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9eb9106ea5
Add support for using the new approach to hotplug vcpus using device_add during startup of qemu to allow sparse vcpu topologies. There are a few limitations imposed by qemu on the supported configuration: - vcpu0 needs to be always present and not hotpluggable - non-hotpluggable cpus need to be ordered at the beginning - order of the vcpus needs to be unique for every single hotpluggable entity Qemu also doesn't really allow to query the information necessary to start a VM with the vcpus directly on the commandline. Fortunately they can be hotplugged during startup. The new hotplug code uses the following approach: - non-hotpluggable vcpus are counted and put to the -smp option - qemu is started - qemu is queried for the necessary information - the configuration is checked - the hotpluggable vcpus are hotplugged - vcpus are started This patch adds a lot of checking code and enables the support to specify the individual vcpu element with qemu.
21 lines
425 B
Plaintext
21 lines
425 B
Plaintext
LC_ALL=C \
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PATH=/bin \
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HOME=/home/test \
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USER=test \
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LOGNAME=test \
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QEMU_AUDIO_DRV=none \
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/usr/bin/qemu \
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-name QEMUGuest1 \
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-S \
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-M pc \
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-m 214 \
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-smp 1,maxcpus=6,sockets=3,cores=2,threads=1 \
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-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
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-nographic \
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-nodefaults \
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-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \
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-no-acpi \
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-boot n \
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-usb \
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-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
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