71 lines
2.4 KiB
Diff
71 lines
2.4 KiB
Diff
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From f5b5cba0b86caacdea334725bedcdfb689504b3a Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Alex=20Benn=C3=A9e?= <alex.bennee@linaro.org>
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Date: Tue, 2 Aug 2022 10:49:57 +0100
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Subject: [PATCH] hw/virtio: add some vhost-user trace events
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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These are useful for tracing the lifetime of vhost-user connections.
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Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Message-Id: <20220802095010.3330793-10-alex.bennee@linaro.org>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: fangyi <eric.fangyi@huawei.com>
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---
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hw/virtio/trace-events | 4 ++++
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hw/virtio/vhost.c | 6 ++++++
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2 files changed, 10 insertions(+)
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diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
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index 63c7668e5b..b8a33b2a83 100644
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--- a/hw/virtio/trace-events
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+++ b/hw/virtio/trace-events
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@@ -8,6 +8,10 @@ vhost_region_add_section_aligned(const char *name, uint64_t gpa, uint64_t size,
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vhost_section(const char *name) "%s"
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vhost_reject_section(const char *name, int d) "%s:%d"
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vhost_iotlb_miss(void *dev, int step) "%p step %d"
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+vhost_dev_cleanup(void *dev) "%p"
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+vhost_dev_start(void *dev, const char *name) "%p:%s"
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+vhost_dev_stop(void *dev, const char *name) "%p:%s"
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+
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# vhost-user.c
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vhost_user_postcopy_end_entry(void) ""
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diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
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index c1f5cb5b91..86c727d2ab 100644
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--- a/hw/virtio/vhost.c
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+++ b/hw/virtio/vhost.c
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@@ -1460,6 +1460,8 @@ void vhost_dev_cleanup(struct vhost_dev *hdev)
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{
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int i;
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+ trace_vhost_dev_cleanup(hdev);
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+
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for (i = 0; i < hdev->nvqs; ++i) {
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vhost_virtqueue_cleanup(hdev->vqs + i);
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}
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@@ -1766,6 +1768,8 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev)
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/* should only be called after backend is connected */
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assert(hdev->vhost_ops);
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+ trace_vhost_dev_start(hdev, vdev->name);
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+
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vdev->vhost_started = true;
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hdev->started = true;
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hdev->vdev = vdev;
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@@ -1852,6 +1856,8 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev)
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/* should only be called after backend is connected */
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assert(hdev->vhost_ops);
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+ trace_vhost_dev_stop(hdev, vdev->name);
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+
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if (hdev->vhost_ops->vhost_dev_start) {
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hdev->vhost_ops->vhost_dev_start(hdev, false);
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}
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--
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2.27.0
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