iommu系列二主要介绍了dma remapping的工作原理，这一篇我们来详细介绍一下iommu interrupt remapping 底层硬件工作原理和驱动层相关初始化流程 底层硬件工作原理 谈到中断大家可能不太会直接联想到iommu这个硬件，而事实上在虚拟化未 ...

硬件架构. 为了让大家对iommu有个直观的认识，我们先从硬件架构上看一下iommu是个什么东东。 图1. 如上图所示，iommu就是上图所展示的DMA Remapping Unit，通常一台硬件服务器上会有多个DMA Remapping Unit，它下面可以对接pcie设备，也可以对接ioapic, HPET设备。

Remapping is a term advanced by Mishuana Goeman, a member of the Tonawanda Band of Seneca, to describe a process that can undermine the map’s role as a tool of settler colonialism.

Remapping does put extra strain on an engine, but not a dangerous amount if it’s done properly. Remapping companies will carefully monitor the temperatures and pressures that remaps put the ...