Integrate major branch changes into main [REBASE & FF] by cfernald · Pull Request #1671 · OpenDevicePartnership/patina

cfernald · 2026-07-30T19:50:48Z

Description

Merged the following changes from the major branch

PR #1628 — [major] Refactor performance into core service

Description

This PR addresses multiple issues with the current performance structure:

Performance data is not available until the component is dispatched. This can cause significant
misrepresentation of the DXE execution time and cause events from images to be lost if not
dispatched in the first loop.
Performance implementations in the SDK require SDK statics, which is generally an SDK antipattern.

This PR does the following:

Moves the core performance implementation into the core, into a new struct named CorePerformance,
following the pattern established by the timer and memory management.
Creates a new service trait PerformanceMeasurement that exposes this core support.
Updates the component to now use this core service to produce the protocol & publish tables.
Change initialization and configuration of performance measurements to be done by the core.
Updates all documentation according to these changes.
Some smaller rework and restructuring.

Resolves: #1483

Reviewing this PR

This PR is intended to be merged as a single commit. The individual commits do attempt to follow a
basic progression of the code rework but may be incomplete at the partial steps. Recommended review flow:

Start with the new theory of operation md (performance_measurement.md) to understand the intended structure.
Review the new service interface (PerformanceMeasurement).
Review the new core implementation.
Review the changes to the component to consume the new service.

PR #1630 — [major] Remove `SerialIO` interior mutability and cleanup serial implementations [REBASE & FF]

Description

Change SerialIO trait to be mutable

The current SerialIO implementation takes &self instead of &mut self for its methods, forcing
all serial implementations to implement interior mutability. However, because of the nature of the
serial port use cases, the typical locking mechanisms that avoid deadlocks, such as the TplMutex,
are not readily accessible. Because of this, internal implementations have one-off, and at times
questionable, interior mutability implementations.

This commit removes the expectation on the serial port to ensure this, and instead provides a
re-usable SharedSerial wrapper that implements interior mutability in a suitable way for serial
port use cases.

patina: Simplify serial implementations

This commit takes advantage of the new mutable references to cleanup the serial port implementations.
Namely by dropping re-initialization of interior references used as a workaround for the lack of
mutability in the SerialIO trait.

patina: split uart module submodules

This commit splits the null, 16550, and pl011 UART implementations into their own submodules under
the uart module. This better aligns to general code organization practices. This additionally
removes some unnecessary conditional complication.

PR #1643 — [major] patina_debugger: remove deprecated `without_transport_init` function

Description

This PR removes the deprecated without_transport_init function for the next major release. This
function is now a no-op and the inverse function with_transport_init is now the control for this behavior.

PR #1646 — [major] Refactor Patina SDK for stronger code organization [REBASE & FF]

Description

This PR organizes the SDK into well-defined modules, and moves code and modules into their appropriate location.

The main goals of this refactor are to:

Introduce better hierarchy for modules for definitions based on their use.
Normalize paths between modules for consistency.
Standardize naming conventions.
Document these decisions for future consistency.

Reviewing this PR

The commits have been organized into a basic pattern for the sake of review. All the Patina SDK
changes are kept in their own commits and all the mass-edits for consumers are kept in separate
squash: ... commits. This is to keep the core changes clear and reviewable; these are squashed
into their respective change before merging.

There are three significant steps in this PR:

Republish r_efi
Move files to individual modules
Refactor code and names in modules for consistency

Top level modules

Module	Description
arch	Abstractions for architecture specific functionality (e.g. caching) and architecture specific functions.
component	Component and service definitions for the dependency-injected component model.
debug	Macros and definitions for logging and diagnostics.
management_mode	Definitions for Management Mode (MM/SMM) interactions.
mmio	Re-export of the safe-mmio crate for memory-mapped I/O access.
performance	Performance measurement types, records, and related GUIDs.
peripheral	Abstractions and implementations for core device operations.
pi	Platform Initialization (PI) specification definitions and wrappers.
uefi	UEFI specification definitions and wrappers.

