Avi Kivity wrote: > Anthony Liguori wrote: >>>> >>> For KVM, it should be okay as well. But we can replace two CR4 accesses >>> with just one hypercall. >>> >> >> I was thinking the same thing :-) >> >> I was actually thinking about adding a hypercall to set/clear a bit >> in a control register. The thought here is that it would be useful >> not just for the global bit but also for CR0.TS although we would >> need another paravirt_op hook for stts. >> > > Are global tlb flushes frequent enough to warrant optimization?
Not very, unless you have a most unusual workload on 32-bit with highmem and suffer from kmap exhaustion. Zach ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
