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Instantiating "host" CPU and querying it using qom-get has been the only way of probing host CPU via QEMU until 2.9.0 implemented query-cpu-model-expansion for x86_64. Even though libvirt never really used the old way its result can be easily converted into the one produced by query-cpu-model-expansion. Thus we can reuse the original test data and possible get new data from hosts where QEMU does not support the new QMP command. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
63 lines
1.4 KiB
Bash
Executable File
63 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# The cpuid tool can be usually found in a package called "cpuid". If your
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# distro does not provide such package, you can find the sources or binary
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# packages at http://www.etallen.com/cpuid.html
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grep 'model name' /proc/cpuinfo | head -n1
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cpuid -1r
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echo
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qemu=qemu-system-x86_64
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for cmd in /usr/bin/$qemu /usr/bin/qemu-kvm /usr/libexec/qemu-kvm; do
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if [[ -x $cmd ]]; then
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qemu=$cmd
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break
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fi
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done
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qom_get()
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{
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path='/machine/unattached/device[0]'
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echo '{"execute":"qom-get","arguments":{"path":"'$path'",' \
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'"property":"'$1'"},"id":"'$1'"}'
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}
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model_expansion()
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{
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mode=$1
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model=$2
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echo '{"execute":"query-cpu-model-expansion","arguments":' \
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'{"type":"'"$mode"'","model":'"$model"'},"id":"model-expansion"}'
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}
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model=$(
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$qemu -machine accel=kvm -cpu host -nodefaults -nographic -qmp stdio <<EOF
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{"execute":"qmp_capabilities"}
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$(model_expansion static '{"name":"host"}')
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{"execute":"quit"}
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EOF
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)
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model=$(
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echo "$model" | \
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sed -ne 's/^{"return": {"model": {\(.*{.*}\)}}, .*/{\1}/p'
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)
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$qemu -machine accel=kvm -cpu host -nodefaults -nographic -qmp stdio <<EOF
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{"execute":"qmp_capabilities"}
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$(
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if [ "x$model" != x ]; then
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model_expansion full "$model"
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else
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qom_get feature-words
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qom_get family
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qom_get model
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qom_get stepping
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qom_get model-id
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fi
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)
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{"execute":"quit"}
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EOF
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