From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756210Ab2KNCAm (ORCPT ); Tue, 13 Nov 2012 21:00:42 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:12432 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756139Ab2KNCAl (ORCPT ); Tue, 13 Nov 2012 21:00:41 -0500 X-Authority-Analysis: v=2.0 cv=RoZH3VaK c=1 sm=0 a=rXTBtCOcEpjy1lPqhTCpEQ==:17 a=mNMOxpOpBa8A:10 a=LmWu7n8Vm5kA:10 a=5SG0PmZfjMsA:10 a=Q9fys5e9bTEA:10 a=meVymXHHAAAA:8 a=c4Q_C9-CEacA:10 a=3ZRmdFY4J84Ixj8lyboA:9 a=PUjeQqilurYA:10 a=rXTBtCOcEpjy1lPqhTCpEQ==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.115.198 Message-ID: <1352858437.18025.47.camel@gandalf.local.home> Subject: Re: [RFC PATCH 0/2] kvm/vmx: Output TSC offset From: Steven Rostedt To: Yoshihiro YUNOMAE Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" , kvm@vger.kernel.org, Joerg Roedel , David Sharp , Marcelo Tosatti , Hidehiro Kawai , Ingo Molnar , Avi Kivity , yrl.pp-manager.tt@hitachi.com, Masami Hiramatsu , Thomas Gleixner Date: Tue, 13 Nov 2012 21:00:37 -0500 In-Reply-To: <20121114013611.5338.15086.stgit@yunodevel> References: <20121114013611.5338.15086.stgit@yunodevel> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.4.3-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2012-11-14 at 10:36 +0900, Yoshihiro YUNOMAE wrote: > To merge the data like previous pattern, we apply this patch set. Then, we can > get TSC offset of the guest as follows: > > $ dmesg | grep kvm > [ 57.717180] kvm: (2687) write TSC offset 18446743360465545001, now clock ## > ^^^^ ^^^^^^^^^^^^^^^^^^^^ | > PID TSC offset | > HOST TSC value --+ > Using printk to export something like this is IMO a nasty hack. Can't we create a /sys or /proc file to export the same thing? -- Steve