Re: [libvirt] [PATCH v2 82/86] numa: forbid '-numa node, mem' for 5.0 and newer machine types

[Michal Privoznik]

On 1/15/20 5:52 PM, Igor Mammedov wrote:
> On Wed, 15 Jan 2020 16:34:53 +0100
> Peter Krempa <address@hidden> wrote:
>
> > On Wed, Jan 15, 2020 at 16:07:37 +0100, Igor Mammedov wrote:
> > > Deprecation period is ran out and it's a time to flip the switch
> > > introduced by cd5ff8333a.
> > > Disable legacy option for new machine types and amend documentation.
> > >
> > > Signed-off-by: Igor Mammedov <address@hidden>
> > > ---
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > CC: address@hidden
> > > ---
> > >   hw/arm/virt.c        |  2 +-
> > >   hw/core/numa.c       |  6 ++++++
> > >   hw/i386/pc.c         |  1 -
> > >   hw/i386/pc_piix.c    |  1 +
> > >   hw/i386/pc_q35.c     |  1 +
> > >   hw/ppc/spapr.c       |  2 +-
> > >   qemu-deprecated.texi | 16 ----------------
> > >   qemu-options.hx      |  8 ++++----
> > >   8 files changed, 14 insertions(+), 23 deletions(-)
> >
> > I'm afraid nobody bothered to fix it yet:
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=1783355
>
> It's time to start working on it :)
> (looks like just deprecating stuff isn't sufficient motivation,
> maybe actual switch flipping would work out better)

So how was the upgrade from older to newer version resolved? I mean, if 
the old qemu used -numa node,mem=XXX and it is migrated to a host with 
newer qemu, the cmd line can't be switched to -numa node,memdev=node0, 
can it? I'm asking because I've just started working on this.

Michal