[v5,0/5] RISC-V multi-socket support

Message

Anup Patel May 29, 2020, 11:46 a.m. UTC

This series adds multi-socket support for RISC-V virt machine and
RISC-V spike machine. The multi-socket support will help us improve
various RISC-V operating systems, firmwares, and bootloader to
support RISC-V NUMA systems.

These patch can be found in riscv_multi_socket_v5 branch at:
https://github.com/avpatel/qemu.git

To try this patches, we will need: Linux multi-PLIC improvements
support which can be found in plic_imp_v2 branch at:
https://github.com/avpatel/linux.git

Changes since v4:
 - Re-arrange patches and move CLINT and PLIC patches before other
   patches because these are already reviewed
 - Added PATCH3 for common RISC-V multi-socket helpers
 - Added support for "-numa cpu,node-id" option in PATCH4 and PATCH5

Changes since v3:
 - Use "-numa" QEMU options to populate sockets instead of custom
   "multi-socket" sub-option in machine name

Changes since v2:
 - Dropped PATCH1 as it is not required any more
 - Added "multi-socket" sub-option for Spike and Virt machine
   which can be used to enable/disable mult-socket support

Changes since v1:
 - Fixed checkpatch errors and warnings
 - Added PATCH1 for knowning whether "sockets" sub-option was specified
 - Remove SPIKE_CPUS_PER_SOCKET_MIN and SPIKE_CPUS_PER_SOCKET_MAX in PATCH3
 - Remove VIRT_CPUS_PER_SOCKET_MIN and VIRT_CPUS_PER_SOCKET_MAX in PATCH5

Anup Patel (5):
  hw/riscv: Allow creating multiple instances of CLINT
  hw/riscv: Allow creating multiple instances of PLIC
  hw/riscv: Add helpers for RISC-V multi-socket NUMA machines
  hw/riscv: spike: Allow creating multiple NUMA sockets
  hw/riscv: virt: Allow creating multiple NUMA sockets

 hw/riscv/Makefile.objs          |   1 +
 hw/riscv/numa.c                 | 242 +++++++++++++++
 hw/riscv/sifive_clint.c         |  20 +-
 hw/riscv/sifive_e.c             |   4 +-
 hw/riscv/sifive_plic.c          |  24 +-
 hw/riscv/sifive_u.c             |   4 +-
 hw/riscv/spike.c                | 272 ++++++++++------
 hw/riscv/virt.c                 | 530 ++++++++++++++++++--------------
 include/hw/riscv/numa.h         |  51 +++
 include/hw/riscv/sifive_clint.h |   7 +-
 include/hw/riscv/sifive_plic.h  |  12 +-
 include/hw/riscv/spike.h        |  11 +-
 include/hw/riscv/virt.h         |   9 +-
 13 files changed, 831 insertions(+), 356 deletions(-)
 create mode 100644 hw/riscv/numa.c
 create mode 100644 include/hw/riscv/numa.h