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| author | Juergen Gross <jgross@suse.com> | 2020-09-13 14:23:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-05 11:43:11 +0100 |
| commit | 25c23f03345764ec290566f502c2bce84c2a458f (patch) | |
| tree | 012f9408a4acffd961ed8beb58e2c912c29d3657 /drivers/xen/events/events_internal.h | |
| parent | b7d6a66e21722df4ad2ea2eba1e3bc7b62911dbc (diff) | |
| download | linux-rt-25c23f03345764ec290566f502c2bce84c2a458f.tar.gz | |
xen/events: use a common cpu hotplug hook for event channels
commit 7beb290caa2adb0a399e735a1e175db9aae0523a upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/xen/events/events_internal.h')
| -rw-r--r-- | drivers/xen/events/events_internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/xen/events/events_internal.h b/drivers/xen/events/events_internal.h index 82938cff6c7a..fef1d645261e 100644 --- a/drivers/xen/events/events_internal.h +++ b/drivers/xen/events/events_internal.h @@ -69,6 +69,9 @@ struct evtchn_ops { void (*handle_events)(unsigned cpu); void (*resume)(void); + + int (*percpu_init)(unsigned int cpu); + int (*percpu_deinit)(unsigned int cpu); }; extern const struct evtchn_ops *evtchn_ops; |