>dpkg -l | grep -P '^ii|^hi' | grep -P 'qemu|xen'
ii  libxenfsutl4.21:amd64                4.21.0-1+ub26u04.2                amd64        xen-utils-4.21 companion libs
ii  libxenmisc4.21:amd64                 4.21.0-1+ub26u04.2                amd64        Public libs for Xen
ii  libxenstore4.0:amd64                 4.21.0-1+ub26u04.2                amd64        Xenstore communications library for Xen
ii  libxentoolcore1:amd64                4.21.0-1+ub26u04.2                amd64        helper for qemu & libxenstore
ii  qemuu                                9.1.0+l0-1+ub26u04.2              amd64        qemu-system-i386 (9.1.0/xen-4.21) with 9pfs support
ii  xen-hypervisor-4.21-amd64            4.21.0-1+ub26u04.2                amd64        Xen Hypervisor on AMD64
ii  xen-system-amd64                     4.21.0-1+ub26u04.2                amd64        Xen System on AMD64 (meta-package)
ii  xen-utils-4.21                       4.21.0-1+ub26u04.2                amd64        XEN administrative tools
ii  xen-utils-common                     4.21.0-1+ub26u04.2                all          Xen administrative tools - common files
ii  xenstore-utils                       4.21.0-1+ub26u04.2                amd64        Xenstore command line utilities for Xen

>dpkg-deb -I xen-utils-common_4.21.0-1+ub26u04.2_all.deb
 new Debian package, version 2.0.
 size 208942 bytes: control archive=4306 bytes.
    1128 bytes,    39 lines      conffiles
     522 bytes,    15 lines      control
    6242 bytes,    77 lines      md5sums
    7416 bytes,   161 lines   *  postinst             #!/bin/sh
    1297 bytes,    49 lines   *  postrm               #!/bin/sh
     298 bytes,    23 lines   *  preinst              #!/bin/sh
     427 bytes,     7 lines   *  prerm                #!/bin/sh
 Package: xen-utils-common
 Source: xen
 Version: 4.21.0-1+ub26u04.2
 Architecture: all
 Maintainer: Debian Xen Team 
 Installed-Size: 457
 Depends: lsb-base, python3, udev, xenstore-utils, ucf
 Section: kernel
 Priority: optional
 Description: Xen administrative tools - common files
  The userspace tools to manage a system virtualized through the Xen virtual
  machine monitor.
  .
  This package is only required on the host system (Domain 0) and not on the
  virtual guest systems (Domain U).

>dpkg-deb -I qemuu_9.1.0+l0-1+ub26u04.2_amd64.deb
 new Debian package, version 2.0.
 size 26752018 bytes: control archive=13893 bytes.
    1674 bytes,    12 lines      control
   42262 bytes,   498 lines      md5sums
 Package: qemuu
 Source: xen (4.21.0-1+ub26u04.2)
 Version: 9.1.0+l0-1+ub26u04.2
 Architecture: amd64
 Maintainer: Debian Xen Team 
 Installed-Size: 355837
 Depends: libaio1t64 (>= 0.3.93), libasound2t64 (>= 1.0.16), libbpf1 (>= 1:0.0.8), libbrlapi0.8 (>= 6.7), libbz2-1.0, libc6 (>= 2.42), libcacard0 (>= 2.2), libcap-ng0 (>= 0.7.9), libcapstone5 (>= 5), libcurl3t64-gnutls (>= 7.16.3), libdw1t64 (>= 0.158), libepoxy0 (>= 1.3), libfdt1 (>= 1.7.2), libfuse3-4 (>= 3.17.2), libgbm1 (>= 12.0.0~0), libgfapi0 (>= 11.1), libglib2.0-0t64 (>= 2.83.0), libgnutls30t64 (>= 3.8.6), libibverbs1 (>= 1.1.6), libiscsi7 (>= 1.18.0), libjpeg8 (>= 8c), libkeyutils1 (>= 1.6), liblzo2-2 (>= 2.02), libncursesw6 (>= 6), libnfs14 (>= 4.0.0), libnuma1 (>= 2.0.15), libpixman-1-0 (>= 0.25.2), libpng16-16t64 (>= 1.6.46), libpulse0 (>= 0.99.1), librados2 (>= 0.72.2), librbd1 (>= 19.2.1-0ubuntu3), librdmacm1t64 (>= 1.0.15), libsasl2-2 (>= 2.1.28+dfsg1), libsdl2-2.0-0 (>= 2.0.12), libsdl2-image-2.0-0 (>= 2.0.5), libseccomp2 (>= 2.1.0), libselinux1 (>= 3.1~), libslirp0 (>= 4.7.0), libsndio7.0 (>= 1.8.1), libspice-server1 (>= 0.14.2), libssh-4 (>= 0.8.4), libtinfo6 (>= 6), libudev1 (>= 183), liburing2 (>= 2.3), libusb-1.0-0 (>= 2:1.0.23~), libusbredirparser1t64 (>= 0.8.0), libvdeplug2t64 (>= 4.0.1), libvirglrenderer1 (>= 1.0.0), libxenmisc4.21 (>= 4.21.0), libxenstore4.0 (>= 4.16.0), libxentoolcore1 (>= 4.21.0), libxkbcommon0 (>= 0.5.0), libzstd1 (>= 1.5.5), zlib1g (>= 1:1.2.0)
 Provides: qemu-system-i386
 Section: admin
 Priority: optional
 Description: qemu-system-i386 (9.1.0/xen-4.21) with 9pfs support
  Warning: This is a custom testing build of Xen.

