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Sun, 16 Jul 2023 01:15:52 -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 3/6] qdev: Add qdev_add_vm_change_state_handler_full() Date: Sun, 16 Jul 2023 11:15:38 +0300 Message-ID: <20230716081541.27900-4-avihaih@nvidia.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20230716081541.27900-1-avihaih@nvidia.com> References: <20230716081541.27900-1-avihaih@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT081:EE_|DM6PR12MB4340:EE_ X-MS-Office365-Filtering-Correlation-Id: 87377c0d-ec34-40f6-69b8-08db85d4e828 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:216.228.117.160; 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envelope-from=avihaih@nvidia.com; helo=NAM10-BN7-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 pre VM state change 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 --- 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 bb38a4b4bd..ca97b9dfa7 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 *pre_change_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..24f155fb62 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 pre_change_cb + * argument too. + */ +VMChangeStateEntry *qdev_add_vm_change_state_handler_full( + DeviceState *dev, VMChangeStateHandler *cb, + VMChangeStateHandler *pre_change_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, pre_change_cb, opaque, + depth); }