[pve-devel] [PATCH qemu-server v1 1/3] vga: allow live-migration with clipboard

Markus Frank m.frank at proxmox.com
Wed Nov 19 15:18:13 CET 2025



On 2025-11-17 17:43, Fiona Ebner wrote:
> Am 17.11.25 um 5:41 PM schrieb Fiona Ebner:
>> Am 17.11.25 um 5:28 PM schrieb Markus Frank:
>>> The live-migration feature now works with qemu's upstream commit:
>>> 5d56bff11e ("ui/vdagent: add migration support")
>>>
>>> Signed-off-by: Markus Frank <m.frank at proxmox.com>
>>> ---
>>>   src/PVE/API2/Qemu.pm   | 5 -----
>>>   src/PVE/QemuMigrate.pm | 5 -----
>>>   src/PVE/QemuServer.pm  | 2 +-
>>>   3 files changed, 1 insertion(+), 11 deletions(-)
>>>
>>> diff --git a/src/PVE/API2/Qemu.pm b/src/PVE/API2/Qemu.pm
>>> index 02f5caec..314b6a48 100644
>>> --- a/src/PVE/API2/Qemu.pm
>>> +++ b/src/PVE/API2/Qemu.pm
>>> @@ -5267,11 +5267,6 @@ __PACKAGE__->register_method({
>>>           my ($local_resources, $mapped_resources, $missing_mappings_by_node) =
>>>               PVE::QemuMigrate::Helpers::check_local_resources($vmconf, $res->{running}, 1);
>>>   
>>> -        my $vga = PVE::QemuServer::parse_vga($vmconf->{vga});
>>> -        if ($res->{running} && $vga->{'clipboard'} && $vga->{'clipboard'} eq 'vnc') {
>>> -            push $local_resources->@*, "clipboard=vnc";
>>> -        }
>>
>> I suppose this depends on having machine version >= 10.1, or? (In any
>> case QEMU binary version >= 10.1 but that is implied by machine version >= 10.1)

Yes, it needs QEMU version >= 10.1. However, when I set the machine version to < 10.1
(tested with version 6.2), the migration still works fine and the clipboard still functions on the other node.
It seems that the machine version is unrelated here.

I suppose it would be better to check the QEMU version using get_running_qemu_version, wouldn't it?




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