2015-04-21 14:18+0200, Paolo Bonzini: > On 19/03/2015 23:51, James Sullivan wrote: > > I played around with native_compose_msi_msg and discovered the following: > > > > * dm=0, rh=0 => Physical Destination Mode > > * dm=0, rh=1 => Failed delivery > > * dm=1, rh=0 => Logical Destination Mode, No Redirection > > * dm=1, rh=1 => Logical Destination Mode, Redirection > > > > So it seems to be the case that logical destination mode is used whenever > > DM=1, regardless of RH. Furthermore, the case where DM=0 and RH=1 is > > undefined, as was indicated in the closing response to the thread in > > https://software.intel.com/en-us/forums/topic/288883 : > > So this means this patch is not necessary, right? Yes, and this patch was obsolete even before; the latest version is [PATCH v4 0/2] kvm: x86: Implement handling of RH=1 for MSI delivery in KVM which delivers DM=1+RH=1 as lowest priority. (Several unfortunate things made this quite confusing ...) -- 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
