VIRTUAL MACHINE MEMORY MANAGEMENT METHOD, PHYSICAL MAIN MACHINE, PCIE DEVICE AND CONFIGURATION METHOD THEREFOR, AND MIGRATION MANAGEMENT DEVICE

摘要

A method for managing a memory of a virtual machine, a physical host, a PCIE device and a configuration method thereof, and a migration management device are provided, and relate to the field of virtual machines. The method includes: allocating, by a virtual machine, a memory to at least one service carried on a PCIE device (101), where the memory allocated to each service includes multiple memory blocks, each of the multiple memory blocks is used to save working information of a corresponding service, and each memory block is a section of memory space in which guest physical addresses are consecutive; generating, by the virtual machine, a base address table BAT and a chip logic address table CLAT according to the memory allocated to each service (102), where the BAT includes a CLAT entry base address corresponding to each service, and the CLAT includes a first address of each memory block; and sending, by the virtual machine, an address of the BAT and a function number corresponding to the virtual machine to the PCIE device (103). The PCIE device is configured to: record a correspondence between the address of the BAT and the function number, and obtain, from the virtual machine, working information of a service according to the correspondence between the address of the BAT and the function number.