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Differential D5958

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

Diff Detail

Repository
rS FreeBSD src repository - subversion
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Lint Passed
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No Test Coverage
Build Status
Buildable 3297
Build 3331: 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.
sepherosa_gmail.com edited edge metadata.Apr 15 2016, 7:15 AM

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)

howard0su_gmail.com added a comment.Apr 15 2016, 7:28 AM
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.

howard0su_gmail.com updated this revision to Diff 15261.Apr 16 2016, 10:22 AM
howard0su_gmail.com edited edge metadata.

Don't remove hyperv from GENERIC. Add boot loader logic only.

sepherosa_gmail.com accepted this revision.Apr 18 2016, 2:06 AM
sepherosa_gmail.com edited edge metadata.
This revision is now accepted and ready to land.Apr 18 2016, 2:06 AM
howard0su_gmail.com added a comment.Apr 21 2016, 2:45 AM

this change didn't touch efi boot code. need more working here.

lwhsu added a reviewer: whu.Aug 18 2020, 8:47 AM

Revision Contents
Changeset List

PathSize
sys/
boot/
i386/
libi386/
43 lines

Diff 15261

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sys/boot/i386/libi386/i386_module.c

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