Service processor access of non-volatile memory

Details Service processor access of non-volatile memory Service processor access of non-volatile memory

G - Physics

06

F

G06F 13/00 (2006.01) G06F 11/273 (2006.01) G06F 12/00 (2006.01) G06F 13/42 (2006.01)

Patent

CA 2462515

Non-volatile memory access, such as firmware by a service processor (226), is disclosed. The service processor asserts a control signal to select either a first non-volatile memory (230), or a second non-volatile memory (212). The first non-volatile memory is located behind a first bridge controller (204) and is otherwise accessible by the service processor. The second non-volatile memory is located behind a second bridge controller (202) and is otherwise accessible only by a processor (206) other than the service processor. The service processor then accesses the selected non-volatile memory, via a bus (308) communicatively coupled to both the non-volatile memories.

L'invention porte sur l'accès à une mémoire rémanente tel que l'accès à un micrologiciel par un processeur de service (226). Le processeur de service excite un signal de commande pour sélectionner soit une première mémoire rémanente (230), soit une seconde mémoire rémanente (212). La première mémoire rémanente est placée derrière un premier contrôleur de pont (204) et est, autrement, accessible par le processeur de service. La seconde mémoire rémanente est placée derrière un second contrôleur de pont (202) et est, autrement, accessible uniquement par un processeur (206) autre que le processeur de service. Le processeur de service accède ensuite à la mémoire rémanente sélectionnée via un bus (308) couplé par communication aux deux mémoires rémanentes.

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