| 摘要 |
A cache memory controller allows hot-plug insertion and removal of cache memory modules. After detecting an insertion, the controller waits a predetermined time, then determines the size and speed of the added cache memory modules. If the inserted cache memory module is acceptable, then tag memory is reconfigured to correspond to the inserted memory. The added cache memory is initialized. After successful insertion and initialization, a status bit in the cache controller is set to indicate memory has been added. Prior to removal of a cache memory module, the cache is flushed to main memory and further cache transactions are disabled. After removal of the cache memory module, tag memory is reconfigured to mark a corresponding portion of the tag memory as unused. After successful removal of the cache memory module and reconfiguration of the tag memory, the cache memory controller enables new cache memory transactions.
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