我有一套能够获取外部消费物价指数记忆的果实,我也希望获得外部记忆,以便我能够像正常记忆一样从方案获得。
如果我使用通常的微粒()在果园档案上重新铺设,那么我就只能看到一个装置记忆区,而不是其虚拟的果园。
是否允许我这样做?
TIA
如果特性装置驱动器提供了<代码>mmap执行,则该装置将发挥作用。 这可能是一个很好的理由:
Memory access instructions create memory transactions on the bus. An SPI memory is not addressable that way (although the SPI controller may use memory-mapped I/O, that s for its own register-level interface, not the memory content). You could build an SPI memory controller with a memory bus interface, I suppose, but you d lose the device-indepedence of the SPI standard.
可能播送一个记忆区(一页记忆,标明它无法进入,并处理出入违规事件(SIGBUS和SIGSEGV),但这会非常低效率。 有时,你们发现的是虚拟机器,但表现非常差。
象你这样,需要某种动力,使记忆区域能够接触到通过注重特性的界面发出的指挥。 这很可能是简单直截了当的路障驱动器。
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