Master Tracker

XAI OS Master Tracker

Single source of truth for all XAI OS milestones, production readiness, CPU profiles, and hardware validation. Last updated: 2026-06-17

Status Legend

Marker	Meaning
✅ Done	Implemented and verified
🔵 Active	Current or next planned engineering work
⬜ Pending	Planned but not implemented yet
⚠️ Blocked	Waiting on prerequisite design, code, hardware, or tooling

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Summary

Phase	Range	Status
Repository, toolchain, boot foundation	Milestones 0-7	✅ Done
Kernel, memory, devices, AI Cell MVP	Milestones 8-15	✅ Done
EL0 userspace, heap, VMM, VirtIO, filesystem, telemetry	Milestones 16-22	✅ Done
QEMU release-candidate readiness	Milestones 23-33	✅ Done
Full OS completion	Milestones 34-42	✅ Done
Intel Desktop QEMU bring-up	Milestones 43-51	✅ Done
QEMU-only hardening	Milestones 52-59	✅ Done
QEMU 100 completion	Milestones 60-71	✅ Done
Production Readiness Tier 1: Core OS	Items 1-5	✅ Done
Production Readiness Tier 2: Operability	Items 6-10	✅ Done
Production Readiness Tier 3: AI Agent Capability	Items 11-15	✅ Done
Production Readiness Tier 4: Hardware Readiness	Items 16-20	✅ Done
Production Readiness Tier 5: Ecosystem	Items 21-25	✅ Done
VMware Fusion validation	—	⬜ Pending
Parallels (Mac) validation	—	⬜ Pending
Physical Intel Desktop hardware	—	⬜ Pending
Physical Intel Xeon hardware	—	⬜ Pending
Physical AMD hardware	—	⬜ Pending
Physical ARM/NVIDIA hardware	—	⬜ Pending

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Milestones 0-33: QEMU Readiness Track

#	Phase	Deliverable	Status
0	Repository foundation	Clean repo layout, docs split, wiki, build artifact ignores	✅ Done
1	macOS toolchain	QEMU, LLVM, LLD, Python, mtools, firmware checks	✅ Done
2	Build system	Build scripts and AArch64 image generation	✅ Done
3	UEFI loader	AArch64 UEFI loader loads kernel.elf	✅ Done
4	Kernel entry	Kernel starts after UEFI ExitBootServices	✅ Done
5	Serial logging	Deterministic serial console and boot markers	✅ Done
6	UEFI memory map	Memory map passed from loader and parsed by kernel	✅ Done
7	Physical memory manager	PMM tracks total, free, and reserved pages	✅ Done
8	AArch64 VMM	Page tables, map/unmap checks, MMIO mappings	✅ Done
9	Exceptions	Controlled exception path and page fault reporting	✅ Done
10	Timer and GIC	Generic timer and interrupt-controller discovery	✅ Done
11	SMP state	PSCI CPU bring-up and per-core registry	✅ Done
12	VirtIO block	Split VirtIO block path with read/write/error/reset tests	✅ Done
13	VirtIO net	Split VirtIO net path with malformed/drop/reset tests	✅ Done
14	Minimal control plane	Early supervisor/control-plane boot logic	✅ Done
15	AI Cell MVP	AI Cell lifecycle, core lease metadata, shared model arena MVP	✅ Done
16	Real EL0 userspace	User/kernel split, EL0 return path, syscall ABI, real /init ELF	✅ Done
17	Kernel heap	PMM/VMM-backed heap and page-backed allocations	✅ Done
18	VMM enforcement	RO/NX tests, guard pages, segment separation, map/unmap APIs	✅ Done
19	VirtIO cleanup	Shared VirtIO transport plus block and net drivers	✅ Done
20	Filesystem payload	VirtIO-backed read-only filesystem with /init and config	✅ Done
21	AI Cell enforcement	Core, arena, NIC queue, workspace, and conflict checks	✅ Done
22	Telemetry harness	Standard boot markers and JSON-like counters	✅ Done
23	Process lifecycle	Process table, loaded/running/exited/failed states, kernel resume	✅ Done
24	Userspace control plane	/bin/service-manager, status, restart, rollback, update syscalls	✅ Done
25	Disk persistence	Serialized state records, reboot reload, rollback behavior	✅ Done
26	Networking depth	Queue-backed packet flow, UDP flow table, TCP timeout smoke path	✅ Done
27	CPU-only AI runtime depth	Model-loader boundary, tokenizer/runtime boundary, shared weights, private KV/cache	✅ Done
28	Security enforcement	Capability, filesystem, workspace, sandbox, update, rollback checks	✅ Done
29	QEMU release candidate	Single readiness gate across boot, runtime, security, docs	✅ Done
30	QEMU CPU matrix	ARM64 boot tiers and x86_64 command tiers	✅ Done
31	ABI freeze	Syscall ABI and telemetry schema frozen for QEMU RC	✅ Done
32	Format freeze	Filesystem, persistence, and service descriptor formats frozen	✅ Done
33	Hardware-readiness gate	make qemu-readiness-gate passes and emits readiness report	✅ Done

