patina-v8.3.0
What's Changed
-
RFC: Remove `FunctionComponent` Component implementation @Javagedes (#741)
Change Details
## Description
RFC to remove the
FunctionComponentimplementation so that only structures (with or without internal state) can be used as a componentCurrent RFC State: FCP
</blockquote> <hr> </details>
-
chore: Release @joschock (#771)
Change Details
## Description
Release chore for 8.2.0
- Impacts functionality?
- Impacts security?
- Breaking change?
- Includes tests?
- Includes documentation?
How This Was Tested
N/A - version bumps only.
Integration Instructions
N/A
</blockquote> <hr> </details>
🚀 Features & ✨ Enhancements
-
GCD: Follow edk2 Attribute Behavior for Compat @os-d (#775)
Change Details
## Description
edk2 has a behavior where if SetMemorySpaceAttributes() is called with only virtual attributes set, then the page table is not updated (as 0 is a valid value in the page table attrs: RWX).
Patina needs to follow this behavior to support existing drivers that expect to be able to set a virtual attribute without applying RWX to the range. The intermediate layer between the GCD and the paging crate (which forwards cache attrs to mtrr on x64) filters the virtual attributes out.
Note: This actually led to an edk2 PR as well, due to a bug in edk2's implementation of this behavior: tianocore/edk2#11557.
- Impacts functionality?
- Impacts security?
- Breaking change?
- Includes tests?
- Includes documentation?
How This Was Tested
Tested on a physical Intel platform.
Integration Instructions
N/A.
</blockquote> <hr> </details>
🔐 Security Impacting
-
GCD: Follow edk2 Attribute Behavior for Compat @os-d (#775)
Change Details
## Description
edk2 has a behavior where if SetMemorySpaceAttributes() is called with only virtual attributes set, then the page table is not updated (as 0 is a valid value in the page table attrs: RWX).
Patina needs to follow this behavior to support existing drivers that expect to be able to set a virtual attribute without applying RWX to the range. The intermediate layer between the GCD and the paging crate (which forwards cache attrs to mtrr on x64) filters the virtual attributes out.
Note: This actually led to an edk2 PR as well, due to a bug in edk2's implementation of this behavior: tianocore/edk2#11557.
- Impacts functionality?
- Impacts security?
- Breaking change?
- Includes tests?
- Includes documentation?
How This Was Tested
Tested on a physical Intel platform.
Integration Instructions
N/A.
</blockquote> <hr> </details>
Full Changelog: patina-v8.2.0...v8.3.0