Re: [PATCH v1 0/7] KVM: Hyper-V SynIC timers
On 12/01/2015 01:12 PM, Wanpeng Li wrote: 2015-11-26 16:34 GMT+08:00 Andrey Smetanin : On 11/26/2015 08:28 AM, Wanpeng Li wrote: 2015-11-25 23:20 GMT+08:00 Andrey Smetanin : 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v1 0/7] KVM: Hyper-V SynIC timers
2015-11-26 16:34 GMT+08:00 Andrey Smetanin : > > > On 11/26/2015 08:28 AM, Wanpeng Li wrote: >> >> 2015-11-25 23:20 GMT+08:00 Andrey Smetanin : >>> >>> 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v1 0/7] KVM: Hyper-V SynIC timers
2015-11-26 16:34 GMT+08:00 Andrey Smetanin : > > > On 11/26/2015 08:28 AM, Wanpeng Li wrote: >> >> 2015-11-25 23:20 GMT+08:00 Andrey Smetanin : >>> >>> 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 Cool, thanks. Regards, Wanpeng Li -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v1 0/7] KVM: Hyper-V SynIC timers
On 11/26/2015 08:28 AM, Wanpeng Li wrote: 2015-11-25 23:20 GMT+08:00 Andrey Smetanin : 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v1 0/7] KVM: Hyper-V SynIC timers
2015-11-25 23:20 GMT+08:00 Andrey Smetanin : > 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? Regards, Wanpeng Li -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
