Page MenuHomeFreeBSD
Differential D31690

xen/intr: arm64: implement Xen event balancing
Needs ReviewPublic
Actions

Authored by ehem_freebsd_m5p.com on Aug 26 2021, 4:29 AM.
Tags
None
Referenced Files
F82024495: D31690.id94220.diff
Wed, Apr 24, 5:21 PM
Unknown Object (File)
Mon, Apr 22, 10:32 PM
Unknown Object (File)
Mon, Apr 22, 7:22 PM
Unknown Object (File)
Sat, Apr 6, 9:14 PM
Unknown Object (File)
Dec 27 2023, 8:21 AM
Unknown Object (File)
Dec 20 2023, 8:03 AM
Unknown Object (File)
Dec 10 2023, 9:54 AM
Unknown Object (File)
Sep 6 2023, 7:10 AM
View All 24 Files
Subscribers
andrew
emaste
imp

Details

Reviewers
royger
mhorne
julien_xen.org
manu
Summary

This distributes the event channels among processors instead of placing
all of them on vCPU#0. Normal interrupt sources are balanced once, at
the end of the boot process. Since new event channels can be created
any time, they need to be dynamically balanced.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Passed
Unit
No Test Coverage
Build Status
Buildable 42835
Build 39723: arc lint + arc unit

Event Timeline

ehem_freebsd_m5p.com created this revision.Aug 26 2021, 4:29 AM
Herald added a reviewer: manu. · View Herald TranscriptAug 26 2021, 4:29 AM
Herald added subscribers: emaste, andrew, imp. · View Herald Transcript
ehem_freebsd_m5p.com requested review of this revision.Aug 26 2021, 4:29 AM
Harbormaster completed remote builds in B41224: Diff 94220.Aug 26 2021, 4:29 AM
ehem_freebsd_m5p.com added a parent revision: D31063: xen/intr: move isrc allocation to architecture (aarch64 version).Aug 27 2021, 10:26 PM
ehem_freebsd_m5p.com added a comment.Aug 27 2021, 10:30 PM

This is a child of D31063, but not a parent of D30950. The reason being D31063 introduces the function modified in D31690. While Xen/ARM64 VMs may have low performance without D31690, they will function, thus it is reasonable to enable Xen/ARM64 without this commit.

ehem_freebsd_m5p.com mentioned this in D30950: xen/arm64: enable arm64 Xen configuration.Sep 4 2021, 3:46 AM
ehem_freebsd_m5p.com added a child revision: D31956: RELNOTES: add entry for Xen/ARM64.Sep 14 2021, 4:30 AM
ehem_freebsd_m5p.com mentioned this in D30935: xen/intr: move interrupt balancing into xen_intr_alloc_isrc().Nov 16 2021, 11:09 PM
ehem_freebsd_m5p.com updated this revision to Diff 98629.Nov 17 2021, 4:38 AM

Updating given updates elsewhere. This is the set isrc->xi_cpu approach.

Harbormaster completed remote builds in B42835: Diff 98629.Nov 17 2021, 4:38 AM

Revision Contents
Changeset List

PathSize
sys/
arm64/
xen/
15 lines

Diff 98629

View Options

sys/arm64/xen/xen_arch_intr.c

Loading...