From: Avi Kivity <avi@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>,
"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
ming.m.lin@intel.com, sheng.yang@intel.com,
Jes Sorensen <Jes.Sorensen@redhat.com>,
KVM General <kvm@vger.kernel.org>,
Zachary Amsden <zamsden@redhat.com>,
Gleb Natapov <gleb@redhat.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Fr??d??ric Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: Enhance perf to support KVM
Date: Fri, 26 Feb 2010 13:53:03 +0200 [thread overview]
Message-ID: <4B87B61F.2070406@redhat.com> (raw)
In-Reply-To: <1267184916.22519.576.camel@laptop>
On 02/26/2010 01:48 PM, Peter Zijlstra wrote:
> On Fri, 2010-02-26 at 12:47 +0200, Avi Kivity wrote:
>
>> Not really. The guest and host admins are usually different people, who
>> may, being admins, even actively hate each other. The guest admin would
>> probably regard it as a security hole. It's probably useful for the
>> single-host scenario, and of course for developers.
>>
> LOL, let me be the malicious host admin, then you can be the guest,
> there is no way you can protect yourself. If you don't trust the host,
> don't use it.
>
> All your IO flows through the host, all your sekrit keys are in memory,
> there is no security.
>
That's true. But guest admins are going to be unhappy about a file
server serving their data to the host all the same.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2010-02-26 11:53 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1267068445.1726.25.camel@localhost>
[not found] ` <1267089644.12790.74.camel@laptop>
2010-02-26 2:49 ` Enhance perf to support KVM Zhang, Yanmin
2010-02-26 9:01 ` Ingo Molnar
2010-02-26 9:53 ` Avi Kivity
2010-02-26 10:35 ` Ingo Molnar
2010-02-26 10:47 ` Avi Kivity
2010-02-26 11:17 ` Ingo Molnar
2010-02-26 11:44 ` Avi Kivity
2010-02-26 12:46 ` Ingo Molnar
2010-02-26 12:54 ` Avi Kivity
2010-02-26 13:16 ` Ingo Molnar
2010-02-26 13:57 ` Jes Sorensen
2010-02-26 14:04 ` Avi Kivity
2010-02-26 14:23 ` Ingo Molnar
2010-02-26 15:06 ` Avi Kivity
2010-03-02 16:46 ` Paolo Bonzini
2010-03-02 17:12 ` Arnaldo Carvalho de Melo
2010-03-02 17:20 ` Paolo Bonzini
2010-03-02 17:24 ` Ingo Molnar
2010-03-02 17:17 ` Ingo Molnar
2010-03-07 14:17 ` Avi Kivity
2010-02-26 18:33 ` Avi Kivity
2010-02-27 10:56 ` KVM usability Ingo Molnar
2010-02-27 13:30 ` Jan Kiszka
2010-02-27 13:30 ` [Qemu-devel] " Jan Kiszka
2010-02-27 14:48 ` Ian Kirk
2010-02-27 15:32 ` Zachary Amsden
2010-02-27 17:25 ` Ingo Molnar
2010-03-01 15:33 ` Anthony Liguori
2010-03-01 16:48 ` Zachary Amsden
2010-03-01 17:41 ` Arnaldo Carvalho de Melo
2010-03-01 18:29 ` Zachary Amsden
2010-03-01 20:56 ` Ingo Molnar
2010-03-01 21:45 ` Anthony Liguori
