Series is prerequsite split of from NUMA cpu mapping
refactoring and includes only possible_cpus[] generalization
to make it reusable for SPAPR and virt-arm targets as
has been requested by Eduardo [1].
Since virt-arm doesn't support -device based CPUs, ARM
patches are not included here and will be posted separately as
'hw/arm/virt: -device cpu support'
series with dependency on this series.
This series doesn't include any of NUMA refactoring patches,
which will be posted on top once SPAPR and virt-arm would use
possible_cpus[].
Hence goal of this series is to make x86 specific possible_cpus[]
more generic, move it to MachineState and reuse it in SPAPR
machine so we could use it as common storage for topology
information when parsing -smp/-numa and then follow
the same/similar CPU creation pattern across the affected targets.
As result of this series:
* possible_cpus[] becomes part of MachineState
* SPAPR machine reuses it for persistent topololy storage
and core bookkeeping
* target specific query_hotpluggable_cpus() callbacks are
generalized into common machine_query_hotpluggable_cpus()
Series depends on:
[PATCH 0/3] spapr: fix cpu core hotunplug call flow
https://www.mail-archive.com/[email protected]/msg427214.html
which is staged for next pull req in SPAPR tree.
git tree for testing:
[email protected]:imammedo/qemu.git unify_poissible_cpus_v1
Regression tested CPU hotplug with ppc fedora25 guest on ppc host
with kvm enabled.
1) "[RFC 00/13] numa: add '-numa cpu' option"
https://www.mail-archive.com/[email protected]/msg423883.html
CC: David Gibson <[email protected]> (supporter:sPAPR)
CC: Alexander Graf <[email protected]> (supporter:sPAPR)
CC: [email protected]
CC: Bharata B Rao <[email protected]>
CC: [email protected]
CC: [email protected]
CC: Marcel Apfelbaum <[email protected]>
Igor Mammedov (7):
machine: move possible_cpus to MachineState
pc: move pcms->possible_cpus init out of pc_cpus_init()
pc: calculate topology only once when possible_cpus is initialised
pc: pass apic_id to pc_find_cpu_slot() directly so lookup could be
done without CPU object
change CPUArchId.cpu type to Object*
spapr: reuse machine->possible_cpus instead of cores[]
machine: unify [pc_|spapr_]query_hotpluggable_cpus() callbacks
include/hw/boards.h | 8 +++-
include/hw/i386/pc.h | 1 -
include/hw/ppc/spapr.h | 1 -
hw/acpi/cpu.c | 2 +-
hw/core/machine.c | 31 +++++++++++++
hw/i386/pc.c | 124 +++++++++++++++++++++----------------------------
hw/ppc/spapr.c | 117 +++++++++++++++++++++++++++-------------------
7 files changed, 162 insertions(+), 122 deletions(-)
--
2.7.4
