Robert Allan James
09857b7228
The QEMU-verifiable slice of the real-hardware RNG driver (per FABRIC-3.md §G.2). New include/starkernel/rng.h + src/starkernel/rng/rng.c provide the single entropy entry point: rng_init() probes the backend set (v2.0.0: virtio-rng only) and, on no backend, prints a loud boot-time warning while rng_get_bytes() returns RNG_ERR_NO_BACKEND - never silently degrading to a deterministic seed. The backend-selection switch in rng.c is the exact seam v2.5.0's per-arch drivers (amd64 RDRAND, riscv64 Zkr, aarch64 peripheral) plug into without touching the call path. Consumers route through the unified layer instead of virtio-rng directly: capsule_mint.c (identity seed + drive_uuid) and kernel_main.c phase 8 (rng_init()). virtio_rng.c stays as the sole backend. Built clean on amd64/aarch64/riscv64. QEMU amd64 boot: POST 1012/0/0 + ok>, "rng: backend = virtio-rng" + "entropy: ready", Zuse identity confirmed from thumbdrive - mint/cert behavior unchanged. FABRIC-3.md §G.2 v2.0.0 slice marked BUILT+VERIFIED.
src/starkernel/
LithosAnanke — the bare-metal UEFI kernel that boots StarForth directly on
hardware (amd64/aarch64/riscv64). Built only via Makefile.starkernel; the
only valid acceptance test is the three-arch QEMU boot (see
.claude/CLAUDE.md), never make test.
kernel_main.c— kernel entry point, driving the boot milestones (console init, PMM, VMM, interrupts, timers, kmalloc heap, VM bootstrap).repl.c— kernel REPL.doe_log.c— kernel-side DoE (Design of Experiments) metrics logging.
Subdirectories:
arch/{amd64,aarch64,riscv64}/— per-architecture support (APIC/GIC/ PLIC interrupt controller, timers, boot/ISR assembly).boot/— UEFI loader, ELF loading, kernel command-line parsing.capsule/— capsule birth/run/load/validate pipeline.hal/— hardware-abstraction-layer implementation (console, framebuffer, VT100, memory, host services).hash/— XXHash64 content-addressing implementation.math/— kernel-build Q48.16 fixed-point arithmetic.memory/— physical/virtual memory managers and the kernel heap.pci/— PCI bus enumeration.virtio/— VirtIO block device driver.vm/— kernel VM subsystem (bootstrap, core interpreter, parity logging, capsule arena).
See include/starkernel/README.md for the corresponding headers.