[Xen-devel] timer_mode default change?!?

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

Huh?  "Most guests" means Windows?  AFAIK, *no* Linux hvm
guest prefers timer_mode==1.

> -----Original Message-----
> From: Xen patchbot-unstable
> [mailto:patchbot-unstable@xxxxxxxxxxxxxxxxxxx]
> Sent: Tuesday, September 30, 2008 9:00 AM
> To: xen-changelog@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-changelog] [xen-unstable] hvm: Default timer_mode=1 (do
> not delay virtual time for missed
> 
> 
> # HG changeset patch
> # User Keir Fraser <keir.fraser@xxxxxxxxxx>
> # Date 1222445376 -3600
> # Node ID 1420a6649cfa2963f1d71956756c922a3b671ae6
> # Parent  840c0c3c185ae2b0baeceba7caf2f420a44f116d
> hvm: Default timer_mode=1 (do not delay virtual time for missed
> ticks). Most guests prefer this mode compared with screwing with
> progress of virtual time.
> 
> Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
> ---
>  tools/python/xen/xend/XendConfig.py |    2 +-
>  tools/python/xen/xm/create.py       |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff -r 840c0c3c185a -r 1420a6649cfa 
> tools/python/xen/xend/XendConfig.py
> --- a/tools/python/xen/xend/XendConfig.py     Fri Sep 26 
> 15:33:51 2008 +0100
> +++ b/tools/python/xen/xend/XendConfig.py     Fri Sep 26 
> 17:09:36 2008 +0100
> @@ -441,7 +441,7 @@ class XendConfig(dict):
>  
>          if self.is_hvm():
>              if 'timer_mode' not in self['platform']:
> -                self['platform']['timer_mode'] = 0
> +                self['platform']['timer_mode'] = 1
>              if 'rtc_timeoffset' not in self['platform']:
>                  self['platform']['rtc_timeoffset'] = 0
>              if 'hpet' not in self['platform']:
> diff -r 840c0c3c185a -r 1420a6649cfa tools/python/xen/xm/create.py
> --- a/tools/python/xen/xm/create.py   Fri Sep 26 15:33:51 2008 +0100
> +++ b/tools/python/xen/xm/create.py   Fri Sep 26 17:09:36 2008 +0100
> @@ -214,7 +214,7 @@ gopts.var('hpet', val='HPET',
>            use="Enable virtual high-precision event timer.")
>  
>  gopts.var('timer_mode', val='TIMER_MODE',
> -          fn=set_int, default=0,
> +          fn=set_int, default=1,
>            use="""Timer mode (0=delay virtual time when ticks 
> are missed;
>            1=virtual time is always wallclock time.""")
>  
> 
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