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From: Paolo Bonzini <pbonzini@redhat.com>
To: David Vrabel <david.vrabel@citrix.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Linux Virtualization <virtualization@lists.linux-foundation.org>
Cc: Mathew John <mathewj@microsoft.com>,
	Theodore Ts'o <tytso@mit.edu>, Jim Mattson <jmattson@vmware.com>,
	kvm list <kvm@vger.kernel.org>, Gleb Natapov <gleb@kernel.org>,
	Niels Ferguson <niels@microsoft.com>,
	David Hepkin <davidhep@microsoft.com>,
	Doug Covelli <dcovelli@vmware.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Jake Oshins <jakeo@microsoft.com>,
	xen-devel@lists.xenproject.org,
	Alok Kataria <akataria@vmware.com>,
	John Starks <John.Starks@microsoft.com>
Subject: Re: [Xen-devel] [RFC] Hypervisor RNG and enumeration
Date: Thu, 30 Oct 2014 13:25:42 +0100	[thread overview]
Message-ID: <54522E46.1000503@redhat.com> (raw)
In-Reply-To: <54522D40.8040405@citrix.com>

On 10/30/2014 01:21 PM, David Vrabel wrote:
> I would add:
> 
>   If the hypervisor's pool of random data is exhausted, it MAY
>   return 0.  The hypervisor MUST provide at least 4 (?) non-zero
>   numbers to each guest.

Mandating "non-zero numbers" sounds like a bad idea.  Just use the RNG
for what it was designed; returning non-random numbers will not be a
problem.

Paolo

  reply	other threads:[~2014-10-30 12:25 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-29  5:19 [RFC] Hypervisor RNG and enumeration Andy Lutomirski
2014-10-29 10:37 ` [Xen-devel] " Andrew Cooper
2014-10-29 13:45   ` Paolo Bonzini
2014-10-29 13:57     ` David Vrabel
2014-10-29 14:01       ` Paolo Bonzini
2014-10-29 16:07   ` H. Peter Anvin
2014-10-29 16:23     ` Andy Lutomirski
2014-10-29 16:07   ` H. Peter Anvin
2014-10-29 16:07   ` H. Peter Anvin
2014-10-29 15:14 ` Ian Jackson
2014-10-29 16:13   ` Andy Lutomirski
2014-10-29 16:29     ` Jake Oshins
2014-10-29 16:50       ` Andy Lutomirski
2014-10-29 18:22       ` Paolo Bonzini
2014-10-30 12:21 ` David Vrabel
2014-10-30 12:25   ` Paolo Bonzini [this message]
2014-10-30 14:45   ` Andy Lutomirski
2014-10-30 15:12     ` Ian Campbell
2014-10-30 14:33 ` Roger Pau Monné

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