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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.
39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
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-system-aarch64 \
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-name aarch64test \
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-S \
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-M virt-2.6 \
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-cpu cortex-a53 \
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-m 1024 \
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-smp 1,sockets=1,cores=1,threads=1 \
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-uuid 496d7ea8-9739-544b-4ebd-ef08be936e8b \
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-nographic \
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-nodefconfig \
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-nodefaults \
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-monitor unix:/tmp/lib/domain--1-aarch64test/monitor.sock,server,nowait \
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-boot c \
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-kernel /aarch64.kernel \
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-initrd /aarch64.initrd \
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-append 'earlyprintk console=ttyAMA0,115200n8 rw root=/dev/vda rootwait' \
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-dtb /aarch64.dtb \
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-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1 \
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-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
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-device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,addr=0x2 \
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-device virtio-serial-pci,id=virtio-serial0,bus=pci.2,addr=0x2 \
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-drive file=/aarch64.raw,format=raw,if=none,id=drive-virtio-disk0 \
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-device virtio-blk-pci,bus=pci.2,addr=0x3,drive=drive-virtio-disk0,\
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id=virtio-disk0 \
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-device virtio-net-pci,vlan=0,id=net0,mac=52:54:00:09:a4:37,bus=pci.2,addr=0x1 \
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-net user,vlan=0,name=hostnet0 \
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-serial pty \
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-chardev pty,id=charconsole1 \
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-device virtconsole,chardev=charconsole1,id=console1 \
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-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x4 \
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-object rng-random,id=objrng0,filename=/dev/random \
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-device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.2,addr=0x5
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