From 347b5878d2a358e5bbf25d04f8077f620cc2c6bc Mon Sep 17 00:00:00 2001
From: jbjohnso <jbjohnso@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Thu, 29 Sep 2011 17:58:47 +0000
Subject: [PATCH] Take opportunity of power reset to change virtual clock
 behavior if applicable

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@10677 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 xCAT-server/lib/xcat/plugins/kvm.pm | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/xCAT-server/lib/xcat/plugins/kvm.pm b/xCAT-server/lib/xcat/plugins/kvm.pm
index 9824231c9..eefeeda17 100644
--- a/xCAT-server/lib/xcat/plugins/kvm.pm
+++ b/xCAT-server/lib/xcat/plugins/kvm.pm
@@ -328,8 +328,25 @@ sub reconfigvm {
     my $xml = shift;
     my $domdesc = $parser->parse_string($xml);
     my @bootdevs = $domdesc->findnodes("/domain/os/boot");
-    my @oldbootdevs;
+    my $curroffset = $domdesc->findnodes("/domain/clock")->[0]->getAttribute("offset");
+    my $newoffset;
     my $needfixin=0;
+    if (defined ($confdata->{vm}->{$node}->[0]->{clockoffset})) {
+        #If user requested a specific behavior, give it
+	$newoffset = $confdata->{vm}->{$node}->[0]->{clockoffset};
+    } else {
+        #Otherwise, only do local time for things that look MS
+        if (defined ($confdata->{nodetype}->{$node}->[0]->{os}) and $confdata->{nodetype}->{$node}->[0]->{os} =~ /win.*/) {
+	    $newoffset = 'localtime';
+        } else { #For everyone else, utc is preferred generally
+	    $newoffset = 'utc';
+        }
+    }
+    if ($curroffset ne $newoffset) {
+	$needfixin=1;
+	$domdesc->findnodes("/domain/clock")->[0]->setAttribute("offset",$newoffset);
+    }
+    my @oldbootdevs;
     if (defined $confdata->{vm}->{$node}->[0]->{memory}) {
 	$needfixin=1;
 	$domdesc->findnodes("/domain/memory/text()")->[0]->setData(getUnits($confdata->{vm}->{$node}->[0]->{memory},"M",1024));