On Wed, Apr 10, 2013 at 12:17:21PM +0200, Borislav Petkov wrote: > On Wed, Apr 10, 2013 at 01:08:46PM +0300, Gleb Natapov wrote: > > We can add the emulation, but we should not start announcing the > > instruction availability to a guest if host cpu does not have it > > by default. This may trick a guest into thinking that movbe is the > > fastest way to do something when it is not. > > That could be a problem because kernels compiled for atom look at CPUID > to check for MOVBE support and refuse to continue if there's none. > You will still be able to force it on qemu command line by adding +movbe to cpu definition, it just not be the default. -- Gleb. -- 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
