Avi Kivity wrote: > Glauber Costa wrote: >>> >>> This lock is fairly annoying. What do you think about taking it in >>> vcpu_run unconditionally and only dropping it while in guest mode? >>> Most exits are mmu (or with npt, mmio) so they need to take it anyway. >>> >> Can't see the point. This is taken before updates to the wall clock, >> not system time. > > I mean in general, not related to wall clock.
Oh, sorry. >> [EMAIL PROTECTED] linux-2.6 (master)]$ git grep down_read.*slots_lock >> arch/x86/kvm/ | wc -l >> 16 > > We take the lock for read 16 times, could be narrowed down to probably > once (with a drop and re-take around guest mode). Since it will be written to so rarely, that's probably fine. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
