On Thu, May 01, 2014 at 01:32:55PM -0700, Andy Lutomirski wrote: > On Thu, May 1, 2014 at 1:30 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote: > > RDSEED is not synchronous. It is, however, nonblocking. > > What I mean is: IIUC it's reasonable to call RDSEED a few times in a > loop and hope it works. It makes no sense to do that with > /dev/random. RDSEED is allowed to return an error if there is insufficient entropy. So long as the caller understands that this is an emulated instruction, I don't see a problem. - Ted -- 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