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1d8454639f
virtio-pci is the way forward for aarch64 guests: it's faster and less alien to people coming from other architectures. Now that guest support is finally getting there (Fedora 24, CentOS 7.3, Ubuntu 16.04 and Debian testing all support virtio-pci out of the box), we'd like to start using it by default instead of virtio-mmio. Users and applications can already opt-in by explicitly using <address type='pci'/> inside the relevant elements, but that's kind of cumbersome and requires all users and management applications to adapt, which we'd really like to avoid. What we can do instead is use virtio-mmio only if the guest already has at least one virtio-mmio device, and use virtio-pci in all other situations. That means existing virtio-mmio guests will keep using the old addressing scheme, and new guests will automatically be created using virtio-pci instead. Users can still override the default in either direction. Existing tests such as aarch64-aavmf-virtio-mmio and aarch64-virtio-pci-default already cover all possible scenarios, so no additions to the test suites are necessary.
92 lines
3.3 KiB
XML
92 lines
3.3 KiB
XML
<domain type='qemu'>
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<name>aarch64test</name>
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<uuid>496d7ea8-9739-544b-4ebd-ef08be936e8b</uuid>
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<memory unit='KiB'>1048576</memory>
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<currentMemory unit='KiB'>1048576</currentMemory>
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<vcpu placement='static'>1</vcpu>
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<os>
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<type arch='aarch64' machine='virt'>hvm</type>
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<kernel>/aarch64.kernel</kernel>
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<initrd>/aarch64.initrd</initrd>
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<cmdline>earlyprintk console=ttyAMA0,115200n8 rw root=/dev/vda rootwait</cmdline>
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<dtb>/aarch64.dtb</dtb>
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<boot dev='hd'/>
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</os>
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<features>
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<acpi/>
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<apic/>
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<pae/>
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<gic version='2'/>
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</features>
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<cpu mode='custom' match='exact'>
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<model fallback='allow'>cortex-a53</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>restart</on_crash>
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<devices>
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<emulator>/usr/bin/qemu-system-aarch64</emulator>
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<disk type='file' device='disk'>
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<source file='/aarch64.raw'/>
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<target dev='vda' bus='virtio'/>
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<address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
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</disk>
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<controller type='pci' index='0' model='pcie-root'/>
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<controller type='virtio-serial' index='0'>
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<address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
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</controller>
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<controller type='pci' index='1' model='pcie-root-port'>
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<model name='ioh3420'/>
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<target chassis='1' port='0x8'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
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</controller>
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<controller type='pci' index='2' model='pcie-root-port'>
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<model name='ioh3420'/>
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<target chassis='2' port='0x10'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
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</controller>
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<controller type='pci' index='3' model='pcie-root-port'>
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<model name='ioh3420'/>
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<target chassis='3' port='0x18'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
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</controller>
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<controller type='pci' index='4' model='pcie-root-port'>
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<model name='ioh3420'/>
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<target chassis='4' port='0x20'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
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</controller>
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<controller type='pci' index='5' model='pcie-root-port'>
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<model name='ioh3420'/>
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<target chassis='5' port='0x28'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
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</controller>
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<controller type='pci' index='6' model='pcie-root-port'>
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<model name='ioh3420'/>
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<target chassis='6' port='0x30'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
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</controller>
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<interface type='user'>
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<mac address='52:54:00:09:a4:37'/>
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<model type='virtio'/>
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<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
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</interface>
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<serial type='pty'>
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<target port='0'/>
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</serial>
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<console type='pty'>
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<target type='serial' port='0'/>
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</console>
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<console type='pty'>
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<target type='virtio' port='1'/>
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</console>
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<memballoon model='virtio'>
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<address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
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</memballoon>
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<rng model='virtio'>
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<backend model='random'>/dev/random</backend>
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<address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
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</rng>
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</devices>
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</domain>
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