* [pve-devel] [PATCH qemu-server 2/2] virtio-net: fix migration between default/non-default MTUs starting with machine version 10.0+pve1
2025-09-02 13:44 [pve-devel] [PATCH-SERIES qemu-server 0/2] virtio-net: fix migration between default/non-default MTUs, part one Fiona Ebner
2025-09-02 13:44 ` [pve-devel] [PATCH qemu-server 1/2] run make tidy Fiona Ebner
@ 2025-09-02 13:44 ` Fiona Ebner
2025-09-03 7:22 ` Fabian Grünbichler
1 sibling, 1 reply; 5+ messages in thread
From: Fiona Ebner @ 2025-09-02 13:44 UTC (permalink / raw)
To: pve-devel
The virtual hardware is generated differently (at least for i440fx
machines) when host_mtu is set or not set on the netdev command line
[0]. When the MTU is the same value as the default 1500, Proxmox VE
did not add a host_mtu parameter. This is problematic for migration
where host_mtu is present on one end of the migration, but not on the
other [1]. Migration between command lines where host_mtu is set on
both ends, even if set to different values, works fine.
Always set the host_mtu parameter starting with machine version
10.0+pve1 to avoid this issue going forward. Handling migrations with
older machine versions is more involved and will be done in separate
patches. Thanks to Stefan Hanreich and Fabian Grünbichler for
discussing this with me!
Since print_netdevice_full() is also called for hotplug, it cannot
always use the $version_guard helper and needs to fallback to
min_version() then.
[0]: https://bugzilla.redhat.com/show_bug.cgi?id=1449346
[1]: https://forum.proxmox.com/threads/live-vm-migration-fails.169537/post-796379
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
src/PVE/QemuServer.pm | 23 +++++++++++++++++--
src/PVE/QemuServer/Machine.pm | 6 +++++
src/test/cfg2cmd/bootorder-empty.conf.cmd | 4 ++--
src/test/cfg2cmd/bootorder-legacy.conf.cmd | 4 ++--
src/test/cfg2cmd/bootorder.conf.cmd | 4 ++--
src/test/cfg2cmd/efidisk-on-rbd.conf.cmd | 4 ++--
src/test/cfg2cmd/ide.conf.cmd | 4 ++--
.../cfg2cmd/netdev-7.1-multiqueues.conf.cmd | 2 +-
src/test/cfg2cmd/netdev-7.1.conf.cmd | 2 +-
src/test/cfg2cmd/netdev_vxlan.conf.cmd | 2 +-
src/test/cfg2cmd/q35-ide.conf.cmd | 4 ++--
.../q35-linux-hostpci-mapping.conf.cmd | 4 ++--
.../q35-linux-hostpci-multifunction.conf.cmd | 4 ++--
...q35-linux-hostpci-x-pci-overrides.conf.cmd | 4 ++--
src/test/cfg2cmd/q35-linux-hostpci.conf.cmd | 4 ++--
src/test/cfg2cmd/q35-simple.conf.cmd | 4 ++--
src/test/cfg2cmd/seabios_serial.conf.cmd | 4 ++--
src/test/cfg2cmd/simple-btrfs.conf.cmd | 4 ++--
.../cfg2cmd/simple-disk-passthrough.conf.cmd | 4 ++--
src/test/cfg2cmd/simple-rbd.conf.cmd | 4 ++--
src/test/cfg2cmd/simple-virtio-blk.conf.cmd | 4 ++--
.../cfg2cmd/simple-zfs-over-iscsi.conf.cmd | 4 ++--
src/test/cfg2cmd/simple1.conf.cmd | 4 ++--
23 files changed, 66 insertions(+), 41 deletions(-)
diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm
index 38fa3f83..8528f9f3 100644
--- a/src/PVE/QemuServer.pm
+++ b/src/PVE/QemuServer.pm
@@ -1457,7 +1457,17 @@ sub print_pbs_blockdev {
}
sub print_netdevice_full {
- my ($vmid, $conf, $net, $netid, $bridges, $use_old_bios_files, $arch, $machine_version) = @_;
+ my (
+ $vmid,
+ $conf,
+ $net,
+ $netid,
+ $bridges,
+ $use_old_bios_files,
+ $arch,
+ $machine_version,
+ $version_guard,
+ ) = @_;
my $device = $net->{model};
if ($net->{model} eq 'virtio') {
@@ -1495,7 +1505,15 @@ sub print_netdevice_full {
die "netdev $netid: MTU '$mtu' is bigger than the bridge MTU '$bridge_mtu'\n";
}
- $tmpstr .= ",host_mtu=$mtu" if $mtu != 1500;
+ my $always_set_host_mtu =
+ $version_guard
+ ? $version_guard->(10, 0, 1)
+ : min_version($machine_version, 10, 0, 1);
