Commit 06409bd9 authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Cornelia Huck
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virtio-ccw: Provide traces for indicator changes 



This allows to trace changes in the summary and queue indicators
for the non-irqfd case. For irqfd, kernel traces are needed instead.

Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
parent 06e686ea

hw/s390x/virtio-ccw.c

+1 −0
Original line number Diff line number Diff line
@@ -1091,6 +1091,7 @@ static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 
        ind_old = *ind_addr;

        ind_new = ind_old | to_be_set;

    } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old);

    trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new);

    cpu_physical_memory_unmap(ind_addr, len, 1, len);



    return ind_old;

trace-events

+1 −0
Original line number Diff line number Diff line
@@ -1475,6 +1475,7 @@ css_adapter_interrupt(uint8_t isc) "CSS: adapter I/O interrupt (isc %x)" 
# hw/s390x/virtio-ccw.c

virtio_ccw_interpret_ccw(int cssid, int ssid, int schid, int cmd_code) "VIRTIO-CCW: %x.%x.%04x: interpret command %x"

virtio_ccw_new_device(int cssid, int ssid, int schid, int devno, const char *devno_mode) "VIRTIO-CCW: add subchannel %x.%x.%04x, devno %04x (%s)"

virtio_ccw_set_ind(uint64_t ind_loc, uint8_t ind_old, uint8_t ind_new) "VIRTIO-CCW: indicator at %" PRIu64 ": %x->%x"



# hw/intc/s390_flic_kvm.c

flic_create_device(int err) "flic: create device failed %d"