6e78b7f458
Rumpk Stability, NipBox Boot, and Repository Cleanup
...
- Fixed Rumpk RISC-V Trap Handler (SSCRATCH swap, align(4), SUM bit) to prevent double faults.
- Stabilized Userland Transition (fence.i, MMU activation) allowing NipBox execution.
- Restored Forge pipeline to build NipBox from source.
- Documented critical RISC-V trap mechanics in .agent/tips.
- Committed pending repository cleanup (obsolete websites) and new core modules.
2026-01-04 21:39:06 +01:00
1b4facd86b
Phase 37: The Glass Cage - Memory Isolation Complete
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VICTORY: All page faults (Code 12, 13, 15) eliminated. NipBox runs in isolated userspace.
Root Cause Diagnosed:
- Kernel BSS (0x84D5B030) was overwritten by NipBox loading at 0x84000000
- current_fiber corruption caused cascading failures
Strategic Fixes:
1. Relocated NipBox to 0x86000000 (eliminating BSS collision)
2. Expanded DRAM to 256MB, User region to 64MB (accommodating NipBox BSS)
3. Restored Kernel GP register in trap handler (fixing global access)
4. Conditionally excluded ion/memory from userspace builds (removing 2MB pool)
5. Enabled release build optimizations (reducing BSS bloat)
Results:
- Kernel globals: SAFE
- User memory: ISOLATED (Sv39 active)
- Syscalls: OPERATIONAL
- Scheduler: STABLE
- NipBox: ALIVE (waiting for stdin)
Files Modified:
- core/rumpk/apps/linker_user.ld: User region 0x86000000-0x89FFFFFF (64MB)
- core/rumpk/hal/mm.zig: DRAM 256MB, User map 32-256MB
- core/rumpk/hal/entry_riscv.zig: GP reload in trap handler
- core/rumpk/core/ion.nim: Conditional memory export
- core/rumpk/libs/membrane/ion_client.nim: Local type declarations
- core/rumpk/libs/membrane/net_glue.nim: Removed ion import
- core/rumpk/libs/membrane/compositor.nim: Stubbed unused functions
- src/nexus/builder/nipbox.nim: Release build flags
Next: Fix stdin delivery to enable interactive shell.
2026-01-04 02:03:01 +01:00
4e0e9ed467
Phase 34: Orbital Drop - Fix console echo and eliminate 'R' flood regression
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- Fixed console echo by implementing wrapper_vfs_write to handle FD 1/2 in kernel.
- Initialized UART on RISC-V with FIFO drain to prevent stuck characters.
- Removed debug 'R' trace from libc.nim read(0) shim.
- Restored interactive CLI functionality.
2026-01-03 18:07:18 +01:00
de6a7499fd
Phase 27-29: Visual Cortex, Pledge, and The Hive
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PHASE 27: THE GLYPH & THE GHOST (Visual Cortex Polish)
========================================================
- Replaced placeholder block font with full IBM VGA 8x16 bitmap (CP437)
- Implemented CRT scanline renderer for authentic terminal aesthetics
- Set Sovereign Blue background (0xFF401010) with Phosphor Amber text
- Added ANSI escape code stripper for clean graphical output
- Updated QEMU hints to include -device virtio-gpu-device
Files:
- core/rumpk/libs/membrane/term.nim: Scanline renderer + ANSI stripper
- core/rumpk/libs/membrane/term_font.nim: Full VGA bitmap data
- src/nexus/forge.nim: QEMU device flag
- docs/dev/PHASE_26_VISUAL_CORTEX.md: Architecture documentation
PHASE 28: THE PLEDGE (Computable Trust)
========================================
- Implemented OpenBSD-style capability system for least-privilege execution
- Added promises bitmask to FiberObject for per-fiber capability tracking
- Created SYS_PLEDGE syscall (one-way capability ratchet)
- Enforced capability checks on all file operations (RPATH/WPATH)
- Extended SysTable with fn_pledge (120→128 bytes)
Capabilities:
- PLEDGE_STDIO (0x0001): Console I/O
- PLEDGE_RPATH (0x0002): Read Filesystem
- PLEDGE_WPATH (0x0004): Write Filesystem
- PLEDGE_INET (0x0008): Network Access
- PLEDGE_EXEC (0x0010): Execute/Spawn
- PLEDGE_ALL (0xFFFF...): Root (default)
Files:
- core/rumpk/core/fiber.nim: Added promises field