+ if ($always_set_host_mtu) {
+ $tmpstr .= ",host_mtu=$mtu";
+ } else {
+ $tmpstr .= ",host_mtu=$mtu" if $mtu != 1500;
+ }
} elsif (defined($mtu)) {
warn
"WARN: netdev $netid: ignoring MTU '$mtu', not using VirtIO or no bridge configured.\n";
@@ -3828,6 +3846,7 @@ sub config_to_command {
$use_old_bios_files,
$arch,
$machine_version,
+ $version_guard,
);
push @$devices, '-device', $netdevicefull;
diff --git a/src/PVE/QemuServer/Machine.pm b/src/PVE/QemuServer/Machine.pm
index 9d17344a..4c135a20 100644
--- a/src/PVE/QemuServer/Machine.pm
+++ b/src/PVE/QemuServer/Machine.pm
@@ -37,6 +37,12 @@ our $PVE_MACHINE_VERSION = {
'+pve1' => 'Disables S3/S4 power states by default.',
},
},
+ '10.0' => {
+ highest => 1,
+ revisions => {
+ '+pve1' => 'Set host_mtu vNIC option even with default value for migration compat.',
+ },
+ },
};
my $machine_fmt = {
diff --git a/src/test/cfg2cmd/bootorder-empty.conf.cmd b/src/test/cfg2cmd/bootorder-empty.conf.cmd
index 3516b344..af4a5ba6 100644
--- a/src/test/cfg2cmd/bootorder-empty.conf.cmd
+++ b/src/test/cfg2cmd/bootorder-empty.conf.cmd
@@ -39,5 +39,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/var/lib/vz/images/8006/vm-8006-disk-0.qcow2","node-name":"eeb683fb9c516c1a8707c917f0d7a38","read-only":false},"node-name":"feb683fb9c516c1a8707c917f0d7a38","read-only":false},"node-name":"drive-virtio1","read-only":false,"throttle-group":"throttle-drive-virtio1"}' \
-device 'virtio-blk-pci,drive=drive-virtio1,id=virtio1,bus=pci.0,addr=0xb,iothread=iothread-virtio1,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/bootorder-legacy.conf.cmd b/src/test/cfg2cmd/bootorder-legacy.conf.cmd
index c86ab6f9..6b848a9b 100644
--- a/src/test/cfg2cmd/bootorder-legacy.conf.cmd
+++ b/src/test/cfg2cmd/bootorder-legacy.conf.cmd
@@ -39,5 +39,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/var/lib/vz/images/8006/vm-8006-disk-0.qcow2","node-name":"eeb683fb9c516c1a8707c917f0d7a38","read-only":false},"node-name":"feb683fb9c516c1a8707c917f0d7a38","read-only":false},"node-name":"drive-virtio1","read-only":false,"throttle-group":"throttle-drive-virtio1"}' \
-device 'virtio-blk-pci,drive=drive-virtio1,id=virtio1,bus=pci.0,addr=0xb,iothread=iothread-virtio1,bootindex=302,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=100' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=100,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/bootorder.conf.cmd b/src/test/cfg2cmd/bootorder.conf.cmd
index 48f9da8b..a3c6bd39 100644
--- a/src/test/cfg2cmd/bootorder.conf.cmd
+++ b/src/test/cfg2cmd/bootorder.conf.cmd
@@ -39,5 +39,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/var/lib/vz/images/8006/vm-8006-disk-0.qcow2","node-name":"eeb683fb9c516c1a8707c917f0d7a38","read-only":false},"node-name":"feb683fb9c516c1a8707c917f0d7a38","read-only":false},"node-name":"drive-virtio1","read-only":false,"throttle-group":"throttle-drive-virtio1"}' \
-device 'virtio-blk-pci,drive=drive-virtio1,id=virtio1,bus=pci.0,addr=0xb,iothread=iothread-virtio1,bootindex=100,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=101' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=101,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/efidisk-on-rbd.conf.cmd b/src/test/cfg2cmd/efidisk-on-rbd.conf.cmd
index 5d0c8aff..dda9d91b 100644
--- a/src/test/cfg2cmd/efidisk-on-rbd.conf.cmd
+++ b/src/test/cfg2cmd/efidisk-on-rbd.conf.cmd
@@ -31,5 +31,5 @@
-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=pc+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=pc+pve1'
diff --git a/src/test/cfg2cmd/ide.conf.cmd b/src/test/cfg2cmd/ide.conf.cmd
index 6b5a52a9..23282a18 100644
