Files
LithosAnanake/include/starkernel
Robert Allan JamesandClaude Sonnet 5 9d129fdb1c Add sk_hermes_alloc(), the heat-coupled allocator -- FABRIC-3.6.md task 2.2, item 28
The piece FABRIC-3.5.md SXXXIII.6 calls "what remains genuinely hard,"
built and proven first per its own recommendation. Added
src/starkernel/vm/kernel_hermes.c (wired into Makefile.starkernel's
LOADER_EXTRA_SRCS -- this repo lists vm/*.c files explicitly, no glob)
and sk_hermes_alloc()'s declaration in kernel_hermes.h.

Checks stadium_reservoir_peek(vm_id) >= SK_HERMES_Q_SLOT before
touching the reservoir at all -- refusal this way needs no rollback,
since nothing was pulled -- with an explicit rollback path
(stadium_reservoir_push) kept defensively for the pull-then-short case,
though nothing in this single-core kernel is expected to reach it.

SK_HERMES_Q_SLOT = Q48_ONE / SK_HERMES_MSG_MAX (2048), deliberately
simpler than messaging.4th's own formula, which reserves a Q.1/3 floor
for COMMON-CH's own Stadium heat -- kernel-Hermes has no such object
(SXXXIII.4/SXXXIII.5's flat membership list carries no heat of its
own), so there is nothing left for that floor to protect.

Self-test in kernel_main.c, same diagnostic-only synthetic-VM pattern
as the existing Stadium quota grant self-test (lo=3, distinct from
that test's lo=1): reads back the actual granted reservoir rather than
assuming a number, derives expected_n from it, allocates to refusal,
and checks the refusal lands at exactly expected_n, the reservoir
doesn't move on the refused attempt (rollback proven, not assumed),
and the final reservoir is exactly reservoir0 minus got_n times
Q_SLOT.

Three-arch boot clean: amd64/aarch64/riscv64 all reach [zuse@Hera] ok>,
zero UNKNOWN WORD, dict_hash unmoved from task 2.1 (pure C, no FORTH
touched). All three print identical self-test arithmetic: reservoir0=
65536 Q_SLOT=2048 expected_n=32 got_n=32 reservoir_after=0. No compiler
warnings.

Noted, not fixed: Q_SLOT's divisor and SK_HERMES_MSG_MAX are the same
32, so reservoir and arena exhaustion land at exactly the same count by
construction -- this test can't distinguish which refusal reason
fired, only that refusal is correct and rolls back correctly.

Deliberately not evidence for stadium_conserved(): allocating alone
(no release yet, task 2.3) leaves pulled heat held off the Stadium
floor, so the two-term check would correctly read false right now if
run mid-hold. That's expected, not a bug -- Stage B (task 2.7) is
defined as "before and after the alloc/free cycle," not "continuously
during." This task's self-test checks reservoir arithmetic directly
instead.

Authorized by Captain Bob ("Yes continue").

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-19 21:00:20 -04:00
..
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00

include/starkernel/

Headers for LithosAnanke, the bare-metal UEFI kernel (src/starkernel/). Built only via Makefile.starkernel; gated by __STARKERNEL__ when shared with hosted code.

  • uefi.h — UEFI protocol/type definitions consumed by the loader.
  • elf64.h, elf_loader.h — ELF64 parsing and kernel-image loading.
  • boot_info_offsets.h — struct-offset constants shared between the assembly bootstrap and the C boot path.
  • arch.h, apic.h, timer.h — architecture init, APIC interrupt controller, timer (TSC/HPET/APIC, 100 Hz heartbeat).
  • console.h, framebuffer.h, vt100.h — UART 16550 console, framebuffer driver, and VT100 terminal emulation over the framebuffer.
  • pmm.h, vmm.h, kmalloc.h — physical memory manager (bitmap allocator), 4-level x86_64 paging, kernel heap allocator.
  • pci.h, virtio_blk.h — PCI enumeration and the VirtIO block device driver (disk backend for the kernel block subsystem).
  • capsule.h, capsule_birth.h, capsule_loader.h, capsule_run.h, capsule_vm_physics.h, capsule_generated.h — capsule system types, birth protocol, physics-runtime capsule bindings, and the build-time- generated capsule directory (see tools/mkcapsule.c).
  • kernel_args.h, cmdline.h — boot-time kernel argument parsing (starforth.cfg / command line).
  • repl.h — kernel REPL.
  • log.h, doe_log.h — kernel logging and DoE metrics logging.
  • q48_16.h — kernel-build copy of Q48.16 fixed-point arithmetic.
  • xxhash64.h — content-addressing hash used for capsule IDs.
  • hal_memory.h — hardware-abstraction-layer memory interface.

Subdirectories:

  • hal/ — top-level hardware-abstraction-layer interface.
  • vm/ — kernel VM subsystem headers (capsule arena, parity logging, bootstrap wiring).
  • freestanding/ — minimal libc-shim headers (assert.h, ctype.h, errno.h, inttypes.h, math.h, sched.h, signal.h, stdio.h, stdlib.h, string.h, time.h, sys/time.h, sys/types.h) for building shared VM code in the freestanding kernel environment, where no real libc is available.