QEMU-KVM虚拟PCI设备优化方法

Optimization of the PCI Device Virtualization of QEMU-KVM

随着QEMU-KVM虚拟机的不断普及,虚拟机开发者会将各种PCI设备集成到QEMU中,因此在QEMU中如何来虚拟一个期望的硬件主板环境就变得非常重要。本文主要研究了QEMU如何虚拟PCI设备,并且成功虚拟一个带PCI-PCI桥的PCI设备;另一方面本文针对QEMU无法给PCI设备分配指定IO地址问题提出了有效解决方案并且进行了优化。

In pace with popularization of QEMU-KVM virtual machine, the developer will integrate some new PCI Devices to QEMU. So it will be more and more important to virtualize an expected hardware environment. This paper focuses on researching how to virtualize a PCI device with PCI-PCI Bridge in QEMU successfully. In the other hand, this paper provides a effective solution to allocate a fix IO address to PCI device and gives some advice for improving.