From nobody Wed Nov 27 20:28:02 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1697622756036620.5016269855741; Wed, 18 Oct 2023 02:52:36 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qt38M-0001Du-Sk; Wed, 18 Oct 2023 05:46:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qt37w-0000PY-Df for qemu-devel@nongnu.org; Wed, 18 Oct 2023 05:46:14 -0400 Received: from gandalf.ozlabs.org ([150.107.74.76]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qt37t-0003UD-G6 for qemu-devel@nongnu.org; Wed, 18 Oct 2023 05:46:08 -0400 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4S9Qvv2cQZz4xbg; Wed, 18 Oct 2023 20:46:03 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4S9Qvr6Br5z4xbC; Wed, 18 Oct 2023 20:46:00 +1100 (AEDT) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Eric Auger , Yi Liu , Zhenzhong Duan , Matthew Rosato , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 09/22] vfio/ap: Use vfio_[attach/detach]_device Date: Wed, 18 Oct 2023 11:45:18 +0200 Message-ID: <20231018094531.733211-10-clg@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231018094531.733211-1-clg@redhat.com> References: <20231018094531.733211-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=150.107.74.76; envelope-from=SRS0=VFJy=GA=redhat.com=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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-ZM-MESSAGEID: 1697622757582100004 From: Eric Auger Let the vfio-ap device use vfio_attach_device() and vfio_detach_device(), hence hiding the details of the used IOMMU backend. We take the opportunity to use g_path_get_basename() which is prefered, as suggested by 3e015d815b ("use g_path_get_basename instead of basename") Signed-off-by: Eric Auger Signed-off-by: Yi Liu Signed-off-by: Zhenzhong Duan Reviewed-by: Matthew Rosato Signed-off-by: C=C3=A9dric Le Goater --- hw/vfio/ap.c | 67 ++++++++++------------------------------------------ 1 file changed, 13 insertions(+), 54 deletions(-) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 6e21d1da5a7090a6b9c77485d67e8eabc261438f..f870f51ffab4a637d2472db4fe4= 141ec7c54a470 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -53,40 +53,6 @@ struct VFIODeviceOps vfio_ap_ops =3D { .vfio_compute_needs_reset =3D vfio_ap_compute_needs_reset, }; =20 -static void vfio_ap_put_device(VFIOAPDevice *vapdev) -{ - g_free(vapdev->vdev.name); - vfio_put_base_device(&vapdev->vdev); -} - -static VFIOGroup *vfio_ap_get_group(VFIOAPDevice *vapdev, Error **errp) -{ - GError *gerror =3D NULL; - char *symlink, *group_path; - int groupid; - - symlink =3D g_strdup_printf("%s/iommu_group", vapdev->vdev.sysfsdev); - group_path =3D g_file_read_link(symlink, &gerror); - g_free(symlink); - - if (!group_path) { - error_setg(errp, "%s: no iommu_group found for %s: %s", - TYPE_VFIO_AP_DEVICE, vapdev->vdev.sysfsdev, gerror->mes= sage); - g_error_free(gerror); - return NULL; - } - - if (sscanf(basename(group_path), "%d", &groupid) !=3D 1) { - error_setg(errp, "vfio: failed to read %s", group_path); - g_free(group_path); - return NULL; - } - - g_free(group_path); - - return vfio_get_group(groupid, &address_space_memory, errp); -} - static void vfio_ap_req_notifier_handler(void *opaque) { VFIOAPDevice *vapdev =3D opaque; @@ -189,22 +155,15 @@ static void vfio_ap_unregister_irq_notifier(VFIOAPDev= ice *vapdev, static void vfio_ap_realize(DeviceState *dev, Error **errp) { int ret; - char *mdevid; Error *err =3D NULL; - VFIOGroup *vfio_group; APDevice *apdev =3D AP_DEVICE(dev); VFIOAPDevice *vapdev =3D VFIO_AP_DEVICE(apdev); + VFIODevice *vbasedev =3D &vapdev->vdev; =20 - vfio_group =3D vfio_ap_get_group(vapdev, errp); - if (!vfio_group) { - return; - } - - vapdev->vdev.ops =3D &vfio_ap_ops; - vapdev->vdev.type =3D VFIO_DEVICE_TYPE_AP; - mdevid =3D basename(vapdev->vdev.sysfsdev); - vapdev->vdev.name =3D g_strdup_printf("%s", mdevid); - vapdev->vdev.dev =3D dev; + vbasedev->name =3D g_path_get_basename(vbasedev->sysfsdev); + vbasedev->ops =3D &vfio_ap_ops; + vbasedev->type =3D VFIO_DEVICE_TYPE_AP; + vbasedev->dev =3D dev; =20 /* * vfio-ap devices operate in a way compatible with discarding of @@ -214,9 +173,10 @@ static void vfio_ap_realize(DeviceState *dev, Error **= errp) */ vapdev->vdev.ram_block_discard_allowed =3D true; =20 - ret =3D vfio_get_device(vfio_group, mdevid, &vapdev->vdev, errp); + ret =3D vfio_attach_device(vbasedev->name, vbasedev, + &address_space_memory, errp); if (ret) { - goto out_get_dev_err; + goto error; } =20 vfio_ap_register_irq_notifier(vapdev, VFIO_AP_REQ_IRQ_INDEX, &err); @@ -230,20 +190,19 @@ static void vfio_ap_realize(DeviceState *dev, Error *= *errp) =20 return; =20 -out_get_dev_err: - vfio_ap_put_device(vapdev); - vfio_put_group(vfio_group); +error: + error_prepend(errp, VFIO_MSG_PREFIX, vbasedev->name); + g_free(vbasedev->name); } =20 static void vfio_ap_unrealize(DeviceState *dev) { APDevice *apdev =3D AP_DEVICE(dev); VFIOAPDevice *vapdev =3D VFIO_AP_DEVICE(apdev); - VFIOGroup *group =3D vapdev->vdev.group; =20 vfio_ap_unregister_irq_notifier(vapdev, VFIO_AP_REQ_IRQ_INDEX); - vfio_ap_put_device(vapdev); - vfio_put_group(group); + vfio_detach_device(&vapdev->vdev); + g_free(vapdev->vdev.name); } =20 static Property vfio_ap_properties[] =3D { --=20 2.41.0