This patch set in combination with its kernel kvm patch set proposes an implementation of S390 cpu models. The origin of this item is to provide a means for management interfaces like libvirt to draw decisions if life guest migration to a target hypervisor is reasonable. A migration constraint is that a target hypervisor is capable to run a guest with the same S390 cpu model as the source hypervisor does. To verify this condition, the administration interface employes the existing QMP command "query-cpu-definitions" which returns a list of all currently supported S390 cpu models of a given host system. Together with the newly defined QMP command "query-cpu-model", which returns the current active S390 cpu model of a guest, a conclusion can be drawn if a migration is possible. A S390 cpu model is defined as a triple of machine type, cpu facility set and IBC value. Each historic, current and future triple receives a name composed of the machine type and its general availability counter. This name forms the cpu model name (e.g.: "2817-GA2".) With means of the Instruction Blocking Control feature (IBC), the instruction set available to a given guest is limitable. Michael Mueller (10): QEMU: introduce function cpudesc_avail QEMU: s390: cpu model cpu class definition QEMU: s390: cpu model facilities support QEMU: s390: cpu model alias support s390: update linux-headers for kvm VM device attributes QEMU: s390: cpu model kvm VM attr interface routines QEMU: s390: cpu model class initialization QEMU: s390: cpu model QMP query-cpu-definitions QEMU: s390: cpu model QMP query-cpu-model QEMU: s390: cpu model enablement arch_init.c | 8 + hw/s390x/s390-virtio-ccw.c | 2 + hw/s390x/s390-virtio.c | 104 ++++++++ hw/s390x/s390-virtio.h | 1 + include/sysemu/arch_init.h | 2 + linux-headers/asm-s390/kvm.h | 26 ++ linux-headers/linux/kvm.h | 1 + qapi-schema.json | 23 ++ qmp-commands.hx | 6 + qmp.c | 5 + stubs/Makefile.objs | 1 + stubs/arch-query-cpu-mod.c | 9 + target-s390x/Makefile.objs | 1 + target-s390x/cpu-models.c | 586 +++++++++++++++++++++++++++++++++++++++++++ target-s390x/cpu-models.h | 362 ++++++++++++++++++++++++++ target-s390x/cpu-qom.h | 22 ++ target-s390x/cpu.c | 171 ++++++++++++- target-s390x/cpu.h | 3 + target-s390x/kvm.c | 66 +++++ vl.c | 2 +- 20 files changed, 1395 insertions(+), 6 deletions(-) create mode 100644 stubs/arch-query-cpu-mod.c create mode 100644 target-s390x/cpu-models.c create mode 100644 target-s390x/cpu-models.h -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
