Via implementing ACPI standard methods _EJ0 in bios, after Guest OS hot remove
one vCPU, it is able to send a signal to QEMU, then QEMU could notify
the assigned vCPU of exiting. meanwhile, and intruduce the QOM command
'cpu-del' to remove
vCPU from QEMU itself.
this work is based on Andreas Färber's qom-cpu branch tree.
git://github.com/afaerber/qemu-cpu.git
this series patches must be used with seabios patch and KVM patch together.
for KVM patches:
http://comments.gmane.org/gmane.comp.emulators.kvm.devel/114347
for seabios patches:
http://comments.gmane.org/gmane.comp.emulators.qemu/230460
Chen Fan (10):
x86: move apic_state field from CPUX86State to X86CPU
apic: remove redundant variable 'apic_no' from apic_init_common()
apic: remove local_apics array and using CPU_FOREACH instead
x86: add x86_cpu_unrealizefn() for cpu apic remove
qmp: add 'cpu-del' command support
qom cpu: rename variable 'cpu_added_notifier' to
'cpu_hotplug_notifier'
qom cpu: add UNPLUG cpu notifier support
i386: implement pc interface pc_hot_del_cpu()
piix4: implement function cpu_status_write() for vcpu ejection
cpus: reclaim allocated vCPU objects
cpu-exec.c | 2 +-
cpus.c | 51 ++++++++++++++++++++++++--
hw/acpi/piix4.c | 66 +++++++++++++++++++++++++++------
hw/i386/kvm/apic.c | 8 ++++
hw/i386/kvmvapic.c | 8 ++--
hw/i386/pc.c | 51 +++++++++++++++++++++-----
hw/i386/pc_piix.c | 1 +
hw/intc/apic.c | 81 ++++++++++++++++++++---------------------
hw/intc/apic_common.c | 6 +--
include/hw/boards.h | 2 +
include/hw/i386/apic_internal.h | 2 -
include/hw/i386/pc.h | 1 +
include/qom/cpu.h | 20 ++++++++++
include/sysemu/kvm.h | 1 +
include/sysemu/sysemu.h | 2 +-
kvm-all.c | 25 +++++++++++++
qapi-schema.json | 12 ++++++
qmp-commands.hx | 23 ++++++++++++
qmp.c | 9 +++++
qom/cpu.c | 26 ++++++++++---
target-i386/cpu-qom.h | 5 +++
target-i386/cpu.c | 57 +++++++++++++++++++++++------
target-i386/cpu.h | 4 --
target-i386/helper.c | 9 ++---
target-i386/kvm.c | 23 +++++-------
target-i386/misc_helper.c | 8 ++--
26 files changed, 380 insertions(+), 123 deletions(-)
--
1.8.1.4
