From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pekka Enberg Subject: Re: kvm tools: clock sources for hrtimer Date: Wed, 09 Nov 2011 21:13:54 +0200 Message-ID: <1320866034.1428.94.camel@jaguar> References: <737697ff491a47a25b620f0fca60bb07@radon2.swed.at> <1320850191.31056.64.camel@lappy> <294867a39da5124eee9a2c167f0f9c87@radon2.swed.at> <1320853793.31056.75.camel@lappy> <20111109160006.GD608@moon> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Cc: Cyrill Gorcunov , Sasha Levin , kvm@vger.kernel.org, mingo@elte.hu, asias.hejun@gmail.com To: Richard Weinberger Return-path: Received: from filtteri5.pp.htv.fi ([213.243.153.188]:42225 "EHLO filtteri5.pp.htv.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751217Ab1KITN4 (ORCPT ); Wed, 9 Nov 2011 14:13:56 -0500 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On Wed, 2011-11-09 at 20:56 +0200, Richard Weinberger wrote: > On Wed, 9 Nov 2011 20:00:06 +0400, Cyrill Gorcunov > wrote: > > On Wed, Nov 09, 2011 at 05:49:53PM +0200, Sasha Levin wrote: > >> On Wed, 2011-11-09 at 17:42 +0200, Richard Weinberger wrote: > >> > On Wed, 09 Nov 2011 16:49:51 +0200, Sasha Levin > >> > wrote: > >> > > We'll do kvm_clock as well if you compile it in the kernel. > >> > > >> > CONFIG_HIGH_RES_TIMERS is on both host and guest kernels enabled. > >> > BTW: Why adds the kvm tool "notsc" to the guest's kernel command line? > >> > >> You'll need CONFIG_KVM_CLOCK. > > Ups, thanks for the hint! > > > > > In short -- you could drop this from command line and tell us how it goes ;) > > So far it works fine. :-) Yup, "notsc" was used in the early days to avoid APIC emulation. Anyone care to send a patch to drop it from master? Pekka