Re: [Gems-users] Ruby for x86 machine

[Muhammad abid Mughal <mabidm_pieas@xxxxxxxxx>]

Hi,

    You dont need to attach Ruby to physical memory, its already attached.In Simics , Every physical memory object (of class ram) has associated memory-space(class of simics) object.. To see if ruby attached ,Type following commands on simics CLI

Ultrsparc processor specific, Give them a try 

 list-objects    display all objects in the system . try to find obj like "phys_mem0" then type

phys_memo.map   Display which ram object(s) this memory space is attached

@conf.phys_mem0.timing_model  If ruby attached then display ruby

@conf.cpu0.physical_memory  Display name of memory-space to which this processor attached

To see how Ruby attached to timing_model of memory-space

see init_local in ruby.c file

Regards,

Muhammad abid

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From: Sitos Lin <sitos.lin@xxxxxxxxx>
To: Gems Users <gems-users@xxxxxxxxxxx>
Sent: Tuesday, December 29, 2009 12:37:08
Subject: Re: [Gems-users] Ruby for x86 machine

Hello:
  I attach Ruby to the x86 machine by following the same instructions
from the quick start:

instruction-fetch-mode instruction-fetch-trace
istc-disable
dstc-disable
cpu-switch-time 1
load-module ruby
ruby0.setparam g_NUM_PROCESSORS 1
ruby0.setparam g_MEMORY_SIZE_BYTES 4294967296
ruby0.init

  There is no instruction indicating which physical memory objects
ruby attach to. How can I attach ruby to a specific memory object?
Thank you.

Best regards,
  Sitos

2009/12/28 Dan Gibson <degibson@xxxxxxxx>:
> Sitos,
> Make sure you have attached Ruby to all physical memory objects. The
> serengeti target in Simics has only one, but as I recall, the x86 target has
> many physical memory spaces.
>
> Regards,
> Dan
>
> On Mon, Dec 28, 2009 at 4:03 AM, Sitos Lin <sitos.lin@xxxxxxxxx> wrote:
>>
>> Hello:
>>  I have modified several files in Ruby to capture the memory access
>> from device (DMA operations). It works well with Sparc machine. I can
>> see the memory requests both from processor and device. However, when
>> I load Ruby module to a x86 machine, there are only requests from
>> processor without the requests from device. Do x86 machine need
>> additional modifications? Thanks.
>> Best regards,
>>  Sitos
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>
>
> --
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