[Qemu-devel] [PATCH v8 0/4] remove icc bus/bridge

[Zhu Guihua]

ICC Bus was used for providing a hotpluggable bus for APIC and CPU,
but now we use HotplugHandler to make hotplug. So ICC Bus is
unnecessary.

This code has passed the new pc-cpu-test.
And I have tested with kvm along with kernel_irqchip=on/off,
it works fine.

This patch series is based on Eduardo's x86 tree.
https://github.com/ehabkost/qemu.git

v8:
 -add a wrapper to specify reset order

v7:
 -update to register reset handler for main_system_bus when created
 -register reset handler for apic after all devices are initialized

v6:
 -reword commit message
 -drop NULL check for APIC device
 -use C cast instead of QOM cast

v5:
 -convert DEVICE() casts to C casts
 -use a local variable instead of doing the cast inline twice
 -drop to set cpu's parent bus
 -rename patch 3's subject
 -fix a bug about setting cpu's apic base

v4:
 -add wrapper to get root memory region from address space
 -set cpu apic base's default value in x86_cpu_apic_create()
 -drop NULL check for cpu apic_state
 -put drop of the unused files about icc_bus into a seprate patch
 -put DEVICE() casts into a seprate patch

v3:
 -replace init apic by object_new()
 -add reset apic at the time of CPU reset

Chen Fan (2):
  apic: map APIC's MMIO region at each CPU's address space
  cpu/apic: drop icc bus/bridge

Zhu Guihua (2):
  hw: add a wrapper for registering reset handler
  icc_bus: drop the unused files

 default-configs/i386-softmmu.mak   |   1 -
 default-configs/x86_64-softmmu.mak |   1 -
 exec.c                             |   5 ++
 hw/cpu/Makefile.objs               |   1 -
 hw/cpu/icc_bus.c                   | 118 -------------------------------------
 hw/i386/pc.c                       |  31 +++-------
 hw/i386/pc_piix.c                  |   9 +--
 hw/i386/pc_q35.c                   |   9 +--
 hw/intc/apic_common.c              |  19 +++---
 include/exec/memory.h              |   5 ++
 include/hw/cpu/icc_bus.h           |  82 --------------------------
 include/hw/hw.h                    |   4 ++
 include/hw/i386/apic_internal.h    |   7 ++-
 include/hw/i386/pc.h               |   2 +-
 target-i386/cpu.c                  |  25 +++++---
 target-i386/cpu.h                  |   4 ++
 vl.c                               |  18 +++++-
 17 files changed, 78 insertions(+), 263 deletions(-)
 delete mode 100644 hw/cpu/icc_bus.c
 delete mode 100644 include/hw/cpu/icc_bus.h

-- 
1.9.3