Re: Standardizing an MSR or other hypercall to get an RNG seed?

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Subject: Re: Standardizing an MSR or other hypercall to get an RNG seed?
From: "H. Peter Anvin" <hpa@xxxxxxxxx>
Date: Fri, 19 Sep 2014 09:40:07 -0700
Cc: David Hepkin <davidhep@xxxxxxxxxxxxx>, Paolo Bonzini <pbonzini@xxxxxxxxxx>, Jun Nakajima <jun.nakajima@xxxxxxxxx>, KY Srinivasan <kys@xxxxxxxxxxxxx>, Mathew John <mathewj@xxxxxxxxxxxxx>, "Theodore Ts'o" <tytso@xxxxxxx>, John Starks <John.Starks@xxxxxxxxxxxxx>, kvm list <kvm@xxxxxxxxxxxxxxx>, Niels Ferguson <niels@xxxxxxxxxxxxx>, Jake Oshins <jakeo@xxxxxxxxxxxxx>, Linux Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>
In-reply-to: <20140919163749.GI26540@minantech.com>
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On 09/19/2014 09:37 AM, Gleb Natapov wrote:
>
> Linux detects what hypervior it runs on very early

Not anywhere close to early enough.  We're talking for uses like kASLR.

	-hpa

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Follow-Ups:
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
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References:
- RE: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: KY Srinivasan
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Nakajima, Jun
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Paolo Bonzini
- RE: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: KY Srinivasan
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Nakajima, Jun
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Andy Lutomirski
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
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- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Andy Lutomirski
- RE: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: David Hepkin
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Andy Lutomirski
- Re: Standardizing an MSR or other hypercall to get an RNG seed?
  - From: Gleb Natapov

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