From: Avi Kivity <avi@redhat.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
Joerg Roedel <joerg.roedel@amd.com>,
kvm@vger.kernel.org, qemu-devel@nongnu.org
Subject: Re: [PATCH 2/3] qemu-x86: Add tsc_freq option to -cpu
Date: Tue, 19 Jul 2011 16:55:53 +0300 [thread overview]
Message-ID: <4E258CE9.4080203@redhat.com> (raw)
In-Reply-To: <4E258C7B.6040005@redhat.com>
On 07/19/2011 04:54 PM, Avi Kivity wrote:
> On 07/19/2011 04:30 PM, Joerg Roedel wrote:
>> >
>> > (although we've been talking about starting a naked qemu and
>> pushing all
>> > of the configuration from the source).
>>
>> Hmm, I planned to do the VMSTATE thing in a follow-on patch-set. The
>> plan is to read the VCPU tsc_freq at guest start time on !tsc-scale
>> hosts and migrate it over so that the destination host can set the
>> tsc-freq if it supports tsc-scaling.
>
> This can be done by a management tool if desired.
>
Although, if we do this unconditionally (that is, also for tsc-scale
hosts) then we get stable tsc even without supplying a tsc frequency
argument... need to think about this.
--
error compiling committee.c: too many arguments to function
WARNING: multiple messages have this Message-ID (diff)
From: Avi Kivity <avi@redhat.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Joerg Roedel <joerg.roedel@amd.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH 2/3] qemu-x86: Add tsc_freq option to -cpu
Date: Tue, 19 Jul 2011 16:55:53 +0300 [thread overview]
Message-ID: <4E258CE9.4080203@redhat.com> (raw)
In-Reply-To: <4E258C7B.6040005@redhat.com>
On 07/19/2011 04:54 PM, Avi Kivity wrote:
> On 07/19/2011 04:30 PM, Joerg Roedel wrote:
>> >
>> > (although we've been talking about starting a naked qemu and
>> pushing all
>> > of the configuration from the source).
>>
>> Hmm, I planned to do the VMSTATE thing in a follow-on patch-set. The
>> plan is to read the VCPU tsc_freq at guest start time on !tsc-scale
>> hosts and migrate it over so that the destination host can set the
>> tsc-freq if it supports tsc-scaling.
>
> This can be done by a management tool if desired.
>
Although, if we do this unconditionally (that is, also for tsc-scale
hosts) then we get stable tsc even without supplying a tsc frequency
argument... need to think about this.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-07-19 13:56 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-07 14:13 [PATCH 0/3][uq/master] Basic TSC-Scaling support v2 Joerg Roedel
2011-07-07 14:13 ` [Qemu-devel] " Joerg Roedel
2011-07-07 14:13 ` [PATCH 1/3] qemu: Add strtosz_suffix_unit function Joerg Roedel
2011-07-07 14:13 ` [Qemu-devel] " Joerg Roedel
2011-07-08 8:00 ` Markus Armbruster
2011-07-08 8:00 ` [Qemu-devel] " Markus Armbruster
2011-07-07 14:13 ` [PATCH 2/3] qemu-x86: Add tsc_freq option to -cpu Joerg Roedel
2011-07-07 14:13 ` [Qemu-devel] " Joerg Roedel
2011-07-19 11:46 ` Marcelo Tosatti
2011-07-19 11:46 ` [Qemu-devel] " Marcelo Tosatti
2011-07-19 12:20 ` Avi Kivity
2011-07-19 12:20 ` [Qemu-devel] " Avi Kivity
2011-07-19 12:56 ` Marcelo Tosatti
2011-07-19 12:56 ` [Qemu-devel] " Marcelo Tosatti
2011-07-19 13:30 ` Joerg Roedel
2011-07-19 13:30 ` [Qemu-devel] " Joerg Roedel
2011-07-19 13:54 ` Avi Kivity
2011-07-19 13:54 ` [Qemu-devel] " Avi Kivity
2011-07-19 13:55 ` Avi Kivity [this message]
2011-07-19 13:55 ` Avi Kivity
2011-07-19 14:14 ` Joerg Roedel
2011-07-19 14:14 ` [Qemu-devel] " Joerg Roedel
2011-07-19 15:55 ` Avi Kivity
2011-07-19 15:55 ` [Qemu-devel] " Avi Kivity
2011-07-07 14:13 ` [PATCH 3/3] qemu-x86: Set tsc_khz in kvm when supported Joerg Roedel
2011-07-07 14:13 ` [Qemu-devel] " Joerg Roedel
2011-07-19 11:48 ` Marcelo Tosatti
2011-07-19 11:48 ` [Qemu-devel] " Marcelo Tosatti
2011-07-19 17:03 ` Jan Kiszka
2011-07-19 17:03 ` [Qemu-devel] " Jan Kiszka
2011-07-19 13:04 ` [PATCH 0/3][uq/master] Basic TSC-Scaling support v2 Marcelo Tosatti
2011-07-19 13:04 ` [Qemu-devel] " Marcelo Tosatti
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