--- a/src/test/cfg2cmd/ide.conf.cmd
+++ b/src/test/cfg2cmd/ide.conf.cmd
@@ -42,5 +42,5 @@
-blockdev '{"detect-zeroes":"on","discard":"ignore","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"on","discard":"ignore","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"on","discard":"ignore","driver":"file","filename":"/var/lib/vz/images/100/vm-100-disk-2.qcow2","node-name":"ec11e0572184321efc5835152b95d5d","read-only":false},"node-name":"fc11e0572184321efc5835152b95d5d","read-only":false},"node-name":"drive-scsi0","read-only":false,"throttle-group":"throttle-drive-scsi0"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,device_id=drive-scsi0,bootindex=100,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/netdev-7.1-multiqueues.conf.cmd b/src/test/cfg2cmd/netdev-7.1-multiqueues.conf.cmd
index 776bab30..43e40742 100644
--- a/src/test/cfg2cmd/netdev-7.1-multiqueues.conf.cmd
+++ b/src/test/cfg2cmd/netdev-7.1-multiqueues.conf.cmd
@@ -25,4 +25,4 @@
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on,queues=2' \
-device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,vectors=6,mq=on,packed=on,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=900' \
- -machine 'type=pc+pve0'
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/netdev-7.1.conf.cmd b/src/test/cfg2cmd/netdev-7.1.conf.cmd
index 0d6b3ad2..10404de4 100644
--- a/src/test/cfg2cmd/netdev-7.1.conf.cmd
+++ b/src/test/cfg2cmd/netdev-7.1.conf.cmd
@@ -25,4 +25,4 @@
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
-device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=900' \
- -machine 'type=pc+pve0'
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/netdev_vxlan.conf.cmd b/src/test/cfg2cmd/netdev_vxlan.conf.cmd
index a2f3579d..7de574a7 100644
--- a/src/test/cfg2cmd/netdev_vxlan.conf.cmd
+++ b/src/test/cfg2cmd/netdev_vxlan.conf.cmd
@@ -25,4 +25,4 @@
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
-device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1450' \
- -machine 'type=pc+pve0'
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/q35-ide.conf.cmd b/src/test/cfg2cmd/q35-ide.conf.cmd
index 475e58d9..9af48002 100644
--- a/src/test/cfg2cmd/q35-ide.conf.cmd
+++ b/src/test/cfg2cmd/q35-ide.conf.cmd
@@ -41,5 +41,5 @@
-blockdev '{"detect-zeroes":"on","discard":"ignore","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"on","discard":"ignore","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"on","discard":"ignore","driver":"file","filename":"/var/lib/vz/images/100/vm-100-disk-2.qcow2","node-name":"ec11e0572184321efc5835152b95d5d","read-only":false},"node-name":"fc11e0572184321efc5835152b95d5d","read-only":false},"node-name":"drive-scsi0","read-only":false,"throttle-group":"throttle-drive-scsi0"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,device_id=drive-scsi0,bootindex=100,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=q35+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=q35+pve1'
diff --git a/src/test/cfg2cmd/q35-linux-hostpci-mapping.conf.cmd b/src/test/cfg2cmd/q35-linux-hostpci-mapping.conf.cmd
index b0c3e587..7413a651 100644
--- a/src/test/cfg2cmd/q35-linux-hostpci-mapping.conf.cmd
+++ b/src/test/cfg2cmd/q35-linux-hostpci-mapping.conf.cmd
@@ -35,5 +35,5 @@
-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve1'
diff --git a/src/test/cfg2cmd/q35-linux-hostpci-multifunction.conf.cmd b/src/test/cfg2cmd/q35-linux-hostpci-multifunction.conf.cmd
index b4aa46f5..f8435778 100644
--- a/src/test/cfg2cmd/q35-linux-hostpci-multifunction.conf.cmd
+++ b/src/test/cfg2cmd/q35-linux-hostpci-multifunction.conf.cmd
@@ -35,5 +35,5 @@
