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If a Q35 domain has huge number of vCPUS (over 255, currently), then it needs IOMMU with Extended Interrupt Mode enabled (see check in qemuValidateDomainVCpuTopology()). Well, we already add some devices and to other tricks when parsing new domain XML. Might as well add IOMMU device if above condition is met. Resolves: https://issues.redhat.com/browse/RHEL-65844 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
35 lines
1.1 KiB
XML
35 lines
1.1 KiB
XML
<domain type='kvm'>
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<name>QEMUGuest1</name>
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<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
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<memory unit='KiB'>219100</memory>
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<currentMemory unit='KiB'>219100</currentMemory>
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<vcpu placement='static'>288</vcpu>
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<os>
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<type arch='x86_64' machine='q35'>hvm</type>
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<boot dev='hd'/>
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</os>
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<features>
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<ioapic driver='qemu'/>
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</features>
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<cpu mode='custom' match='exact' check='none'>
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<model fallback='forbid'>qemu64</model>
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</cpu>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/bin/qemu-system-x86_64</emulator>
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<controller type='pci' index='0' model='pcie-root'/>
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<controller type='usb' index='0' model='none'/>
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<controller type='sata' index='0'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
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</controller>
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<input type='mouse' bus='ps2'/>
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<input type='keyboard' bus='ps2'/>
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<audio id='1' type='none'/>
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<watchdog model='itco' action='reset'/>
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<memballoon model='none'/>
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</devices>
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</domain>
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