>cat /etc/os-release
PRETTY_NAME="Ubuntu Resolute Raccoon (development branch)"
NAME="Ubuntu"
VERSION_ID="26.04"
VERSION="26.04 (Resolute Raccoon)"
VERSION_CODENAME=resolute
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=resolute
LOGO=ubuntu-logo

>cat /etc/debian_version
forky/sid

>xl dmesg | head -n135
 __  __            _  _    ____  _   ___
 \ \/ /___ _ __   | || |  |___ \/ | / _ \
  \  // _ \ '_ \  | || |_   __) | || | | |
  /  \  __/ | | | |__   _| / __/| || |_| |
 /_/\_\___|_| |_|    |_|(_)_____|_(_)___/

(XEN) Xen version 4.21.0 (pbuser@dynavirt.com) (gcc (Ubuntu 15.2.0-9ubuntu1) 15.2.0) debug=n Tue Dec  9 01:46:49 UTC 2025
(XEN) Latest ChangeSet: 16e22efbded42b56d0-x86/amd: Fix race editing DE_CFG-Wed 3 Dec 2025 02:41
(XEN) build-id: 88195475afa9a4c7bf30446ed720026ab749f2d7
(XEN) CPU Vendor: Intel, Family 6 (0x6), Model 58 (0x3a), Stepping 9 (raw 000306a9)
(XEN) BSP microcode revision: 0x0000000c
(XEN) microcode: CPU0 updated from revision 0xc to 0x21, date = 2019-02-13
(XEN) Bootloader: GRUB 2.06-13+deb12u1
(XEN) Command line: placeholder dom0_mem=1536M,max:1584M guest_loglvl=all loglvl=all console=vga vga=gfx-1280x1024x16 conring_size=48k sched=credit2 cpufreq=none com1=115200,8n1 console=com1 ucode=scan xpti=false dom0_max_vcpus=4 dom0_vcpus_pin
(XEN) Xen image load base address: 0xda600000
(XEN) Video information:
(XEN)  VGA is graphics mode 1280x1024, 16 bpp
(XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN)  EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  [0000000000000000, 000000000009dbff] (usable)
(XEN)  [000000000009f800, 000000000009ffff] (reserved)
(XEN)  [00000000000f0000, 00000000000fffff] (reserved)
(XEN)  [0000000000100000, 00000000daf7ffff] (usable)
(XEN)  [00000000daf80000, 00000000dafa2fff] (ACPI NVS)
(XEN)  [00000000dafa3000, 00000000dafdffff] (ACPI data)
(XEN)  [00000000dafe0000, 00000000daffffff] (reserved)
(XEN)  [00000000f4000000, 00000000f7ffffff] (reserved)
(XEN)  [00000000fec00000, 00000000ffffffff] (reserved)
(XEN)  [0000000100000000, 000000081fdfffff] (usable)
(XEN) ACPI: RSDP 000F7920, 0014 (r0 GBT   )
(XEN) ACPI: RSDT DAFA3040, 0054 (r1 GBT    GBTUACPI 42302E31 GBTU  1010101)
(XEN) ACPI: FACP DAFA3100, 0074 (r1 GBT    GBTUACPI 42302E31 GBTU  1010101)
(XEN) ACPI: DSDT DAFA31C0, 4D4C (r1 GBT    GBTUACPI     1000 MSFT  4000000)
(XEN) ACPI: FACS DAF80000, 0040
(XEN) ACPI: MSDM DAFA8080, 0055 (r3 GBT    GBTUACPI 42302E31 GBTU  1010101)
(XEN) ACPI: HPET DAFA8140, 0038 (r1 GBT    GBTUACPI 42302E31 GBTU       98)
(XEN) ACPI: MCFG DAFA81C0, 003C (r1 GBT    GBTUACPI 42302E31 GBTU  1010101)
(XEN) ACPI: ASPT DAFA8300, 0034 (r7 GBT    PerfTune 312E3042 UTBG  1010101)
(XEN) ACPI: SSPT DAFA8340, 2380 (r1 GBT    SsptHead 312E3042 UTBG  1010101)
(XEN) ACPI: EUDS DAFAA6C0, 00C0 (r1 GBT                    0             0)
(XEN) ACPI: MATS DAFAA780, 0034 (r1 GBT                    0             0)
(XEN) ACPI: TAMG DAFAA7E0, 0CFA (r1 GBT    GBT   B0 5455312E BG 53450101)
(XEN) ACPI: APIC DAFA7F80, 00BC (r1 GBT    GBTUACPI 42302E31 GBTU  1010101)
(XEN) ACPI: SSDT DAFAB500, 269C (r1  INTEL PPM RCM  80000001 INTL 20061109)
(XEN) ACPI: MATS DAFADBC0, AAE6 (r1        MATS RCM 80000001 INTL 20061109)
