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virtio-ccw: Provide traces for indicator changes

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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: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Christian Borntraeger 2016-06-02 10:57:37 +02:00 • committed by Cornelia Huck
parent 06e686eaab
commit 06409bd91b
2 changed files with 2 additions and 0 deletions
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1
hw/s390x/virtio-ccw.c
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@ -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;