From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755986Ab3ANHi2 (ORCPT ); Mon, 14 Jan 2013 02:38:28 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:30544 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755924Ab3ANHiY (ORCPT ); Mon, 14 Jan 2013 02:38:24 -0500 X-IronPort-AV: E=Sophos;i="4.84,466,1355068800"; d="scan'208";a="6581671" Date: Mon, 14 Jan 2013 15:38:21 +0800 From: Hu Tao To: Marcelo Tosatti Cc: kvm list , qemu-devel , "linux-kernel@vger.kernel.org" , Avi Kivity , "Daniel P. Berrange" , KAMEZAWA Hiroyuki , Jan Kiszka , Gleb Natapov , Blue Swirl , Eric Blake , Andrew Jones , Sasha Levin , Luiz Capitulino Subject: Re: [Qemu-devel] [PATCH v12 0/8] pv event to notify host when the guest is panicked Message-ID: <20130114073821.GE14958@localhost.localdomain> References: <20121220075359.GF7141@localhost.localdomain> <20121225215205.GA6222@amt.cnet> MIME-Version: 1.0 In-Reply-To: <20121225215205.GA6222@amt.cnet> User-Agent: Mutt/1.5.21 (2010-09-15) X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/14 15:37:41, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/14 15:37:42, Serialize complete at 2013/01/14 15:37:42 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Marcelo, Sorry for the late reply. On Tue, Dec 25, 2012 at 07:52:05PM -0200, Marcelo Tosatti wrote: > On Thu, Dec 20, 2012 at 03:53:59PM +0800, Hu Tao wrote: > > Hi, > > > > Any comments? > > As far as i can see, items 2 and 3 of > > https://lkml.org/lkml/2012/11/12/588 > > Have not been addressed. > > https://lkml.org/lkml/2012/11/20/653 contains discussions on those > items. > > 2) Format of the interface for other architectures (you can choose > a different KVM supported architecture and write an example). It was > your choice to choose an I/O port, which is x86 specific. Unfortunately I don't have hardware other than x86 in hand to test it. > > 3) Clear/documented management interface for the feature. Patch #8 adds a document to describe the usage of pv event. But as you are asking again, I must be misunderstanding the meaning of management interface. Can you clarify it? > > Note 3 is for management, not the guest<->host interface. > > > On Wed, Dec 12, 2012 at 02:13:43PM +0800, Hu Tao wrote: > > > This series implements a new interface, kvm pv event, to notify host when > > > some events happen in guest. Right now there is one supported event: guest > > > panic. > > > > > > changes from v11: > > > > > > - add a new patch 'save/load cpu runstate' > > > - fix a bug of null-dereference when no -machine option is supplied > > > - reserve RUN_STATE_GUEST_PANICKED during migration > > > - add doc of enable_pv_event option > > > - disable reboot-on-panic if pv_event is on > > > > > > v11: http://lists.gnu.org/archive/html/qemu-devel/2012-10/msg04361.html > > > > > > Hu Tao (7): > > > save/load cpu runstate > > > update kernel headers > > > add a new runstate: RUN_STATE_GUEST_PANICKED > > > add a new qevent: QEVENT_GUEST_PANICKED > > > introduce a new qom device to deal with panicked event > > > allower the user to disable pv event support > > > pv event: add document to describe the usage > > > > > > Wen Congyang (1): > > > start vm after resetting it > > > > > > block.h | 2 + > > > docs/pv-event.txt | 17 ++++ > > > hw/kvm/Makefile.objs | 2 +- > > > hw/kvm/pv_event.c | 197 +++++++++++++++++++++++++++++++++++++++ > > > hw/pc_piix.c | 11 +++ > > > kvm-stub.c | 4 + > > > kvm.h | 2 + > > > linux-headers/asm-x86/kvm_para.h | 1 + > > > linux-headers/linux/kvm_para.h | 6 ++ > > > migration.c | 7 +- > > > monitor.c | 6 +- > > > monitor.h | 1 + > > > qapi-schema.json | 6 +- > > > qemu-config.c | 4 + > > > qemu-options.hx | 3 +- > > > qmp.c | 5 +- > > > savevm.c | 1 + > > > sysemu.h | 2 + > > > vl.c | 52 ++++++++++- > > > 19 files changed, 312 insertions(+), 17 deletions(-) > > > create mode 100644 docs/pv-event.txt > > > create mode 100644 hw/kvm/pv_event.c > > > > > > -- > > > 1.8.0.1.240.ge8a1f5a > > -- > > 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:44255) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TufTv-0007wp-2m for qemu-devel@nongnu.org; Mon, 14 Jan 2013 03:33:28 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Tueco-0003XO-V2 for qemu-devel@nongnu.org; Mon, 14 Jan 2013 02:38:47 -0500 Received: from [222.73.24.84] (port=30547 helo=song.