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Milestones 34-42: Full OS Completion

#	Phase	Deliverable	Status
34	Full filesystem	Allocator-backed mutable FS, directories, journal replay, commit/rollback telemetry	✅ Done
35	Process supervisor	Real service tree, child restart policy, crash handling, cleanup	✅ Done
36	Network stack maturity	Queue-backed UDP/TCP beyond smoke, timeouts, retransmit, per-core flow ownership	✅ Done
37	CPU-only model runtime	Real model file loader, tokenizer binding, CPU kernel dispatch, admission checks	✅ Done
38	AI Cell production contract	Stable descriptor ABI, resource admission, arena accounting, queue/workspace binding	✅ Done
39	Security hardening	Signed update policy, key handling, admin capability, sandbox escape, rollback auth	✅ Done
40	Update and rollback system	Install/update transactions, rollback points, boot fallback, failed-update recovery	✅ Done
41	Admin control plane	SSH-only admin shell, service inspection, status export, log retrieval, remote-safe commands	✅ Done
42	Full OS release candidate	Full QEMU OS gate with stable ABI, FS, process, net, AI Cell, security, telemetry	✅ Done

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Milestones 43-51: Intel Desktop QEMU Track

#	Phase	Deliverable	Status
43	Intel Desktop x86_64 boot	Build and boot x86_64 UEFI image in QEMU with deterministic serial markers	✅ Done
44	Intel Desktop early exceptions	IDT, fault reporting, and early panic path for x86_64	✅ Done
45	Intel Desktop memory map	Parse x86_64 UEFI descriptors into PMM/VMM state	✅ Done
46	Intel Desktop page tables	Higher-half/user split, RO/NX enforcement, MMIO mappings, stack guards	✅ Done
47	Intel Desktop timers/APIC	Local APIC, IOAPIC planning, HPET/TSC-deadline policy	✅ Done
48	Intel Desktop PCI/NVMe/NIC	PCIe enumeration sufficient for NVMe and NIC bring-up	✅ Done
49	Intel Desktop placement policy	P-core/E-core metadata, SMT policy, hot-core isolation telemetry	✅ Done
50	Intel Desktop OS contract port	QEMU full OS contracts on x86_64: userspace, FS, net, AI Cell, security, telemetry	✅ Done
51	Intel Desktop hardware gate	QEMU RC gate for Intel Desktop (physical HW + Linux/BSD baselines still required)	✅ Done

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Milestones 52-59: QEMU-Only Hardening

