From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757983AbXGHMAq (ORCPT ); Sun, 8 Jul 2007 08:00:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753704AbXGHLz2 (ORCPT ); Sun, 8 Jul 2007 07:55:28 -0400 Received: from il.qumranet.com ([82.166.9.18]:38415 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752690AbXGHLyr (ORCPT ); Sun, 8 Jul 2007 07:54:47 -0400 From: Avi Kivity To: kvm-devel@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org, Avi Kivity Subject: [PATCH 20/20] KVM: Use CPU_DYING for disabling virtualization Date: Sun, 8 Jul 2007 14:54:49 +0300 Message-Id: <11838956893273-git-send-email-avi@qumranet.com> X-Mailer: git-send-email 1.5.2.2 In-Reply-To: <11838956891287-git-send-email-avi@qumranet.com> References: <11838956891287-git-send-email-avi@qumranet.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Only at the CPU_DYING stage can we be sure that no user process will be scheduled onto the cpu and oops when trying to use virtualization extensions. Signed-off-by: Avi Kivity --- drivers/kvm/kvm_main.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 54cad51..83bb284 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -3004,8 +3004,8 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val, int cpu = (long)v; switch (val) { - case CPU_DOWN_PREPARE: - case CPU_DOWN_PREPARE_FROZEN: + case CPU_DYING: + case CPU_DYING_FROZEN: case CPU_UP_CANCELED: case CPU_UP_CANCELED_FROZEN: printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n", -- 1.5.2.2