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Re: Command line QAPIfication and -readconfig
From: |
Andrea Bolognani |
Subject: |
Re: Command line QAPIfication and -readconfig |
Date: |
Thu, 12 Nov 2020 15:14:04 +0100 |
User-agent: |
Evolution 3.36.5 (3.36.5-1.fc32) |
On Wed, 2020-11-11 at 11:35 +0100, Kevin Wolf wrote:
> Am 11.11.2020 um 11:14 hat Daniel P. Berrangé geschrieben:
> > Normally we would not mark something as deprecated unless its replacement
> > is ready, because telling people "stop using this but the replacement
> > doesn't exist yet" is not a nice message as there is no action users can
> > take to deal with the deprecation.
>
> But there is a replacement: Put everything back into the command line
> and keep it in a shell script. Config files with -readconfig were never
> complete enough to fully describe a VM, so it's not too unlikely that
> you'll already have that script anyway.
This is correct: in fact...
> > We might question whether -readconfig has any users but I would note
> > that our own documentation illustrates its usage, and provides several
> > example configs
> >
[...]
> > config/mach-virt-graphical.cfg:# -readconfig mach-virt-graphical.cfg \
> > config/mach-virt-serial.cfg:# -readconfig mach-virt-serial.cfg \
> > config/q35-emulated.cfg:# -readconfig q35-emulated.cfg
> > config/q35-virtio-graphical.cfg:# -readconfig q35-virtio-graphical.cfg
> > config/q35-virtio-serial.cfg:# -readconfig q35-virtio-serial.cfg \
[...]
... these configuration files, which I contributed some time ago, all
start with something along the lines of
# Usage:
#
# $ qemu-system-aarch64 \
# -nodefaults \
# -readconfig mach-virt-serial.cfg \
# -display none -serial mon:stdio \
# -cpu host
because it was simply impossible to provide QEMU with all the
settings necessary to obtain the desired virtual hardware using the
configuration file only.
--
Andrea Bolognani / Red Hat / Virtualization
- Command line QAPIfication and -readconfig, Kevin Wolf, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Daniel P . Berrangé, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Kevin Wolf, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Paolo Bonzini, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Kevin Wolf, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Paolo Bonzini, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Kevin Wolf, 2020/11/11
- Re: Command line QAPIfication and -readconfig, Paolo Bonzini, 2020/11/11
- Re: Command line QAPIfication and -readconfig,
Andrea Bolognani <=