VIRTUTECH CONFIDENTIAL    Previous - Up - Next

ram

Implemented By

persistent-ram, ram

Description

The ram interface is implemented by classes that provide random access read/write memory. The rom interface is identical to ram but provides read only memory (writes are dropped by the memory system).

Both the ram and rom interfaces are Simics internal, and should not be used by user-defined classes.

The phys_to_real_p function returns the page associated with the given address. get_page does the same thing but also returns the corresponding tag page in tags_ret.

typedef struct ram_interface {
        page_t *(*phys_to_real_p)(conf_object_t *obj, physical_address_t addr);
        page_t *(*get_page)(conf_object_t *obj, physical_address_t addr,
                            page_t **tags_ret, unsigned *tag_ofs_ret);
} ram_interface_t;

#define RAM_INTERFACE "ram"

VIRTUTECH CONFIDENTIAL    Previous - Up - Next