From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Zhai, Edwin" <edwin.zhai@intel.com>
Subject: [PATCH][HVM] fix VNIF restore failure on HVM guest with
	heavy workload
Date: Wed, 11 Apr 2007 00:47:38 +0800
Message-ID: <20070410164738.GA24587@edwin-gen.ccr>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <xen-devel-bounces@lists.xensource.com>
Content-Disposition: inline
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>, Keir Fraser <Keir.Fraser@cl.cam.ac.uk>, Tim Deegan <Tim.Deegan@xensource.com>
Cc: xen-devel@lists.xensource.com, edwin.zhai@intel.com
List-Id: xen-devel@lists.xenproject.org

[PATCH][HVM] fix VNIF restore failure on HVM guest with heavy workload

Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>

VNIF has many intrs when save/restore with net workload, so need keep handler from intrs

diff -r 2fab1ec4dc74 linux-2.6-xen-sparse/drivers/xen/core/reboot.c
--- a/linux-2.6-xen-sparse/drivers/xen/core/reboot.c	Mon Apr 09 16:35:01 2007 +0800
+++ b/linux-2.6-xen-sparse/drivers/xen/core/reboot.c	Tue Apr 10 16:44:52 2007 +0800
@@ -44,12 +44,14 @@ int __xen_suspend(int fast_suspend)
 int __xen_suspend(int fast_suspend)
 {
 	xenbus_suspend();
+	local_irq_disable();
 	platform_pci_suspend();
 
 	/* pvdrv sleep in this hyper-call when save */
 	HYPERVISOR_shutdown(SHUTDOWN_suspend);
 
 	platform_pci_resume();
+	local_irq_enable();
 	xenbus_resume();
 	printk("PV stuff on HVM resume successfully!\n");