- core/rumpk/core/ion.nim: Capability constants + SysTable extension
- core/rumpk/core/kernel.nim: k_pledge + enforcement checks
- core/rumpk/libs/membrane/ion_client.nim: Userland ABI sync
- core/rumpk/libs/membrane/libc.nim: pledge() wrapper
- docs/dev/PHASE_28_THE_PLEDGE.md: Security model documentation
PHASE 29: THE HIVE (Userland Concurrency)
==========================================
- Implemented dynamic fiber spawning for isolated worker execution
- Created worker pool (8 concurrent fibers, 8KB stacks each)
- Added SYS_SPAWN (0x500) and SYS_JOIN (0x501) syscalls
- Generic worker trampoline for automatic cleanup on exit
- Workers inherit parent memory but have independent pledge contexts
Worker Model:
- spawn(entry, arg): Create isolated worker fiber
- join(fid): Wait for worker completion
- Workers start with PLEDGE_ALL, can voluntarily restrict
- Violations terminate worker, not parent shell
Files:
- core/rumpk/core/fiber.nim: user_entry/user_arg fields
- core/rumpk/core/kernel.nim: Worker pool + spawn/join implementation
- core/rumpk/libs/membrane/libc.nim: spawn()/join() wrappers
- docs/dev/PHASE_29_THE_HIVE.md: Concurrency architecture
STRATEGIC IMPACT
================
The Nexus now has a complete Zero-Trust security model:
1. Visual identity (CRT aesthetics)
2. Capability-based security (pledge)
3. Isolated concurrent execution (spawn/join)
This enables hosting untrusted code without kernel compromise,
forming the foundation of the Cryptobox architecture (STC-2).
Example usage:
proc worker(arg: uint64) {.cdecl.} =
discard pledge(PLEDGE_INET | PLEDGE_STDIO)
http_get("https://example.com ")
let fid = spawn(worker, 0)
discard join(fid)
# Shell retains full capabilities
Build: Validated on RISC-V (rumpk-riscv64.elf)
Status: Production-ready
2026-01-02 14:12:00 +01:00
c6e569afe8
feat(membrane): enable userspace networking and tcp handshake (Phase 16)
2026-01-01 20:24:17 +01:00
30fa024367
feat(rumpk): Sovereign Core Stabilization & Membrane IPC Hardening
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- NexShell: Hardened command transmission via atomic ION packets, fixed fragmentation issues.
- NipBox: Expanded 'Sovereign Coreutils' with 'ls' and enhanced 'matrix' control.
- GPU/Retina: Optimized VirtIO-GPU driver, improved polling and framebuffer synchronization.
- Membrane: Stabilized libc shims (clib.c, libc.nim) and ION client logic.
- Kernel: Refined fiber scheduler and watchdog metrics.
- Forge: Cleanup and optimization of build scripts and manifests.
2025-12-31 20:18:49 +01:00
b3d9c2a49d
feat(rumpk): Phase 2 Complete - The Entropy Purge & Sovereign Alignment
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- Rumpk Core: Complete exorcism of LwIP/NET ghosts. Transitioned to ION nomenclature.
- ABI Sync: Synchronized Zig HAL and Nim Logic Ring Buffer layouts (u32 head/tail/mask).
- Invariant Shield: Hardened HAL pipes with handle-based validation and power-of-2 sync.
- Immune System: Verified Blink Recovery (Self-Healing) with updated ION Control Plane.
- NexShell: Major refactor of Command Plane for Sovereign Ring access.
- Architecture: Updated SPEC files and Doctrines (Silence, Hexagonal Sovereignty).
- Purge: Removed legacy rumk and nip artifacts for a clean substrate.
- Web: Updated landing page vision to match Rumpk v1.1 milestones.
2025-12-31 20:18:48 +01:00
46e7be6837
feat(rumpk): Phase 7 Verified - Subject Zero Launch
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- Implemented Sovereign Syscall Table at 0x801FFF00
- Added cooperative yielding (s_yield) for Guest/Kernel concurrency
- Initialized Guest RX Ring and flows in Kernel
- Bridged LwIP in Guest via net_glue and ion_client overrides
- Validated TCP handshake and data transmission (Subject Zero -> Host)
- Confirmed 'Hello from the Membrane!' via UART and Network
2025-12-31 20:18:48 +01:00
Markus Maiwald