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When -device is configured via JSON a bug [1] is triggered in qemu were the DEVICE_DELETED event for the removal of the device frontend is no longer delivered to libvirt. Without the DEVICE_DELETED event we don't remove the corresponding entries in the VM XML. Until qemu will be fixed we must stop using the JSON syntax for -device. This patch removes the detection of the capability. The capability is used only during startup of a fresh VM so we don't need to consider any compaitibility steps for existing VMs. For users who wish to use 'libvirt-7.9' and 'libvirt-7.10' with 'qemu-6.2' there are two possible workarounds: - filter out the 'device.json' qemu capability '/etc/libvirt/qemu.conf': capability_filters = [ "device.json" ] - filter out the 'device.json' qemu capability via qemu namespace XML: <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> [...] <qemu:capabilities> <qemu:del capability='device.json'/> </qemu:capabilities> </domain> We must never again use the same capability name as we are now instructing users to filter it as a workaround so once qemu is fixed we'll need to pick a new capability value for it. [1] https://bugzilla.redhat.com/show_bug.cgi?id=2036669 Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2035237 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ani Sinha <ani@anisinha.ca> Reviewed-by: Ján Tomko <jtomko@redhat.com>
59 lines
2.9 KiB
Plaintext
59 lines
2.9 KiB
Plaintext
LC_ALL=C \
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PATH=/bin \
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HOME=/tmp/lib/domain--1-guest \
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USER=test \
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LOGNAME=test \
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XDG_DATA_HOME=/tmp/lib/domain--1-guest/.local/share \
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XDG_CACHE_HOME=/tmp/lib/domain--1-guest/.cache \
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XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
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/usr/bin/qemu-system-x86_64 \
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-name guest=guest,debug-threads=on \
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-S \
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-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/tmp/lib/domain--1-guest/master-key.aes"}' \
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-machine q35,usb=off,dump-guest-core=off,memory-backend=pc.ram \
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-accel tcg \
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-cpu qemu64 \
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-m 4096 \
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-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":4294967296}' \
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-overcommit mem-lock=off \
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-smp 4,sockets=4,cores=1,threads=1 \
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-uuid 61288c03-0b0d-4f1e-9496-0f0256f2e013 \
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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,driftfix=slew \
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-global kvm-pit.lost_tick_policy=delay \
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-no-hpet \
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-no-shutdown \
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-global ICH9-LPC.disable_s3=1 \
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-global ICH9-LPC.disable_s4=1 \
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-boot strict=on \
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-device pcie-root-port,port=16,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x2 \
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-device pcie-root-port,port=17,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 \
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-device pcie-root-port,port=18,chassis=3,id=pci.3,bus=pcie.0,addr=0x2.0x2 \
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-device pcie-root-port,port=19,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x3 \
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-device pcie-root-port,port=20,chassis=5,id=pci.5,bus=pcie.0,addr=0x2.0x4 \
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-device pcie-root-port,port=21,chassis=6,id=pci.6,bus=pcie.0,addr=0x2.0x5 \
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-device pcie-root-port,port=22,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x6 \
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-device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.2,addr=0x0 \
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-device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 \
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-blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","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":"qcow2","file":"libvirt-1-storage"}' \
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-device virtio-blk-pci,bus=pci.4,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
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-netdev user,id=hostnet0 \
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-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:d2:70:0b,bus=pci.1,addr=0x0 \
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-chardev pty,id=charserial0 \
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-device isa-serial,chardev=charserial0,id=serial0 \
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-chardev socket,id=charchannel0,fd=1729,server=on,wait=off \
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-device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
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-device usb-tablet,id=input0,bus=usb.0,port=1 \
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-audiodev '{"id":"audio1","driver":"none"}' \
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-vnc 127.0.0.1:0,audiodev=audio1 \
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-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pcie.0,addr=0x1 \
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-device virtio-balloon-pci,id=balloon0,bus=pci.5,addr=0x0 \
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-object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
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-device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.6,addr=0x0 \
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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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