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tueco-0003WR-FF for qemu-devel@nongnu.org; Mon, 14 Jan 2013 02:38:30 -0500 Date: Mon, 14 Jan 2013 15:38:21 +0800 From: Hu Tao Message-ID: <20130114073821.GE14958@localhost.localdomain> References: <20121220075359.GF7141@localhost.localdomain> <20121225215205.GA6222@amt.cnet> MIME-Version: 1.0 In-Reply-To: <20121225215205.GA6222@amt.cnet> Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Subject: Re: [Qemu-devel] [PATCH v12 0/8] pv event to notify host when the guest is panicked List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Marcelo Tosatti Cc: Andrew Jones , Gleb Natapov , kvm list , Jan Kiszka , qemu-devel , "linux-kernel@vger.kernel.org" , Blue Swirl , Avi Kivity , Luiz Capitulino , KAMEZAWA Hiroyuki , Sasha Levin Hi Marcelo, Sorry for the late reply. On Tue, Dec 25, 2012 at 07:52:05PM -0200, Marcelo Tosatti wrote: > On Thu, Dec 20, 2012 at 03:53:59PM +0800, Hu Tao wrote: > > Hi, > > > > Any comments? > > As far as i can see, items 2 and 3 of > > https://lkml.org/lkml/2012/11/12/588 > > Have not been addressed. > > https://lkml.org/lkml/2012/11/20/653 contains discussions on those > items. > > 2) Format of the interface for other architectures (you can choose > a different KVM supported architecture and write an example). It was > your choice to choose an I/O port, which is x86 specific. Unfortunately I don't have hardware other than x86 in hand to test it. > > 3) Clear/documented management interface for the feature. Patch #8 adds a document to describe the usage of pv event. But as you are asking again, I must be misunderstanding the meaning of management interface. Can you clarify it? > > Note 3 is for management, not the guest<->host interface. > > > On Wed, Dec 12, 2012 at 02:13:43PM +0800, Hu Tao wrote: > > > This series implements a new interface, kvm pv event, to notify host when > > > some events happen in guest. Right now there is one supported event: guest > > > panic. > > > > > > changes from v11: > > > > > > - add a new patch 'save/load cpu runstate' > > > - fix a bug of null-dereference when no -machine option is supplied > > > - reserve RUN_STATE_GUEST_PANICKED during migration > > > - add doc of enable_pv_event option > > > - disable reboot-on-panic if pv_event is on > > > > > > v11: http://lists.gnu.org/archive/html/qemu-devel/2012-10/msg04361.html > > > > > > Hu Tao (7): > > > save/load cpu runstate > > > update kernel headers > > > add a new runstate: RUN_STATE_GUEST_PANICKED > > > add a new qevent: QEVENT_GUEST_PANICKED > > > introduce a new qom device to deal with panicked event > > > allower the user to disable pv event support > > > pv event: add document to describe the usage > > > > > > Wen Congyang (1): > > > start vm after resetting it > > > > > > block.h | 2 + > > > docs/pv-event.txt | 17 ++++ > > > hw/kvm/Makefile.objs | 2 +- > > > hw/kvm/pv_event.c | 197 +++++++++++++++++++++++++++++++++++++++ > > > hw/pc_piix.c | 11 +++ > > > kvm-stub.c | 4 + > > > kvm.h | 2 + > > > linux-headers/asm-x86/kvm_para.h | 1 + > > > linux-headers/linux/kvm_para.h | 6 ++ > > > migration.c | 7 +- > > > monitor.c | 6 +- > > > monitor.h | 1 + > > > qapi-schema.json | 6 +- > > > qemu-config.c | 4 + > > > qemu-options.hx | 3 +- > > > qmp.c | 5 +- > > > savevm.c | 1 + > > > sysemu.h | 2 + > > > vl.c | 52 ++++++++++- > > > 19 files changed, 312 insertions(+), 17 deletions(-) > > > create mode 100644 docs/pv-event.txt > > > create mode 100644 hw/kvm/pv_event.c > > > > > > -- > > > 1.8.0.1.240.ge8a1f5a > > -- > > 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