>> How can one share memory (a few variables not necessarily a page)
>> between host/hypervisor and guest VM ?
>>
> If you use the -mem-path qemu option, all guest memory will be in a file on
> tmpfs.  You can mmap that file and access all guest memory.  Of course, this
> is hitting the problem with a fairly bit hammer; more refined approaches are
> possible.

Could you outline the other approaches ?

Thanks
arn
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