* Markus Armbruster (arm...@redhat.com) wrote:
> Peter Xu <pet...@redhat.com> writes:
>
> > On Tue, Jun 05, 2018 at 01:26:34PM +0100, Dr. David Alan Gilbert (git)
> > wrote:
> >> From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>
> >>
> >> Allow a bunch of the info commands to be used in preconfig.
> >> Could probably add most of them.
> >
> > I guess some of them may not work yet during preconfig. E.g.:
> >
> > $ ./x86_64-softmmu/qemu-system-x86_64 -preconfig -monitor stdio
> > QEMU 2.12.50 monitor - type 'help' for more information
> > (qemu) info mtree
> > address-space: memory
> > 0000000000000000-ffffffffffffffff (prio 0, i/o): system
> >
> > address-space: I/O
> > 0000000000000000-000000000000ffff (prio 0, i/o): io
> >
> > But it's fine to enable that I guess.
> >
> > (Which "info" command would you want to use during preconfig?)
> >
> >>
> >> Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
> >
> > Reviewed-by: Peter Xu <pet...@redhat.com>
>
> The reason for having -preconfig is us despairing of making -S do the
> right thing. We'd have to *understand* the tangled mess that is our
> startup, and rearrange it so QMP becomes available early enough for
> configuring NUMA (and other things), yet late enough for everything to
> work.
>
> -preconfig is a cheap hack to avoid this headache, by bypassing almost
> all of "everything".
>
> Now you bring back some of "everything". Dangerous. You better show it
> actually works. Until you do:
>
> NAK
Well I did test each command in here to make sure it didn't
crash/produce complete junk; but here's the output with the v2 of this
patch that Igor R-b:
[dgilbert@dgilbert-t530 try]$ ./x86_64-softmmu/qemu-system-x86_64 -nographic
-preconfig
(qemu)
(qemu)
(qemu) help info
info chardev -- show the character devices
info history -- show the command line history
info hotpluggable-cpus -- Show information about hotpluggable CPUs
info iothreads -- show iothreads
info memdev -- show memory backends
info name -- show the current VM name
info numa -- show NUMA information
info qom-tree [path] -- show QOM composition tree
info status -- show the current VM status (running|paused)
info usbhost -- show host USB devices
info uuid -- show the current VM UUID
info version -- show the version of QEMU
(qemu) info chardev
serial0: filename=mux
serial0-base: filename=stdio
parallel0: filename=null
(qemu) info history
0: 'help info'
1: 'info chardev'
2: 'info history'
(qemu) info hotpluggable-cpus
Hotpluggable CPUs:
type: "qemu64-x86_64-cpu"
vcpus_count: "1"
CPUInstance Properties:
socket-id: "0"
core-id: "0"
thread-id: "0"
(qemu) info iothreads
(qemu) info memdev
(qemu) info name
(qemu) info numa
0 nodes
(qemu) info qom-tree
/machine (pc-i440fx-3.0-machine)
/peripheral (container)
/peripheral-anon (container)
/unattached (container)
/system[0] (qemu:memory-region)
/io[0] (qemu:memory-region)
(qemu) info status
VM status: paused (preconfig)
(qemu) info usbhost
Bus 2, Addr 3, Port 1.5, Speed 1.5 Mb/s
Class 00: USB device 093a:2510
Bus 1, Addr 3, Port 1.6, Speed 480 Mb/s
Class ef: USB device 5986:02d2
Bus 3, Addr 2, Port 1, Speed 1.5 Mb/s
Class 00: USB device 0d3d:0001
(qemu) info uuid
00000000-0000-0000-0000-000000000000
(qemu) info version
2.12.50v2.12.0-1074-gfbb4dcae3a
(qemu)
Dave
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
