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Re: [Qemu-devel] [PATCH v3 1/2] kvm: support -dedicated cpu-pm=on|off
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH v3 1/2] kvm: support -dedicated cpu-pm=on|off |
Date: |
Wed, 20 Jun 2018 03:06:23 +0300 |
On Tue, Jun 19, 2018 at 05:07:46PM -0500, Eric Blake wrote:
> On 06/19/2018 10:17 AM, Paolo Bonzini wrote:
> > On 16/06/2018 00:29, Michael S. Tsirkin wrote:
> > > +static QemuOptsList qemu_dedicated_opts = {
> > > + .name = "dedicated",
> > > + .head = QTAILQ_HEAD_INITIALIZER(qemu_dedicated_opts.head),
> > > + .desc = {
> > > + {
> > > + .name = "mem-lock",
> > > + .type = QEMU_OPT_BOOL,
> > > + },
> > > + {
> > > + .name = "cpu-pm",
> > > + .type = QEMU_OPT_BOOL,
> > > + },
> > > + { /* end of list */ }
> > > + },
> > > +};
> > > +
> >
> > Let the bikeshedding begin!
> >
> > 1) Should we deprecate -realtime?
> >
> > 2) Maybe -hostresource?
>
> What further things might we add in the future?
>
> -dedicated sounds wrong (it is an adjective, while most of our options are
> nouns - thing -machine, -drive, -object, ...)
>
> -hostresource at least sounds like a noun, but is long to type. But at
> least '-hostresource cpu-pm=on' reads reasonably well.
Yes but host resource what? I feel it says nothing at all about what
one can expect to find in this flag.
> About the only other noun I could think of would be '-feature cpu-pm=on'.
If we have nothing at all to say about what is grouping these things,
we don't need a new flag. We can make it a machine property.
It's user's hint that some host resource is dedicated to a VM.
> --
> Eric Blake, Principal Software Engineer
> Red Hat, Inc. +1-919-301-3266
> Virtualization: qemu.org | libvirt.org
Re: [Qemu-devel] [PATCH v3 0/2] kvm: limited x86 CPU power management, no-reply, 2018/06/17