On 11/15/2010 05:59 PM, Avi Kivity wrote: > On 11/15/2010 11:55 AM, Xiao Guangrong wrote: >> >> > Or another thread may have mmap()ed something else over the >> >> > same address. >> >> >> >> The mmap virtual address is also visible for other threads since the >> >> threads >> >> have the same page table, so i think this case is the same as above? >> > >> > Again, don't we install the wrong spte in this case? >> > >> >> I think it doesn't corrupts spte since we will walk guest page table >> again >> and map it to shadow pages when we retry #PF. > > Well, you're right, we don't use any gfn/pfn info from the async page > fault. > > However, we're still not modelling the cpu accurately. For example we > will set dirty and accessed bits, or inject a page fault if the gpte > turns out to be not present. > Yes, i missed this, will cook it. Thanks. -- 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
