About Inter-process Communication

[ZhangEditing]

Hello.
 
I need to send megabytes of data from one virtual machine to another.
I looked into source code of IPC streams for C++, but did not find any facility for sending the content of a large buffer (say, 512B).
I have also noticed the buffer registers in the UTCB, but I haven't figured out how to use it.
 
If there is a way to send the content of a large buffer, would you please reference me to the related documents?
A simple example would be very helpful. 		 	   		  
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