Hi,

I have a question on VRING_DESC_F_WRITE flag.  As per the specifications, if 
this flag is set, then the corresponding buffer pointed by the descriptor is 
Write only, otherwise Read Only.  I am trying to understand why there is no 
READ_AND_WRITE option, i.e. a buffer could be Read by device emulation and 
written back into.

Is there any issue or concern because of which it was not considered?

If this is not the right mailing list to raise this question,  any pointers 
would help.

Thanks,
Subha

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