On Wed, Oct 02, 2013 at 12:17:35AM +0900, Peter Maydell wrote: > On 1 October 2013 23:54, Juan Quintela <quintela@xxxxxxxxxx> wrote: > > - Multicore on Multicore: > > TCG has no locking, no people really working there (Alex Graf?) > > Apart from the TCG locking issues (which are conceptually > tractable if anybody cares to try to fix them), the real complication > of multicore-on-multicore is how you handle discrepancies between > the memory models of host and guest, and in particular what > you do if your guest has a stronger memory model than your host: > do you insert barrier insns after every guest load/store? fall back > to not doing mp-on-mp? something else? If you want applications to always work then you need to insert barriers. It's expensive. Stefan -- 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