A detailed before/after view of the "New Patina Structure" is included in the original PR, showing the
reorganization of files (e.g. serial.rs → standard.rs, uefi_protocol → protocol,
protocols → protocol, new peripheral and debug modules, r_efi re-export via standard, etc.).

PR #1660 — [major] Remove unnecessary protocol definitions from SDK

Description

Moves several protocol definitions from the uefi module in the SDK to their appropriate location:

DecompressProtocol: A duplicate definition with r_efi that carried implementation details that were not needed in the SDK.
- Switched to use the r_efi version directly.
- Moved implementation to dxe_core.
EdkiiPerformanceMeasurementProtocol: An EDKII protocol, that should only be produced and not consumed by Patina code.
- Moved the definition to patina_performance that produces the protocol.
StatusCodeRuntimeProtocol: A wrapper around the PI definition providing a convenience function.
- Moved the convenience function directly onto the pi module definition.

PR #1666 — [major] SDK Refactor: Republish base, update consumers, and cleanup [REBASE & FF]

Description

Second phase of large Patina SDK refactor, including:

Add CorePerformance to services

The performance refactor left out declaring the CorePerformance service in the derive service macro
for CorePerformance. This commit simply adds the missing service declaration.

SDK Refactor: Consume r_efi republish from patina crate

This commit changes all uses of r_efi in the patina repo to instead use the r_efi republished from
the patina crate, and removes r_efi from individual cargo dependencies.

SDK Refactor: Publish all of base from Patina root

This commit republishes all of Patina::base::* from the Patina root. This flattens callers' imports
and makes accessing common base types easier.

patina: Scope allow(static_mut_refs) only to necessary tests

Moves the global #![allow(static_mut_refs)] attributes to the test modules that require it, rather
than having it at the crate level. This change improves code safety and clarity by limiting the scope
of this allowance to only where it's needed.

PR #1669 — [major] Breaking changes for Patina SDK UEFI Strings [Rebase & FF]

Description

Breaking changes to use the new UEFI string
types that have been deferred until this PR to the major branch.

sdk: Use Patina SDK UEFI string types in public APIs

This is a breaking change to public APIs in the SDK to use the new UEFI string types where appropriate.

patina_dxe_core: Use Char16Str in filesystems::SimpleFile::open

This is a breaking change to use &Char16Str as the filename. Some other minor integrating changes in
patina_dxe_core for the new Patina SDK UEFI string types are included.

components: Integrate Patina SDK UEFI string changes

Updates the code to use the new string types modified in public APIs used by components that were made
as breaking changes.

PR #1674 — [major] Update the MSRV to 1.90.0

Description

Closes #1673

Updates the Minimum Supported Rust Version (MSRV) to 1.90.0. This update is being made at this time to
allow dependencies with an MSRV of 1.90.0 that have security advisories to be updated.

How This Was Tested

Integration Instructions

Performance Refactor

Platforms must change use of with_measurements from the patina_performance to instead override PlatformInfo::default_performance_config()

`SerialIO` Trait Changes

All custom SerialIO implementations should drop any interior mutalability and adopt the &mut self references.
Users of Uart16550 must swap to the new new_io and new_mmio instantiations.

Debugger Changes

Callers should remove use of without_transport_init which is already deprecated

Patina SDK Refactor

This change consists of major refactoring to the SDK. Consumers should ensure the following

Consume standard::efi instead of using r_efi to ensure consistent compilation.

Update all references to modules moved to their new location. See the "New Patina Structure" above for reference.
Update all renamed structures to conform to their new convention-based name

It is not practical to enumerate all possible changes here, but if there is any ambiguity, reach out to the core Patina team.

String Based Interface Changes

Review the public API changes and adjust consuming code accordingly. Any callers in the patina repo are updated in this PR.

Rust Version

MSRV Updated to 1.9. Consumers must update as well.

patina-automation · 2026-07-30T19:50:58Z

QEMU Validation Failed

QEMU validation did not complete successfully or did not shutdown as expected.

