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Re: [Qemu-devel] [PATCH v7 17/42] Add migration-capability boolean for p
Re: [Qemu-devel] [PATCH v7 17/42] Add migration-capability boolean for postcopy-ram.
Wed, 15 Jul 2015 15:09:45 +0530
On (Tue) 16 Jun 2015 [16:58:17], Dr. David Alan Gilbert wrote:
> * Eric Blake (address@hidden) wrote:
> > On 06/16/2015 04:26 AM, Dr. David Alan Gilbert (git) wrote:
> > > From: "Dr. David Alan Gilbert" <address@hidden>
> > >
> > > The 'postcopy ram' capability allows postcopy migration of RAM;
> > > note that the migration starts off in precopy mode until
> > > postcopy mode is triggered (see the migrate_start_postcopy
> > > patch later in the series).
> > >
> > > Signed-off-by: Dr. David Alan Gilbert <address@hidden>
> > > ---
> > > include/migration/migration.h | 1 +
> > > migration/migration.c | 23 +++++++++++++++++++++++
> > > qapi-schema.json | 6 +++++-
> > > 3 files changed, 29 insertions(+), 1 deletion(-)
> > >
> > > +++ b/qapi-schema.json
> > > @@ -526,11 +526,15 @@
> > > # @auto-converge: If enabled, QEMU will automatically throttle down the
> > > guest
> > > # to speed up convergence of RAM migration. (since 1.6)
> > > #
> > > +# @x-postcopy-ram: Start executing on the migration target before all of
> > > RAM has
> > > +# been migrated, pulling the remaining pages along as needed.
> > > NOTE: If
> > > +# the migration fails during postcopy the VM will fail. (since
> > > 2.4)
> > Marking it experimental because it might change? Or is the interface
> > pretty stable, but you want more testing time to minimize bugs?
> It's easy enough to remove the x- once we're all happy; it seems pretty
> stable at the moment but when we're done I'll just submit a one liner to take
> the x-
We shouldn't mark it stable till we have a released kernel (which
freezes the kernel API for us).
We could pick this patchset without a released kernel, but this will
have to remain x- if that happens.
- Re: [Qemu-devel] [PATCH v7 17/42] Add migration-capability boolean for postcopy-ram.,
Amit Shah <=