From: Jan Kiszka <jan.kiszka@web.de>
To: Anthony Liguori <aliguori@us.ibm.com>
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 17:40:07 +0200 [thread overview]
Message-ID: <4AAE63D7.8050009@web.de> (raw)
In-Reply-To: <4AAE46DF.5070205@us.ibm.com>
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Anthony Liguori wrote:
> 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.
I still do not get why we need clock=vm here...
>
>> 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.
>
...but if this case shall be covered, I'm going to respin my series and
add the config switch. (I was just hoping to get a round it.)
Jan
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next prev parent reply other threads:[~2009-09-14 15:43 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 2/5] win32: Drop dead dyntick timer code 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 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
2009-09-14 15:40 ` Jan Kiszka [this message]
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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