>> AFAIKs, the guest could inflate/deflate (esp. temporarily) and >> communicate via "actual" the actual balloon size as he sees it. > > OK so you want hinted but unused pages counted, and reported > in "actual"? That's a vmexit before each page use ... No, not at all. I rather meant, that it is unclear how inflation/deflation requests and "actual" *could* interact. Especially if we would consider free page reporting as some way of inflation (+immediate deflation) triggered by the guest. IMHO, we would not touch "actual" in that case. But as I said, I am totally fine with keeping it as is in this patch. IOW not glue free page reporting to inflation/deflation but let it act like something different with its own semantics (and document these properly). -- Thanks, David / dhildenb
