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Mon, 31 Jul 2023 03:25:32 -0700 From: Avihai Horon To: CC: Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_G?= =?utf-8?q?oater?= , Paolo Bonzini , Joao Martins , Yishai Hadas , Jason Gunthorpe , Maor Gottlieb , Kirti Wankhede , Tarun Gupta , Avihai Horon Subject: [PATCH for-8.2 v2 3/6] qdev: Add qdev_add_vm_change_state_handler_full() Date: Mon, 31 Jul 2023 13:25:18 +0300 Message-ID: <20230731102521.15335-4-avihaih@nvidia.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20230731102521.15335-1-avihaih@nvidia.com> References: <20230731102521.15335-1-avihaih@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT010:EE_|SA0PR12MB4559:EE_ X-MS-Office365-Filtering-Correlation-Id: 2008ea74-9a60-4223-7afd-08db91b084a4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161; 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envelope-from=avihaih@nvidia.com; helo=NAM02-BN1-obe.outbound.protection.outlook.com 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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add qdev_add_vm_change_state_handler_full() variant that allows setting a prepare callback in addition to the main callback. This will facilitate adding P2P support for VFIO migration in the following patches. Signed-off-by: Avihai Horon Signed-off-by: Joao Martins Reviewed-by: Cédric Le Goater --- include/sysemu/runstate.h | 3 +++ hw/core/vm-change-state-handler.c | 14 +++++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/include/sysemu/runstate.h b/include/sysemu/runstate.h index 764a0fc6a4..08afb97695 100644 --- a/include/sysemu/runstate.h +++ b/include/sysemu/runstate.h @@ -23,6 +23,9 @@ qemu_add_vm_change_state_handler_prio_full(VMChangeStateHandler *cb, VMChangeStateEntry *qdev_add_vm_change_state_handler(DeviceState *dev, VMChangeStateHandler *cb, void *opaque); +VMChangeStateEntry *qdev_add_vm_change_state_handler_full( + DeviceState *dev, VMChangeStateHandler *cb, + VMChangeStateHandler *prepare_cb, void *opaque); void qemu_del_vm_change_state_handler(VMChangeStateEntry *e); /** * vm_state_notify: Notify the state of the VM diff --git a/hw/core/vm-change-state-handler.c b/hw/core/vm-change-state-handler.c index 1f3630986d..8e2639224e 100644 --- a/hw/core/vm-change-state-handler.c +++ b/hw/core/vm-change-state-handler.c @@ -55,8 +55,20 @@ static int qdev_get_dev_tree_depth(DeviceState *dev) VMChangeStateEntry *qdev_add_vm_change_state_handler(DeviceState *dev, VMChangeStateHandler *cb, void *opaque) +{ + return qdev_add_vm_change_state_handler_full(dev, cb, NULL, opaque); +} + +/* + * Exactly like qdev_add_vm_change_state_handler() but passes a prepare_cb + * argument too. + */ +VMChangeStateEntry *qdev_add_vm_change_state_handler_full( + DeviceState *dev, VMChangeStateHandler *cb, + VMChangeStateHandler *prepare_cb, void *opaque) { int depth = qdev_get_dev_tree_depth(dev); - return qemu_add_vm_change_state_handler_prio(cb, opaque, depth); + return qemu_add_vm_change_state_handler_prio_full(cb, prepare_cb, opaque, + depth); }