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From: Anthony Liguori <aliguori@us.ibm.com>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Blue Swirl <blauwirbel@gmail.com>,
	Glauber Costa <glommer@redhat.com>,
	dlaor@redhat.com, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: [Qemu-devel] Re: [PATCH 0/5] Refactor and enhance RTC configuration
Date: Mon, 14 Sep 2009 08:36:31 -0500	[thread overview]
Message-ID: <4AAE46DF.5070205@us.ibm.com> (raw)
In-Reply-To: <4AAD119F.2000107@web.de>

Jan Kiszka wrote:
> Dor Laor wrote:
>   
>> I'm in favor of sticking to clock=vm as a default.
>> Most chances that the guest will have internet connect and the host (ala
>> rom hypervisor) won't have.
>>     

Default behaviors only really matter for unmanaged environments.  An 
isolated hypervisor in a rom is most certainly a managed environment.  
As long as there is the ability to do clock=vm, setting clock=host by 
default should be fine.

> Except for Jamie's case of extending some license runtime, I really see
> no real use for RTC based on vm_clock anymore. There is some reason why
> other RTCs are already based on the host clock.
>   

In general, behaving like real hardware by default and supporting odd 
use-cases with additional options seems like a good policy to me.

> Jan
>   


-- 
Regards,

Anthony Liguori

  reply	other threads:[~2009-09-14 13:36 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-09 15:11 [Qemu-devel] [PATCH 0/5] Refactor and enhance RTC configuration Jan Kiszka
2009-09-09 15:11 ` [Qemu-devel] [PATCH 3/5] Introduce QEMU_CLOCK_HOST Jan Kiszka
2009-09-09 15:11 ` [Qemu-devel] [PATCH 2/5] win32: Drop dead dyntick timer code Jan Kiszka
2009-09-09 15:11 ` [Qemu-devel] [PATCH 4/5] Refactor RTC command line switches Jan Kiszka
2009-09-09 15:11 ` [Qemu-devel] [PATCH 1/5] Rename QEMU_TIMER_* to QEMU_CLOCK_* Jan Kiszka
2009-09-09 15:11 ` [Qemu-devel] [PATCH 5/5] Enable host-clock-based RTC Jan Kiszka
2009-09-09 15:40 ` [Qemu-devel] Re: [PATCH 0/5] Refactor and enhance RTC configuration Anthony Liguori
2009-09-09 16:24   ` Jan Kiszka
2009-09-09 16:41     ` Jan Kiszka
2009-09-09 18:03       ` Markus Armbruster
2009-09-09 17:59     ` Anthony Liguori
2009-09-09 20:00       ` Jan Kiszka
2009-09-09 20:18         ` Anthony Liguori
2009-09-09 22:23       ` Jamie Lokier
2009-09-11  8:54         ` Jan Kiszka
2009-09-13 15:08           ` Dor Laor
2009-09-13 15:37             ` Jan Kiszka
2009-09-14 13:36               ` Anthony Liguori [this message]
2009-09-14 15:40                 ` Jan Kiszka
2009-09-09 17:59     ` Markus Armbruster
2009-09-10 10:41   ` Gerd Hoffmann
2009-09-09 17:33 ` Blue Swirl
2009-09-09 19:13   ` Jan Kiszka

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