libvirt/tests/qemuxml2argvdata/memory-hotplug-nvdimm-ppc64.args
Michal Privoznik af23241cfe qemu_command: Generate memory only after controllers
Currently, memory device (def->mems) part of cmd line is
generated before any controller. In majority of cases it doesn't
matter because neither of memory devices live on a bus that's
created by an exposed controller (e.g. there's no DIMM
controller, at least not exposed). Except for virtio-mem and
virtio-pmem, which do have a PCI address. And if it so happens
that the device goes onto non-default bus (pci.0) starting such
guest fails, because the controller that creates the desired bus
wasn't processed yet. QEMU processes arguments in order.

For instance, if virtio-mem has address with bus='0x01' QEMU
refuses to start with the following message:

  Bus 'pci.1' not found

Similarly for virtio-pmem. I've successfully tested migration and
changing the order does not affect migration stream.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2047271
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2022-02-02 14:22:47 +01:00

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LC_ALL=C \
PATH=/bin \
HOME=/tmp/lib/domain--1-QEMUGuest1 \
USER=test \
LOGNAME=test \
XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-ppc64 \
-name guest=QEMUGuest1,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pseries,usb=off,dump-guest-core=off,nvdimm=on \
-accel tcg \
-m size=1048576k,slots=16,maxmem=1099511627776k \
-realtime mlock=off \
-smp 2,sockets=2,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=1024 \
-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-boot strict=on \
-object memory-backend-file,id=memnvdimm0,mem-path=/tmp/nvdimm,prealloc=on,size=537001984 \
-device nvdimm,node=0,label-size=131072,uuid=49545eb3-75e1-2d0a-acdd-f0294406c99e,memdev=memnvdimm0,id=nvdimm0,slot=0 \
-msg timestamp=on