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[Qemu-devel] [PATCH v4 0/8] ARM virt: ACPI memory hotplug support
From: |
Shameer Kolothum |
Subject: |
[Qemu-devel] [PATCH v4 0/8] ARM virt: ACPI memory hotplug support |
Date: |
Tue, 9 Apr 2019 11:29:27 +0100 |
This series is an attempt to provide device memory hotplug support
on ARM virt platform. This is based on Eric's recent works here[1]
and carries some of the pc-dimm related patches dropped from his
series.
The kernel support for arm64 memory hot add was added recently by
Robin and hence the guest kernel should be => 5.0-rc1.
NVDIM support is not included currently as we still have an unresolved
issue while hot adding NVDIMM[2]. However NVDIMM cold plug patches
can be included, but not done for now, for keeping it simple.
This makes use of GED device to sent hotplug ACPI events to the
Guest. GED code is based on Nemu. Thanks to the efforts of Samuel and
Sebastien to add the hardware-reduced support to Nemu using GED
device[3]. (Please shout if I got the author/signed-off wrong for
those patches or missed any names).
This is sanity tested on a HiSilicon ARM64 platform and appreciate
any further testing.
Thanks,
Shameer
[1] https://patchwork.kernel.org/cover/10837565/
[2] https://patchwork.kernel.org/cover/10783589/
[3] https://github.com/intel/nemu/blob/topic/virt-x86/hw/acpi/ged.c
v3 --> v4
Addressed comments from Igor and Eric,
-Renamed "virt-acpi" to "acpi-ged".
-Changed ged device parent to TYPE_DEVICE.
-Introduced DT memory node property "hotpluggable" to resolve device
memory being treated as early boot memory issue(patch #7).
-Combined patches #3 and #9 from v3 into #3.
v2 --> v3
Addressed comments from Igor and Eric,
-Made virt acpi device platform independent and moved
to hw/acpi/generic_event_device.c
-Moved ged specific code into hw/acpi/generic_event_device.c
-Introduced an opt-in feature "fdt" to resolve device-memory being
treated as early boot memory.
-Dropped patch #1 from v2.
RFC --> v2
-Use GED device instead of GPIO for ACPI hotplug events.
-Removed NVDIMM support for now.
-Includes dropped patches from Eric's v9 series.
Eric Auger (1):
hw/arm/virt: Add memory hotplug framework
Samuel Ortiz (2):
hw/acpi: Do not create memory hotplug method when handler is not
defined
hw/acpi: Add ACPI Generic Event Device Support
Shameer Kolothum (5):
hw/acpi: Make ACPI IO address space configurable
hw/arm/virt: Enable device memory cold/hot plug with ACPI boot
hw/arm/virt-acpi-build: Add PC-DIMM in SRAT
hw/arm/boot: Add "hotpluggable" property to DT memory node
hw/arm/boot: Expose the PC-DIMM nodes in the DT
default-configs/arm-softmmu.mak | 5 +
hw/acpi/Kconfig | 4 +
hw/acpi/Makefile.objs | 1 +
hw/acpi/generic_event_device.c | 311 +++++++++++++++++++++++++++++++++
hw/acpi/memory_hotplug.c | 35 ++--
hw/arm/boot.c | 64 ++++++-
hw/arm/virt-acpi-build.c | 18 ++
hw/arm/virt.c | 102 ++++++++++-
hw/i386/acpi-build.c | 3 +-
include/hw/acpi/generic_event_device.h | 121 +++++++++++++
include/hw/acpi/memory_hotplug.h | 9 +-
include/hw/arm/virt.h | 4 +
12 files changed, 654 insertions(+), 23 deletions(-)
create mode 100644 hw/acpi/generic_event_device.c
create mode 100644 include/hw/acpi/generic_event_device.h
--
2.7.4
- [Qemu-devel] [PATCH v4 0/8] ARM virt: ACPI memory hotplug support,
Shameer Kolothum <=
- [Qemu-devel] [PATCH v4 1/8] hw/acpi: Make ACPI IO address space configurable, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 2/8] hw/acpi: Do not create memory hotplug method when handler is not defined, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 3/8] hw/acpi: Add ACPI Generic Event Device Support, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 4/8] hw/arm/virt: Add memory hotplug framework, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 5/8] hw/arm/virt: Enable device memory cold/hot plug with ACPI boot, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 6/8] hw/arm/virt-acpi-build: Add PC-DIMM in SRAT, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 7/8] hw/arm/boot: Add "hotpluggable" property to DT memory node, Shameer Kolothum, 2019/04/09
- [Qemu-devel] [PATCH v4 8/8] hw/arm/boot: Expose the PC-DIMM nodes in the DT, Shameer Kolothum, 2019/04/09