Workflow run: https://github.com/OpenDevicePartnership/patina/actions/runs/30662770960

⚠️ Build Failure Detected

The Setup and Build patina-dxe-core-qemu step failed in the following job(s):

Run Patina QEMU Validation / Validate QEMU Q35 (Windows)
Run Patina QEMU Validation / Validate QEMU - ArmVirt (Linux)
Run Patina QEMU Validation / Validate QEMU - Q35 (Linux)

Build logs are available in the workflow run artifacts:

Download the log artifacts from the workflow run to review the build output and
determine whether the error is expected.

Is this expected? If the PR introduces breaking changes to patina that
require a corresponding update to patina-dxe-core-qemu,
the build failure is expected.

Contact a repo admin or PR reviewer to override the Patina QEMU PR Validation status check.

Job Results

Job	Result
Gather Incoming PR Metadata	✅
Run Patina QEMU Validation / Post In-Progress Notification	✅
Run Patina QEMU Validation / Preflight Checks	✅
Run Patina QEMU Validation / Get Constants / Get Repository Constants	✅
Run Patina QEMU Validation / Validate QEMU Q35 (Windows)	❌
Run Patina QEMU Validation / Validate QEMU - ArmVirt (Linux)	❌
Run Patina QEMU Validation / Validate QEMU - Q35 (Linux)	❌
Run Patina QEMU Validation / Emit PR Metadata	✅

Error Details

qemu-validation-logs-Windows-Q35/q35-windows.log (5 error/warning sections)

error[E0432]: unresolved import `patina::boot_services`
  --> src\q35\component\service\smbios_test.rs:17:13
   |
17 | use patina::boot_services::{BootServices, StandardBootServices};
   |             ^^^^^^^^^^^^^ could not find `boot_services` in `patina`


error[E0603]: module `base` is private
  --> src\q35\component\service\mm_config_provider.rs:96:50
   |
96 |                     hob.pages as usize * patina::base::UEFI_PAGE_SIZE,
   |                                                  ^^^^ private module
   |
note: the module `base` is defined here
  --> D:\a\patina\patina\sdk\patina\src\lib.rs:21:1
   |
21 | mod base;
   | ^^^^^^^^
help: consider importing this constant instead
   |
96 -                     hob.pages as usize * patina::base::UEFI_PAGE_SIZE,
96 +                     hob.pages as usize * patina::UEFI_PAGE_SIZE,
   |


error: could not compile `qemu_dxe_core` (lib) due to 2 previous errors

warning: build failed, waiting for other jobs to finish...

[cargo-make] ERROR - Error while running duckscript: Source: Unknown Line: 113 - Error while executing command, exit code: 101

qemu-validation-logs-Linux-ArmVirt/armvirt-linux.log (5 error/warning sections)

error[E0432]: unresolved import `patina::boot_services`
  --> src/q35/component/service/smbios_test.rs:17:13
   |
17 | use patina::boot_services::{BootServices, StandardBootServices};
   |             ^^^^^^^^^^^^^ could not find `boot_services` in `patina`


error[E0603]: module `base` is private
  --> src/q35/component/service/mm_config_provider.rs:96:50
   |
96 |                     hob.pages as usize * patina::base::UEFI_PAGE_SIZE,
   |                                                  ^^^^ private module
   |
note: the module `base` is defined here
  --> /__w/patina/patina/sdk/patina/src/lib.rs:21:1
   |
21 | mod base;
   | ^^^^^^^^
help: consider importing this constant instead
   |
96 -                     hob.pages as usize * patina::base::UEFI_PAGE_SIZE,
96 +                     hob.pages as usize * patina::UEFI_PAGE_SIZE,
   |


error: could not compile `qemu_dxe_core` (lib) due to 2 previous errors

warning: build failed, waiting for other jobs to finish...