(XEN) System RAM: 32685MB (33469556kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-000000081fe00000
(XEN) Domain heap initialised
(XEN) Allocated console ring of 64 KiB.
(XEN) found SMP MP-table at 000f5d30
(XEN) DMI 2.4 present.
(XEN) PCI: MCFG configuration 0: base f4000000 segment 0000 buses 00 - 3f
(XEN) PCI: MCFG area at f4000000 reserved in E820
(XEN) PCI: Using MCFG for segment 0000 bus 00-3f
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x408 (24 bits)
(XEN) ACPI: SLEEP INFO: pm1x_cnt[1:404,1:0], pm1x_evt[1:400,1:0]
(XEN) ACPI:             wakeup_vec[daf8000c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) SMP: Allowing 8 CPUs (0 hotplug CPUs)
(XEN) IRQ limits: 24 GSI, 1640 MSI/MSI-X
(XEN) Switched to APIC driver x2apic_mixed
(XEN) CPU0: 1600 ... 3400 MHz
(XEN) xstate: size: 0x340 and states: 0x7
(XEN) CPU0: Intel machine check reporting enabled
(XEN) Speculative mitigation facilities:
(XEN)   Hardware hints:
(XEN)   Hardware features: IBPB IBRS STIBP SSBD L1D_FLUSH MD_CLEAR
(XEN)   Compiled-in support: INDIRECT_THUNK RETURN_THUNK SHADOW_PAGING HARDEN_ARRAY HARDEN_BRANCH HARDEN_GUEST_ACCESS HARDEN_LOCK
(XEN)   Xen settings: BTI-Thunk: RETPOLINE, SPEC_CTRL: IBRS- STIBP- SSBD-, Other: IBPB-ctxt L1D_FLUSH VERW BRANCH_HARDEN
(XEN)   L1TF: believed vulnerable, maxphysaddr L1D 46, CPUID 36, Safe address 1000000000
(XEN)   Support for HVM VMs: MSR_SPEC_CTRL MSR_VIRT_SPEC_CTRL RSB EAGER_FPU
(XEN)   Support for PV VMs: MSR_SPEC_CTRL EAGER_FPU VERW
(XEN)   XPTI (64-bit PV only): Dom0 disabled, DomU disabled (without PCID)
(XEN)   PV L1TF shadowing: Dom0 disabled, DomU enabled
(XEN) Using scheduler: SMP Credit Scheduler rev2 (credit2)
(XEN) Initializing Credit2 scheduler
(XEN)  load_precision_shift: 18
(XEN)  load_window_shift: 30
(XEN)  underload_balance_tolerance: 0
(XEN)  overload_balance_tolerance: -3
(XEN)  runqueues arrangement: socket
(XEN)  cap enforcement granularity: 10ms
(XEN) load tracking window length 1073741824 ns
(XEN) Using IDT event delivery
(XEN) Platform timer is 14.318MHz HPET
(XEN) Detected 3392.290 MHz processor.
(XEN) Freed 1024kB unused BSS memory
(XEN) alt table ffff82d04048bff8 -> ffff82d0404a1420
(XEN) I/O virtualisation disabled
(XEN) nr_sockets: 1
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) Enabling APIC mode.  Using 1 I/O APICs
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using old ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) TSC deadline timer enabled
(XEN) Wallclock source: CMOS RTC
(XEN) mwait-idle: MWAIT substates: 0x1120
(XEN) mwait-idle: v0.4.1 model 0x3a
(XEN) mwait-idle: lapic_timer_reliable_states 0xffffffff
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN) HVM: ASIDs enabled
(XEN) VMX: Disabling executable EPT superpages due to CVE-2018-12207
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB
(XEN) microcode: CPU2 updated from revision 0xc to 0x21, date = 2019-02-13
(XEN) microcode: CPU4 updated from revision 0xc to 0x21, date = 2019-02-13
(XEN) microcode: CPU6 updated from revision 0xc to 0x21, date = 2019-02-13
(XEN) Brought up 8 CPUs
(XEN) Scheduling granularity: cpu, 1 CPU per sched-resource
(XEN) Initializing Credit2 scheduler
(XEN)  load_precision_shift: 18