#	Phase	Deliverable	Status
52	QEMU regression suite	Process, FS rollback, AI Cell, network, security, telemetry regression report	✅ Done
53	Fault injection	Controlled page/RO/NX faults, bad syscall, malformed packet, corrupt state paths	✅ Done
54	ABI contract tests	Syscall/capability, initramfs, telemetry, CPU-AI, AI Cell, persistence, security checks	✅ Done
55	Deterministic boot loop	Three repeated QEMU smoke boots with invariant checks	✅ Done
56	Userspace expansion	Control-plane checks, /bin apps: shell, hello, sysinfo, systest, smptest, nettest, LSTM XOR	✅ Done
57	Network stack tests	UDP lifecycle, TCP timeout/retransmit, malformed drops, per-core queue, app-facing paths	✅ Done
58	CPU-only AI runtime simulator	Model loader, tokenizer, shared weights, KV/cache, GPU rejection, admission, decode syscall	✅ Done
59	Developer UX	Make target coverage, docs markers, QEMU dry-run validation, aggregate gate report	✅ Done

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Milestones 60-71: QEMU 100 Completion

#	Phase	Deliverable	Gate	Status
60	Real scheduler and process model	Multiple EL0 processes, states, supervision, cleanup telemetry	make qemu-process-gate	✅ Done
61	Real userspace command surface	osctl status/ps/services/cells/fs/net/telemetry/update/rollback	make qemu-osctl-gate	✅ Done
62	Minimal real filesystem surface	Directory listing, CRUD, rename, metadata, open/read/write/close, corruption tests	make qemu-filesystem-gate	✅ Done
63	App-agent workspace flow	Source index, patch stage/apply/revert, build/test, Git sync, rollback	make qemu-app-agent-gate	✅ Done
64	Network stack completion	Packet buffer pool, UDP/TCP lifecycle, per-core queue, malformed drops	make qemu-network-full-gate	✅ Done
65	CPU-only AI runtime MVP	Model ABI, metadata parser, tokenizer, deterministic inference, shared weights, KV/cache	make qemu-cpu-ai-runtime-gate	✅ Done
66	AI Cell production semantics	Descriptor ABI, resource enforcement, telemetry, conflict tests	make qemu-ai-cell-gate	✅ Done
67	Security and capability hardening	Capability audit, per-process/service checks, FS/workspace/update policy, security matrix	make qemu-security-gate	✅ Done
68	Update, rollback, and recovery	Transaction format, staged/committed/failed states, boot fallback, rollback points	make qemu-update-gate	✅ Done
69	Long-run stability and stress	25/100-boot soak, process/FS/net/AI Cell churn, leak checks	make qemu-soak-gate	✅ Done
70	QEMU release artifact	Image manifest, contracts, reports, checksums, release metadata	make qemu-release	✅ Done
71	Final QEMU 100 gate	Aggregate gate proving milestones 62-71, OpenSSH bridge, final report	make qemu-100-gate	✅ Done

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Production Readiness: Tier 1 — Core OS Functionality

#	Item	Description	Status
1	Real preemptive scheduler	Round-robin on CPU 0 with GICv3 PPI timer (INTID 30). Full context save/restore (34 regs). CPUs 1-3 leased AI cores.	✅ Done
2	Real ELF loader with address space isolation	Full ELF64 parser, per-process L2/L3 page tables, nG bit, TLBI VMALLE1IS on switch.	✅ Done
3	Persistent filesystem across reboots	Separate xaios-persistent.img VirtIO block. MFS v3: 64 nodes, 16 blocks/file, 256 sectors. fsck_volume() on mount.	✅ Done
4	Real TCP/IP stack with external connectivity	Persistent VirtIO-net, ARP cache, IPv4, ICMP echo. Static IP 10.0.2.15 via SLIRP. Socket syscall ABI.	✅ Done
5	Real SSH server	Userspace /bin/sshd port 22. SHA-256, HMAC-SHA256, AES-128-CTR, Curve25519. SSH-2 KEX + auth + session.	✅ Done

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Production Readiness: Tier 2 — Operability

