diff options
| author | Juergen Gross <jgross@suse.com> | 2021-02-19 16:40:28 +0100 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2021-02-23 10:07:11 -0600 |
| commit | 06f45fe96fcd81531b0bcb2a6115da563ae6dbd6 (patch) | |
| tree | e0004c9548d4612288b71f5fd541eab54fc63ead /include/xen/xenbus.h | |
| parent | 7c70f3a7488d2fa62d32849d138bf2b8420fe788 (diff) | |
xen/events: add per-xenbus device event statistics and settings
Add syfs nodes for each xenbus device showing event statistics (number
of events and spurious events, number of associated event channels)
and for setting a spurious event threshold in case a frontend is
sending too many events without being rogue on purpose.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210219154030.10892-7-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'include/xen/xenbus.h')
| -rw-r--r-- | include/xen/xenbus.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h index bf3cfc7c35d0..0b1386073d49 100644 --- a/include/xen/xenbus.h +++ b/include/xen/xenbus.h @@ -88,6 +88,13 @@ struct xenbus_device { struct completion down; struct work_struct work; struct semaphore reclaim_sem; + + /* Event channel based statistics and settings. */ + atomic_t event_channels; + atomic_t events; + atomic_t spurious_events; + atomic_t jiffies_eoi_delayed; + unsigned int spurious_threshold; }; static inline struct xenbus_device *to_xenbus_device(struct device *dev) |