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[Xen-devel] [PATCH 0/2] MCA support with page offlining

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: SUZUKI Kazuhiro <kaz@xxxxxxxxxxxxxx>
  • Date: Mon, 15 Dec 2008 15:33:21 +0900 (JST)
  • Delivery-date: Sun, 14 Dec 2008 22:34:06 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi all, 

I had posted about MCA support for Intel64 before. It had only a
function to log the MCA error data received from hypervisor.


I attach patches that support not only error logging but also Page
Offlining function. The page where an MCA occurs will offline and not
reuse. A new flag 'PGC_reserved' was added in page count_info to mark
the impacted page.

I know that it is better to implement the page offlining for general
purpose, but I implemented for MCA specialized in this first step.

And I also implement the MCA handler of Dom0 which support to shutdown
the remote domain where a MCA occurred. If the MCA occurred on a DomU,
Dom0 notifies it to the DomU. When the notify is failed, Dom0 calls
SCHEDOP_remote_shutdown hypercall.

[1/2] xen part: mca-support-with-page-offlining-xen.patch
[2/2] linux/x86_64 part: mca-support-with-page-offlining-linux.patch

Signed-off-by: Kazuhiro Suzuki <kaz@xxxxxxxxxxxxxx>


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