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From: | Denis V. Lunev |
Subject: | Re: [Qemu-devel] [PATCH v1 0/7] KVM: Hyper-V SynIC timers |
Date: | Tue, 1 Dec 2015 13:28:28 +0300 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 12/01/2015 01:12 PM, Wanpeng Li wrote:
2015-11-26 16:34 GMT+08:00 Andrey Smetanin <address@hidden>:On 11/26/2015 08:28 AM, Wanpeng Li wrote:2015-11-25 23:20 GMT+08:00 Andrey Smetanin <address@hidden>: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=0Btw, 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
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