rumpk

Commit Graph

Author	SHA1	Message	Date
Markus Maiwald	1b4facd86b	Phase 37: The Glass Cage - Memory Isolation Complete 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
Markus Maiwald	46e7be6837	feat(rumpk): Phase 7 Verified - Subject Zero Launch - 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

Author

SHA1

Message

Date

Markus Maiwald

1b4facd86b

Phase 37: The Glass Cage - Memory Isolation Complete

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

Markus Maiwald

46e7be6837

feat(rumpk): Phase 7 Verified - Subject Zero Launch

- 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

2 Commits