On Fri, Dec 09, 2011 at 01:49:35PM +0100, Carsten Otte wrote: > This patch introduces an interface to access the guest visible > storage keys. It supports three operations that model the behavior > that SSKE/ISKE/RRBE instructions would have if they were issued by > the guest. These instructions are all documented in the z architecture > principles of operation book. > > Signed-off-by: Carsten Otte <cotte@xxxxxxxxxx> > --- [...] > + spin_lock(¤t->mm->page_table_lock); > + ptep = ptep_for_addr(addr); > + if (!ptep) > + goto out_unlock; FWIW, this is also a bit odd: if the guest would perform a storage key operation on such an address it would succeed. If the host will do it, it will fail (which doesn't match your description above). No? -- 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
