linux_dsm_epyc7002/drivers/xen
Juergen Gross bb815894ba xen/events: reset affinity of 2-level event when tearing it down
commit 9e77d96b8e2724ed00380189f7b0ded61113b39f upstream.

When creating a new event channel with 2-level events the affinity
needs to be reset initially in order to avoid using an old affinity
from earlier usage of the event channel port. So when tearing an event
channel down reset all affinity bits.

The same applies to the affinity when onlining a vcpu: all old
affinity settings for this vcpu must be reset. As percpu events get
initialized before the percpu event channel hook is called,
resetting of the affinities happens after offlining a vcpu (this is
working, as initial percpu memory is zeroed out).

Cc: stable@vger.kernel.org
Reported-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Link: https://lore.kernel.org/r/20210306161833.4552-2-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:06:28 +01:00
..
events xen/events: reset affinity of 2-level event when tearing it down 2021-03-17 17:06:28 +01:00
xen-pciback xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path() 2020-12-30 11:54:26 +01:00
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 xen: Use evtchn_type_t as a type for event channels 2020-04-07 12:12:54 +02:00
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: correct error checking in gntdev_map_grant_pages() 2021-02-23 15:53:24 +01:00
grant-table.c xen: don't use page->lru for ZONE_DEVICE memory 2020-12-09 10:31:41 +01:00
Kconfig xen: branch for v5.9-rc4 2020-09-06 09:59:27 -07:00
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 READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses 2020-04-16 12:28:07 +01:00
unpopulated-alloc.c xen: don't use page->lru for ZONE_DEVICE memory 2020-12-09 10:31:41 +01:00
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/balloon: Support xend-based toolstack take two 2020-01-22 08:58:16 -06:00
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