>brctl show
bridge name	bridge id		STP enabled	interfaces
br0		8000.ea1def688304	no		eth0
							vif1.0
							vif2.0

>qemu-system-i386 -version
QEMU emulator version 9.1.0
Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers

>gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-linux-gnu/15/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 15.2.0-9ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-15/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust,cobol,algol68 --prefix=/usr --with-gcc-major-version-only --program-suffix=-15 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-libstdcxx-backtrace --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-15-B1lSOY/gcc-15-15.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-15-B1lSOY/gcc-15-15.2.0/debian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-serialization=2
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.2.0 (Ubuntu 15.2.0-9ubuntu1) 

>vgchange -ay z68vm
  48 logical volume(s) in volume group "z68vm" now active

>systemctl status dnsmasq

>systemctl status xendomains
● xendomains.service - Xendomains - start and stop guests on boot and shutdown
     Loaded: loaded (/usr/lib/systemd/system/xendomains.service; enabled; preset: enabled)
     Active: active (exited) since Thu 2025-12-18 11:00:17 PST; 3min 1s ago
 Invocation: 375a61c884dd42c58fe4cded433139d1
   Main PID: 678 (code=exited, status=0/SUCCESS)
      Tasks: 4 (limit: 1570)
     Memory: 5.1M (peak: 15.4M)
        CPU: 2.715s
     CGroup: /system.slice/xendomains.service
             ├─ 944 /usr/lib/xen-4.21/bin/xl create --quiet --defconfig /etc/xen/auto/a_ub2604
             └─1427 /usr/lib/xen-4.21/bin/xl create --quiet --defconfig /etc/xen/auto/b_booky

Dec 18 11:00:15 ub26xen root[1373]: /etc/xen/scripts/block: Writing backend/vbd/2/51792/physical-device-path /dev/dm-7 to xenstore.
Dec 18 11:00:15 ub26xen root[1375]: /etc/xen/scripts/block: Writing backend/vbd/2/51792/hotplug-status connected to xenstore.
Dec 18 11:00:15 ub26xen root[1392]: /etc/xen/scripts/vif-bridge: online type_if=vif XENBUS_PATH=backend/vif/2/0
Dec 18 11:00:16 ub26xen root[1413]: /etc/xen/scripts/vif-bridge: setting vif2.0 MTU to 1500
Dec 18 11:00:16 ub26xen root[1415]: /etc/xen/scripts/vif-bridge: Writing /local/domain/2/device/vif/0/mtu 1500 to xenstore.
Dec 18 11:00:16 ub26xen root[1417]: /etc/xen/scripts/vif-bridge: adding vif2.0 to bridge br0
Dec 18 11:00:16 ub26xen root[1423]: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif2.0, bridge br0.
Dec 18 11:00:16 ub26xen root[1424]: /etc/xen/scripts/vif-bridge: Writing backend/vif/2/0/hotplug-status connected to xenstore.
Dec 18 11:00:17 ub26xen xendomains[678]: Starting auto Xen domains: a_ub2604 b_booky *   [done]
Dec 18 11:00:17 ub26xen systemd[1]: Finished xendomains.service - Xendomains - start and stop guests on boot and shutdown.

