Method and apparatus for loading a trustable operating system
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United States of America Patent
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Feb 26, 2013
Grant Date -
Mar 4, 2010
app pub date -
Nov 10, 2009
filing date -
Feb 25, 2002
priority date (Note) -
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Abstract
A method and apparatus is provided for securing a region in a memory of a computer. According to one embodiment, the method comprises halting of all but one of a plurality of processors in a computer. The halted processors entering into a special halted state. Content is loaded into the region only after the halting of all but the one of the plurality of processors and the region is protected from access by the halted processors. The method further comprises placing the non-halted processor into a known privileged state, and causing the halted processors to exit the halted state after the non-halted processor has been placed into the known privileged state.
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