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(unknown [2a02:6bf:8080:167::1:21]) by mail-nwsmtp-smtp-corp-main-56.klg.yp-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id wmOQI00FoSw0-ZdwXD6Pi; Wed, 13 Aug 2025 19:49:20 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1755103760; bh=9x+pN5wqcLxluCQaOQzc9Rm1O+CLACFMRucvbD3nD5I=; h=Message-ID:Date:In-Reply-To:Cc:Subject:References:To:From; b=VBYz5hG3FNXy5ZlViA0PqjzTXLzHxobGhbV8JlYjsvSKKBLxdzMXUytO0d0bMI43C 3nj9EblMTuM7mT6PEyA6Jp/hQ1BpaJTmAAk1hHPrP/FGRLZs/bE/tWZ3YZ1sb8MAQK 9sY/Td+4apW8+H6/gUmaFhEwULN6IVBbEiO4NB8Y= Authentication-Results: mail-nwsmtp-smtp-corp-main-56.klg.yp-c.yandex.net; dkim=pass header.i=@yandex-team.ru From: Vladimir Sementsov-Ogievskiy To: mst@redhat.com, peterx@redhat.com, farosas@suse.de, raphael@enfabrica.net Cc: sgarzare@redhat.com, marcandre.lureau@redhat.com, pbonzini@redhat.com, kwolf@redhat.com, hreitz@redhat.com, berrange@redhat.com, eblake@redhat.com, armbru@redhat.com, qemu-devel@nongnu.org, qemu-block@nongnu.org, steven.sistare@oracle.com, den-plotnikov@yandex-team.ru, vsementsov@yandex-team.ru Subject: [PATCH 23/33] vhost: add some useful trace-points Date: Wed, 13 Aug 2025 19:48:44 +0300 Message-ID: <20250813164856.950363-24-vsementsov@yandex-team.ru> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250813164856.950363-1-vsementsov@yandex-team.ru> References: <20250813164856.950363-1-vsementsov@yandex-team.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a02:6b8:c41:1300:1:45:d181:df01; envelope-from=vsementsov@yandex-team.ru; helo=forwardcorp1d.mail.yandex.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @yandex-team.ru) X-ZM-MESSAGEID: 1755103946176124100 Content-Type: text/plain; charset="utf-8" Signed-off-by: Vladimir Sementsov-Ogievskiy --- hw/virtio/trace-events | 8 ++++++++ hw/virtio/vhost.c | 16 ++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index e5142c27f9..bd595fcd91 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -10,7 +10,15 @@ vhost_reject_section(const char *name, int d) "%s:%d" vhost_iotlb_miss(void *dev, int step) "%p step %d" vhost_dev_cleanup(void *dev) "%p" vhost_dev_start(void *dev, const char *name, bool vrings) "%p:%s vrings:%d" +vhost_dev_start_finish(const char *name) "%s" vhost_dev_stop(void *dev, const char *name, bool vrings) "%p:%s vrings:%d" +vhost_dev_stop_finish(const char *name) "%s" +vhost_virtque_start(const char *name, int idx) "%s %d" +vhost_virtque_start_finish(const char *name, int idx) "%s %d" +vhost_virtque_stop(const char *name, int idx) "%s %d" +vhost_virtque_stop_finish(const char *name, int idx) "%s %d" +vhost_dev_init(void) "" +vhost_dev_init_finish(void) "" =20 =20 # vhost-user.c diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index e796ad347d..e7c809400b 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1329,6 +1329,8 @@ int vhost_virtqueue_start(struct vhost_dev *dev, }; struct VirtQueue *vvq =3D virtio_get_queue(vdev, idx); =20 + trace_vhost_virtque_start(vdev->name, idx); + r =3D vhost_vrings_map(dev, vdev, vq, idx); if (r <=3D 0) { return r; @@ -1390,6 +1392,8 @@ int vhost_virtqueue_start(struct vhost_dev *dev, } } =20 + trace_vhost_virtque_start_finish(vdev->name, idx); + return 0; =20 fail: @@ -1408,6 +1412,8 @@ static int do_vhost_virtqueue_stop(struct vhost_dev *= dev, }; int r =3D 0; =20 + trace_vhost_virtque_stop(vdev->name, idx); + if (virtio_queue_get_desc_addr(vdev, idx) =3D=3D 0) { /* Don't stop the virtqueue which might have not been started */ return 0; @@ -1441,6 +1447,8 @@ static int do_vhost_virtqueue_stop(struct vhost_dev *= dev, } =20 vhost_vrings_unmap(dev, vq, true); + + trace_vhost_virtque_stop_finish(vdev->name, idx); return r; } =20 @@ -1598,6 +1606,8 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaq= ue, { int i, r, n_initialized_vqs =3D 0; =20 + trace_vhost_dev_init(); + hdev->vdev =3D NULL; hdev->migration_blocker =3D NULL; =20 @@ -1682,6 +1692,8 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaq= ue, goto fail; } =20 + trace_vhost_dev_init_finish(); + return 0; =20 fail: @@ -2132,6 +2144,8 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODev= ice *vdev, bool vrings) } } vhost_start_config_intr(hdev); + + trace_vhost_dev_start_finish(vdev->name); return 0; fail_iotlb: if (vhost_dev_has_iommu(hdev) && @@ -2210,6 +2224,8 @@ static int do_vhost_dev_stop(struct vhost_dev *hdev, = VirtIODevice *vdev, hdev->started =3D false; vdev->vhost_started =3D false; hdev->vdev =3D NULL; + + trace_vhost_dev_stop_finish(vdev->name); return rc; } =20 --=20 2.48.1