From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH 2/2] kvm: exit to userspace with reason
	KVM_EXIT_VCPU_DEAD
Date: Sun, 27 Nov 2011 12:36:55 +0200
Message-ID: <4ED212C7.1080901@redhat.com>
References: <1322188529-11609-1-git-send-email-kernelfans@gmail.com>
	<1322361735-21428-1-git-send-email-kernelfans@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Cc: aliguori@us.ibm.com, kvm@vger.kernel.org, qemu-devel@nongnu.org,
	linux-kernel@vger.kernel.org, ryanh@us.ibm.com, jan.kiszka@web.de
To: Liu Ping Fan <kernelfans@gmail.com>
Return-path: <qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org>
In-Reply-To: <1322361735-21428-1-git-send-email-kernelfans@gmail.com>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org
Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org
List-Id: kvm.vger.kernel.org

On 11/27/2011 04:42 AM, Liu Ping Fan wrote:
> From: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
>
> The vcpu can be safely released when
> --1.guest tells us that the vcpu is not needed any longer.
> --2.vcpu hits the last instruction _halt_
>
> If both of the conditions are satisfied, kvm exits to userspace
> with the reason vcpu dead. So the user thread can exit safely.
>
>

Seems to be completely unnecessary.  If you want to exit from the vcpu
thread, send it a signal.

-- 
error compiling committee.c: too many arguments to function