From nobody Wed Apr 16 03:52:39 2025 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 1688975516658885.271328859425; Mon, 10 Jul 2023 00:51:56 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qIleE-0006T3-F4; Mon, 10 Jul 2023 03:49:30 -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 1qIldy-0006NH-Ms for qemu-devel@nongnu.org; Mon, 10 Jul 2023 03:49:20 -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 1qIldw-0006vN-RD for qemu-devel@nongnu.org; Mon, 10 Jul 2023 03:49:14 -0400 Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4Qzx3B6BR9z4wyB; Mon, 10 Jul 2023 17:49:10 +1000 (AEST) 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 4Qzx386314z4wy9; Mon, 10 Jul 2023 17:49:08 +1000 (AEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Richard Henderson , Alex Williamson , Zhenzhong Duan , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Joao Martins Subject: [PULL 06/11] vfio/migration: Return bool type for vfio_migration_realize() Date: Mon, 10 Jul 2023 09:48:43 +0200 Message-ID: <20230710074848.456453-7-clg@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230710074848.456453-1-clg@redhat.com> References: <20230710074848.456453-1-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=Zxd8=C4=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=0.249, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: 1688975517861100003 From: Zhenzhong Duan Make vfio_migration_realize() adhere to the convention of other realize() callbacks(like qdev_realize) by returning bool instead of int. Suggested-by: C=C3=A9dric Le Goater Suggested-by: Joao Martins Signed-off-by: Zhenzhong Duan Reviewed-by: Joao Martins Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: C=C3=A9dric Le Goater --- include/hw/vfio/vfio-common.h | 2 +- hw/vfio/migration.c | 15 ++++++++++----- hw/vfio/pci.c | 3 +-- 3 files changed, 12 insertions(+), 8 deletions(-) diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 45167c8a8a54..da43d273524e 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -252,7 +252,7 @@ int vfio_spapr_create_window(VFIOContainer *container, int vfio_spapr_remove_window(VFIOContainer *container, hwaddr offset_within_address_space); =20 -int vfio_migration_realize(VFIODevice *vbasedev, Error **errp); +bool vfio_migration_realize(VFIODevice *vbasedev, Error **errp); void vfio_migration_exit(VFIODevice *vbasedev); =20 #endif /* HW_VFIO_VFIO_COMMON_H */ diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index e3954570c853..2674f4bc472d 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -846,7 +846,12 @@ void vfio_reset_bytes_transferred(void) bytes_transferred =3D 0; } =20 -int vfio_migration_realize(VFIODevice *vbasedev, Error **errp) +/* + * Return true when either migration initialized or blocker registered. + * Currently only return false when adding blocker fails which will + * de-register vfio device. + */ +bool vfio_migration_realize(VFIODevice *vbasedev, Error **errp) { Error *err =3D NULL; int ret; @@ -854,7 +859,7 @@ int vfio_migration_realize(VFIODevice *vbasedev, Error = **errp) if (vbasedev->enable_migration =3D=3D ON_OFF_AUTO_OFF) { error_setg(&err, "%s: Migration is disabled for VFIO device", vbasedev->name); - return vfio_block_migration(vbasedev, err, errp); + return !vfio_block_migration(vbasedev, err, errp); } =20 ret =3D vfio_migration_init(vbasedev); @@ -869,7 +874,7 @@ int vfio_migration_realize(VFIODevice *vbasedev, Error = **errp) vbasedev->name, ret, strerror(-ret)); } =20 - return vfio_block_migration(vbasedev, err, errp); + return !vfio_block_migration(vbasedev, err, errp); } =20 if (!vbasedev->dirty_pages_supported) { @@ -896,7 +901,7 @@ int vfio_migration_realize(VFIODevice *vbasedev, Error = **errp) } =20 trace_vfio_migration_realize(vbasedev->name); - return 0; + return true; =20 add_blocker: ret =3D vfio_block_migration(vbasedev, err, errp); @@ -904,7 +909,7 @@ out_deinit: if (ret) { vfio_migration_deinit(vbasedev); } - return ret; + return !ret; } =20 void vfio_migration_exit(VFIODevice *vbasedev) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index eefd4ec330d9..68dd99283620 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3207,8 +3207,7 @@ static void vfio_realize(PCIDevice *pdev, Error **err= p) } =20 if (!pdev->failover_pair_id) { - ret =3D vfio_migration_realize(vbasedev, errp); - if (ret) { + if (!vfio_migration_realize(vbasedev, errp)) { goto out_deregister; } } --=20 2.41.0