From: Vadim Rozenfeld <vrozenfe@redhat.com>
To: dlaor@redhat.com
Cc: Avi Kivity <avi@redhat.com>, "--[ UxBoD ]--" <uxbod@splatnix.net>,
kvm@vger.kernel.org
Subject: Re: KVM, Entropy and Windows
Date: Thu, 17 Feb 2011 13:09:58 +0200 [thread overview]
Message-ID: <1297940998.4745.17.camel@localhost> (raw)
In-Reply-To: <4D5CFA82.6000708@redhat.com>
On Thu, 2011-02-17 at 12:37 +0200, Dor Laor wrote:
> On 02/17/2011 12:09 PM, Vadim Rozenfeld wrote:
> > On Thu, 2011-02-17 at 11:11 +0200, Avi Kivity wrote:
> >> On 02/16/2011 09:54 PM, --[ UxBoD ]-- wrote:
> >>> Hello all,
> >>>
> >>> I believe I am hitting a problem on one of our Windows 2003 KVM guests were I believe it is running out of Entropy and causing SSL issues.
> >>>
> >>> I see that there is a module called virtio-rng which I believe passes the HW entropy source through to the guest but does this work on Windows as-well ?
> >>>
> >>
> >> AFAIK there is no Windows driver for virtio-rng. Seems like a good
> >> idea. Vadim?
> > virtio-rng driver for windows is not a big deal. IMO, the real problem
> > will be to force Windows to use for CriptoApi.
>
> What's the implication of it? good or bad?
iirc, Vista and higher use a new generation of cryptography API.
CriptoApi can be integrated with smart cards sub-system. If we
can make Windows virtio-rng driver to be attachable to smart cart
devstack, I think we can solve the problem.
> Do you know what hyper-v is doing for it?
>
No idea.
> >>
> >>> If it doesn't any ideas on how I can increase the amount of entropy being generated on a headless system ? or even monitor entropy on a Windows system ?
> >>
> >> No idea. Maybe you could ask Windows to collect entropy from packet
> >> timings.
> >>
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe kvm" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
>
prev parent reply other threads:[~2011-02-17 11:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-16 19:54 KVM, Entropy and Windows --[ UxBoD ]--
2011-02-17 9:11 ` Avi Kivity
2011-02-17 10:09 ` Vadim Rozenfeld
2011-02-17 10:37 ` Dor Laor
2011-02-17 11:09 ` Vadim Rozenfeld [this message]
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