Emulated Devices High-Level Design

Full virtualization device models can typically reuse existing native device drivers to avoid implementing front-end drivers. ACRN implements several fully virtualized devices, as documented in this section.

• USB Virtualization
• UART virtualization
• Watchdog virtualization
• AHCI virtualization
• System timer virtualization
• UART emulation in hypervisor
• RTC emulation in hypervisor
• Hostbridge emulation
• AT keyboard controller emulation
• Split Device Model
• Interfaces Design
• Shared memory based inter-VM communication