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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>
41 lines
1.7 KiB
Plaintext
41 lines
1.7 KiB
Plaintext
LC_ALL=C \
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PATH=/bin \
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HOME=/tmp/lib/domain--1-QEMUGuest1 \
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USER=test \
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LOGNAME=test \
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XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
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XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
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XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
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/usr/bin/qemu-system-x86_64 \
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-name guest=QEMUGuest1,debug-threads=on \
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-S \
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-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
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-machine pc-i440fx-5.2,usb=off,dump-guest-core=off \
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-accel kvm \
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-cpu qemu64 \
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-m size=2095104k,slots=16,maxmem=1099511627776k \
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-overcommit mem-lock=off \
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-smp 2,sockets=2,dies=1,cores=1,threads=1 \
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-object memory-backend-ram,id=ram-node0,size=2145386496 \
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-numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
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-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
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-display none \
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-no-user-config \
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-nodefaults \
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-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
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-mon chardev=charmonitor,id=monitor,mode=control \
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-rtc base=utc \
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-no-shutdown \
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-no-acpi \
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-boot strict=on \
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-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
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-object memory-backend-file,id=memvirtiopmem0,mem-path=/tmp/virtio_pmem,share=on,size=536870912 \
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-device virtio-pmem-pci,memdev=memvirtiopmem0,id=virtiopmem0,bus=pci.0,addr=0x5 \
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-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
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-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
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-device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
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-audiodev '{"id":"audio1","driver":"none"}' \
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-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
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-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
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-msg timestamp=on
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