[cargo-make] ERROR - Error while running duckscript: Source: Unknown Line: 113 - Error while executing command, exit code: 101

qemu-validation-logs-Linux-Q35/q35-linux.log (5 error/warning sections)

error[E0432]: unresolved import `patina::boot_services`
  --> src/q35/component/service/smbios_test.rs:17:13
   |
17 | use patina::boot_services::{BootServices, StandardBootServices};
   |             ^^^^^^^^^^^^^ could not find `boot_services` in `patina`


error[E0603]: module `base` is private
  --> src/q35/component/service/mm_config_provider.rs:96:50
   |
96 |                     hob.pages as usize * patina::base::UEFI_PAGE_SIZE,
   |                                                  ^^^^ private module
   |
note: the module `base` is defined here
  --> /__w/patina/patina/sdk/patina/src/lib.rs:21:1
   |
21 | mod base;
   | ^^^^^^^^
help: consider importing this constant instead
   |
96 -                     hob.pages as usize * patina::base::UEFI_PAGE_SIZE,
96 +                     hob.pages as usize * patina::UEFI_PAGE_SIZE,
   |


error: could not compile `qemu_dxe_core` (lib) due to 2 previous errors

warning: build failed, waiting for other jobs to finish...

[cargo-make] ERROR - Error while running duckscript: Source: Unknown Line: 113 - Error while executing command, exit code: 101

Dependencies

Repository	Ref
patina	`1e631a0`
patina-dxe-core-qemu	`f11ec63`
patina-fw-patcher	`d06ba7e`
patina-qemu firmware	`v4.0.5`
patina-qemu build script	`d629f65`

This comment was automatically generated by the Patina QEMU PR Validation Post workflow.

codecov · 2026-07-30T19:58:03Z

Codecov Report

❌ Patch coverage is 88.89655% with 161 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ts/patina_performance/src/component/performance.rs	79.14%	39 Missing ⚠️
patina_dxe_core/src/performance.rs	93.78%	23 Missing ⚠️
sdk/patina/src/peripheral/serial/virtio.rs	71.15%	15 Missing ⚠️
sdk/patina/src/pi/protocol/status_code.rs	68.57%	11 Missing ⚠️
components/patina_smbios/src/smbios_record.rs	66.67%	7 Missing ⚠️
patina_dxe_core/src/performance/table.rs	91.76%	7 Missing ⚠️
...dk/patina/src/peripheral/serial/uart/uart_16550.rs	78.12%	7 Missing ⚠️
patina_dxe_core/src/misc_boot_services.rs	40.00%	6 Missing ⚠️
...mponents/patina_performance/src/component/table.rs	86.49%	5 Missing ⚠️
sdk/patina/src/performance/record.rs	83.87%	5 Missing ⚠️
... and 23 more

📢 Thoughts on this report? Let us know!

makubacki · 2026-07-31T02:07:05Z

Since we've already reviewed the content changes, I was mostly looking at commit organization and high-level changes.

patina_debugger: remove deprecated without_transport_init function
- Wording in the commit message could be clearer: "This function removes the deprecated without_transport_init function"
patina: Simplify serial implementations
- Typo in commit message: "This commit takes advantage of the new mutabl references"
patina: minor corrections to UEFI spec definitions
- This one could just be titled "patina: Change IncompatibleError to IncompatibleVersion" since that's all it does.
Could SDK Refactor: Consume r_efi republish from patina crate be squashed into Patina: republish r_efi from SDK? There is a squash note in the commit message.
It also seems like squashing SDK Refactor: Publish all of base from Patina root into SDK Refactor: Organize and normalize definitions between modules would clean up history overall as many of the lines changed were just set to use base in the former commit.

cfernald · 2026-07-31T19:33:36Z

@makubacki, I've implemented your suggestions.

