[PATCH 0/4] fixes CVE-2020-27673

Juergen Gross (4): xen/events: add a new "late EOI" evtchn framework xen/events: switch user event channels to lateeoi model xen/events: use a common cpu hotplug hook for event channels xen/events: defer eoi in case of excessive number of events

.../admin-guide/kernel-parameters.txt | 8 + drivers/xen/events/events_2l.c | 7 +- drivers/xen/events/events_base.c | 363 +++++++++++++++++- drivers/xen/events/events_fifo.c | 70 ++-- drivers/xen/events/events_internal.h | 17 +- drivers/xen/evtchn.c | 7 +- include/xen/events.h | 21 + 7 files changed, 420 insertions(+), 73 deletions(-)