[okl4-developer] About the virtual memory management of OKL4

[kashin Lin]

Hi,

i have some quetions about the virtual memory management of OKL4.
( i am not familiar with
its manage rule, are there any documents i can refer to?)

following are my questions:
1. what is the scheme of the mapping from PHY address to VIRT address in
OKL4 (pistachio)?
    what source codes deal with it?

2. the platform i run OKL4 is a development board with a xscale pxa270 CPU
and a DSP.
    i know the PHY address of the DSP, and CPU can transfer data to it
through this address.
    but in OKL4, it seems it used VIRT memory instead of PHY memory.
    so how to let the L4's application transfer data to DSP?
    if i should build the PHY address to VIRT address mapping first,
what files i should modify?
    or i can use PHY address directly?

thanks for your help


Best regard,

kashin lin
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