Re: [PATCH v2 00/19] iommufd: Add VIOMMU infrastructure (Part-1)

On Sun, Sep 29, 2024 at 03:19:42PM +0800, Yi Liu wrote:

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So their viommu HW concepts come along with a requirement that there be a fixed translation for the VM, which we model by attaching a S2 HWPT to the VIOMMU object which get's linked into the IOMMU HW as the translation for the queue memory.

Is the mapping of the S2 be static? or it an be unmapped per userspace?

In principle it should be dynamic, but I think the vCMDQ stuff will struggle to do that

Jason