On Fri, Sep 29, 2017 at 05:44:02AM +0000, Tian, Kevin wrote:
> Thinking about anyway we need to factor page table code in the
> guest side. It's not a big deal to further factor PASID code due to the
> same reason. Of course there are additional format info to be
> communicated back-and-forth, but the framework should be same
> for both page table and PASID purposes. Also such change is restricted
> within IOMMU sub-system. :-)
Right, and in the common case where the guest runs a distro-kernel which
has the iommu-drivers compiled-in, the code to build the pasid-tables is
also already available and vIOMMU just needs to use it. So this is the
easiest approach.
Regards,
Joerg
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