On 05/01/2014 03:32 PM, Andy Lutomirski wrote: > On Thu, May 1, 2014 at 3:28 PM, <tytso@xxxxxxx> wrote: >> On Thu, May 01, 2014 at 02:06:13PM -0700, Andy Lutomirski wrote: >>> >>> I still don't see the point. What does this do better than virtio-rng? >> >> I believe you had been complaining about how complicated it was to set >> up virtio? And this complexity is also an issue if we want to use it >> to initialize the RNG used for the kernel text ASLR --- which has to >> be done very early in the boot process, and where making something as >> simple as possible is a Good Thing. > > It's complicated, so it won't be up until much later in the boot > process. This is completely fine for /dev/random, but it's a problem > for /dev/urandom, ASLR, and such. > >> >> And since we would want to use RDRAND/RDSEED if it is available >> *anyway*, perhaps in combination with other things, why not use the >> RDRAND/RDSEED interface? > > Because it's awkward. I don't think it simplifies anything. > It greatly simplifies discovery, which is a Big Deal[TM] in early code. -hpa -- 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
