Hello,
I am setting up shared memory using grant tables between two hvm guests.
In the process of doing so, the function create_grant_host_mapping( uint64_t
addr, unsigned long frame, unsigned int flags) in mm.c is getting called to
create a mapping at the specified virtual addr (as specified by parameter addr
in the call) for the specified machine frame address (specified by parameter
frame).
But when the function returns the guest physical address gets changed to point
to the parameter value frame and the machine address of the virtual address
points to 0xffffffff.
Is it because this function-create_grant_host_mapping does not work for hvm
guests and i have to rewrite this function to use shadow page tables or is there
some other error??
What could be the problem??
Thanks
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