On 04/20/2017 11:12 AM, Markus Armbruster wrote: >>> Well technically /usr/sbin/halt just terminates all processes / kernel and >>> halts CPUs, but the virtual machine is still active (and a 'reset' in the >>> monitor can start it again. /usr/sbin/poweroff is what actually does the >>> ACPI poweroff to trigger QEMU to exit[1] >> >> I'm thinking of this wording: >> >> triggered by a guest request (such as the guest running >> /usr/sbin/poweroff to trigger an ACPI shutdown or machine halt instruction) > > A quick glance at the patch suggests the instructions in question are > typically writes to some device register. I wouldn't call them "halt > instructions", in particular since there's the x86 "hlt" instruction > that does something else. Then maybe: a guest request (such as the guest running /usr/sbin/poweroff to trigger an ACPI or other hardware-specific shutdown sequence) -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
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