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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>
43 lines
2.4 KiB
Plaintext
43 lines
2.4 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 '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/tmp/lib/domain--1-QEMUGuest1/master-key.aes"}' \
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-machine pc,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 214 \
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-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":224395264}' \
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-overcommit mem-lock=off \
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-smp 1,sockets=1,cores=1,threads=1 \
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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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-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
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-blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-3-storage"}' \
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-device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1,write-cache=on,werror=stop,rerror=stop \
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-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
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-blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
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-device ide-hd,bus=ide.0,unit=1,drive=libvirt-2-format,id=ide0-0-1,write-cache=on,werror=enospc \
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-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest3","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
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-blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
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-device ide-hd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,write-cache=on,werror=report,rerror=ignore \
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-audiodev '{"id":"audio1","driver":"none"}' \
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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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