The current `SerialIO` implementation takes `&self` instead of `&mut self` for its method, forcing all serial implementations to implement interior mutability. However, because of the nature of the serial port use cases, the typical locking mechanisms that avoid deadlocks, such as the `TplMutex` is not readily accessible. Because of this, internal implementations have one-off, and at times questionable, interior mutability implementations. This commit removes the expectation on the serial port to ensure this, and instead provides a re-usable `SharedSerial` wrapper that implements interior mutability in a suitable way for serial port use cases.

This commit takes advantage of the new mutable references to cleanup the serial port implementations. Namely by dropping re-initialization of interior references used as a workaround for the lack of mutability in the `SerialIO` trait.

This commit splits the null, 16550, and pl011 UART implementations into their own submodules under the `uart` module. This better aligns to general code organization practices. This additionally removes some unnecessary conditional complication. This commit also adds some basic tests for the uart implementations.

…penDevicePartnership#1643) This commit removes the deprecated `without_transport_init` function. This function is now a no-op and the inverse function `with_transport_init` is now the control for this behavior.

This commit addresses multiple issues with the current performance structure 1. Performance data is not available until the component is dispatched. This can cause significant misrepresentation of the DXE execution time and cause events from images to be lost if not dispatched in the first loop. 2. Performance implementations in the SDK require SDK statics, which is generally an SDK antipattern. This is address by the following: 1. Moves the core performance implementation into the core, into a new struct names `CorePerformance`, following the pattern established by the timer and memory management. 2. Creates a new service trait `PerformanceMeasurement` that exposes this core support. 3. Updates the component to now use this core service to produce the protocol & publish tables. 4. Change initialization and configuration of performance measurements to be done by the core. 5. Updates all documentation according to these changes 6. Some smaller rework and restructuring

This commit introduces a new `standard` module in the Patina SDK, which re-exports the `r_efi` crate. This is in it's own module to be able to communicate the fact that this is contains standard without Patina-specific extension. This commit also updates all uses of r_efi in the patina repro to instead use the r_efi republished from the patina crate, and removing r_efi from individual cargo dependencies.

…lity This commit creates well-defined top-level modules, documents them, and moves existing modules and implementations into their new appropriate locations. This commit additionally clarifies comments in various modules for this refactor.

This updates the name of the error type from `IncompatibleError` to `IncompatibleVersion` to match the specification name.

This commit re-organizes the SDK to better align definitions to their respective modules, and normalized the naming and paths of definitions. All of the `Patina::base::*` is republished from the Patina root. This flattens callers' imports and makes accessing common base types easier.

…ip#1660) Moves several protocol definitions from the `uefi` module in the SDK and move to their appropriate location: - `DecompressProtocol`: A duplicate definition with `r_efi` that carried implementation details that were not needed in the SDK. - Switched to use the `r_efi` version directly - moved implementation to dxe_core - `EdkiiPerformanceMeasurementProtocol`: An EDKII protocol, that should only be produced and not consumed by Patina code - Moved the definition to `patina_performance` that produces the protocol. - `StatusCodeRuntimeProtocol`: A wrapper around the PI definition providing a convenience function - Moved the convenience function directly onto the `pi` module definition

Moves the global `#![allow(static_mut_refs)]` attributes to the test modules that require it, rather than having it at the crate level. This change improves code safety and clarity by limiting the scope of this allowance to only where it's needed.

This is a breaking change to public APIs in the SDK to use the new UEFI string types where appropriate. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

This is a breaking change to use `&Char16Str` as the filename. Some other minor integrating changes in patina_dxe_core for the new Patina SDK UEFI string types are included. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

Updates the code to use the new string types modified in public APIs used by components that were made as breaking changes. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

## Description Closes OpenDevicePartnership#1673 Updates the Minimum Supported Rust Version (MSRV) to 1.90.0. This update is being made at this time to allow dependencies with an MSRV of 1.90.0 that have security advisories to be updated. - [x] Impacts functionality? - [ ] Impacts security? - [ ] Breaking change? - [ ] Includes tests? - [ ] Includes documentation? ## How This Was Tested - `cargo make all` ## Integration Instructions - N/A Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

makubacki · 2026-07-31T20:33:48Z

Overriding Patina QEMU PR Validation since build failure in patina-dxe-core-qemu is expected as this is merging breaking changes in the major branch into main.

