On 9/2/19 1:57 PM, Thomas Lamprecht wrote:
On 8/30/19 9:40 AM, Aaron Lauterer wrote:
Signed-off-by: Aaron Lauterer <a.laute...@proxmox.com>
---
PVE/QemuServer/USB.pm | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/PVE/QemuServer/USB.pm b/PVE/QemuServer/USB.pm
index a2097b9..05c78cf 100644
--- a/PVE/QemuServer/USB.pm
+++ b/PVE/QemuServer/USB.pm
@@ -87,9 +87,12 @@ sub get_usb_devices {
my $hostdevice = parse_usb_device($d->{host});
$hostdevice->{usb3} = $d->{usb3};
if (defined($hostdevice->{spice}) && $hostdevice->{spice}) {
- # usb redir support for spice, currently no usb3
+ # usb redir support for spice
+ my $bus = 'ehci';
+ $bus = 'xhci' if $hostdevice->{usb3};
+
push @$devices, '-chardev',
"spicevmc,id=usbredirchardev$i,name=usbredir";
- push @$devices, '-device',
"usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=ehci.0";
+ push @$devices, '-device',
"usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=$bus.0";
} else {
push @$devices, '-device', print_usbdevice_full($conf, "usb$i",
$hostdevice);
}
what the commit message does not mentions:
One could have set an usb3 spice variant already, e.g., with:
# qm set 1000 --usb2 spice,usb3=1
and started it without issues, as we just ignored it.
Now, with your patch it will suddenly change the backing bus to
xhci, which (I assume) kills live migrations or restorations of
snapshot with RAM.
So this would need to be guarded somehow, e.g., with a qemu
machine version check.
As described in the cover letter this is only true if other USB2 devices
are added. Because only then will there be a "ehci.0" bus.
Otherwise the start of the VM will fail with this error: "Bus 'ehci.0'
not found".
I did not think about the snapshot restore situation. I will integrate a
qemu machine version check to handle it.
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