Assured Information Security, Inc.

Brendan Kerrigan

Rian Patrick Quinn

Maurice Gale

Sandy Stutsman

Rodney Forbes

Jonathan Farrell

A method provides a graphical interface for a computer system and includes receiving window information from each domain of multiple domains in which applications execute. Based on the received window information, the method builds the graphical interface on a graphics device of the computer system from graphics data provided from the multiple domains to the graphics device. The graphics device includes a GPU and graphics memory having multiple graphics memory portions, where each domain is dedicated a respective different graphics memory portion and is given write access thereto. The building issues commands to the graphics device that instruct the GPU to composition together graphics data from graphics memory portion(s) to thereby composition together graphics data from each of two of more domains of the multiple domains. The method also includes issuing commands to the graphics device to output the graphical interface to a set of one or more display devices.

On-GPU compositioning of graphical data from multiple domains

User interaction with multiple domains is facilitated while preventing cross-domain transfer of data from those domains. A compositioning domain facilitates this interaction in a secure manner in which cross-domain transfer of data is prevented. This includes obtaining pixel information from the domains via one or more read-only communication paths, providing a user interface to the user, which includes providing a display buffer including at least some of the pixel information obtained from each domain of the domains for display to the user, and maintaining an in-focus domain state. The in-focus domain state indicates which domain of the domains is currently in-focus. User input from the user based on the user interface is provided by a user input handler directly to the currently in-focus domain indicated by the in-focus domain state absent transfer of the user input to the compositioning domain.

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Rome, NY, United States of America

Brendan Kerrigan