Huawei Technologies Co., Limited

Dongdong Yao

Yu Meng Li

Cong Wang

Yu Li

Zhangkai Zhang

Yihua Tan

Methods and systems for configuring an address translation relationship is disclosed. In an implementation, a method comprises: transferring, by a virtual machine manager (VMM) deployed in a rich execution environment (REE) of a computer system, a first address translation relationship to a secure partition manager (SPM) deployed in a trusted execution environment (TEE) of the computer system, wherein the first address translation relationship comprises an address translation relationship from an intermediate physical address (IPA) allocated to a virtual machine (VM) deployed in the REE to a physical address (PA) for the SPM to perform IPA-to-PA address translation based on the first address translation relationship when transmitting data from the SP to the VM, wherein the PA is a memory address.

Method for configuring address translation relationship, and computer system

The application provides an example user interface switching method and an example terminal. The method includes, after the terminal triggers a trusted user interface (TUI) display request of a client application (CA) according to a first operation on a CA interface by a user, the terminal switches a display environment of the CA from a rich execution environment (REE) to a trusted execution environment (TEE) according to the TUI display request, and then displays a trusted application (TA) interface that is of the CA and that is in the TEE. The method also includes performing, by the user, an operation of inputting sensitive information on the TA interface.

User interface switching method and terminal

A method, implemented by a computer system comprising a trusted execution environment (TEE) and a rich execution environment (REE) includes creating, by the TEE, a plurality of sub-threads preparing to implement sub-functions of a trusted application (TA), for each sub-thread, triggering, by the TEE, the REE to generate a shadow thread, where running of the shadow thread will cause a core on which the shadow thread runs to enter the TEE, and scheduling the created sub-thread to the entered core for execution.

Scheduling sub-thread on a core running a trusted execution environment

The application provides a user interface switching method and a terminal. After the terminal triggers a TUI display request of a CA according to a first operation on a CA interface by a user, the terminal switches a display environment of the CA from an REE to a TEE according to the TUI display request, and then displays a TA interface that is of the CA and that is in the TEE. In this case, the user may perform an operation of inputting sensitive information on the TA interface, and a malicious program that runs in the REE cannot access a hardware device to obtain the input operation in the TEE by the user. Therefore, t sensitive information of the user is stolen is prevented, thereby effectively enhancing security of the input operation by the user.

Growing community of inventors

Beijing, China

Dongdong Yao