Re: [Qemu-devel] [PATCH 2/2] migration/postcopy: Explicitly disallow huge pages

2016-10-05 Thread Juan Quintela
"Daniel P. Berrange" wrote: > On Thu, Sep 29, 2016 at 08:09:38PM +0100, Dr. David Alan Gilbert (git) wrote: >> From: "Dr. David Alan Gilbert" >> >> At the moment postcopy will fail as soon as qemu tries to register >> userfault on the RAMBlock pages

Re: [Qemu-devel] [PATCH 2/2] migration/postcopy: Explicitly disallow huge pages

2016-10-05 Thread Dr. David Alan Gilbert
* Daniel P. Berrange (berra...@redhat.com) wrote: > On Thu, Sep 29, 2016 at 08:09:38PM +0100, Dr. David Alan Gilbert (git) wrote: > > From: "Dr. David Alan Gilbert" > > > > At the moment postcopy will fail as soon as qemu tries to register > > userfault on the RAMBlock pages

Re: [Qemu-devel] [PATCH 2/2] migration/postcopy: Explicitly disallow huge pages

2016-09-30 Thread Daniel P. Berrange
On Thu, Sep 29, 2016 at 08:09:38PM +0100, Dr. David Alan Gilbert (git) wrote: > From: "Dr. David Alan Gilbert" > > At the moment postcopy will fail as soon as qemu tries to register > userfault on the RAMBlock pages that are backed by hugepages. > However, the kernel is

[Qemu-devel] [PATCH 2/2] migration/postcopy: Explicitly disallow huge pages

2016-09-29 Thread Dr. David Alan Gilbert (git)
From: "Dr. David Alan Gilbert" At the moment postcopy will fail as soon as qemu tries to register userfault on the RAMBlock pages that are backed by hugepages. However, the kernel is going to get userfault support for hugepage at some point, and we've not got the rest of the