Juergen Gross 25da4618af xen/events: don't unmask an event channel when an eoi is pending ... An event channel should be kept masked when an eoi is pending for it. When being migrated to another cpu it might be unmasked, though. In order to avoid this keep three different flags for each event channel to be able to distinguish "normal" masking/unmasking from eoi related masking/unmasking and temporary masking. The event channel should only be able to generate an interrupt if all flags are cleared. Cc: stable@vger.kernel.org Fixes: 54c9de8989 ("xen/events: add a new "late EOI" evtchn framework") Reported-by: Julien Grall <julien@xen.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Julien Grall <jgrall@amazon.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Tested-by: Ross Lagerwall <ross.lagerwall@citrix.com> Link: https://lore.kernel.org/r/20210306161833.4552-3-jgross@suse.com [boris -- corrected Fixed tag format] Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>		2021-03-10 16:37:29 -06:00
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events_2l.c	xen/events: don't unmask an event channel when an eoi is pending	2021-03-10 16:37:29 -06:00
events_base.c	xen/events: don't unmask an event channel when an eoi is pending	2021-03-10 16:37:29 -06:00
events_fifo.c	xen/events: don't unmask an event channel when an eoi is pending	2021-03-10 16:37:29 -06:00
events_internal.h	xen/events: don't unmask an event channel when an eoi is pending	2021-03-10 16:37:29 -06:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00