Implements alternative way for hot-adding CPU using cpu_set QMP command, wich could be useful until it would be possible to add CPUs via device_add.
Patches 1-10 are common to both approaches 11-12 are specific to adding CPU using cpu_set To hot-add CPU use following command from qmp-shell: cpu_set in=[apic id] status=online git tree for testing: https://github.com/imammedo/qemu/tree/cpu_set Igor Mammedov (12): target-i386: consolidate error propagation in x86_cpu_realizefn() target-i386: split APIC creation from initialization in x86_cpu_realizefn() target-i386: split out CPU creation and features parsing into cpu_x86_create() target-i386: introduce apic-id property target-i386: push hot-plugged VCPU state to KVM and unstop it target-i386: replace FROM_SYSBUS() with QOM type cast target-i386: Add ICC_BUS and attach apic, kvmvapic and cpu to it introduce CPU hot-plug notifier rtc: update rtc_cmos on CPU hot-plug acpi_piix4: add infrastructure to send CPU hot-plug GPE to guest qmp: add cpu_set qmp command target-i386: implement CPU hot-add cpus.c | 11 ++- hw/acpi_piix4.c | 107 ++++++++++++++++++++- hw/apic_common.c | 14 ++- hw/apic_internal.h | 6 +- hw/i386/Makefile.objs | 2 +- hw/i386/kvmvapic.c | 22 +++-- hw/i386/pc.c | 47 +++++++++- hw/icc_bus.c | 75 ++++++++++++++ hw/icc_bus.h | 47 +++++++++ hw/mc146818rtc.c | 12 +++ include/sysemu/cpus.h | 3 + include/sysemu/sysemu.h | 6 + qapi-schema.json | 9 ++ qmp-commands.hx | 26 +++++ qmp.c | 12 +++ stubs/Makefile.objs | 4 + stubs/do_cpu_hot_add.c | 7 ++ stubs/get_icc_bus.c | 6 + stubs/qemu_system_cpu_hotplug_request.c | 5 + stubs/resume_vcpu.c | 6 + target-i386/cpu.c | 164 ++++++++++++++++++++++++++----- target-i386/cpu.h | 3 + vl.c | 14 +++ 23 files changed, 561 insertions(+), 47 deletions(-) create mode 100644 hw/icc_bus.c create mode 100644 hw/icc_bus.h create mode 100644 stubs/do_cpu_hot_add.c create mode 100644 stubs/get_icc_bus.c create mode 100644 stubs/qemu_system_cpu_hotplug_request.c create mode 100644 stubs/resume_vcpu.c