Patent ID: 8122171
Filing Date: 2012-02-21
Classification: G06F

Abstract:
1. A method for enumerating one or more downstream bus ports in a system, comprising: masking the one or more downstream bus ports in the system, wherein the system comprises a first bus, a bridge, and a second bus, wherein the bridge is coupled to the first bus at an upstream bus port, and wherein the bridge is coupled to the second bus, wherein the second bus comprises the one or more downstream bus ports; performing the initial bus enumeration for the system during system boot after said masking, wherein the initial bus enumeration enumerates and allocates system resources to one or more upstream ports comprised in the first bus, wherein the one or more downstream bus ports are not enumerated and corresponding system resources are not allocated to the one or more downstream ports during the initial bus enumeration due to said masking; unmasking the one or more downstream bus ports after said performing the initial bus enumeration; re-enumerating the second bus after said unmasking, wherein said re-enumerating enumerates and allocates system resources to the one or more downstream bus ports.