hvisor Overall Architecture

• CPU Virtualization

  • Architecture Compatibility: Supports architectures such as aarch64, riscv64, and loongarch, with dedicated CPU virtualization components for each architecture.
  • CPU Allocation: Uses static allocation method, pre-determining the CPU resources for each virtual machine.

• Memory Virtualization

  • Two-stage Page Table: Utilizes two-stage page table technology to optimize the memory virtualization process.

• Interrupt Virtualization

  • Interrupt Controller Virtualization: Supports virtualization of different architecture's interrupt controllers like ARM GIC and RISC-V PLIC.
  • Interrupt Handling: Manages the transmission and processing flow of interrupt signals.

• I/O Virtualization

  • IOMMU Integration: Supports IOMMU to enhance the efficiency and security of DMA virtualization.
  • VirtIO Standard: Follows the VirtIO specification, providing high-performance virtual devices.
  • PCI Virtualization: Implements PCI virtualization, ensuring virtual machines can access physical or virtual I/O devices.