#	Item	Description	Status
6	Real-time clock and wall time	PL031 RTC at 0x01010000. wall_time_now_ns() combines RTC epoch with monotonic counter offset.	✅ Done
7	Logging daemon with persistent storage	64 KB ring buffer (klog_ring.c). Log levels with wall-clock timestamps. klog_flush() to /var/log/kern.log. Rotation at 8 KB.	✅ Done
8	Process crash recovery and restart policies	Exponential backoff (1s-60s). on-failure restart policy. 8-slot crash dump ring. service_watchdog_check() 30s timeout.	✅ Done
9	Package/update delivery mechanism	FIPS 180-4 SHA-256. Chunked delivery (4 KB max). Running hash verification. Manifest parser (version, target, size, hash, generation).	✅ Done
10	Hardware watchdog and panic recovery	Timer watchdog 10s deadline. watchdog_trigger_reset() via PSCI SYSTEM_RESET. Boot counter in /var/boot_counter. Recovery mode after 3 failed boots.	✅ Done

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Production Readiness: Tier 3 — AI Agent Capability

#	Item	Description	Status
11	Real CPU inference runtime	Q8.8 fixed-point matmul_q88(), forward_pass_q88() with ReLU. MATMUL/FORWARD model kinds. Identity matrix self-test.	✅ Done
12	Real source-code indexing	source_index_scan_source() C tokenizer, symbol/function detection. query_symbol_count() API. Self-test with 4-line C fixture.	✅ Done
13	Real Git operations	compute_blob_hash() SHA-256, compute_diff() unified diff with hunks. Blob/diff counters. Self-test verifies hash and 1-hunk diff.	✅ Done
14	Real sandbox execution	Bytecode VM: 8 regs, 9 opcodes. sandbox_execute_build() with arena output and max-cycle guard. Self-test emits "OK".	✅ Done
15	App-agent command protocol	128-byte request/response headers. 6 commands: INFERENCE, INDEX_QUERY, GIT_STATUS, GIT_DIFF, BUILD, PING. Syscall 34. agenttest.c userspace app.	✅ Done

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Production Readiness: Tier 4 — Hardware Readiness

#	Item	Description	Status
16	NUMA-aware memory allocation	numa.c, per-node free-stacks, pmm_alloc_page_on_node(), pmm_alloc_page_near(). Self-test verifies topology and alloc/free.	✅ Done
17	IOMMU/SMMU enforcement	SMMUv3 driver at 0x09050000. Stream tables, 128-entry command queue, TLB invalidate. smmu=on in QEMU options.	✅ Done
18	Kernel ASLR and stack canaries	CNTVCT_EL0 seed, XAIOS_STACK_PROTECT_BEGIN/END macros. stack_canary_check() panics on mismatch.	✅ Done
19	Rate limiting and resource quotas	Token bucket (rate_limit.c), per-cell CPU/memory/network quotas. Violation counters. Self-test exercises exhaustion.	✅ Done
20	PCI/PCIe enumeration	ECAM at 0x4010000000. Full config space read, multi-function scan, PCIe capability walking. pci_find_device().	✅ Done

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Production Readiness: Tier 5 — Ecosystem

#	Item	Description	Status
21	Selective POSIX compatibility	handle_sed(), parse_and_execute_pipeline(), pipes via temp files. /bin/posix-shell with 25+ commands.	✅ Done
22	CI/CD pipeline	.github/workflows/ci.yml: compile-check, ABI validation, QEMU smoke test, regression suite.	✅ Done
23	Performance benchmarking	benchmark-baseline.py, METHODOLOGY.md, baseline-v1.json, optional Linux baseline comparison.	✅ Done
24	Developer documentation	docs/API.md, docs/ARCHITECTURE.md, docs/GETTING-STARTED.md, expanded CONTRIBUTING.md.	✅ Done
25	Licensing	MIT License (2024-2026, XAI OS Contributors).	✅ Done

