template
+The following is a template of specification text changes using the
+GitHub flavor of markdown. The title and complete description of the
+specification changes must be provided in the specification text
+along with the name and version of the specification the change
+applies. The `Status` of the specification change always starts in
+the `Draft` state and is updated based on feedback from the industry
+standard forums. The contents of the specification text are required
+to use the [Creative Commons Attribution 4.0
+license using a `SPDX-License-Identifier` statement.
+# Title: [Must be Filled In]
+# Status: [Status]
+[Status] must be one of the following:
+* Draft
+* Submitted to industry standard forum
+* Accepted by industry standard forum
+* Accepted by industry standard forum with modifications
+* Rejected by industry standard forum
+# Document: [Title and Version]
+Here are some examples of [Title and Version]:
+* UEFI Specification Version 2.8
+* ACPI Specification Version 6.3
+* UEFI Shell Specification Version 2.2
+* UEFI Platform Initialization Specification Version 1.7
+* UEFI Platform Initialization Distribution Packaging Specification
+Version 1.1
+# License
+SPDX-License-Identifier: CC-BY-4.0
+# Submitter: [TianoCore Community](
+# Summary of the change
+Required Section
+# Benefits of the change
+Required Section
+# Impact of the change
+Required Section
+# Detailed description of the change [normative updates]
+Required Section
+# Special Instructions
+Optional Section
+# Intended workflow
+The entity initiating a specification change enters a Bugzilla in the
+appropriate area of [TianoCore Bugzilla](
+This entry contains the outline of the change, and the full initial draft
text is attached.
+If multiple specification updates are interdependent, especially if
+between different specifications, then multiple Bugzilla entries should be
+These Bugzilla entries *must* be linked together with dependencies.
+After the Bugzillas have been created, new branches should be created
+in the relevant repositories for each Bugzilla. The branch names
+must use the following format where #### is the Bugzilla ID and
+<Brief Description> is an optional description of the change.
+ BZ####-<Brief Description>
+If multiple Bugzilla entries must coexist on a single branch, one of
+them is designated the _top-level_, with dependencies properly
+tracked. That Bugzilla is be the one naming the branch.
+# Source Code
+In order to ensure draft code does not accidentally leak into
+production use, and to signify when the changeover from draft to
+final happens, *all* new or modified[1] identifiers must be prefixed with
the relevant BZ#### identifiers.
+* [1] Modified in a non-backwards-compatible way. If, for example, a
+ sized array is grown - this does not need to be prefixed. But a tag in a
+ comment would be *highly* recommended.
+## File names
+New public header files require the prefix (i.e.
+Private header files do not need the prefix.
+## Contents
+The tagging must follow the coding style used by each affected code
+| Released in spec | Draft version in tree | Comment |
+| --- | --- | --- |
+| `FunctionName` | `Bz1234FunctionName` | |
+For data structures or enums, any new or non-backwards-compatible
+structs or fields require a prefix. As above, growing an existing
+array in an existing struct requires no prefix.
+| Released in spec | Draft version in tree | Comment |
+| --- | --- | --- |
+| `typedef SOME_STRUCT` | `BZ1234_SOME_STRUCT` | Typedef only [2]
+| `StructField` | `Bz1234StructField` | In existing struct[3] |
+| `typedef SOME_ENUM` | `BZ1234_SOME_ENUM` | Typedef only [2]
+| `EnumValue` | `BzEnumValue` | In existing enum[3] |
+* [2] If the struct or enum definition is separate from the typedef in the
+ header, the definition does not need the prefix.
+* [3] Individual fields in newly added struct or enum do not need prefix,
+ struct or enum already carried the prefix.
+Variable prefixes indicating global scope ('g' or 'm') go before the BZ
+| Released in spec | Draft version in tree | Comment |
+| --- | --- | --- |
+| `gSomeGuid` | `gBz1234SomeGuid` | |
+Local identifiers, including module-global ones (m-prefixed) do not
+require a BZ prefix.

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