From: "H. Peter Anvin" <hpa@zytor.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Anthony Liguori <anthony@codemonkey.ws>,
Stefan Berger <stefanb@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] virtio-rng and fd passing
Date: Mon, 04 Mar 2013 20:44:54 -0800 [thread overview]
Message-ID: <51357846.9060503@zytor.com> (raw)
In-Reply-To: <5131EF32.5010808@redhat.com>
On 03/02/2013 04:23 AM, Paolo Bonzini wrote:
> Il 02/03/2013 04:13, Anthony Liguori ha scritto:
>> There is no valid use-case of rng-random other than using /dev/random.
>> In fact, it was probably a mistake to even allow a filename to be
>> specified because it lets people do silly things (like /dev/urandom).
>>
>> If you want anything other than /dev/random, you should use rng-egd.
>
> /dev/hwrng makes sense too.
Only if the host isn't using it, which it almost certainly should if
there is something there. On the other hand, yes, it is
cryptographically sound (since it presents itself as /dev/hwrng in the
guest!) and it does make sense for a very thin host.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2013-03-05 4:45 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <512FF819.7050505@redhat.com>
2013-03-01 9:51 ` [Qemu-devel] virtio-rng and fd passing Paolo Bonzini
2013-03-04 4:29 ` Amit Shah
2013-03-06 6:20 ` Amit Shah
2013-03-01 19:37 ` H. Peter Anvin
2013-03-01 20:13 ` Stefan Berger
2013-03-01 20:15 ` H. Peter Anvin
2013-03-01 20:41 ` Paolo Bonzini
2013-03-01 20:04 ` Anthony Liguori
2013-03-01 20:34 ` Stefan Berger
2013-03-01 21:08 ` Anthony Liguori
2013-03-01 21:13 ` Eric Blake
2013-03-01 23:05 ` Anthony Liguori
2013-03-01 23:14 ` Eric Blake
2013-03-01 23:59 ` Anthony Liguori
2013-03-02 0:29 ` Eric Blake
2013-03-02 3:13 ` Anthony Liguori
2013-03-02 12:23 ` Paolo Bonzini
2013-03-03 21:05 ` Anthony Liguori
2013-03-04 21:57 ` Eric Blake
2013-03-04 22:24 ` Anthony Liguori
2013-03-04 22:35 ` Eric Blake
2013-03-05 4:44 ` H. Peter Anvin [this message]
2013-03-04 21:54 ` Eric Blake
2013-03-02 0:34 ` Stefan Berger
2013-03-02 3:17 ` Anthony Liguori
2013-03-02 3:34 ` Stefan Berger
2013-03-03 21:06 ` Anthony Liguori
2013-03-04 15:27 ` Corey Bryant
2013-03-04 10:29 ` Daniel P. Berrange
2013-03-04 15:55 ` Corey Bryant
2013-03-01 22:59 ` Peter Krempa
2013-03-01 23:14 ` Anthony Liguori
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