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CPU Profile Matrix

ARM64 Profiles

Profile	CPU model	QEMU	QEMU status	Hardware status	Notes
Apple Silicon local smoke	host	yes, HVF	✅ Passing default smoke	🔵 Ready for hardware planning	Fast local correctness on M3 host
ARMv8 weak baseline	cortex-a53	yes	✅ Passing boot probe	🔵 Ready for hardware planning	Minimum compatibility profile
ARMv8 common baseline	cortex-a72	yes	✅ Passing boot probe	🔵 Ready for hardware planning	Portable AArch64 fallback
Modern ARM client	cortex-a76	yes	✅ Passing boot probe	⬜ Planned after Intel Desktop	Newer non-server ARM behavior
Newer ARM client	cortex-a710	yes	✅ Passing boot probe	⬜ Planned after Intel Desktop	ARMv9-style compatibility
ARM server baseline	neoverse-n1	yes	✅ Passing boot probe	⬜ Planned after Intel/Xeon	Graviton2-class approximation
Modern ARM server	neoverse-n2	yes	✅ Passing boot probe	⬜ Planned after Intel/Xeon	Newer ARM server substitute
High-performance ARM server	neoverse-v1	yes	✅ Passing boot probe	⬜ Planned after Intel/Xeon	High-end ARM server path
NVIDIA/Apple approximation	neoverse-v2	no	⚠️ Substitute required	⬜ Planned after Intel/Xeon	Use neoverse-n2/v1/max
Future feature exposure	max	yes	✅ Passing boot probe	🔵 Ready for compatibility planning	Broad QEMU feature exposure

Intel Desktop Profiles

Profile	CPU model	QEMU	QEMU status	Hardware status	Notes
Conservative Intel Desktop	Skylake-Client	yes	✅ Passing smoke boot	✅ Milestones 43-51 QEMU done	First x86_64 desktop profile
Intended Intel Desktop target	AlderLake	no (use max)	✅ max stand-in passing	✅ Placement policy QEMU stand-in	Validate on physical hardware
Broad desktop feature exposure	max	yes	✅ Passing smoke boot	✅ Placement policy represented	Compatibility stress profile

Intel Xeon / Server Profiles

Profile	CPU model	QEMU	QEMU status	Hardware status	Notes
Conservative Xeon baseline	Skylake-Server	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	First server x86_64 profile
Post-Skylake Xeon	Cascadelake-Server	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Server feature-detection paths
Xeon compatibility	Cooperlake	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Server feature coverage
Modern Xeon baseline	Icelake-Server	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Newer server features, 5-level paging
High-end Xeon	SapphireRapids	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	AMX/vector policy planning
Future Xeon	GraniteRapids	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Forward compatibility
Future Xeon	DiamondRapids	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Very new Intel server detection
Dense-core Xeon	SierraForest	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Server E-core policy
Dense-core Xeon	ClearwaterForest	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Forward dense-core compat
Server-edge Intel Atom	Denverton	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Lower-power server/edge
Server-edge Intel Atom	Snowridge	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Network-edge profile
Broad server feature exposure	max	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Compatibility stress profile

AMD x86_64 Profiles

Profile	CPU model	QEMU	QEMU status	Hardware status	Notes
AMD EPYC baseline	EPYC	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Zen-era server compatibility
AMD EPYC Rome	EPYC-Rome	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Zen 2 server compatibility
AMD EPYC Milan	EPYC-Milan	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Zen 3 server compatibility
AMD EPYC Genoa	EPYC-Genoa	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Zen 4 server compatibility
AMD EPYC Turin	EPYC-Turin	yes	✅ Passing smoke boot	⬜ Planned after Intel Desktop	Newer AMD server compat

Unsupported QEMU Models (Substitutes)

Requested model	Substitute
neoverse-v2	neoverse-n2, neoverse-v1, or max
AlderLake	max for compat, Skylake-Client for conservative
RaptorLake	max for compat, physical hardware later
RocketLake	max for compat, physical hardware later
TigerLake	max for compat, physical hardware later
MeteorLake	max for compat, physical hardware later
ArrowLake	max for compat, physical hardware later