github-actions Bot added impact:breaking-change Requires integration attention impact:testing Affects testing type:documentation Improvements or additions to documentation labels Jul 30, 2026

cfernald marked this pull request as draft July 30, 2026 19:51

cfernald force-pushed the major_main branch from ffea162 to 02749c5 Compare July 30, 2026 22:14

cfernald marked this pull request as ready for review July 30, 2026 22:16

cfernald requested review from Javagedes, makubacki, os-d and vineelko July 30, 2026 22:16

cfernald changed the title ~~Integrate major branch changes into main~~ Integrate major branch changes into main [REBASE & FF} Jul 30, 2026

cfernald changed the title ~~Integrate major branch changes into main [REBASE & FF}~~ Integrate major branch changes into main [REBASE & FF] Jul 30, 2026

cfernald force-pushed the major_main branch from 02749c5 to 413670a Compare July 31, 2026 19:33

makubacki mentioned this pull request Jul 31, 2026

--no-default-features updates for tests [Rebase & FF] #1677

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makubacki approved these changes Jul 31, 2026

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cfernald added 11 commits July 31, 2026 13:08

patina: Simplify serial implementations

a5f8b29

This commit takes advantage of the new mutable references to cleanup the serial port implementations. Namely by dropping re-initialization of interior references used as a workaround for the lack of mutability in the `SerialIO` trait.

patina_debugger: remove deprecated without_transport_init function (O…

84a1126

…penDevicePartnership#1643) This commit removes the deprecated `without_transport_init` function. This function is now a no-op and the inverse function `with_transport_init` is now the control for this behavior.

patina: Change IncompatibleError to IncompatibleVersion

f3d6b75

This updates the name of the error type from `IncompatibleError` to `IncompatibleVersion` to match the specification name.

makubacki added 4 commits July 31, 2026 13:08

sdk: Use Patina SDK UEFI string types in public APIs

0c6f74d

This is a breaking change to public APIs in the SDK to use the new UEFI string types where appropriate. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

components: Integrate Patina SDK UEFI string changes

86daf5c

Updates the code to use the new string types modified in public APIs used by components that were made as breaking changes. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

cfernald force-pushed the major_main branch from 413670a to 1e631a0 Compare July 31, 2026 20:08

vineelko approved these changes Jul 31, 2026

View reviewed changes

makubacki merged commit d325bcb into OpenDevicePartnership:main Jul 31, 2026
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Integrate major branch changes into main [REBASE & FF] - #1671

Integrate major branch changes into main [REBASE & FF]#1671
makubacki merged 15 commits into
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cfernald commented Jul 30, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Description

PR #1628 — [major] Refactor performance into core service

Description

Reviewing this PR

PR #1630 — [major] Remove SerialIO interior mutability and cleanup serial implementations [REBASE & FF]

Description

PR #1643 — [major] patina_debugger: remove deprecated without_transport_init function

Description

PR #1646 — [major] Refactor Patina SDK for stronger code organization [REBASE & FF]

Description

PR #1660 — [major] Remove unnecessary protocol definitions from SDK

Description

PR #1666 — [major] SDK Refactor: Republish base, update consumers, and cleanup [REBASE & FF]

Description

PR #1669 — [major] Breaking changes for Patina SDK UEFI Strings [Rebase & FF]

Description

PR #1674 — [major] Update the MSRV to 1.90.0

Description

How This Was Tested

Integration Instructions

Performance Refactor

SerialIO Trait Changes

Debugger Changes

Patina SDK Refactor

String Based Interface Changes

Rust Version

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PR #1630 — [major] Remove `SerialIO` interior mutability and cleanup serial implementations [REBASE & FF]

PR #1643 — [major] patina_debugger: remove deprecated `without_transport_init` function

`SerialIO` Trait Changes

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