Xen host information:

#/usr/lib/grub2/x86_64-xen> cat /etc/*release
NAME="openSUSE Leap"
VERSION="15.5"
ID="opensuse-leap"
ID_LIKE="suse opensuse"
VERSION_ID="15.5"
PRETTY_NAME="openSUSE Leap 15.5"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:leap:15.5"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org/"
DOCUMENTATION_URL="https://en.opensuse.org/Portal:Leap"
LOGO="distributor-logo-Leap"

# rpm -qi grub2-x86_64-xen-2.06-150500.29.19.1.noarch
Name        : grub2-x86_64-xen
Version     : 2.06
Release     : 150500.29.19.1
Architecture: noarch
Install Date: Fri 15 Mar 2024 03:25:28 AM CET
Group       : System/Boot
Size        : 21336931
License     : GPL-3.0-or-later
Signature   : RSA/SHA256, Thu 29 Feb 2024 12:22:41 PM CET, Key ID 70af9e8139db7c82
Source RPM  : grub2-2.06-150500.29.19.1.src.rpm
Build Date  : Thu 29 Feb 2024 12:21:27 PM CET
Build Host  : h04-ch1c
Relocations : (not relocatable)
Packager    : https://www.suse.com/
Vendor      : SUSE LLC <https://www.suse.com/>
URL         : http://www.gnu.org/software/grub/
Summary     : Bootloader with support for Linux, Multiboot and more
Description :
The GRand Unified Bootloader (GRUB) is a highly configurable and customizable
bootloader with modular architecture.  It supports rich variety of kernel formats,
file systems, computer architectures and hardware devices.  This subpackage
provides support for XEN systems.
Distribution: SUSE Linux Enterprise 15


# rpm -qf /usr/lib/grub2/x86_64-xen/grub.xen
grub2-x86_64-xen-2.06-150500.29.19.1.noarch
-----------------------------------------------

## Bug Description 

When install VM on this xen host with "xen-pv" mode. the vnc console fails to show installation gui console and reports error messages "This VM has no graphic display device".

Sample xen vm configuration file:

  <?xml version="1.0"?>
  <domain type="xen">
    <name>openQA-SUT-8</name>
    <description>openQA WebUI: openqa.suse.de (8): 13823703-sle-15-SP5-Online-QR-x86_64-Build137.7-ext4@svirt-xen-pv</description>
    <memory unit="MiB">1024</memory>
    <vcpu>1</vcpu>
    <os>
      <type>linux</type>
      <kernel>/usr/lib/grub2/x86_64-xen/grub.xen</kernel>
      <boot dev="cdrom"/>
    </os>
    <features>
      <acpi/>
      <apic/>
      <pae/>
    </features>
    <devices>
      <disk type="file" device="cdrom">
        <driver name="qemu" type="raw"/>
        <target dev="sda" bus="scsi"/>
        <source file="/var/lib/libvirt/images/SLE-15-SP5-Online-x86_64-Build137.7-Media1.iso"/>
      </disk>
      <disk type="file" device="disk">
        <driver name="qemu" type="qcow2" cache="unsafe"/>
        <target dev="xvdb" bus="xen"/>
        <source file="/var/lib/libvirt/images/openQA-SUT-8b.img"/>
      </disk>
      <console type="pty">
        <target type="xen" port="0"/>
      </console>
      <graphics type="vnc" port="5908" autoport="no" listen="0.0.0.0" sharePolicy="force-shared" passwd="xxxxxx">
        <listen type="address" address="0.0.0.0"/>
      </graphics>
      <interface type="bridge">
        <virtualport type="openvswitch"/>
        <model type="netfront"/>
        <mac address="00:16:3e:xx:xx:xx"/>
        <source bridge="br0"/>
      </interface>
    </devices>
    <on_reboot>destroy</on_reboot>
  </domain>

Then, we can see many installation failures in our automation tests like below:

https://openqa.suse.de/tests/13823703#step/setup_libyui/1 [please see attached file as well]

I did some investigation and found that the issue might be caused by xen kernel binary file '/usr/lib/grub2/x86_64-xen/grub.xen'. the issue is gone if I use the one from older package 'grub2-x86_64-xen-2.06-150500.29.13.1.noarch.rpm', please see job https://openqa.suse.de/tests/13838259#step/setup_libyui/1.


Can you please check if any update of package grub2-x86_64-xen cause the problem?

Do let me know if any information required.