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Hypervisor Validation

VMware Fusion Tests

#	Test	Description	Status
V1	AArch64 boot on Apple Silicon	Boot XAI OS UEFI image in VMware Fusion on Apple Silicon host	⬜ Pending
V2	x86_64 boot via emulation	Boot x86_64 XAI OS image in VMware Fusion (TCG/emulation path)	⬜ Pending
V3	VirtIO block and net	Verify VirtIO block read/write and VirtIO net RX/TX under Fusion	⬜ Pending
V4	Multi-core SMP	PSCI CPU bring-up and per-core registry under Fusion hypervisor	⬜ Pending
V5	Smoke test parity	All QEMU smoke markers pass under VMware Fusion	⬜ Pending
V6	Telemetry validation	Boot telemetry JSON counters match expected schema under Fusion	⬜ Pending
V7	Network connectivity	UDP/TCP flows and SSH bridge reachable from host through Fusion NAT	⬜ Pending
V8	Persistent storage reboot	VirtIO-backed persistent image survives reboot under Fusion	⬜ Pending

Parallels Desktop Tests (Mac Virtual VM)

#	Test	Description	Status
P1	AArch64 boot on Apple Silicon	Boot XAI OS UEFI image in Parallels Desktop on Apple Silicon host	⬜ Pending
P2	x86_64 boot via emulation	Boot x86_64 XAI OS image in Parallels Desktop	⬜ Pending
P3	VirtIO block and net	Verify VirtIO block read/write and VirtIO net RX/TX under Parallels	⬜ Pending
P4	Multi-core SMP	PSCI CPU bring-up and per-core registry under Parallels hypervisor	⬜ Pending
P5	Smoke test parity	All QEMU smoke markers pass under Parallels	⬜ Pending
P6	Telemetry validation	Boot telemetry JSON counters match expected schema under Parallels	⬜ Pending
P7	Network connectivity	UDP/TCP flows and SSH bridge reachable from host through Parallels NAT	⬜ Pending
P8	Persistent storage reboot	VirtIO-backed persistent image survives reboot under Parallels	⬜ Pending

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Physical Hardware Validation

Target	Status	Prerequisites
Intel Desktop (Alder Lake)	⬜ Pending	QEMU milestones 43-51 done (✅), physical hardware, tuned Linux/BSD baseline
Intel Xeon (server)	⬜ Pending	Intel Desktop validated, NUMA policy, physical server hardware
AMD EPYC (server)	⬜ Pending	Intel Desktop validated, physical AMD hardware
ARM/NVIDIA (N1X-class)	⬜ Pending	QEMU ARM64 profiles validated, physical ARM/NVIDIA hardware

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Frozen Contracts

• contracts/qemu-rc-v1.json — QEMU release-candidate contract
• Syscall ABI frozen (34 syscalls via svc #0, x8 = syscall number)
• Telemetry schema frozen (~130 key-value JSON pairs)
• Read-only initramfs format frozen
• Persistence record format frozen
• Service descriptor format frozen
• AI Cell descriptor ABI (AIC1 v1, 112-byte layout)
• Agent protocol header (128-byte request/response, magic 0x41475251/0x41475253)

Gate Commands

Gate	Purpose
make qemu-smoke	Fast local smoke test
make qemu-readiness-gate	Full readiness matrix
make qemu-full-os-rc	Full OS release candidate
make qemu-process-gate	Milestone 60 scheduler
make qemu-osctl-gate	Milestone 61 userspace
make qemu-filesystem-gate	Milestone 62 filesystem
make qemu-app-agent-gate	Milestone 63 app-agent
make qemu-network-full-gate	Milestone 64 networking
make qemu-cpu-ai-runtime-gate	Milestone 65 CPU-AI runtime
make qemu-ai-cell-gate	Milestone 66 AI Cell
make qemu-security-gate	Milestone 67 security
make qemu-update-gate	Milestone 68 update/rollback
make qemu-soak-gate	Milestone 69 stress
make qemu-release	Milestone 70 release artifact
make qemu-100-gate	Milestone 71 aggregate
make qemu-post51-gate	Post-51 hardening aggregate
make intel-desktop-gate	Intel Desktop QEMU gate
make qemu-x86_64-smoke	x86_64 smoke boot
make qemu-cpu-matrix	Full CPU matrix validation