Apparatus and method for granting access to a hardware interface shared between multiple software entities
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United States of America Patent
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N/A
Issued Date -
Nov 16, 2006
app pub date -
May 12, 2005
filing date -
May 12, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and apparatus for granting access to a hardware interface shared between multiple software drivers are described. In one embodiment, the apparatus includes an interface to provide access to a hardware function or a resource. As described herein, the hardware function or resource is shared between at least two software entities, such as, for example, device drivers. In one embodiment, access verification logic denies an access request for the hardware function, unless the key associated with the access request matches a stored key semaphore. In one embodiment, a key size may be relatively large to provide a very low probability that a malicious software entity could accidentally or maliciously gain access to the software. Other embodiments are described and claimed.
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