On Mon, Nov 04, 2019 at 09:47:53AM +0530, Bharata B Rao wrote: > KVM PPC module needs ksm_madvise() for supporting secure guests. > Guest pages that become secure are represented as device private > pages in the host. Such pages shouldn't participate in KSM merging. If we don't do the ksm_madvise call, then as far as I can tell, it should all still work correctly, but we might have KSM pulling pages in unnecessarily, causing a reduction in performance. Is that right? > Signed-off-by: Bharata B Rao <bharata@xxxxxxxxxxxxx> Acked-by: Paul Mackerras <paulus@xxxxxxxxxx>
