REINITIALIZATION OF A PROCESSING SYSTEM FROM VOLATILE MEMORY UPON RESUMING FROM A LOW-POWER STATE

摘要

Boot configuration information (130) is stored to a volatile memory (102) of a processing system (100) during a low-power state. When resuming from the low- power state, a processor device (126) accesses configuration information (138) for a memory controller (114) from a non- volatile memory (104, 124) and restores the memory controller (114) using the configuration information (138) so as to permit access to the volatile memory (102). The processor device (126) then configures the initial contexts of one or more processor cores (106) using core state information (134) maintained by the volatile memory (102) during the low-power state and accessed via the configured memory controller (1 14), and the one or more processor cores (106) completes the boot process by executing resume boot code (136) maintained by the volatile memory (102) during the low-power state and accessed via the configured memory controller (114), rather than accessing boot code (132) from a non-volatile memory (104).