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From: Andrey Smetanin <asmetanin@virtuozzo.com>
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Date: Thu, 26 Nov 2015 11:34:54 +0300
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Subject: Re: [Qemu-devel] [PATCH v1 0/7] KVM: Hyper-V SynIC timers
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To: Wanpeng Li <kernellwp@gmail.com>
Cc: kvm <kvm@vger.kernel.org>, Gleb Natapov <gleb@kernel.org>, Haiyang Zhang <haiyangz@microsoft.com>, "qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>, Roman Kagan <rkagan@virtuozzo.com>, "Denis V. Lunev" <den@openvz.org>, Paolo Bonzini <pbonzini@redhat.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, "K. Y. Srinivasan" <kys@microsoft.com>



On 11/26/2015 08:28 AM, Wanpeng Li wrote:
> 2015-11-25 23:20 GMT+08:00 Andrey Smetanin <asmetanin@virtuozzo.com>:
>> Per Hyper-V specification (and as required by Hyper-V-aware guests),
>> SynIC provides 4 per-vCPU timers.  Each timer is programmed via a pair
>> of MSRs, and signals expiration by delivering a special format message
>> to the configured SynIC message slot and triggering the corresponding
>> synthetic interrupt.
>
> Could you post a link for this specification?

Official link:

http://download.microsoft.com/download/A/B/4/AB43A34E-BDD0-4FA6-BDEF-79EEF16E880B/Hypervisor%20Top%20Level%20Functional%20Specification%20v4.0.docx

and there is a pdf variant(my own docx -> pdf conversion):

https://www.dropbox.com/s/ehxictr5wgnedq7/Hypervisor%20Top%20Level%20Functional%20Specification%20v4.0.pdf?dl=0

>
> Regards,
> Wanpeng Li
>