> Maybe it is my absolute lack of familiarity with what the host actually > does with balloon pages but I fail to see why the above matters at all. > ksm will not try to merge sub page units (4k for hugetlb or a large base > page). And if you need to hide the guest contents then the host can > clear the respective subpage just fine. So could you be more explicit > why MADV_DONTNEED matters at all? Also does any host actually share sub > pages between different guests? This sounds like a bad idea to me in > general. > Okay, I think I got the issue wrong. I thought that the original patch tried to also fix a corner case where the guest would assume that it would get supplied zero pages afterwards. Please ignore the noise. :) -- Thanks, David _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
