Il 10/06/2014 10:30, Hu Tao ha scritto:
On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
+#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
how about naming it after what it really is? "memory-backend-hugepage"
Later we could split it into generic superclass mmap-ed
"memory-backend-file" and have TPH specific code moved into this backend.
OK.
Actually I don't think there's anything hugepage-specific in this backend
(except perhaps passing a path instead of a filename). It could be used
with a tmpfs backing storage like /dev/shm.
What's the point compared to memory-backend-ram?
That you can use shared memory, for example together with vhost-user.
Igor suggested memory-backend-file be compiled only for Linux. Does this mean
memory-backend-file shuold be compiled also for systems supporting tmpfs
or like?
Yes, I think it should be compiled on all POSIX systems. But it can be
done later.
Paolo