arceos-guestmode vs arceos-guestaspace vs arceos-guestvdev

ArceOS Guest Mode (Hypervisor): runs a minimal guest OS (skernel) using hardware-assisted virtualization — RISC-V H-extension, ARM AArch64 EL2, and AMD SVM — with VM exit handling and second-stage page table support

ArceOS Guest Address Space (Hypervisor): runs a guest OS with loop-based VM exit handling and nested page fault support — RISC-V H-extension, ARM AArch64 EL2, and AMD SVM

ArceOS Guest Virtual Device (Hypervisor): runs a guest OS with virtual device support (timer, console, NPF passthrough) — RISC-V H-extension, ARM AArch64 EL2, and AMD SVM