vasilito
678980521c
feat: T1.1-T2.2 MSI subsystem — kernel MSI, vectors, affinity, validation
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Kernel:
- T1.1 msi.rs: MSI message composition (MsiMessage), validation
(is_valid_msi_address, is_valid_msi_vector), capability parsing
(MsiCapability, MsixCapability) with bounds-safe .get() access
- T1.2 vector.rs: per-CPU bitmatrix vector allocation/deallocation
- T1.3 IRQ scheme: MSI vector validation gate at irq_trigger,
iommu_validate_msi_irq hook, msi_vector_is_valid helper
- mod.rs: declarations for msi + vector modules
- Fix validation mask 0xFEEF_F000→0xFFF0_0000 (bits 31:20 check)
T2.1 driver-sys: program_x86_message kernel-mediated validation
- Validates MSI address range 0xFEE0_0000–0xFEEF_EFFF and vector 32–254
- Gated behind #[cfg(target_os = "redox")]; clearly rejects non-Redox
- Uses correct 0xFFF0_0000 mask for destination-ID-tolerant validation
T2.2 kernel-side affinity: Handle::IrqAffinity variant
- kopenat handles <irq>/affinity and cpu-XX/<irq>/affinity paths
- kwrite validates CPU id exists, stores mask atomically
- kfstat/kfpath/kreadoff/close all handle new variant
- Fix unused handle_irq warning in kwrite match arm
T2.3 driver-sys: MsiAllocation struct + irq_set_affinity helper
- MsiAllocation with round-robin CPU allocation via alloc_cpu_id
- irq_set_affinity uses scheme:irq/<irq>/affinity write path
- IrqFd type alias in pci.rs for file descriptor tracking
IOMMU T3.1: InterruptRemapTable, IRTE encode/decode, IrqRemapManager
- IRTE (16-byte) encoding/decoding for AMD-Vi interrupt remapping
- InterruptRemapTable with program/invalidate/find_free
- IrqRemapManager with multi-table remap and validate_msi gate
- Remove arbitrary .min(256) bound on find_free
P8-msi.patch: 281-line durable kernel patch, wired in recipe.toml
2026-05-04 18:00:15 +01:00
vasilito
9880e0a5b2
Advance redbear-full Wayland, greeter, and Qt integration
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Consolidate the active desktop path around redbear-full while landing the greeter/session stack and the runtime fixes needed to keep Wayland and KWin bring-up moving forward.
2026-04-19 17:59:58 +01:00
vasilito
52ff34b60a
Strengthen PCI and IRQ helper coverage
2026-04-18 21:38:30 +01:00
vasilito
6b887e9166
Update redox-driver-sys PCI and quirk support
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Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent )
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai >
2026-04-17 00:03:17 +01:00
vasilito
6c418bb03b
Update Red Bear driver substrate
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Red Bear OS Team
2026-04-16 12:43:10 +01:00
vasilito
cf12defd28
Advance Wayland and KDE package bring-up
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Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent )
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai >
2026-04-14 10:51:06 +01:00
vasilito
50b731f1b7
Red Bear OS — microkernel OS in Rust, based on Redox
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Derivative of Redox OS (https://www.redox-os.org ) adding:
- AMD GPU driver (amdgpu) via LinuxKPI compat layer
- ext4 filesystem support (ext4d scheme daemon)
- ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG)
- Custom branding (hostname, os-release, boot identity)
Build system is full upstream Redox with RBOS overlay in local/.
Patches for kernel, base, and relibc are symlinked from local/patches/
and protected from make clean/distclean. Custom recipes live in
local/recipes/ with symlinks into the recipes/ search path.
Build: make all CONFIG_NAME=redbear-full
Sync: ./local/scripts/sync-upstream.sh
2026-04-12 19:05:00 +01:00
vasilito