john cooper wrote: > As before a cpu feature 'check' option is added which warns when > feature flags (either implicit in a cpu model or explicit on the > command line) would have otherwise been quietly unavailable to a > guest: > > # qemu-system-x86_64 ... -cpu Nehalem,check > warning: host cpuid 0000_0001 lacks requested flag 'sse4.2' [0x00100000] > warning: host cpuid 0000_0001 lacks requested flag 'popcnt' [0x00800000]
That's a nice feature. Can we have a 'checkfail' option which refuses to run if a requested capability isn't available? Thanks. I foresee wanting to iterate over the models and pick the latest one which a host supports - on the grounds that you have done the hard work of ensuring it is a reasonably good performer, while "probably" working on another host of similar capability when a new host is made available. -- Jamie -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
