[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH] VT-d: fix caching mode IOTLB flushing
On 19/08/2021 09:05, Jan Beulich wrote: While for context cache entry flushing use of did 0 is indeed correct (after all upon reading the context entry the IOMMU wouldn't know any domain ID if the entry is not present, and hence a surrogate one needs to be used), for IOTLB entries the normal domain ID (from the [present] context entry) gets used. See sub-section "IOTLB" of section "Address Translation Caches" in the VT-d spec. Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Paul Durrant <paul@xxxxxxx>
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