The first patches are a bunch of cleanups. I decided to go the
extra mile and implement CPU hotplug via "device_add", as well as
"query-hotpluggable-cpus".
On s390x, only complete cores can be plugged. CPU hot unplug is currently
not supported by the architecture.
Support for hotplugging CPUs in random core-id order (last two patches)
is added. We once hat a KVM bug preventing this, but the stable patch
should now be included in relevant places - 152e9f65d66f ("KVM: s390: fix
wrong lookup of VCPUs by array index"). Current tooling will plug them in
sequential order anyway, so it should not hurt.
v4 -> v5:
* Only moving code around, no conceptual changes.
* "s390x: allow only 1 CPU with TCG"
- Drop the ifdef stuff again.
* "s390x: implement query-hotpluggable-cpus"
- Don't move s390_cpu_addr2state(), we can clean that up later.
- Moved dropping "cpu_states" to next patch.
- Drop s390_find_cpu_slot().
* "s390x: get rid of cpu_states and use possible_cpus instead"
- Added as requested by Igor.
David Hildenbrand (22):
exec,dump,i386,ppc,s390x: don't include exec/cpu-all.h explicitly
cpu: drop old comments describing members
s390x: get rid of s390-virtio.c
s390x: rename s390-virtio.h to s390-virtio-hcall.h
s390x: move s390_virtio_hypercall() to s390-virtio-hcall.h
s390x: move subsystem_reset() to s390-virtio-ccw.h
target/s390x: move some s390x typedefs to cpu-qom.h
s390x: move sclp_service_call() to sclp.h
target/s390x: use trigger_pgm_exception() in
s390_cpu_handle_mmu_fault()
target/s390x: use program_interrupt() in per_check_exception()
s390x: allow only 1 CPU with TCG
target/s390x: set cpu->id for linux user when realizing
target/s390x: use "core-id" for cpu number/address/id handling
target/s390x: rename next_cpu_id to next_core_id
s390x: print CPU definitions in sorted order
s390x: allow cpu hotplug via device_add
s390x: CPU hot unplug via device_del cannot work for now
s390x: implement query-hotpluggable-cpus
s390x: get rid of cpu_states and use possible_cpus instead
s390x: get rid of cpu_s390x_create()
s390x: generate sclp cpu information from possible_cpus
s390x: allow CPU hotplug in random core-id order
dump.c | 1 -
exec.c | 1 -
hw/s390x/Makefile.objs | 1 -
hw/s390x/s390-virtio-ccw.c | 239 +++++++++++++++++++++++++++++++++++--
hw/s390x/s390-virtio-hcall.c | 2 +-
hw/s390x/s390-virtio-hcall.h | 21 ++++
hw/s390x/s390-virtio.c | 37 ------
hw/s390x/s390-virtio.h | 35 ------
hw/s390x/sclp.c | 34 +++---
include/hw/s390x/s390-virtio-ccw.h | 2 +
include/hw/s390x/sclp.h | 2 +
include/qom/cpu.h | 6 +-
qapi-schema.json | 16 +++
target/i386/arch_dump.c | 1 -
target/i386/arch_memory_mapping.c | 1 -
target/i386/svm_helper.c | 1 -
target/ppc/arch_dump.c | 1 -
target/s390x/arch_dump.c | 1 -
target/s390x/cpu-qom.h | 7 +-
target/s390x/cpu.c | 85 ++++---------
target/s390x/cpu.h | 13 +-
target/s390x/cpu_models.c | 58 ++++++---
target/s390x/cpu_models.h | 8 +-
target/s390x/diag.c | 1 +
target/s390x/excp_helper.c | 5 +-
target/s390x/helper.c | 47 +-------
target/s390x/internal.h | 1 -
target/s390x/kvm.c | 1 +
target/s390x/misc_helper.c | 21 ++--
target/s390x/translate.c | 5 +-
30 files changed, 388 insertions(+), 266 deletions(-)
create mode 100644 hw/s390x/s390-virtio-hcall.h
delete mode 100644 hw/s390x/s390-virtio.h
--
2.13.5