Verified x86_64-unknown-redox cross-compilation: redbear-hwutils, redbear-info, redbear-compositor all build and publish. Host cargo check zero warnings. Target make r.* successful. 12 total commits. 7 master plan workstreams advanced.
PCI IRQ checker: MSI-X capability detection, spurious IRQ accounting, interrupt affinity probe using redox-driver-sys IrqHandle IOMMU checker: vendor detection (AMD-Vi/Intel VT-d), control-scheme unit initialization probe, event drain probe, wire-format tests Unified harness: test-irq-runtime.sh (guest + QEMU modes) following Phase 1-5 pattern — exit-code-based, explicit binary checks Zero warnings, all tests pass.
vasilito