>xl info
host                   : ub26xen
release                : 6.17.0-8-generic
version                : #8-Ubuntu SMP PREEMPT_DYNAMIC Fri Nov 14 21:44:46 UTC 2025
machine                : x86_64
nr_cpus                : 8
max_cpu_id             : 7
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 3392.290
hw_caps                : bfebfbff:77bae3ff:28100800:00000001:00000001:00000281:00000000:00000100
virt_caps              : pv hvm hap shadow gnttab-v1 gnttab-v2
total_memory           : 32685
free_memory            : 24878
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 21
xen_extra              : .0
xen_version            : 4.21.0
xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit2
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 16e22efbded42b56d0-x86/amd: Fix race editing DE_CFG-Wed 3 Dec 2025 02:41
xen_commandline        : placeholder dom0_mem=1536M,max:1584M guest_loglvl=all loglvl=all console=vga vga=gfx-1280x1024x16 conring_size=48k sched=credit2 cpufreq=none com1=115200,8n1 console=com1 ucode=scan xpti=false dom0_max_vcpus=4 dom0_vcpus_pin
cc_compiler            : gcc (Ubuntu 15.2.0-9ubuntu1) 15.2.0
cc_compile_by          : pbuser
cc_compile_domain      : dynavirt.com
cc_compile_date        : Tue Dec  9 01:46:49 UTC 2025
build_id               : 88195475afa9a4c7bf30446ed720026ab749f2d7
xend_config_format     : 4

>xl list
Name                                        ID   Mem VCPUs	State	Time(s)
Domain-0                                     0  1536     4     r-----      28.8
ub2604                                       1  1848     4     -b----       8.9
bookyz                                       2  4096     6     -b----       9.9

>iptables -S -t nat
-P PREROUTING ACCEPT
-P INPUT ACCEPT
-P OUTPUT ACCEPT
-P POSTROUTING ACCEPT

>systemctl list-unit-files | grep "enabled         enabled" | sort
blk-availability.service                                                  enabled         enabled
chrony.service                                                            enabled         enabled
console-setup.service                                                     enabled         enabled
cron.service                                                              enabled         enabled
dm-event.socket                                                           enabled         enabled
dmesg.service                                                             enabled         enabled
dpkg-db-backup.timer                                                      enabled         enabled
e2scrub_all.timer                                                         enabled         enabled
e2scrub_reap.service                                                      enabled         enabled
getty@.service                                                            enabled         enabled
grub-initrd-fallback.service                                              enabled         enabled
grub2-common.service                                                      enabled         enabled
keyboard-setup.service                                                    enabled         enabled
logrotate.timer                                                           enabled         enabled
lvm2-lvmpolld.socket                                                      enabled         enabled
lvm2-monitor.service                                                      enabled         enabled
motd-news.timer                                                           enabled         enabled
networkd-dispatcher.service                                               enabled         enabled
plocate-updatedb.timer                                                    enabled         enabled
remote-fs.target                                                          enabled         enabled
rsyslog.service                                                           enabled         enabled
setvtrgb.service                                                          enabled         enabled
ssh.socket                                                                enabled         enabled
sshd-keygen.service                                                       enabled         enabled
systemd-network-generator.service                                         enabled         enabled
systemd-networkd-wait-online.service                                      enabled         enabled
systemd-networkd.service                                                  enabled         enabled
systemd-networkd.socket                                                   enabled         enabled
systemd-pstore.service                                                    enabled         enabled
systemd-resolved.service                                                  enabled         enabled
thermald.service                                                          enabled         enabled
ua-reboot-cmds.service                                                    enabled         enabled
ua-timer.timer                                                            enabled         enabled
ubuntu-advantage.service                                                  enabled         enabled
xen-init-dom0.service                                                     enabled         enabled
xen-qemu-dom0-disk-backend.service                                        enabled         enabled
xen-watchdog.service                                                      enabled         enabled
xenconsoled.service                                                       enabled         enabled
xendomains.service                                                        enabled         enabled
xenstored.service                                                         enabled         enabled

