Method and system for supporting virtual mappings for shared firmware
AssigneeHewlett-Packard Development Company, L.P.
InventorsRichard Powers, Gregory Albrecht
Life of this patent
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Abstract
System and method of supporting virtual mappings for shared firmware contents in a computer system are described. In one embodiment, the method comprises, responsive to a function call issued by a processor, determining whether address translation has been enabled for the issuing processor; and responsive to a determination that address translation has been enabled, determining an ID of the issuing processor; identifying a Physical-to-Virtual (“PTV”) Map corresponding to the issuing processor; extracting from the identified PTV map a virtual address corresponding to a physical address passed in the function call; and returning the virtual address to the issuing processor.
Claims31
A method of supporting virtual mappings for shared firmware contents in a computer system, the method comprising:
- responsive to a function call issued by a processor, determining whether address translation has been enabled for the issuing processor;
- and
- responsive to a determination that address translation has been enabled:
- determining an ID of the issuing processor;
- identifying a Physical-to-Virtual (“PTV”) Map corresponding to the issuing processor;
- extracting from the identified PTV map a virtual address corresponding to a physical address passed in the function call;
- and
- returning the virtual address to the issuing processor.
A computer system capable of supporting virtual mappings for shared firmware contents, the computer system comprising:
- means responsive to a function call issued by a processor for determining whether address translation has been enabled for the issuing processor;
- and
- means responsive to a determination that address translation has been enabled for determining an ID of the issuing processor;
- identifying a Physical-to-Virtual (“PTV”) Map corresponding to the issuing processor;
- extracting from the identified PTV map a virtual address corresponding to a physical address passed in the function call;
- and returning the virtual address to the issuing processor.
A computer-readable medium operable with a computer system for supporting virtual mappings for shared firmware contents in the computer system, the medium having stored thereon:
- instructions executable by the computer system responsive to a function call issued by a processor for determining whether address translation has been enabled for the issuing processor;
- and
- instructions executable by the computer system responsive to a determination that address translation has been enabled for:
- determining an ID of the issuing processor;
- identifying a Physical-to-Virtual (“PTV”) Map corresponding to the issuing processor;
- extracting from the identified PTV map a virtual address corresponding to a physical address passed in the function call;
- and
- returning the virtual address to the issuing processor.
A server system, comprising:
- a logic structure operable responsive to a function call issued by a processor for determining whether address translation has been enabled for the issuing processor;
- and
- a logic structure operable responsive to a determination that address translation has been enabled for determining an ID of the issuing processor;
- identifying a Physical-to-Virtual (“PTV”) Map corresponding to the issuing processor;
- extracting from the identified PTV map a virtual address corresponding to a physical address passed in the function call;
- and returning the virtual address to the issuing processor.
Dependencies are inferred from the claim text.