> On Jun 22, 2016, at 3:41 PM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > > > On 22/06/2016 04:34, KarimAllah Ahmed wrote: >> pfn_valid check is not sufficient because it only checks if a page has a struct >> page or not, if for example "mem=" was passed to the kernel some valid pages >> won't have a struct page. This means that if guests were assigned valid memory >> that lies after the mem= boundary it will be passed uncached to the guest no >> matter what the guest caching attributes are for this memory. > > How can you pass memory after the mem= boundary to the guest? Does my previous reply answer your question? > > Paolo > Amazon Development Center Germany GmbH Berlin - Dresden - Aachen main office: Krausenstr. 38, 10117 Berlin Geschaeftsfuehrer: Dr. Ralf Herbrich, Christian Schlaeger Ust-ID: DE289237879 Eingetragen am Amtsgericht Charlottenburg HRB 149173 B -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