>ps aux | grep xen
root          45  0.0  0.0      0     0 ?        S    10:59   0:00 [xenbus]
root          46  0.0  0.0      0     0 ?        S    10:59   0:00 [xenwatch]
root          59  0.0  0.0      0     0 ?        S    10:59   0:00 [xen-balloon]
root         653  0.0  0.1   3564  2540 ?        S    11:00   0:00 /sbin/xenstored --pid-file /var/run/xen/xenstored.pid
root         668  0.0  0.4  72508  6032 ?        Ssl  11:00   0:00 /usr/sbin/xenconsoled -i --log=none --log-dir=/var/log/xen/console
root         762  0.0  1.3 218756 19028 ?        Sl   11:00   0:00 /usr/bin/qemu-system-i386 -xen-domid 0 -xen-attach -name dom0 -nographic -M xenpv -daemonize -monitor /dev/null -serial /dev/null -parallel /dev/null -nodefaults -no-user-config -pidfile /var/run/xen/qemu-dom0.pid
root         944  0.0  0.1  72816  2804 ?        Ssl  11:00   0:00 /usr/lib/xen-4.21/bin/xl create --quiet --defconfig /etc/xen/auto/a_ub2604
root        1427  0.0  0.2  72816  2848 ?        Ssl  11:00   0:00 /usr/lib/xen-4.21/bin/xl create --quiet --defconfig /etc/xen/auto/b_booky
root        1460  0.0  0.1   3276  1608 ?        Ss   11:00   0:00 /usr/sbin/xenwatchdogd 30 15
root        1802  0.0  0.3   9372  5572 pts/2    S+   11:03   0:00 sudo ./dump_xen_trace.multi.4l tlviewer
root        1804  0.0  0.1   9372  2196 pts/3    Ss   11:03   0:00 sudo ./dump_xen_trace.multi.4l tlviewer
root        1805  0.0  0.1   3036  2024 pts/3    S+   11:03   0:00 /bin/sh /home/tlviewer/dump_xen_trace.multi.4l tlviewer
root        1873  0.0  0.1   6864  2544 pts/3    S+   11:03   0:00 grep xen

>networkctl 
IDX LINK   TYPE     OPERATIONAL SETUP
  1 lo     loopback carrier     unmanaged
  2 eth0   ether    enslaved    configured
  3 br0    bridge   routable    configured
  4 vif1.0 ether    enslaved    unmanaged
  5 vif2.0 ether    enslaved    unmanaged

5 links listed.

>lsmod 
Module                  Size  Used by
nf_tables             393216  0
binfmt_misc            24576  1
i915                 4931584  0
intel_rapl_msr         20480  0
intel_rapl_common      57344  1 intel_rapl_msr
polyval_clmulni        12288  0
ghash_clmulni_intel    12288  0
aesni_intel            94208  0
drm_buddy              28672  1 i915
ttm                   131072  1 i915
drm_display_helper    294912  1 i915
mei_pxp                16384  0
mei_hdcp               28672  0
cec                   106496  2 drm_display_helper,i915
gpio_ich               16384  0
rc_core                73728  1 cec
i2c_algo_bit           16384  1 i915
video                  77824  1 i915
mxm_wmi                12288  0
i2c_i801               36864  0
bridge                430080  0
i2c_smbus              20480  1 i2c_i801
i2c_mux                16384  1 i2c_i801
lpc_ich                32768  0
stp                    12288  1 bridge
mei_me                 53248  2
mei                   176128  5 mei_hdcp,mei_pxp,mei_me
llc                    16384  2 bridge,stp
input_leds             12288  0
mac_hid                12288  0
sch_fq_codel           24576  10
xen_pciback            94208  0
xen_netback            90112  4
xen_blkback            61440  14
xen_gntalloc           20480  0
xen_gntdev             45056  2
xen_evtchn             20480  3
efi_pstore             12288  0
xenfs                  16384  1
xen_privcmd            40960  50 xenfs
nfnetlink              20480  3 nf_tables
vsock_loopback         12288  0
vmw_vsock_virtio_transport_common    57344  1 vsock_loopback
vmw_vsock_vmci_transport    53248  0
vsock                  65536  5 vmw_vsock_virtio_transport_common,vsock_loopback,vmw_vsock_vmci_transport
vmw_vmci              106496  1 vmw_vsock_vmci_transport
dmi_sysfs              24576  0
ip_tables              36864  0
x_tables               65536  1 ip_tables
autofs4                57344  2
hid_generic            12288  0
usbhid                 77824  0
hid                   270336  2 usbhid,hid_generic
firewire_ohci          65536  0
serio_raw              20480  0
r8169                 143360  0
ahci                   49152  51
libahci                57344  1 ahci
realtek                49152  1
firewire_core         233472  1 firewire_ohci
crc_itu_t              12288  1 firewire_core
wmi                    28672  2 video,mxm_wmi

