[Qemu-devel] [PATCH v6 0/5] ARM: Add NUMA support for machine virt

[Shannon Zhao]

From: Shannon Zhao <address@hidden>

Add NUMA support for machine virt. Tested successfully running a guest
Linux kernel with the following patch applied:

- [PATCH v16 0/6] arm64, numa: Add numa support for arm64 platforms
https://lkml.org/lkml/2016/4/8/571
- [PATCH v5 00/14] ACPI NUMA support for ARM64
https://lkml.org/lkml/2016/4/19/852

Example qemu command line:
qemu-system-aarch64 \
    -enable-kvm -smp 4\
    -kernel Image \
    -m 512 -machine virt,kernel_irqchip=on \
    -initrd guestfs.cpio.gz \
    -cpu host -nographic \
    -numa node,mem=256M,cpus=0-1,nodeid=0 \
    -numa node,mem=256M,cpus=2-3,nodeid=1 \
    -append "console=ttyAMA0 root=/dev/ram"

Changes since v5:
* don't generate /distance-map node since it's optional
* improve the /memory node name
* move acpi_build_srat_memory to common place then reuse it to generate
  SRAT table

Changes since v4:
* rebased on new kernel driver and device bindings, especially the
  compatible string "numa-distance-map-v1" of /distance-map node
* set the numa-node-id for first /memory node

Changes since v3:
* based on new kernel driver and device bindings
* add ACPI part

Changes since v2:
* update to use NUMA node property arm,associativity.

Changes since v1:
Take into account Peter's comments:
* rename virt_memory_init to arm_generate_memory_dtb
* move arm_generate_memory_dtb to boot.c and make it a common func
* use a struct numa_map to generate numa dtb

Shannon Zhao (5):
  ARM: Virt: Set numa-node-id for CPUs
  ARM: Add numa-node-id for /memory node
  ACPI: Add GICC Affinity Structure
  ACPI: move acpi_build_srat_memory to common place
  ACPI: Virt: Generate SRAT table

 hw/acpi/aml-build.c         | 12 +++++++++++
 hw/arm/boot.c               | 43 +++++++++++++++++++++++++++++++------
 hw/arm/virt-acpi-build.c    | 52 +++++++++++++++++++++++++++++++++++++++++++++
 hw/arm/virt.c               |  8 +++++++
 hw/i386/acpi-build.c        | 22 +------------------
 include/hw/acpi/acpi-defs.h | 15 ++++++++++++-
 include/hw/acpi/aml-build.h | 10 +++++++++
 7 files changed, 134 insertions(+), 28 deletions(-)

-- 
2.0.4