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QEMU supports a bunch of CPUID features that are tied to the kvm CPUID nodes rather than the processor's. They are "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvm_asyncpf". These are not known to libvirt and their CPUID leaf might move if (for example) the Hyper-V extensions are enabled. Hence their handling would anyway require some special-casing. However, among these the most useful is kvmclock; an additional "property" of this feature is that a <timer> element is a better model than a CPUID feature. Although, creating part of the -cpu command-line from something other than the <cpu> XML element introduces some ugliness. Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 lines
239 B
Plaintext
5 lines
239 B
Plaintext
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/kvm -S -M pc \
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-cpu qemu32,-kvmclock -m 214 -smp 6 \
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-nographic -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot n -net \
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none -serial none -parallel none -usb
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