how to share memory between ARM and DSPs. While ARM is running LINUX and DSP is running SYSBIOS?

We are developing an application that is running on Multi-core EVMK2H. in this application ARM write data chunk of  288KB to a memory location and all dsp's operate on that data and write their result to another memory location from where ARM reads it and stores it in USB.

Now I am a newbie to TI evmk2h and need very specific guidance about how can I share memory regions between ARM and DSP. One thing that is on top of my mind is to write to a Physical address  0x08 0000 0000 that is shared between ARM and DSP. As I am running LINUX on ARM I will mmap that address and write data to it and in DSP application i will directly read from that address. Is it possible? what are other options? 

Regards