[Xen-devel] ATS and dependent features

["Jan Beulich" <JBeulich@xxxxxxxx>]

All,

while investigating an issue with some device not working under Xen
without "ats=off", I started wondering whether it is correct to allow
the Dom0 kernel concurrent control over ATS, PRI, and PASID - it
would seem to me that with Xen controlling the IOMMU, it should
also have exclusive control over the enabling of those features.

Thanks for any comments in this regard,
Jan


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