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[Xen-devel] HVM guests and localtime

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>
  • Date: Thu, 22 Mar 2007 11:51:18 -0400
  • Delivery-date: Thu, 22 Mar 2007 08:50:17 -0700
  • Importance: normal
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Priority: normal
  • Thread-index: Acdsme5qhrbfcc+HSiCgq4+T7wfPpw==
  • Thread-topic: HVM guests and localtime

I have posted this on xen-users, but have not received any hints to
possible fixes or work-arounds, so I am submitting this to the devel
list as a possible bug. If someone else can confirm this I can put
in a bugzilla ticket.

Dom0: CentOS 4.4 x86_64 + linux-

When I create an HVM guest for the intention of running Windows and
I specify the 'localtime = 1' option, it starts qemu-dm with this
option, but the guest's rtc is still set to utc instead of localtime.

My /etc/localtime is set properly and it isn't symlinked. Do I need
to make sure TZ is set in /etc/environment?

When running Windows in Active Directory with group policy processing
it's important to make sure the guest has it's rtc set properly for
Kerberos authentication, as group policy is processed early in the
boot sequence, but NTP is done late in the boot sequence.

Any help here would be appreciated.

Ross S. W. Walker
Information Systems Manager
Medallion Financial, Corp.
437 Madison Avenue
38th Floor
New York, NY 10022
Tel: (212) 328-2165
Fax: (212) 328-2125
WWW: http://www.medallion.com 

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