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f0b3840fb6
python2 will be end of life by the time of the next libvirt release. All our supported build targets, including CentOS7, have a python3 build available. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
104 lines
2.3 KiB
Bash
Executable File
104 lines
2.3 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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python3 <<EOF
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from struct import pack, unpack
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from fcntl import ioctl
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import sys, errno
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IA32_ARCH_CAPABILITIES_MSR = 0x10a
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KVM_GET_MSRS = 0xc008ae88
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def print_msr(msr, via=None):
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if via is None:
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print("MSR:")
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else:
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print("MSR via %s:" % via)
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print(" 0x%x: 0x%016x" % (IA32_ARCH_CAPABILITIES_MSR, msr))
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print()
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try:
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fd = open("/dev/cpu/0/msr", "rb")
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fd.seek(IA32_ARCH_CAPABILITIES_MSR)
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buf = fd.read(8)
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msr = unpack("=Q", buf)[0]
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print_msr(msr)
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sys.exit(0)
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except IOError as e:
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# The MSR is not supported on the host
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if e.errno == errno.EIO:
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sys.exit(0)
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try:
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fd = open("/dev/kvm", "r")
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bufIn = pack("=LLLLQ", 1, 0, IA32_ARCH_CAPABILITIES_MSR, 0, 0)
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bufOut = ioctl(fd, KVM_GET_MSRS, bufIn)
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msr = unpack("=LLLLQ", bufOut)[4]
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print_msr(msr, via="KVM")
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except IOError as e:
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pass
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EOF
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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":"query-cpu-definitions","id":"definitions"}
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{"execute":"quit"}
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EOF
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