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[Qemu-devel] [PATCH 5/7] virtio-ccw: Provide traces for indicator change
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PATCH 5/7] virtio-ccw: Provide traces for indicator changes |
Date: |
Wed, 8 Jun 2016 13:02:43 +0200 |
From: Christian Borntraeger <address@hidden>
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 <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
hw/s390x/virtio-ccw.c | 1 +
trace-events | 1 +
2 files changed, 2 insertions(+)
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 7b265e4..262027b 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -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;
diff --git a/trace-events b/trace-events
index c50b870..f672d9c 100644
--- a/trace-events
+++ b/trace-events
@@ -1472,6 +1472,7 @@ 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 %lx: %x->%x"
# hw/intc/s390_flic_kvm.c
flic_create_device(int err) "flic: create device failed %d"
--
2.6.6
- [Qemu-devel] [PATCH 0/7] s390x: next batch of patches, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 1/7] linux-headers: update, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 2/7] s390x/kvm: add interface for clearing IO irqs, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 6/7] s390x: Limit s390-ccw machines to 248 CPUs, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 4/7] s390x/css: introduce property type for device ids, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 3/7] s390x/css: clear IO irqs when generating IPI CRW, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 7/7] s390x/kvm: Fixup interrupt type for non-adapter I/O interrupts, Cornelia Huck, 2016/06/08
- [Qemu-devel] [PATCH 5/7] virtio-ccw: Provide traces for indicator changes,
Cornelia Huck <=
- Re: [Qemu-devel] [PATCH 0/7] s390x: next batch of patches, Christian Borntraeger, 2016/06/13