[pve-devel] [PATCH qemu-server 1/7] PVE/QemuServer: allow mapped usb devices in config

Dominik Csapak d.csapak at proxmox.com
Tue Jul 19 13:46:21 CEST 2022


Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
---
 PVE/QemuServer.pm     |  2 ++
 PVE/QemuServer/USB.pm | 21 ++++++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 7d9cf22..a6ca80d 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -1069,6 +1069,8 @@ The Host USB device or port or the value 'spice'. HOSTUSBDEVICE syntax is:
 
 You can use the 'lsusb -t' command to list existing usb devices.
 
+Alternatively, you can used an ID of a mapped usb device.
+
 NOTE: This option allows direct access to host hardware. So it is no longer possible to migrate such
 machines - use with special care.
 
diff --git a/PVE/QemuServer/USB.pm b/PVE/QemuServer/USB.pm
index 3c8da2c..279078a 100644
--- a/PVE/QemuServer/USB.pm
+++ b/PVE/QemuServer/USB.pm
@@ -4,6 +4,7 @@ use strict;
 use warnings;
 use PVE::QemuServer::PCI qw(print_pci_addr);
 use PVE::JSONSchema;
+use PVE::HardwareMap;
 use base 'Exporter';
 
 our @EXPORT_OK = qw(
@@ -27,7 +28,25 @@ sub parse_usb_device {
     } elsif ($value =~ m/^spice$/i) {
 	$res->{spice} = 1;
     } else {
-	return;
+	# we have no ordinary usb device, must be a mapping
+	my $device = PVE::HardwareMap::find_device_on_current_node('usb', $value);
+	return undef if !defined($device);
+	eval {
+	    PVE::HardwareMap::assert_device_valid('usb', $device);
+	};
+	if (my $err = $@) {
+	    warn "USB Mapping invalid (hardware probably changed): $err\n";
+	    return;
+	}
+
+	if ($device->{path}) {
+	    $res = parse_usb_device($device->{path});
+	} else {
+	    $res->{vendorid} = $device->{vendor};
+	    $res->{productid} = $device->{device};
+	}
+
+	$res->{mapped} = 1;
     }
 
     return $res;
-- 
2.30.2





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