[Xen-devel] map_domain_va and map problem with address mapped.

[Paradox <paradox@xxxxxxxxxxx>]

Hi

I have some problem about access a guest location memory using 
map_domain_va function. My situation is next:
I have a simple program running in domU, I retrieve a guest virtual 
address for a struct value and I pause the domain (when I pause the domU 
the interested program still run...).
So I call map_domain_va function that call map_domain_va_pae. It seems 
that everything works properly because I obtain an address (PT walk 
don't fails...), but If I try to access this address I find a "strange" 
value.
For example:

domU guest address: 0xbfd38838 a location that contains an int, for 
example 10.
Address mapped returned by map_domain_va: 0xb7fac838

If I access the pointer returned above I obtain: 0xbfd38858 (very 
similar to domU guest address...). Perhaps I did not understand 
something, but I should not obtain 10?
Tnx in advance.

Best Regards

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