转自
VT-d简介 https://blog.csdn.net/lindahui2008/article/details/83477179
DMA重定向 https://blog.csdn.net/lindahui2008/article/details/83715106
iova概念 https://software.intel.com/en-us/articles/memory-in-dpdk-part-2-deep-dive-into-iova
中断重映射 https://blog.csdn.net/lindahui2008/article/details/83954861
interrupt posting https://blog.csdn.net/lindahui2008/article/details/84162715
DMAR表组织结构 https://blog.csdn.net/lindahui2008/article/details/84443942