-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve1'
diff --git a/src/test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf.cmd b/src/test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf.cmd
index 6c4937c7..b314b8ad 100644
--- a/src/test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf.cmd
+++ b/src/test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf.cmd
@@ -34,5 +34,5 @@
-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve1'
diff --git a/src/test/cfg2cmd/q35-linux-hostpci.conf.cmd b/src/test/cfg2cmd/q35-linux-hostpci.conf.cmd
index 19e6ba3c..b6914255 100644
--- a/src/test/cfg2cmd/q35-linux-hostpci.conf.cmd
+++ b/src/test/cfg2cmd/q35-linux-hostpci.conf.cmd
@@ -40,5 +40,5 @@
-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve1'
diff --git a/src/test/cfg2cmd/q35-simple.conf.cmd b/src/test/cfg2cmd/q35-simple.conf.cmd
index e3f712c3..9cdb5bdb 100644
--- a/src/test/cfg2cmd/q35-simple.conf.cmd
+++ b/src/test/cfg2cmd/q35-simple.conf.cmd
@@ -28,5 +28,5 @@
-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve0'
+ -device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'pflash0=pflash0,pflash1=drive-efidisk0,type=q35+pve1'
diff --git a/src/test/cfg2cmd/seabios_serial.conf.cmd b/src/test/cfg2cmd/seabios_serial.conf.cmd
index 8fc0509b..ce2d7cf2 100644
--- a/src/test/cfg2cmd/seabios_serial.conf.cmd
+++ b/src/test/cfg2cmd/seabios_serial.conf.cmd
@@ -31,5 +31,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/var/lib/vz/images/8006/vm-8006-disk-0.qcow2","node-name":"ecd04be4259153b8293415fefa2a84c","read-only":false},"node-name":"fcd04be4259153b8293415fefa2a84c","read-only":false},"node-name":"drive-scsi0","read-only":false,"throttle-group":"throttle-drive-scsi0"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,device_id=drive-scsi0,bootindex=100,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'smm=off,type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'smm=off,type=pc+pve1'
diff --git a/src/test/cfg2cmd/simple-btrfs.conf.cmd b/src/test/cfg2cmd/simple-btrfs.conf.cmd
index f80421ad..b73aae79 100644
--- a/src/test/cfg2cmd/simple-btrfs.conf.cmd
+++ b/src/test/cfg2cmd/simple-btrfs.conf.cmd
@@ -40,5 +40,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"raw","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/butter/bread/images/8006/vm-8006-disk-0/disk.raw","node-name":"e7487c01d831e2b51a5446980170ec9","read-only":false},"node-name":"f7487c01d831e2b51a5446980170ec9","read-only":false},"node-name":"drive-scsi3","read-only":false,"throttle-group":"throttle-drive-scsi3"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=3,drive=drive-scsi3,id=scsi3,device_id=drive-scsi3,write-cache=off' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/simple-disk-passthrough.conf.cmd b/src/test/cfg2cmd/simple-disk-passthrough.conf.cmd
index 987a6c82..2b3a22e5 100644
--- a/src/test/cfg2cmd/simple-disk-passthrough.conf.cmd
+++ b/src/test/cfg2cmd/simple-disk-passthrough.conf.cmd
@@ -36,5 +36,5 @@
-blockdev '{"detect-zeroes":"on","discard":"ignore","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"on","discard":"ignore","driver":"raw","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"on","discard":"ignore","driver":"file","filename":"/mnt/file.raw","node-name":"e234a4e3b89ac3adac9bdbf0c3dd6b4","read-only":false},"node-name":"f234a4e3b89ac3adac9bdbf0c3dd6b4","read-only":false},"node-name":"drive-scsi1","read-only":false,"throttle-group":"throttle-drive-scsi1"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=1,drive=drive-scsi1,id=scsi1,device_id=drive-scsi1,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/simple-rbd.conf.cmd b/src/test/cfg2cmd/simple-rbd.conf.cmd
