xen/intr: arm64: implement xen_arch_intr_intrcnt_init()
AbandonedPublic
Actions

Authored by ehem_freebsd_m5p.com on Jul 5 2021, 6:41 PM.

Details

Reviewers

royger
mhorne
julien_xen.org
manu

Summary

Unfortunately this really looks like THE interrupt needs a full set of
IPI interrupt counters. For the moment, simply use a static throw-away
variable.

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Passed

Unit

No Test Coverage

Build Status

Buildable 40322
Build 37211: arc lint + arc unit

Event Timeline

ehem_freebsd_m5p.com created this revision.Jul 5 2021, 6:41 PM

Herald added a reviewer: manu. · View Herald TranscriptJul 5 2021, 6:41 PM

Herald added subscribers: emaste, andrew, imp. · View Herald Transcript

ehem_freebsd_m5p.com requested review of this revision.Jul 5 2021, 6:41 PM

Harbormaster completed remote builds in B40322: Diff 91820.Jul 5 2021, 6:41 PM

ehem_freebsd_m5p.com added a child revision: D30950: xen/arm64: enable arm64 Xen configuration.Jul 5 2021, 6:45 PM

ehem_freebsd_m5p.com added a parent revision: D31062: xen/intr: implement aarch64 variant of xen_arch_intr.c.

ehem_freebsd_m5p.com added a parent revision: D30937: xen/intr: add architecture interrupt counter initializer.Jul 5 2021, 6:50 PM

I'm really unsure what this should look like. The interrupt really should have per-core counters since it is expected to occur on all cores which process Xen events. Yet the intrng code only has a single per-interrupt counter, thus appearing to implicitly assume any given interrupt will only occur on one core which the interrupt has been assigned to.

ehem_freebsd_m5p.com mentioned this in D30937: xen/intr: add architecture interrupt counter initializer.Jul 5 2021, 10:37 PM