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ARM64 port, stages 0 to 3: shared groundwork, aarch64-unknown-toyos with std and the userland, and the loader and kernel reach the PL011 on virt - #524

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Japabu merged 57 commits into

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wt/toyos-arm64

Sep 26, 2026

Commits on Sep 26, 2026
- toyos-elf, toyos-ld: the machine is a parameter, not x86-64
  
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- build: one Arch names every triple, QEMU, firmware, CPU and accelerator
  
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- kernel: arch/ is x86_64/ behind one selector; syscalls, one IrqGuard, one MSI doorbell
  
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- Merge origin/main
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- kernel: Mmio carries writel/readl ordering, and every DMA barrier is named
  
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- aavmf: QEMU's own edk2-stable202408 ArmVirtQemu firmware, pinned beside OVMF
  
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- kernel: the PC's own devices, the page tables and the Hw boundary live under arch/x86_64
  
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- kernel: generic code names the machine by concept, and carries no x86 instruction
  
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- Architecture rules: assembly, target_arch and arch paths live where the owner put them
  
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- kernel: shootdown origins, and the syscall window's watchdog, named by concept
  
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- AArch64 stages 2 and 3: the loader and the kernel reach the PL011 on virt
  
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- harness: Profile::Virt boots AArch64 under HVF, in a local tier
  
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- Merge origin/main: the licence gate (#523)
  
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- kernel: the Relaxed audit — one data race and three publications fixed
  
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- The host job's gates, green on the port: clippy on both kernels, the
  
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- Merge origin/main: the clean-room bcachefs keys (#526)
  
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- serial: a lost try_lock no longer releases the backend it lost to
  
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- issues: blocking_read_window completed 26 of 500 round trips beside other guests
  
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- toyos-ld: 0.3.0, because this branch changed what it builds
  
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- build: a worktree whose fork names another compiler builds its own
  
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- issues: the harness reads a contention-exposed defect as a Sched, and issue files cite moved paths
  
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- toyos-ld: AArch64 TLS descriptors, variant I, and imports through the GOT
  
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- The port's stage 1: aarch64-unknown-toyos, std and the userland for AArch64
  
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- toyos-ld: back to main's, by the owner's ruling that AArch64 links through rust-lld
  
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- AArch64 links through rust-lld: the userland, the kernel and the loader
  
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- AArch64 boots without firmware's five-second wait
  
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- NOTICE: the pinned AAVMF carries OpenSSL, under Apache-2.0
  
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- issues: two suites in one worktree race on the C corpus's libc archive
  
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- issues: blocking_read_window reds on main too, at the same rate
  
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- Merge origin/main: every test's scratch goes with it (#529)
  
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- issues: the LAN tests' sockets under the suite's TMPDIR pass the Unix socket limit
  
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- issues: drop an unmeasured claim from the socket-path issue
  
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- serial: the backend lock is a file kernel-loom drives, and a lost try_lock is modelled
  
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- aarch64: HCR_EL2 before any EL1 register, read back, and a boot that enters at EL2
  
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- TLS: each machine's psABI variant, and R_AARCH64_TLSDESC refused by name
  
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- sourcegate: core::arch and std::arch are needles in any spelling
  
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- compiler: the key names LLVM and the tools, and a missing primary record is refused
  
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- libc: the architecture module's copies, differentially on the host
  
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- issues: the x86 left in generic code, each owned by a stage of the port
  
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- Answer the review's notes: Mmio's store-only ordering, an inlined DF witness, two stale comments
  
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- Merge origin/main: storage stage 3, blockd and SYS_DEVICE_DMA_MAP (#525)
  
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- kernel: #525's domain room and lent RAM, named the way this branch names them
  
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- Lint the serial-lock model clean, and measure the MPIDR the slot issue rests on
  
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- Merge origin/main: the layout as ruled (#531)
  
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- issues: the primary rebuilds its compiler on compiler/ alone
  
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- issues: the lane-socket path issue is main's, filed first
  
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- toolchain: the hosted rustc builds without lld, then stage2 is reassembled with it
  
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- sourcegate: a glob or a rename of core/std names the arch module
  
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- aarch64: the loader refuses a CPU whose HCR_EL2.E2H is RES1, by name
  
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- kernel: an executable's TLS descriptor is refused on its count
  
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- compiler: every placement sweeps the compilers nobody names
  
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- issues: stage 4 owns the EL2 writes stage 3 cannot red; the key issue has an owner
  
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- issues: quiesce_wakes_on_the_last_exit lost its READY again, on #524's branch
  
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- Merge origin/main: self-update stage 1 (#530) and the toolkit forks (#528)
  
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- sdk: iced-counter's lock follows toyos-window to 0.19.0
  
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- issues: two main reds the nightly exposed, and two loaded recurrences
  
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- src/ and kernel/ CLAUDE.md: a worktree builds its own compiler, and the moved syscall and fpu paths
  
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Commits

Commits on Sep 26, 2026