On Thursday 09,December,2010 12:43 AM, avadh patel wrote:
On Wed, Dec 8, 2010 at 6:09 AM, Shen Zhong <[email protected]
<mailto:[email protected]>> wrote:
Dear all,
Suppose I know a certain virtual address, and I need to read the
corresponding data from the main memory in ptlsim, but I don't want to
add an entry to the load store queue, since there was no such load
instruction in the application we are running.
What I found is ptlsim didn't implement the memory itself, what it
does is reading the data from the host memory. Is it right? If so how
can I read the data from the memory after knowing its virtual address?
Yes you are right about no data memory in simulated model. You can
read the data
using 'Context::loadvirt' function. But before using that function you
need to make sure
that requested virtual address doesn't have page fault.
- Avadh
Thanks a lot!
-Regards
Shen Zhong
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Thanks a lot Avadh.
Now I can read the data from memory. I use the "has_page_fault" function
to check whether there is page fault. However, sometimes there are page
faults, but I still want to read the data even if there is page fault.
How can I handle it?
-Best Regards
Shen Zhong
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