Re: [Gems-users] How to know address space id (ASI) at opal ?

[Dan Gibson <degibson@xxxxxxxx>]

I don't know how to get ASI's when running with Opal, but you should be aware that ASIs are NOT linked to individual processes -- SPARC's ASIs serve a completely different purpose. E.g., nearly all user-space accesses are ASI 0x80 (i.e., all processes will use ASI 0x80). Other ASIs are used to access memory differently, e.g., the trap handlers can use ASI_AS_IF_USER_PRIMARY to touch memory in the process that trapped, and there are ASIs to reverse endianness, etc.

FYI.

Regards,
Dan

On Sun, Apr 18, 2010 at 2:37 AM, junghun lee <ijij41@xxxxxxxxx> wrote:

Hi everyone.

I'm JH. And I have one question, so I post it at this.

 

Now, I've used just ruby, and at ruby, if I want to know address space id (ASI), I could find the value through memory_transaction_t at simics/SimicsDriver.C: makeRequest functions.  ( that is, mem_trans->address_space )

That is not problem.
However, I've added opal to ruby, so I have a problem.

I did figure out other makeRequest function called at interface/OpalInterface.C. Of course, It is ovious.

 

In case of using only ruby, if I wan't know addess space id (ASI or process id), I cound use struct of mem_trans, but in case of using opal, I could not use struct of mem_trans, so I could get value of addess_space.

Now I wan't you know process id when accessing to memory.

 

What should I do ? How ? 

Can you help me? anyone?

 

Thanks.

 

JH

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