From: tytso@mit.edu
To: Andy Lutomirski <luto@amacapital.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
kvm list <kvm@vger.kernel.org>,
Florian Weimer <fweimer@redhat.com>, Kees Cook <kees@outflux.net>
Subject: Re: random: Providing a seed value to VM guests
Date: Thu, 1 May 2014 22:28:32 +0000 [thread overview]
Message-ID: <20140501222832.GD25829@thunk.org> (raw)
In-Reply-To: <CALCETrXu_bFjemS3TZNDDes=cBgkUXtDH-6cA84JcNjD0AdZ7A@mail.gmail.com>
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.
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?
- Ted
next prev parent reply other threads:[~2014-05-01 22:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-01 19:02 random: Providing a seed value to VM guests Andy Lutomirski
2014-05-01 19:26 ` tytso
2014-05-01 19:40 ` H. Peter Anvin
2014-05-01 20:16 ` Andy Lutomirski
2014-05-01 20:30 ` H. Peter Anvin
2014-05-01 20:32 ` Andy Lutomirski
2014-05-01 20:39 ` tytso
2014-05-01 20:56 ` Andy Lutomirski
2014-05-01 21:01 ` H. Peter Anvin
2014-05-01 21:06 ` Andy Lutomirski
2014-05-01 22:28 ` tytso [this message]
2014-05-01 22:32 ` Andy Lutomirski
2014-05-01 22:46 ` H. Peter Anvin
2014-05-01 22:56 ` Andy Lutomirski
2014-05-01 23:00 ` H. Peter Anvin
2014-05-01 19:41 ` H. Peter Anvin
[not found] <20140428195913.E0A0143994596@oldenburg.str.redhat.com>
[not found] ` <20140428214112.GC7857@thunk.org>
[not found] ` <535FE68C.8060002@redhat.com>
[not found] ` <20140429182610.GA19325@thunk.org>
[not found] ` <53616293.3080308@mit.edu>
[not found] ` <20140501020627.GA25248@thunk.org>
[not found] ` <1be5350d-89f9-44b9-8d1b-e3e591741940@email.android.com>
[not found] ` <20140501150549.GA24388@thunk.org>
[not found] ` <CALCETrUQRqKEbWps5Nxqk57vCYmuvcA6pYAL7OiqJy8sE8yh=g@mail.gmail.com>
2014-05-01 18:53 ` [PATCH] random: Add "initialized" variable to proc Andy Lutomirski
2014-05-01 18:59 ` random: Providing a seed value to VM guests H. Peter Anvin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140501222832.GD25829@thunk.org \
--to=tytso@mit.edu \
--cc=fweimer@redhat.com \
--cc=hpa@zytor.com \
--cc=kees@outflux.net \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@amacapital.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox