Re: [Qemu-devel] [QEMU PATCH v14 0/4] migration: migrate QTAILQ

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Jianjun Duan (duanj@linux.vnet.ibm.com) wrote:
> ping

Yes, hopefully this can go in right near the start of 2.9

Dave

> 
> On 11/23/2016 09:53 AM, Jianjun Duan wrote:
> > Hi all,
> > 
> >     I addressed some review comments. Comments are welcome.     
> > 
> > v14: - Fixed a return statement.
> > 
> > Previous versions are:
> > 
> > v13: - Changed some QTAILQ related macro names to match existing ones. 
> > (link: http://lists.nongnu.org/archive/html/qemu-ppc/2016-11/msg00226.html)
> > 
> > v12: - Fixed type for put_qtailq which caused build break.
> > (link: http://lists.gnu.org/archive/html/qemu-devel/2016-11/msg01328.html
> > 
> > v11: - Split error_report statements into a separate patch.
> >      - Changed the signature of put. It now returns int type.
> >      - Minor changes to QTAILQ macros. 
> >          
> > v10: - Fixed a typo.
> > (link: http://lists.nongnu.org/archive/html/qemu-ppc/2016-10/msg01206.html)
> > 
> > v9: - No more hard encoding of QTAILQ layout information
> > (link: http://lists.nongnu.org/archive/html/qemu-ppc/2016-10/msg01042.html)
> > 
> > v8: - Fixed a style issue. 
> > (link: http://lists.nongnu.org/archive/html/qemu-ppc/2016-10/msg00874.html)
> > 
> > v7: - Fixed merge errors.
> >     - Simplified macro definitions related to pointer arithmetic based QTAILQ access.
> >     - Added test case for QTAILQ migration in tests/test-vmstate.c.
> > (link: http://lists.nongnu.org/archive/html/qemu-ppc/2016-10/msg00711.html)
> > 
> > 
> > v6: - Split from Power specific patches. 
> >     - Dropped VMS_LINKED flag.
> >     - Rebased to master.
> >     - Added comments to clarify about put/get in VMStateInfo.  
> > (link: http://lists.nongnu.org/archive/html/qemu-ppc/2016-10/msg00336.html)
> > 
> > v5: - Rebased to David's ppc-for-2.8. 
> > (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-10/msg00270.html)
> > 
> > v4: - Introduce a way to set customized instance_id in SaveStateEntry. Use it
> >       to set instance_id for DRC using its unique index to address David 
> >       Gibson's concern.
> >     - Rename VMS_CSTM to VMS_LINKED based on Paolo Bonzini's suggestions.
> >     - Clean up qjson stuff in put_qtailq. 
> >     - Add trace for put_qtailq and get_qtailq based on David Gilbert's 
> >       suggestion.
> >     - Based on David's ppc-for-2.7. 
> > (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg07720.html)
> > 
> > v3: - Simplify overall design followng discussion with Paolo. No longer need
> >       metadata to migrate QTAILQ.
> >     - Extend VMStateInfo instead of adding similar fields to VMStateField.
> >     - Clean up macros in qemu/queue.h.
> > (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-05/msg05695.html)
> > 
> > v2: - Introduce a general approach to migrate QTAILQ in qemu/queue.h.
> >     - Migrate signalled field in the DRC state.
> >     - Put the newly added migrating fields in subsections so that backward 
> >       migration is not broken.  
> >     - Set detach_cb field right after migration so that a migrated hot-unplug
> >       event could finish its course.
> > (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-05/msg04188.html)
> > 
> > v1: - Inital version.
> > (link: https://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg02601.html)
> > 
> > 
> > Jianjun Duan (4):
> >   migration: extend VMStateInfo
> >   migration: migrate QTAILQ
> >   tests/migration: Add test for QTAILQ migration
> >   migration: add error_report
> > 
> >  hw/display/virtio-gpu.c     |   8 +-
> >  hw/intc/s390_flic_kvm.c     |   8 +-
> >  hw/net/vmxnet3.c            |  24 ++++--
> >  hw/nvram/eeprom93xx.c       |   8 +-
> >  hw/nvram/fw_cfg.c           |   8 +-
> >  hw/pci/msix.c               |   8 +-
> >  hw/pci/pci.c                |  16 +++-
> >  hw/pci/shpc.c               |   7 +-
> >  hw/scsi/scsi-bus.c          |   8 +-
> >  hw/timer/twl92230.c         |   8 +-
> >  hw/usb/redirect.c           |  26 +++++--
> >  hw/virtio/virtio-pci.c      |   8 +-
> >  hw/virtio/virtio.c          |  15 +++-
> >  include/migration/vmstate.h |  39 ++++++++--
> >  include/qemu/queue.h        |  60 +++++++++++++++
> >  migration/savevm.c          |   7 +-
> >  migration/trace-events      |   4 +
> >  migration/vmstate.c         | 184 +++++++++++++++++++++++++++++++++++---------
> >  target-alpha/machine.c      |   6 +-
> >  target-arm/machine.c        |  14 +++-
> >  target-i386/machine.c       |  26 +++++--
> >  target-mips/machine.c       |  14 +++-
> >  target-ppc/machine.c        |  12 ++-
> >  target-sparc/machine.c      |   6 +-
> >  tests/test-vmstate.c        | 160 ++++++++++++++++++++++++++++++++++++++
> >  25 files changed, 578 insertions(+), 106 deletions(-)
> > 
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK