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From: Avi Kivity <avi@redhat.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>,
	Joerg Roedel <joro@8bytes.org>, KVM General <kvm@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Zachary Amsden <zamsden@redhat.com>,
	Gleb Natapov <gleb@redhat.com>,
	ming.m.lin@intel.com, "Zhang,
	Yanmin" <yanmin_zhang@linux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Arjan van de Ven <arjan@infradead.org>,
	Fr??d??ric Weisbecker <fweisbec@gmail.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: KVM PMU virtualization
Date: Fri, 26 Feb 2010 15:33:21 +0200	[thread overview]
Message-ID: <4B87CDA1.7070103@redhat.com> (raw)
In-Reply-To: <20100226132751.GA20013@elte.hu>

On 02/26/2010 03:27 PM, Ingo Molnar wrote:
>
> For Linux<->Linux the sanest, tier-1 approach would be to map sys_perf_open()
> on the guest side over to the host, transparently, via a paravirt driver.
>    

Let us for the purpose of this discussion assume that we are also 
interested in supporting Windows and older Linux.  Paravirt 
optimizations can be added after we have the basic functionality, if 
they prove necessary.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


  reply	other threads:[~2010-02-26 13:33 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-25 15:04 KVM PMU virtualization Jes Sorensen
2010-02-25 15:44 ` Jan Kiszka
2010-02-25 16:26   ` Ingo Molnar
2010-02-26  2:52     ` Zhang, Yanmin
2010-02-26  8:45       ` Ingo Molnar
2010-02-26 11:03     ` Jes Sorensen
2010-02-25 17:34 ` Joerg Roedel
2010-02-26  2:55   ` Zhang, Yanmin
2010-02-26  8:51     ` Joerg Roedel
2010-02-26  9:17       ` Ingo Molnar
2010-02-26 10:42         ` Joerg Roedel
2010-02-26 10:56           ` Ingo Molnar
2010-03-02  7:09         ` Zhang, Yanmin
2010-03-02  9:36           ` Ingo Molnar
2010-03-03  3:32             ` Zhang, Yanmin
2010-03-03  9:27               ` Zhang, Yanmin
2010-03-03 10:13                 ` Peter Zijlstra
2010-03-04  0:52                   ` Zhang, Yanmin
2010-03-03 10:15                 ` Peter Zijlstra
2010-03-04  1:00                   ` Zhang, Yanmin
2010-03-10  9:29                     ` Zhang, Yanmin
2010-03-02  9:57           ` Peter Zijlstra
2010-02-26  8:42   ` Ingo Molnar
2010-02-26  9:46     ` Avi Kivity
2010-02-26 10:39       ` Joerg Roedel
2010-02-26 10:46         ` Ingo Molnar
2010-02-26 10:51           ` Avi Kivity
2010-02-26 11:06           ` Joerg Roedel
2010-02-26 11:18             ` Jes Sorensen
2010-02-26 11:24               ` Ingo Molnar
2010-02-26 11:25                 ` Jes Sorensen
2010-02-26 11:20             ` Ingo Molnar
2010-02-26 10:44       ` Ingo Molnar
2010-02-26 11:16         ` Avi Kivity
2010-02-26 11:26           ` Ingo Molnar
2010-02-26 11:47             ` Avi Kivity
2010-02-26 11:23         ` Jes Sorensen
2010-02-26 11:42           ` Ingo Molnar
2010-02-26 11:51             ` Avi Kivity
2010-02-26 12:07               ` Ingo Molnar
2010-02-26 12:20                 ` Avi Kivity
2010-02-26 12:38                   ` Ingo Molnar
2010-02-26 13:04                     ` Avi Kivity
2010-02-26 13:13                       ` Jes Sorensen
2010-02-26 13:27                         ` Ingo Molnar
2010-02-26 13:33                           ` Avi Kivity [this message]
2010-02-26 14:07                           ` Jes Sorensen
2010-02-26 14:11                             ` Avi Kivity
2010-02-26 13:18                       ` Ingo Molnar
2010-02-26 13:34                         ` Jes Sorensen
2010-02-26 12:56                   ` Jes Sorensen
2010-02-26 13:31                   ` Ingo Molnar
2010-02-26 13:37                     ` Jes Sorensen
2010-02-26 13:55                       ` Avi Kivity
2010-02-26 14:27                         ` Peter Zijlstra
2010-02-26 14:54                           ` Avi Kivity
2010-02-26 15:08                             ` Peter Zijlstra
2010-02-26 15:11                               ` Avi Kivity
2010-02-26 15:18                                 ` Peter Zijlstra
2010-02-26 15:55                                 ` Peter Zijlstra
2010-02-26 16:06                                   ` Avi Kivity
2010-03-01 19:03                                   ` Zachary Amsden
2010-03-01 18:54                       ` Zachary Amsden
2010-02-26 13:40                     ` Avi Kivity
2010-02-26 14:01                       ` Ingo Molnar
2010-02-26 14:22                         ` Avi Kivity
2010-02-26 14:37                           ` Ingo Molnar
2010-02-26 16:03                             ` Avi Kivity
2010-02-26 16:07                               ` Avi Kivity
2010-02-26 13:28               ` Peter Zijlstra
2010-02-26 13:44                 ` Avi Kivity
2010-02-26 13:51                 ` Jes Sorensen
2010-02-26 14:42                   ` Peter Zijlstra
2010-03-08 18:14                     ` Avi Kivity
2010-02-26 12:49             ` Jes Sorensen
2010-02-26 13:06               ` Ingo Molnar
2010-02-26 13:30                 ` Avi Kivity
2010-02-26 13:32                   ` Jes Sorensen
2010-02-26 13:44                   ` Ingo Molnar
2010-02-26 13:53                     ` Avi Kivity
2010-02-26 14:12                       ` Ingo Molnar
2010-02-26 14:53                         ` Avi Kivity
2010-02-26 15:14                           ` Peter Zijlstra
2010-02-28 16:34                             ` Joerg Roedel
2010-02-28 16:31                         ` Joerg Roedel
2010-02-28 16:11                     ` Joerg Roedel
2010-03-01  8:39                       ` Ingo Molnar
2010-03-01  8:58                         ` Joerg Roedel
2010-03-01  9:04                           ` Ingo Molnar
2010-03-01  8:44                       ` Ingo Molnar
2010-03-01 11:11                         ` Joerg Roedel
2010-03-01 17:17                           ` Peter Zijlstra
2010-03-01 18:36                             ` Joerg Roedel
2010-03-08 10:15                             ` Avi Kivity
2010-02-26 14:49                   ` Peter Zijlstra
2010-02-26 14:50                   ` Peter Zijlstra
2010-02-26 13:31                 ` Jes Sorensen
2010-03-01 17:22             ` Zachary Amsden
2010-02-26 11:01   ` Jes Sorensen

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