Storage space distribution method, apparatus and electronic device

Abstract

The embodiment of the invention discloses a storage space distribution method, apparatus and an electronic device. A data storage area corresponding to a common system of the electronic device at least comprises a data area, a system area and a cache area, wherein the system area and the cache area are corresponding to a safety system of the electronic device. When a storage space distribution request of a first system is received, whether storage space of the data area is enough is determined; and if the storage space of the data area is determined to be enough, the storage space is distributed in the data area for the first system. The first system can be either the common system or the safety system. In the embodiment, the data storage area of the common system can spare the system area and the cache area specifically for the safety system; the data area is configured to work as a sharing storage area for the common system and the safety system; storage space can be distributed in the data area when any one system requests storage space; and therefore, for each system, the data area is dynamically distributed, so utilization rate of storage space of multi-systems can be improved.

Description

technical field [0001] The present invention relates to the technical field of storage, and more specifically, to a storage space allocation method, device and electronic equipment. Background technique [0002] In a multi-system electronic device, the system is usually divided into a common system (personal private domain, PPD) and a security system (secure enterprise domain, SED). The schematic diagram of the traditional storage space allocation method is as follows figure 1 As shown, the data area (such as the / data partition) of the common system reserves a part of fixed storage space for the security system, and this part of the fixed storage space is used as the system area (such as the / system partition) and cache area (such as the / cache partition) of the security system. ) and data area (such as / data partition), no matter which system, the system area, cache area and data area of ​​the system are fixed. [0003] In the process of implementing the present invention...

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Problems solved by technology

[0003] In the process of implementing the present invention, the inventor found that in the traditional storage space allocation method, since the storage space of the common system and the storage space of the security system are all pre-allocated and fixed, the security system is prone to insufficient space, However, there is a large amount of available space in the ordinary system, or the space in the ordinary system is insufficient, and there is a large amount of free space in the security system, and because the security system cannot store data in the storage space of the ordinary system, the ordinary system cannot store data in the security system. storage space, therefore, the existing solution is likely to cause the problem of low utilization of storage space

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