From: "Denis V. Lunev" <den@openvz.org>
To: Wanpeng Li <kernellwp@gmail.com>,
Andrey Smetanin <asmetanin@virtuozzo.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>,
Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
"K. Y. Srinivasan" <kys@microsoft.com>
Subject: Re: [Qemu-devel] [PATCH v1 0/7] KVM: Hyper-V SynIC timers
Date: Tue, 1 Dec 2015 13:28:28 +0300 [thread overview]
Message-ID: <565D764C.103@openvz.org> (raw)
In-Reply-To: <CANRm+Czx8hL28w7spSGNzCMDnCkWXvo5OhPxSrmf4P1DRMU6zA@mail.gmail.com>
On 12/01/2015 01:12 PM, Wanpeng Li wrote:
> 2015-11-26 16:34 GMT+08:00 Andrey Smetanin <asmetanin@virtuozzo.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
> Btw, is there performance data for such feature?
>
> Regards,
> Wanpeng Li
not yet.
This is a requirement for any Hyper-V device emulation
to be activated by Windows. We are going to have
basic infrastructure merged and run performance tests
with all that stuff done.
Den
prev parent reply other threads:[~2015-12-01 10:28 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-25 15:20 [Qemu-devel] [PATCH v1 0/7] KVM: Hyper-V SynIC timers Andrey Smetanin
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 1/7] drivers/hv: Move HV_SYNIC_STIMER_COUNT into Hyper-V UAPI x86 header Andrey Smetanin
2015-11-27 17:27 ` KY Srinivasan
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 2/7] drivers/hv: Move struct hv_message into UAPI Hyper-V " Andrey Smetanin
2015-11-27 9:34 ` Paolo Bonzini
2015-11-27 11:21 ` Andrey Smetanin
2015-11-27 17:34 ` KY Srinivasan
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 3/7] kvm/x86: Rearrange func's declarations inside Hyper-V header Andrey Smetanin
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 4/7] kvm/x86: Added Hyper-V vcpu_to_hv_vcpu()/hv_vcpu_to_vcpu() helpers Andrey Smetanin
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 5/7] kvm/x86: Hyper-V internal helper to read MSR HV_X64_MSR_TIME_REF_COUNT Andrey Smetanin
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 6/7] kvm/x86: Hyper-V SynIC message slot pending clearing at SINT ack Andrey Smetanin
2015-11-25 16:52 ` Paolo Bonzini
2015-11-25 16:55 ` Andrey Smetanin
2015-11-25 17:14 ` Paolo Bonzini
2015-11-26 9:06 ` Andrey Smetanin
2015-11-26 14:43 ` Paolo Bonzini
2015-11-26 15:53 ` Andrey Smetanin
2015-11-26 15:56 ` Paolo Bonzini
2015-11-27 8:16 ` Roman Kagan
2015-11-25 15:20 ` [Qemu-devel] [PATCH v1 7/7] kvm/x86: Hyper-V SynIC timers Andrey Smetanin
2015-11-27 8:12 ` Roman Kagan
2015-11-27 10:49 ` Paolo Bonzini
2015-11-27 11:24 ` Andrey Smetanin
2015-11-30 12:17 ` Roman Kagan
2015-11-26 5:28 ` [Qemu-devel] [PATCH v1 0/7] KVM: " Wanpeng Li
2015-11-26 8:34 ` Andrey Smetanin
2015-11-26 9:03 ` Wanpeng Li
2015-12-01 10:12 ` Wanpeng Li
2015-12-01 10:28 ` Denis V. Lunev [this message]
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