I have a question about vfio_iommu_type1.allow_unsafe_interrupts=1, can you help me?


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Many article mentions that enabling vfio_iommu_type1.allow_unsafe_interrupts=1 may have security risks.

I have a question: Does the security issue here refer to the fact that the virtual machine can only be caused by penetrating the physical PCI/PCIE device? If pure virtualization (such as only starting a standard virtual machine without any penetration) will not cause this security problem?

 

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