Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output addressing
Reexamination Certificate
2008-02-04
2010-06-15
Hafiz, Tariq (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output addressing
C710S030000, C710S056000, C718S104000, C345S543000, C345S545000, C345S565000, C711S006000
Reexamination Certificate
active
07739417
ABSTRACT:
The present invention provides a virtual machine system and a method of accessing a graphics card. The virtual machine system includes a VMM, an SOS and at least one GOS, and further includes a resource converting module for performing IO address converting on graphics card framebuffer accessing data from GOS(s) or mapping MMIO(s) to physical MMIO(s) of a graphics card based on a resource converting table, and sending the processed data to the graphics card; and a framebuffer allocating module for dividing a framebuffer resource of the graphics card into multiple blocks and allocating them respectively to corresponding GOS(s). The resource converting table(s) records correspondences between a resource allocation for the graphics card by SOS and a resource allocation for the graphics card by GOS(s). The framebuffer MMIO resource(s) allocated to the graphics card by GOS(s) is/are the framebuffer allocated to GOS(s) by the framebuffer allocating module.
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Chen Jun
Ke Ke
Liu Chunmei
Liu Yongfeng
Hafiz Tariq
Legend Holdings Ltd.
Lenovo (Beijing) Limited
Lewis-Taylor Dayton
Patterson Thuente Christensen Pedersen , P.A.
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