Abstract: This application provides example methods for migrating a virtual machine and example apparatuses. One example physical host includes a source-end virtual machine and a physical function (PF) driver, where the source-end virtual machine is configured to send a first instruction to a source-end pass-through device via the PF driver, where the first instruction instructs the source-end pass-through device to record a storage address of dirty page data in the source-end pass-through device, and the dirty page data is data written by the source-end pass-through device to a memory corresponding to the source-end virtual machine. The source-end virtual machine is configured to obtain the storage address that is of the dirty page data and that is recorded by the source-end pass-through device, and send to-be-migrated data to a destination-end virtual machine.

Abstract: This application provides a method for migrating a virtual machine and an apparatus. The method is applied to a source-end physical host, the source-end physical host includes a host machine operating system and a source-end virtual machine running in the host machine operating system, and the host machine operating system includes a physical function (PF) driver. According to the technical solutions of this application, memory consistency, before and after a migration process, of a virtual machine configured with a pass-through device can be ensured.

Abstract: The present disclosure provides a channel allocation method and apparatus for a display subsystem, and a related storage medium. The method includes: determining a target to-be-displayed layer based on a priority of a first to-be-displayed layer and a priority of a second to-be-displayed layer, where the first to-be-displayed layer belongs to a first domain, the second to-be-displayed layer belongs to a second domain, the first domain is different from the second domain, and the target to-be-displayed layer is a layer with a higher priority between the first to-be-displayed layer and the second to-be-displayed layer; and allocating, in at least one synthesis channel, a target synthesis channel to the target to-be-displayed layer, where the target synthesis channel is configured to transmit the target to-be-displayed layer to an image synthesis unit, so that the image synthesis unit synthesizes the target to-be-displayed layer into a to-be-displayed image.

Abstract: This application provides a service process invoking method and a related apparatus. The method includes: An application process obtains a context of a binder process; the application process obtains a handle of a service process based on the context of the binder process; the application process runs a program of the binder process based on the context of the binder process, to obtain a context of the service process based on the handle of the service process; and the application process runs a program of the service process based on the context of the service process, to respond to a binder request of the application process, where the binder request is used to request a system service provided by the service process. In embodiments of this application, actual power consumption is accurately reflected.

Abstract: This application provides a method for migrating a virtual machine and an apparatus. The method is applied to a source-end physical host, the source-end physical host includes a host machine operating system and a source-end virtual machine running in the host machine operating system, and the host machine operating system includes a PF driver. According to the technical solutions of this application, memory consistency, before and after a migration process, of a virtual machine configured with a pass-through device can be ensured.