Power BI Paginated reports prefiltered data (run from Dynamics 365)

Parameters should work as normal, but sound like your want row level security. This article might help? https://docs.microsoft.com/en-us/power-bi/paginated-reports/paginated-reports-rls 

Or if you create a Power BI Dataset and use that as the datasource, then data is filtered at that level. https://docs.microsoft.com/en-us/power-bi/enterprise/service-admin-rls