Hi Kevin, On Thu, 9 Feb 2023 02:08:23 +0000, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote: > > @@ -1976,6 +1976,8 @@ static int domain_context_mapping_one(struct > > dmar_domain *domain, > > pds = context_get_sm_pds(table); > > context->lo = (u64)virt_to_phys(table->table) | > > context_pdts(pds); > > + if (!ecap_coherent(iommu->ecap)) > > + clflush_cache_range(table->table, > > sizeof(u64)); > > this is not required if cache is already flushed when the table is > allocated. yes you're right. Thanks, Jacob
