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[Qemu-devel] [RFC 0/8] bus-less device hotplug
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [RFC 0/8] bus-less device hotplug |
Date: |
Thu, 20 Mar 2014 16:01:08 +0100 |
This series is a excerpt from memory hotplug series, posted
for getting an opinion on hotplug implementation for bus-less
devices using link<>s as a means to provide connection
between hotplugged device and hotplug controller that performs
board specific actions that hot-added device ishould not be aware of.
Patches implementing link<> based hotplug are:
qdev: link based hotplug
pc: preallocate hotplug links for DIMMDevices
...
pc: make PC_MACHINE memory hotplug controller
the rest is just an environment to make above work.
compile-able WIP tree is available at:
https://github.com/imammedo/qemu/commits/memory-hotplug-v8
way to test:
- run:
x86_64-softmmu/qemu-system-x86_64 -monitor stdio -object
memory-ram,id=foo,size=1G -m 1G,slots=1,maxmem=2G
- in monitor execute:
(qemu) device_add dimm,id=dimm1,memdev=foo
(qemu) info mtree
there should be "foo" memory region under "hotplug-memory" container.
Igor Mammedov (7):
vl.c: extend -m option to support options for memory hotplug
make machine_class_init() accessible outside of vl.c
pc: prepare PC for custom machine state
qdev: link based hotplug
pc: preallocate hotplug links for DIMMDevices
pc: initialize memory hotplug address space
pc: make PC_MACHINE memory hotplug controller
Vasilis Liaskovitis (1):
dimm: implement dimm device abstraction
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/core/hotplug.c | 30 +++++++++++
hw/core/machine.c | 7 +++
hw/core/qdev.c | 15 +++++
hw/i386/pc.c | 95 +++++++++++++++++++++++++++++++++-
hw/i386/pc_piix.c | 34 ++++++------
hw/i386/pc_q35.c | 10 ++--
hw/mem/Makefile.objs | 1 +
hw/mem/dimm.c | 100 ++++++++++++++++++++++++++++++++++++
include/hw/boards.h | 4 ++
include/hw/hotplug.h | 2 +
include/hw/i386/pc.h | 23 ++++++++
include/hw/mem/dimm.h | 58 +++++++++++++++++++++
include/hw/qdev-core.h | 6 ++
qemu-options.hx | 9 ++-
vl.c | 58 ++++++++++++++++++---
18 files changed, 421 insertions(+), 34 deletions(-)
create mode 100644 hw/mem/Makefile.objs
create mode 100644 hw/mem/dimm.c
create mode 100644 include/hw/mem/dimm.h
- [Qemu-devel] [RFC 0/8] bus-less device hotplug,
Igor Mammedov <=