2010-03-01 22:06 ` Zachary Amsden
2010-03-02 0:33 ` Ingo Molnar
2010-03-02 0:30 ` Ingo Molnar
2010-03-02 2:34 ` Anthony Liguori
2010-03-02 8:39 ` Chris Webb
2010-03-07 18:42 ` Avi Kivity
2010-03-02 10:30 ` Ingo Molnar
2010-03-07 9:35 ` Avi Kivity
2010-03-07 9:56 ` Pekka Enberg
2010-03-07 10:11 ` Avi Kivity
2010-03-07 18:42 ` Ingo Molnar
2010-03-07 15:14 ` Luca Barbieri
2010-03-07 18:16 ` Avi Kivity
2010-03-07 18:01 ` Arnaldo Carvalho de Melo
2010-03-07 18:15 ` Avi Kivity
2010-03-07 18:53 ` Arnaldo Carvalho de Melo
2010-03-07 19:05 ` Avi Kivity
2010-03-07 18:25 ` Avi Kivity
2010-03-01 9:25 ` Ingo Molnar
2010-03-01 15:36 ` Anthony Liguori
2010-03-01 15:14 ` Anthony Liguori
2010-03-01 15:42 ` Daniel P. Berrange
2010-03-02 1:12 ` Dustin Kirkland
2010-03-02 10:11 ` Peter Zijlstra
2010-03-02 13:37 ` Nikolai K. Bochev
2010-03-02 14:22 ` Gerd Hoffmann
2010-03-02 14:29 ` Ingo Molnar
2010-03-07 9:22 ` Avi Kivity
2010-03-02 14:37 ` Daniel P. Berrange
2010-03-02 14:52 ` Gerd Hoffmann
2010-03-02 14:56 ` Daniel P. Berrange
2010-03-02 15:13 ` Gerd Hoffmann
2010-03-04 20:00 ` Lucas Meneghel Rodrigues
2010-03-04 20:13 ` Zachary Amsden
2010-03-04 20:34 ` Anthony Liguori
2010-03-04 22:23 ` H. Peter Anvin
2010-03-05 7:44 ` Markus Armbruster
2010-03-07 11:25 ` Avi Kivity
2010-03-01 21:12 ` Dustin Kirkland
2010-03-01 21:59 ` Anthony Liguori
2010-03-02 2:34 ` Alexander Graf
2010-03-02 2:36 ` Anthony Liguori
2010-03-09 13:32 ` Avi Kivity
2010-03-09 14:32 ` Dustin Kirkland
2010-03-09 14:38 ` Alexander Graf
2010-03-09 14:50 ` Anthony Liguori
2010-03-09 14:52 ` Avi Kivity
2010-03-09 14:57 ` Anthony Liguori
2010-03-09 17:11 ` Avi Kivity
2010-03-09 17:27 ` Anthony Liguori
2010-03-09 17:30 ` Avi Kivity
2010-03-09 14:49 ` Anthony Liguori
2010-03-09 14:54 ` Avi Kivity
2010-03-02 3:02 ` Dustin Kirkland
2010-03-02 8:21 ` Chris Webb
2010-03-02 14:54 ` Dustin Kirkland
[not found] ` <428008581.20100302103400@eternallybored.org>
2010-03-07 11:35 ` Avi Kivity
2010-04-04 12:31 ` High CPU use of -usbdevice tablet (was Re: KVM usability) Chris Webb
2010-04-04 12:31 ` [Qemu-devel] " Chris Webb
2010-04-04 14:25 ` Paul Brook
2010-04-04 14:25 ` Paul Brook
2010-04-04 16:58 ` Avi Kivity
2010-04-04 16:58 ` Avi Kivity
2010-04-04 21:03 ` Paul Brook
2010-04-04 21:03 ` Paul Brook
2010-04-04 21:53 ` Paul Brook
2010-04-04 21:53 ` Paul Brook
2010-04-05 8:22 ` Avi Kivity
2010-04-05 8:22 ` Avi Kivity
2010-03-03 2:57 ` KVM usability Ross Boylan
2010-03-03 8:55 ` Daniel P. Berrange
2010-03-03 15:42 ` Ross Boylan
2010-03-07 14:29 ` Avi Kivity
2010-02-26 11:48 ` Enhance perf to support KVM Peter Zijlstra
2010-02-26 11:53 ` Avi Kivity [this message]
2010-02-26 20:17 ` Anthony Liguori
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