Computer system capable of fast switching between multiple operating systems and applications

  • US 7,356,677 B1
  • Filed: 10/18/2002
  • Issued: 04/08/2008
  • Est. Priority Date: 10/19/2001
  • Status: Active Grant
First Claim
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1. A hardware platform for a hibernate capable computer system comprising a system manager, said computer system having an OS-independent storage manager operating through a firmware level and a plurality of operating systems and applications, said storage manager having a virtual table of contents for organizing and accessing a plurality of partitions of relevant data and having a plurality of virtual computer systems, each of said virtual computer systems capable of accessing a selection of the partitions, the virtual table of contents (VTOC) being capable of dynamically configuring a plurality of partition tables, said system manager comprising:

  • means for selecting one of said virtual computer systems to become next operable before suspending a currently operational virtual computer system;

    means for suspending the currently operational virtual computer system in an active state;

    means for making the selected virtual computer system operable into a running state, andmeans for switching of the virtual computer systems using a switch flag and BIOS ACPI solutions, and without initialization of power-on self test (POST) in the BIOS, wherein the switch flag is a flag that is set up in storage to differentiate between suspend for fast switching and power save suspend.

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