Extensible bios for boot support of devices on multiple hierarchical buses
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United States of America Patent
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-
Dec 29, 1998
Grant Date -
N/A
app pub date -
Sep 3, 1996
filing date -
Sep 3, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An extensible BIOS for a computer system to manage boot-up of an arbitrary number of devices connected over an arbitrary number of buses and bridges of varying type. The extensible BIOS identifies all bridges or buses connected to the system and then initializes each and every bus or bridge. The extensible BIOS identifies boot devices as resident on all initialized bridges and buses, and then detects and initializes drivers on the identified boot devices. According to the selection and priority of boot, boot-up then commences utilizing the boot devices. Between one instance of computer reset or boot-up and the next, the extensible BIOS provides that the hierarchy of buses and bridges and boot devices connected to them may be altered while still recognizing all boot relevant devices, buses and bridges regardless of the nature of the alteration.
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