hyperv: load hyperv driver from boot loader automatically.
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Authored by howard0su_gmail.com on Apr 15 2016, 6:52 AM.

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honzhan_microsoft.com
decui_microsoft.com
sepherosa_gmail.com
whu

Summary

Check CPUID to detect hyper-V then load hyperv.ko from boot loader

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Repository

rS FreeBSD src repository - subversion

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Lint Passed

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No Test Coverage

Build Status

Buildable 3281
Build 3315: arc lint + arc unit

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howard0su_gmail.com updated this revision to Diff 15214.Apr 15 2016, 6:52 AM

howard0su_gmail.com retitled this revision from to hyperv: load hyperv driver from boot loader automatically..

howard0su_gmail.com updated this object.

howard0su_gmail.com edited the test plan for this revision. (Show Details)

Herald added subscribers: Contributor Reviews (src), imp. · View Herald TranscriptApr 15 2016, 6:52 AM

howard0su_gmail.com added a parent revision: D5956: hyperv: add meta .ko to load all hyperv related .ko.Apr 15 2016, 7:08 AM

howard0su_gmail.com added reviewers: decui_microsoft.com, honzhan_microsoft.com, sepherosa_gmail.com.

Can we leave the device hyperv in GENERIC? Since atomic ops will have significant cost if hyperv drivers are loaded as modules. We can remove the device hyperv from GENERIC after atomic ops only have inlined version on amd64 (like other archs)

In D5958#127009, @sepherosa_gmail.com wrote:

Can we leave the device hyperv in GENERIC? Since atomic ops will have significant cost if hyperv drivers are loaded as modules. We can remove the device hyperv from GENERIC after atomic ops only have inlined version on amd64 (like other archs)

I would like to measure that via performance testing.