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 the latest master. v9: -use a callback to correct reset sequence for x86 -update apic mmio mapping 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 Chen Fan (2): apic: map APIC's MMIO region at each CPU's address space cpu/apic: drop icc bus/bridge Zhu Guihua (2): x86: use new method to correct reset sequence icc_bus: drop the unused files default-configs/i386-softmmu.mak | 1 - default-configs/x86_64-softmmu.mak | 1 - hw/cpu/Makefile.objs | 1 - hw/cpu/icc_bus.c | 118 ------------------------------------- hw/i386/pc.c | 43 +++++++------- hw/i386/pc_piix.c | 9 +-- hw/i386/pc_q35.c | 9 +-- hw/intc/apic_common.c | 11 +--- include/hw/cpu/icc_bus.h | 82 -------------------------- include/hw/i386/apic_internal.h | 7 ++- include/hw/i386/pc.h | 2 +- target-i386/cpu.c | 30 +++++++--- 12 files changed, 52 insertions(+), 262 deletions(-) delete mode 100644 hw/cpu/icc_bus.c delete mode 100644 include/hw/cpu/icc_bus.h -- 1.9.3