index b848672c..29dfaacc 100644
--- a/src/test/cfg2cmd/simple-rbd.conf.cmd
+++ b/src/test/cfg2cmd/simple-rbd.conf.cmd
@@ -52,5 +52,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"raw","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"host_device","filename":"/dev/rbd-pve/fc4181a6-56eb-4f68-b452-8ba1f381ca2a/cpool/vm-8006-disk-0","node-name":"eb0b017124a47505c97a5da052e0141","read-only":false},"node-name":"fb0b017124a47505c97a5da052e0141","read-only":false},"node-name":"drive-scsi7","read-only":false,"throttle-group":"throttle-drive-scsi7"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=7,drive=drive-scsi7,id=scsi7,device_id=drive-scsi7,write-cache=off' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/simple-virtio-blk.conf.cmd b/src/test/cfg2cmd/simple-virtio-blk.conf.cmd
index a9acb0cf..efec4a20 100644
--- a/src/test/cfg2cmd/simple-virtio-blk.conf.cmd
+++ b/src/test/cfg2cmd/simple-virtio-blk.conf.cmd
@@ -31,5 +31,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/var/lib/vz/images/8006/vm-8006-disk-0.qcow2","node-name":"edd19f6c1b3a6d5a6248c3376a91a16","read-only":false},"node-name":"fdd19f6c1b3a6d5a6248c3376a91a16","read-only":false},"node-name":"drive-virtio0","read-only":false,"throttle-group":"throttle-drive-virtio0"}' \
-device 'virtio-blk-pci,drive=drive-virtio0,id=virtio0,bus=pci.0,addr=0xa,iothread=iothread-virtio0,bootindex=100,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/simple-zfs-over-iscsi.conf.cmd b/src/test/cfg2cmd/simple-zfs-over-iscsi.conf.cmd
index 4fa6a5a9..21bfd638 100644
--- a/src/test/cfg2cmd/simple-zfs-over-iscsi.conf.cmd
+++ b/src/test/cfg2cmd/simple-zfs-over-iscsi.conf.cmd
@@ -40,5 +40,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"raw","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"iscsi","lun":0,"node-name":"e915a332310039f7a3feed6901eb5da","portal":"127.0.0.1","read-only":false,"target":"iqn.2019-10.org.test:foobar","transport":"tcp"},"node-name":"f915a332310039f7a3feed6901eb5da","read-only":false},"node-name":"drive-scsi3","read-only":false,"throttle-group":"throttle-drive-scsi3"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=3,drive=drive-scsi3,id=scsi3,device_id=drive-scsi3,write-cache=off' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
diff --git a/src/test/cfg2cmd/simple1.conf.cmd b/src/test/cfg2cmd/simple1.conf.cmd
index 49b848f2..eef2868b 100644
--- a/src/test/cfg2cmd/simple1.conf.cmd
+++ b/src/test/cfg2cmd/simple1.conf.cmd
@@ -31,5 +31,5 @@
-blockdev '{"detect-zeroes":"unmap","discard":"unmap","driver":"throttle","file":{"cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"qcow2","file":{"aio":"io_uring","cache":{"direct":true,"no-flush":false},"detect-zeroes":"unmap","discard":"unmap","driver":"file","filename":"/var/lib/vz/images/8006/vm-8006-disk-0.qcow2","node-name":"ecd04be4259153b8293415fefa2a84c","read-only":false},"node-name":"fcd04be4259153b8293415fefa2a84c","read-only":false},"node-name":"drive-scsi0","read-only":false,"throttle-group":"throttle-drive-scsi0"}' \
-device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,device_id=drive-scsi0,bootindex=100,write-cache=on' \
-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/usr/libexec/qemu-server/pve-bridge,downscript=/usr/libexec/qemu-server/pve-bridgedown,vhost=on' \
- -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300' \
- -machine 'type=pc+pve0'
+ -device 'virtio-net-pci,mac=A2:C0:43:77:08:A0,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=300,host_mtu=1500' \
+ -machine 'type=pc+pve1'
--
2.47.2
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