[PATCH 0/7] xen/events: bug fixes and some diagnostic aids

Juergen Gross
2021-02-06T10:51:33Z

The first three patches are fixes for XSA-332. The avoid WARN splats
and a performance issue with interdomain events.

Patches 4 and 5 are some additions to event handling in order to add
some per pv-device statistics to sysfs and the ability to have a per
backend device spurious event delay control.

Patches 6 and 7 are minor fixes I had lying around.

Juergen Gross (7):
xen/events: reset affinity of 2-level event initially
xen/events: don't unmask an event channel when an eoi is pending
xen/events: fix lateeoi irq acknowledgement
xen/events: link interdomain events to associated xenbus device
xen/events: add per-xenbus device event statistics and settings
xen/evtch: use smp barriers for user event ring
xen/evtchn: read producer index only once

drivers/block/xen-blkback/xenbus.c | 2 +-
drivers/net/xen-netback/interface.c | 16 ++--
drivers/xen/events/events_2l.c | 20 +++++
drivers/xen/events/events_base.c | 133 ++++++++++++++++++++++------
drivers/xen/evtchn.c | 6 +-
drivers/xen/pvcalls-back.c | 4 +-
drivers/xen/xen-pciback/xenbus.c | 2 +-
drivers/xen/xen-scsiback.c | 2 +-
drivers/xen/xenbus/xenbus_probe.c | 66 ++++++++++++++
include/xen/events.h | 7 +-
include/xen/xenbus.h | 7 ++
11 files changed, 217 insertions(+), 48 deletions(-)

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2.26.2