Efficient system management synchronization and memory...

G - Physics – 06 – F

Patent

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G06F 9/46 (2006.01) G06F 1/32 (2006.01)

Patent

CA 2541930

A method and apparatus for optimization of multiprocessor synchronization and allocation of system management memory space is herein described. When a system management interrupt (SMI) is received, a first processor checks the state of a second processor, which may be done by checking a storage medium storing values representative of the second processor's state. The first processor handles the SMI or waits for the second processor dependent on the state of the second processor. Furthermore, system management memory is allocated where a first system management memory space assigned to a first processor overlaps a second system management memory space assigned to a second processor, leaving first and second non-overlapping region.

L'invention concerne un procédé et un appareil pour optimiser la synchronisation de plusieurs processeurs et l'allocation d'espaces mémoires de gestion de système. Lorsqu'une interruption de gestion de système (SMI) est reçue, un premier processeur contrôle l'état d'un second processeur, ce contrôle pouvant être effectué par vérification d'une valeur de stockage d'un support de stockage représentatif de l'état du second processeur. Le premier processeur traite la SMI ou attend le second processeur, en fonction de l'état de ce dernier. En outre, une mémoire de gestion de système est attribuée lorsqu'un premier espace mémoire de gestion de système alloué au premier processeur déborde sur un second espace mémoire de gestion de système assigné au second processeur, laissant une première et deuxième zone sans recouvrement.

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