[Qemu-devel] [PATCH v5 00/17] spapr: Add support for PHB hotplug

[Greg Kurz]

This allows to hotplug/unplug PHBs. I could successfully test:
- using in-kernel XICS, emulated XICS and XIVE
- hotplug/unplug with e1000 device to validate LSIs
- hotplug/unplug with virtio-net device to validate MSIs
- some simple migration scenarios

Based on David's ppc-for-4.0 branch SHA1:

6f585625d0d1 target/ppc: Basic POWER9 bare-metal radix MMU support

Please comment.

Changes in v5:
- all DRC subtypes generate FDT fragment at configure connector time
- Drop all the LSI bitmap and allocation/typing disintricate stuff
- set IRQ type in KVM at claim time
- fix hotplug call chain
- added PHB unplug test to tests/device-plug-test

Changes in v4:
- added a LSI bitmap to XICS
- no longer need compat property in XICS
- simplified the patches to access the name and the phandle of the
  interrupt controller
- delay the creation of the PHB drc->fdt to RTAS ibm,configure-connector

Change in v3:
- reworked phandle related code some more
- disintricate allocation/"type setting" of interrupts
- identify LSIs at machine init

Changes in v2:
- rebased on current ppc-for-4.0
- added some preliminary cleanup
- call unrealize from realize error path
- advertise PHB hotplug in last patch
- reworked phandle related code
- sync LSIs to KVM

--
Greg

---

Greg Kurz (11):
      spapr_drc: Allow FDT fragment to be added later
      spapr: Generate FDT fragment for LMBs at configure connector time
      spapr: Generate FDT fragment for CPUs at configure connector time
      spapr/pci: Generate FDT fragment at configure connector time
      spapr/drc: Drop spapr_drc_attach() fdt argument
      xics: Write source state to KVM at claim time
      spapr: Expose the name of the interrupt controller node
      spapr_irq: Expose the phandle of the interrupt controller
      spapr_pci: add PHB unrealize
      spapr: add hotplug hooks for PHB hotplug
      tests/device-plug: Add PHB unplug request test for spapr

Michael Roth (5):
      spapr: create DR connectors for PHBs
      spapr_events: add support for phb hotplug events
      spapr_pci: provide node start offset via spapr_populate_pci_dt()
      spapr_pci: add ibm, my-drc-index property for PHB hotplug
      spapr: enable PHB hotplug for default pseries machine type

Nathan Fontenot (1):
      spapr: populate PHB DRC entries for root DT node


 hw/intc/spapr_xive.c        |    9 +-
 hw/intc/xics.c              |    4 +
 hw/intc/xics_kvm.c          |   74 ++++++++-----
 hw/intc/xics_spapr.c        |    2 
 hw/ppc/spapr.c              |  238 +++++++++++++++++++++++++++++++++++--------
 hw/ppc/spapr_drc.c          |   51 ++++++++-
 hw/ppc/spapr_events.c       |    3 +
 hw/ppc/spapr_irq.c          |   42 +++++++-
 hw/ppc/spapr_pci.c          |  135 ++++++++++++++++++++----
 include/hw/pci-host/spapr.h |   11 ++
 include/hw/ppc/spapr.h      |   10 ++
 include/hw/ppc/spapr_drc.h  |   17 +++
 include/hw/ppc/spapr_irq.h  |    2 
 include/hw/ppc/spapr_xive.h |    3 +
 include/hw/ppc/xics.h       |    1 
 include/hw/ppc/xics_spapr.h |    2 
 tests/device-plug-test.c    |   16 +++
 17 files changed, 497 insertions(+), 123 deletions(-)