On Fri, Mar 04, 2011 at 12:46:20AM +0800, Frank Pan wrote:
> I use pvops kernel for HVM domU, and I find that shutdown watcher is
Which one? 2.6.32? stock 2.6.37? devel 2.6.38?
> not enabled at all when I compile platform-pci module inside kernel.
> The code related calls xen_setup_shutdown_event after xenbus_probe,
> that makes setup_shutdown_watcher never called.
>
> The following patch fixes this by changing the order of xenbus_probe
> and xen_setup_shutdown, which makes my PV-on-HVM domU responses well
> for the "control/shutdown" entry.
>
> ---
> linux-2.6-xen/drivers/xen/platform-pci.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/linux-2.6-xen/drivers/xen/platform-pci.c
> b/linux-2.6-xen/drivers/xen/platform-pci.c
> index c01b5dd..f141cfe 100644
> --- a/linux-2.6-xen/drivers/xen/platform-pci.c
> +++ b/linux-2.6-xen/drivers/xen/platform-pci.c
> @@ -162,10 +162,10 @@ static int __devinit platform_pci_init(struct
> pci_dev *pdev,
> ret = gnttab_init();
> if (ret)
> goto out;
> - xenbus_probe(NULL);
> ret = xen_setup_shutdown_event();
> if (ret)
> goto out;
> + xenbus_probe(NULL);
> return 0;
>
> out:
> --
> 1.7.0.4
>
> --
> Frank Pan
>
> Computer Science and Technology
> Tsinghua University
> From 8d2402bd48ccc9eb5afe2aaa407d61ff715cb24c Mon Sep 17 00:00:00 2001
> From: Frank Pan <frankpzh@xxxxxxxxx>
> Date: Thu, 3 Mar 2011 16:36:17 +0000
> Subject: [PATCH] Fix a bug that shutdown watcher is disabled on pvops
>
> ---
> linux-2.6-xen/drivers/xen/platform-pci.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/linux-2.6-xen/drivers/xen/platform-pci.c
> b/linux-2.6-xen/drivers/xen/platform-pci.c
> index c01b5dd..f141cfe 100644
> --- a/linux-2.6-xen/drivers/xen/platform-pci.c
> +++ b/linux-2.6-xen/drivers/xen/platform-pci.c
> @@ -162,10 +162,10 @@ static int __devinit platform_pci_init(struct pci_dev
> *pdev,
> ret = gnttab_init();
> if (ret)
> goto out;
> - xenbus_probe(NULL);
> ret = xen_setup_shutdown_event();
> if (ret)
> goto out;
> + xenbus_probe(NULL);
> return 0;
>
> out:
> --
> 1.7.0.4
>
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