Part of the RISC-V port.
- QEMU
virt with OpenSBI (-bios default), both aia=none (PLIC + SBI IPI) and aia=aplic-imsic (AIA path), several harts, virtio-pci devices to assign.
- Host config:
CONFIG_MULTIKERNEL=y, RISCV_SBI, KEXEC_FILE, HOTPLUG_CPU, RISCV_APLIC, RISCV_IMSIC, SIFIVE_PLIC.
- kerf support for RISC-V:
Image loading, DTB handling, hartid-based CPU names (sparse hartids).
- Scripted smoke test: spawn on 2 harts, ring round-trip, graceful halt (all harts STOPPED),
poweroff/reboot inside the spawn leaves the host alive, 50x re-spawn loop (I-cache stub), hart hot-add to a running spawn.
- Docs: RISC-V section in
Documentation/multikernel/usage.rst, including the fence.i stub rationale and the SRST hazard.
Hardware after QEMU: SG2042 (Milk-V Pioneer: 64 harts, PLIC, PCIe) for the PLIC path at a scale where multikernel matters.
Part of the RISC-V port.
virtwith OpenSBI (-biosdefault), bothaia=none(PLIC + SBI IPI) andaia=aplic-imsic(AIA path), several harts, virtio-pci devices to assign.CONFIG_MULTIKERNEL=y,RISCV_SBI,KEXEC_FILE,HOTPLUG_CPU,RISCV_APLIC,RISCV_IMSIC,SIFIVE_PLIC.Imageloading, DTB handling, hartid-based CPU names (sparse hartids).poweroff/rebootinside the spawn leaves the host alive, 50x re-spawn loop (I-cache stub), hart hot-add to a running spawn.Documentation/multikernel/usage.rst, including thefence.istub rationale and the SRST hazard.Hardware after QEMU: SG2042 (Milk-V Pioneer: 64 harts, PLIC, PCIe) for the PLIC path at a scale where multikernel matters.