linux_dsm_epyc7002/drivers/xen
Juergen Gross 064b57a8da xen/events: reset active flag for lateeoi events later
commit 3de218ff39b9e3f0d453fe3154f12a174de44b25 upstream.

In order to avoid a race condition for user events when changing
cpu affinity reset the active flag only when EOI-ing the event.

This is working fine as all user events are lateeoi events. Note that
lateeoi_ack_mask_dynirq() is not modified as there is no explicit call
to xen_irq_lateeoi() expected later.

Cc: stable@vger.kernel.org
Reported-by: Julien Grall <julien@xen.org>
Fixes: b6622798bc50b62 ("xen/events: avoid handling the same event on two cpus at the same time")
Tested-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrvsky@oracle.com>
Link: https://lore.kernel.org/r/20210623130913.9405-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-11 12:53:31 +02:00
..
events xen/events: reset active flag for lateeoi events later 2021-07-11 12:53:31 +02:00
xen-pciback xen-pciback: reconfigure also from backend watch handler 2021-05-26 12:06:54 +02:00
xenbus arm/xen: Don't probe xenbus as part of an early initcall 2021-02-17 11:02:21 +01:00
xenfs
acpi.c
arm-device.c
balloon.c xen/balloon: try to merge system ram resources 2020-10-16 11:11:18 -07:00
biomerge.c
cpu_hotplug.c xen/cpuhotplug: Fix initial CPU offlining for PV(H) guests 2020-05-21 13:01:45 -05:00
dbgp.c
efi.c
evtchn.c xen/events: switch user event channels to lateeoi model 2020-10-20 10:22:11 +02:00
features.c
gntalloc.c
gntdev-common.h
gntdev-dmabuf.c xen: gntdev: fix common struct sg_table related issues 2020-09-10 08:18:35 +02:00
gntdev-dmabuf.h
gntdev.c xen/gntdev: fix gntdev_mmap() error exit path 2021-05-19 10:13:16 +02:00
grant-table.c xen: don't use page->lru for ZONE_DEVICE memory 2020-12-09 10:31:41 +01:00
Kconfig xen/x86: make XEN_BALLOON_MEMORY_HOTPLUG_LIMIT depend on MEMORY_HOTPLUG 2021-03-30 14:32:04 +02:00
Makefile xen: branch for v5.9-rc4 2020-09-06 09:59:27 -07:00
manage.c
mcelog.c
mem-reservation.c
pci.c
pcpu.c
platform-pci.c xen: Fix event channel callback via INTX/GSI 2021-01-27 11:55:00 +01:00
privcmd-buf.c
privcmd.c xen/privcmd: allow fetching resource sizes 2021-01-19 18:27:21 +01:00
privcmd.h
pvcalls-back.c xen/pvcallsback: use lateeoi irq binding 2020-10-20 10:22:07 +02:00
pvcalls-front.c xen: remove redundant initialization of variable ret 2020-10-04 18:41:33 -05:00
pvcalls-front.h
swiotlb-xen.c swiotlb: remove the tbl_dma_addr argument to swiotlb_tbl_map_single 2020-11-02 10:10:39 -05:00
sys-hypervisor.c
time.c
unpopulated-alloc.c xen/unpopulated-alloc: fix error return code in fill_list() 2021-05-19 10:13:12 +02:00
xen-acpi-cpuhotplug.c
xen-acpi-memhotplug.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xen-acpi-pad.c
xen-acpi-processor.c
xen-balloon.c
xen-front-pgdir-shbuf.c
xen-scsiback.c xen-scsiback: don't "handle" error by BUG() 2021-02-23 15:53:24 +01:00
xen-stub.c
xlate_mmu.c xen: add helpers to allocate unpopulated memory 2020-09-04 10:00:01 +02:00