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memory doesn't have a separate input/output stats, so we shouldn't use
the in_out_vector_helper. This resulted in shutoff VMs appearing to still
use memory in the manager window.
It's largely the same, but now
- The code is better organized
- The UI is much more streamlined, only showing relevant fields when
required.
- We warn about the hostname/URI cases that we know libvirt will error on
- Drop some of the attempts at being smart, and just mimic what libvirt
will do.
Leaving a VM defined on the source is dangerous: if they are sharing
storage, and aren't using virtlockd, then they might be inadvertently
started in two places at once and trash a disk image.
Some people might still need the option to turn this off, so maybe we
will revive it. Not sure though
This is only needed when people have very specific downtime constraints
on public facing services. I don't think that covers many virt-manager
users. So suggest they just use the command line for this.
All major drivers either support it, or don't support save at all,
so I think we can safely drop it. If people still need it they can
get by with virsh.
qemu has provided this feature for a long time, and every other driver
we care about provides a reboot implementation as well, so drop our
handling of it.
There's no external callers anymore, and the prospect of keeping this
stuff cached but potentially having a thread invalidate it makes me nervous,
so simplify things by making callers explicitly request the object they
want to redefine.
Have libvirtobjects advertise a routine specifically for initial setup,
and emit a signal when it's complete. Then dispatch the associated conn
signal on demand as the objects are initialized. This should avoid a
whole class of ordering issues, and is easier to follow IMO.
People should rarely need to edit the mac address, so remove it from
the create wizard. However we only allow editing the mac address in
the 'customize' dialog: regular network details disables editing, since
that should be a rare and potentially dangerous operation.
Right now we aren't showing the defaults like disk buses, sound devices,
disk cache modes, etc. This is confusing to the user and not that useful.
Encode the defaults before launching the wizard, so the user can see what
the end config will actually look like.
This might cause weirdness if going back to the create.py wizard, but
we'll see if anyone complains before handling that.
Not passing an emulator is only for showing ideal defaults in the UI.
When doing internal checks, we only want to disable features if we know
the emulator doesn't support them.
It is added only in the details window, and intentionally not added to
the addhardware UI to keep it simpler. Users can edit this after a
new device is added.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
I've noticed twice today that 'guestcpus' was set to 0 while the
domain was shutting down. Play safe and check that 'guestcpus' is > 0
before divide by it.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
(1) A separate nvram (ie. variable store) file for the domain exists if
and only if the following condition holds:
(self.get_xmlobj().os.loader_ro is True and
self.get_xmlobj().os.loader_type == "pflash")
(Refer to libvirtd's qemuPrepareNVRAM() function, as of commit 742b08e30.)
(2) The
self.get_xmlobj().os.nvram
condition is sufficient, but not necessary, for the separate varstore file
to exist. That is, if the condition holds, then the separate varstore file
exists for sure, but if the condition doesn't hold, the file may exist
nonetheless. (Because libvirtd can auto-generate the varstore file's
pathname.)
This means that requiring condition (2) for setting UNDEFINE_NVRAM on
domain deletion will miss a subset of the cases, ie. when the necessary
and sufficient condition (1) holds, but the sufficient-only condition (2)
doesn't.
Make sure that the code uses the necessary and sufficient condition (1).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Rework things a bit to simplify everything we pass around.
The specific bug fix is making sure we update the object list in place,
otherwise the event loop detects it as the VM being deleted and closes
the details window.
We expose a simple combobox with two entries: BIOS, and UEFI. The
UEFI option is only selectable if 1) libvirt supports the necessary
domcapabilities bits, 2) it detects that qemu supports the necessary
command line options, and 3) libvirt detects a UEFI binary on the
host that maps to a known template via qemu.conf
If those conditions aren't met, we disable the UEFI option, and show
a small warning icon with an explanatory tooltip.
The option can only be changed via New VM->Customize Before Install.
For existing x86 VMs, it's a readonly label.
We would unconditionally read VM description/hotplug from the inactive
domain XML, this allowed us to emulate metadata hotplug where it wasn't
implemented. However this means we end up doing many needless XMLDesc
calls, which slows down connection startup for low latency connections.
Since SetMetadata has been in libvirt for 2 years now, drop this hack.
