Roadmap: make rust-osdev/acpi#306 reviewable

[SnowCheetos]

Goal

Make the work from rust-osdev#306 reviewable by replacing the mega-PR with a small sequence of focused branches and PRs.

Upstream maintainer feedback was clear: allocator support is interesting, but rust-osdev#306 mixes too many concerns, includes a merge commit, contains generated/autocommit history, has formatting churn, and bundles unrelated fixes with allocator API work.

Roadmap

1. Publish the small platform allocator construction fix.

   • Tracking issue: PR #306 split: publish platform allocator construction fixes #3
   • Local branch: codex/pr306-platform-fixes
   • Commit: dcfd2dc

2. Publish the AML global-lock mutex fix separately.

   • Tracking issue: PR #306 split: publish AML global-lock mutex fix #2
   • Local branch: codex/pr306-global-lock
   • Commit: da1e0ec
   • Upstream bug: AML global lock acquisition of global_lock_mutex looks wrong rust-osdev/acpi#305

3. Audit unrelated interrupt/resource changes.

   • Tracking issue: PR #306 split: isolate or drop unrelated interrupt/resource changes #5
   • Decision: split into focused PRs if useful, otherwise drop from the allocator replacement.

4. Decide allocator string/error strategy before rebuilding the allocator branch.

   • Tracking issue: PR #306 allocator prep: decide string and error strategy #6
   • Key questions: AmlString<A>, string_alloc, AmlError<A>, allocator bounds.

5. Rebuild the allocator-aware AML interpreter work from clean upstream history.

   • Tracking issue: PR #306 rebuild: allocator-aware AML interpreter branch #4
   • Constraint: allocator work only, no generated commit bodies, no merge commit, no version bumps.

6. Supersede the original mega-PR.

   • Tracking issue: PR #306 closeout: supersede original mega-PR #1
   • Action: comment on Make AML interpreter storage allocator-api compatible rust-osdev/acpi#306 with the replacement plan, then close once replacement PRs are available.

Branch discipline

• Start each replacement branch from current upstream/main.
• Rebase branches instead of merging upstream into them.
• Keep each PR reviewable on its own.
• Avoid formatting-only churn unless the PR is explicitly about formatting.
• Keep version bumps out unless maintainers request them.
• Write commit messages that explain author intent and design tradeoffs.

Definition of done

• PR #306 split: publish platform allocator construction fixes #3 and PR #306 split: publish AML global-lock mutex fix #2 are opened upstream as small PRs.
• PR #306 split: isolate or drop unrelated interrupt/resource changes #5 is resolved by dropping or separately tracking every unrelated change.
• PR #306 allocator prep: decide string and error strategy #6 records the allocator design decision.
• PR #306 rebuild: allocator-aware AML interpreter branch #4 is opened as the cleaned allocator PR.
• PR #306 closeout: supersede original mega-PR #1 closes the loop on Make AML interpreter storage allocator-api compatible rust-osdev/acpi#306.