xemu/hw/mem
Philippe Mathieu-Daudé be81ba6042 hw/mem/pc-dimm: Restrict NUMA-specific code to NUMA machines
When trying to use the pc-dimm device on a non-NUMA machine, we get:

  $ qemu-system-arm -M none -cpu max -S \
      -object memory-backend-file,id=mem1,size=1M,mem-path=/tmp/1m \
      -device pc-dimm,id=dimm1,memdev=mem1
  Segmentation fault (core dumped)

  (gdb) bt
  #0  pc_dimm_realize (dev=0x555556da3e90, errp=0x7fffffffcd10) at hw/mem/pc-dimm.c:184
  #1  0x0000555555fe1f8f in device_set_realized (obj=0x555556da3e90, value=true, errp=0x7fffffffce18) at hw/core/qdev.c:531
  #2  0x0000555555feb4a9 in property_set_bool (obj=0x555556da3e90, v=0x555556e54420, name=0x5555563c3c41 "realized", opaque=0x555556a704f0, errp=0x7fffffffce18) at qom/object.c:2257

To avoid that crash, restrict the pc-dimm NUMA check to machines
supporting NUMA, and do not allow the use of 'node' property on
non-NUMA machines.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211106145016.611332-1-f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-11 03:13:05 -05:00
..
Kconfig kconfig: split CONFIG_SPARSE_MEM from fuzzing 2021-10-14 09:50:56 +02:00
memory-device.c qapi: More complex uses of QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
meson.build kconfig: split CONFIG_SPARSE_MEM from fuzzing 2021-10-14 09:50:56 +02:00
npcm7xx_mc.c hw/*: Use type casting for SysBusDevice in NPCM7XX 2021-01-12 21:19:02 +00:00
nvdimm.c nvdimm: put it into the 'storage' category 2021-02-20 12:36:19 +01:00
pc-dimm.c hw/mem/pc-dimm: Restrict NUMA-specific code to NUMA machines 2021-11-11 03:13:05 -05:00
sparse-mem.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00