[PATCH v8 00/13] Fix the on-flight DMA issue on system with amd iommu

When kernel panicked and jump into the kdump kernel, DMA started by the 1st kernel is not stopped, this is called on-flight DMA. In the current code it will disable iommu and build new translation table and attach device to it. This will cause: 1. IO_PAGE_FAULT warning message can be seen. 2.

[PATCH v8 00/13] Fix the on-flight DMA issue on system with amd iommu

When kernel panicked and jump into the kdump kernel, DMA started by the 1st kernel is not stopped, this is called on-flight DMA. In the current code it will disable iommu and build new translation table and attach device to it. This will cause: 1. IO_PAGE_FAULT warning message can be seen. 2.