Re: [Qemu-devel] [RFC 05/29] postcopy: use UFFDIO_ZEROPAGE only when available

2017-07-12 Thread Dr. David Alan Gilbert
* Peter Xu (pet...@redhat.com) wrote: > On Wed, Jun 28, 2017 at 08:00:23PM +0100, Dr. David Alan Gilbert (git) wrote: > > From: "Dr. David Alan Gilbert" > > > > Use the recently added migration flag to hold whether > > each RAMBlock has the UFFDIO_ZEROPAGE capability, use it > > when it's availab

Re: [Qemu-devel] [RFC 05/29] postcopy: use UFFDIO_ZEROPAGE only when available

2017-07-10 Thread Peter Xu
On Wed, Jun 28, 2017 at 08:00:23PM +0100, Dr. David Alan Gilbert (git) wrote: > From: "Dr. David Alan Gilbert" > > Use the recently added migration flag to hold whether > each RAMBlock has the UFFDIO_ZEROPAGE capability, use it > when it's available. > > This allows the use of postcopy on tmpfs