[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 03/11] evtchn: print ABI specific state with the 'e' debug key
From: David Vrabel <david.vrabel@xxxxxxxxxx> In the output of the 'e' debug key, print some ABI specific state in addition to the (p)ending and (m)asked bits. For the 2-level ABI, print the state of that event's selector bit. e.g., (XEN) port [p/m/s] (XEN) 1 [0/0/1]: s=3 n=0 x=0 d=0 p=74 (XEN) 2 [0/0/1]: s=3 n=0 x=0 d=0 p=75 Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx> --- xen/common/event_2l.c | 10 ++++++++++ xen/common/event_channel.c | 8 +++++--- xen/include/xen/event.h | 7 +++++++ 3 files changed, 22 insertions(+), 3 deletions(-) diff --git a/xen/common/event_2l.c b/xen/common/event_2l.c index 18c0c6e..b7b152c 100644 --- a/xen/common/event_2l.c +++ b/xen/common/event_2l.c @@ -74,6 +74,15 @@ static bool_t evtchn_2l_is_masked(struct domain *d, return test_bit(evtchn->port, &shared_info(d, evtchn_mask)); } +static void evtchn_2l_print_state(struct domain *d, + const struct evtchn *evtchn) +{ + struct vcpu *v = d->vcpu[evtchn->notify_vcpu_id]; + + printk("%d", !!test_bit(evtchn->port / BITS_PER_EVTCHN_WORD(d), + &vcpu_info(v, evtchn_pending_sel))); +} + static const struct evtchn_port_ops evtchn_port_ops_2l = { .set_pending = evtchn_2l_set_pending, @@ -81,6 +90,7 @@ static const struct evtchn_port_ops evtchn_port_ops_2l = .unmask = evtchn_2l_unmask, .is_pending = evtchn_2l_is_pending, .is_masked = evtchn_2l_is_masked, + .print_state = evtchn_2l_print_state, }; void evtchn_2l_init(struct domain *d) diff --git a/xen/common/event_channel.c b/xen/common/event_channel.c index 618ced0..51d59b8 100644 --- a/xen/common/event_channel.c +++ b/xen/common/event_channel.c @@ -1232,7 +1232,7 @@ static void domain_dump_evtchn_info(struct domain *d) d->poll_mask, d->max_vcpus); printk("Event channel information for domain %d:\n" "Polling vCPUs: {%s}\n" - " port [p/m]\n", d->domain_id, keyhandler_scratch); + " port [p/m/s]\n", d->domain_id, keyhandler_scratch); spin_lock(&d->event_lock); @@ -1247,10 +1247,12 @@ static void domain_dump_evtchn_info(struct domain *d) if ( chn->state == ECS_FREE ) continue; - printk(" %4u [%d/%d]: s=%d n=%d x=%d", + printk(" %4u [%d/%d/", port, !!evtchn_port_is_pending(d, chn), - !!evtchn_port_is_masked(d, chn), + !!evtchn_port_is_masked(d, chn)); + evtchn_port_print_state(d, chn); + printk("]: s=%d n=%d x=%d", chn->state, chn->notify_vcpu_id, chn->xen_consumer); switch ( chn->state ) diff --git a/xen/include/xen/event.h b/xen/include/xen/event.h index 7522f4e..90410e0 100644 --- a/xen/include/xen/event.h +++ b/xen/include/xen/event.h @@ -115,6 +115,7 @@ struct evtchn_port_ops { void (*unmask)(struct domain *d, struct evtchn *evtchn); bool_t (*is_pending)(struct domain *d, const struct evtchn *evtchn); bool_t (*is_masked)(struct domain *d, const struct evtchn *evtchn); + void (*print_state)(struct domain *d, const struct evtchn *evtchn); }; static inline void evtchn_port_set_pending(struct vcpu *v, @@ -147,4 +148,10 @@ static inline bool_t evtchn_port_is_masked(struct domain *d, return d->evtchn_port_ops->is_masked(d, evtchn); } +static inline void evtchn_port_print_state(struct domain *d, + const struct evtchn *evtchn) +{ + d->evtchn_port_ops->print_state(d, evtchn); +} + #endif /* __XEN_EVENT_H__ */ -- 1.7.2.5 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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