Track XAIOS platform implementation and release readiness

[Pummelchen]

Objective

Track the XAIOS platform independently from individual model-family support.

Delivery dependency

This remains the only active workstream. Qwen 3.6 27B tracker #17 is next and stays blocked until the XAIOS completion gates below pass. Kimi K3, DeepSeek V4 Flash 0731, and GLM 5.2 remain later workstreams.

Verified QEMU and hosted boundary

The following foundations are implemented and tested at their stated evidence boundary:

• AArch64 runtime-sized SMP worker dispatch and live FP/SIMD interrupt context preservation
• Native macOS/Linux portable-engine executable with caller-owned package, backend, model, and session registries
• Immutable no-copy 64-bit model mappings, aligned asynchronous range I/O, and lifecycle-safe session metadata
• x86 MADT-discovered AP startup and IPI worker participation without a project-level CPU count ceiling
• x86 GDT/TSS ring-3 syscall transition and runtime-sized XSAVE/XRSTOR with FXSAVE fallback
• x86 MADT/SRAT/SLIT/HMAT parsers and modern VirtIO block DMA, MSI-X completion, and network TX
• Non-skipping aggregate CI with pinned translated-SMMUv3 test QEMU
• README, repository trackers, readiness docs, support source, and Wiki reconciliation

GitHub Actions run https://github.com/Pummelchen/XAIOS/actions/runs/30886171942 passed all ten jobs. QEMU evidence establishes correctness and ABI behavior only; it is not physical performance or production-support evidence.

Remaining XAIOS completion gates

• Complete the x86_64 full platform-service port tracked in Complete x86_64 full platform service parity #18: complete EL0 process/thread ABI, receive networking, SSH/SFTP/control, mounted filesystems, x86 NVMe operation, security, AI Cell, and telemetry
• Complete the security-sensitive syscall/user-buffer review tracked in Audit security-sensitive syscall and user-buffer paths #8
• Complete production-width memory/NUMA/storage policy and physical Apple, Intel Desktop, and Xeon validation tracked in Validate XAIOS on physical Apple, ARM server, Intel, and Xeon hardware #19
• Integrate the production model-v2 importer/runtime boundary needed before the Qwen workstream starts
• Keep QEMU and physical evidence separately reproducible under the benchmark contract

Authoritative sources

• docs/PLATFORM-SUPPORT.json - 20-item platform recommendation status
• PROJECT-TRACKER.md - dependency-aware implementation checklist
• HARDWARE-READINESS.md - QEMU versus physical gate boundary
• docs/MODEL-SUPPORT.json - model workstream status

Do not close this tracker or unblock Qwen solely because interfaces, parsers, or QEMU canaries exist.