> Russell King wrote: >> Has anyone addressed my issue with it that this is wide-open for >> abuse by allocating large chunks of memory, and then remapping >> them in some way with different attributes, thereby violating the >> ARM architecture specification? 2011/1/4 Johan MOSSBERG <johan.xx.mossberg@xxxxxxxxxxxxxx>: > Where in the specification (preferably ARMv7) can I find > information about this? Is the problem that it is simply > forbidden to map an address multiple times with different cache > setting and if this is done the hardware might start failing? Or > is the problem that having an address mapped cached means that > speculative pre-fetch can read it into the cache at any time, > possibly causing problems if an un-cached mapping exists? IIRC both apply. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
