xen/events: use a common cpu hotplug hook for event channels

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Today only fifo event channels have a cpu hotplug callback. In order
to prepare for more percpu (de)init work move that callback into
events_base.c and add percpu_init() and percpu_deinit() hooks to
struct evtchn_ops.

This is part of XSA-332.

Cc: stable@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Wei Liu <wl@xen.org>

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This commit is contained in:

Juergen Gross 2020-09-13 14:23:02 +02:00

parent c44b849cee

commit 7beb290caa

3 changed files with 47 additions and 21 deletions

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25

drivers/xen/events/events_base.c

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40

drivers/xen/events/events_fifo.c

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3

drivers/xen/events/events_internal.h

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