>tree /etc/systemd/network 
/etc/systemd/network
├── 10-eth0-uplink.network
├── br0.netdev
└── br0.network

1 directory, 3 files

>grep -o -P 'menuentry_id_option.*{$' /boot/grub/grub.cfg | sed -e 's| {||'
menuentry 'Ubuntu GNU/Linux, with Xen 4.21-amd64 and Linux 6.17.0-8-generic
menuentry 'Ubuntu GNU/Linux, with Xen 4.21-amd64-xsm and Linux 6.17.0-8-generic
menuentry 'Ubuntu, with Linux 6.17.0-8-generic
menuentry 'UEFI Firmware Settings

>grep -P '^GRUB_DEFAULT' /etc/default/grub
GRUB_DEFAULT=0
GRUB_DEFAULT="0"

>systemd-analyze time
Startup finished in 11.240s (kernel) + 15.854s (userspace) = 27.095s 
multi-user.target reached after 15.854s in userspace.

>systemd-analyze blame
4.801s xendomains.service
2.317s dev-sda14.device
2.195s networkd-dispatcher.service
2.140s e2scrub_reap.service
 947ms dbus.service
 738ms systemd-resolved.service
 723ms lvm2-monitor.service
 706ms chrony.service
 668ms xenstored.service
 651ms mnt-zdum.mount
 642ms user@1000.service
 638ms rsyslog.service
 439ms keyboard-setup.service
 364ms systemd-udev-trigger.service
 361ms rc-local.service
 338ms xen-init-dom0.service
 337ms systemd-tmpfiles-setup-dev-early.service
 325ms systemd-networkd.service
 315ms grub-initrd-fallback.service
 276ms systemd-udevd.service
 273ms systemd-logind.service
 262ms systemd-journald.service
 261ms systemd-random-seed.service
 253ms grub2-common.service
 242ms systemd-networkd-persistent-storage.service
 241ms systemd-sysctl.service
 211ms systemd-modules-load.service
 188ms systemd-journal-flush.service
 171ms ssh.service
 168ms dev-disk-by\x2duuid-4ab040ac\x2d8f44\x2d4090\x2dac57\x2d242339b4a6f5.swap
 129ms systemd-tmpfiles-setup.service
 116ms dev-mqueue.mount
 116ms proc-xen.mount
 114ms run-lock.mount
 111ms systemd-udev-load-credentials.service
 111ms sys-kernel-debug.mount
 111ms systemd-remount-fs.service
 103ms sys-kernel-tracing.mount
  95ms blk-availability.service
  88ms kmod-static-nodes.service
  80ms xenconsoled.service
  78ms modprobe@configfs.service
  76ms modprobe@drm.service
  75ms modprobe@efi_pstore.service
  72ms console-setup.service
  70ms systemd-binfmt.service
  68ms modprobe@fuse.service
  67ms setvtrgb.service
  60ms data1.mount
  42ms systemd-network-generator.service
  34ms proc-sys-fs-binfmt_misc.mount
  32ms xen-qemu-dom0-disk-backend.service
  28ms systemd-tmpfiles-setup-dev.service
  26ms sys-fs-fuse-connections.mount
  25ms sys-kernel-config.mount
  25ms xen-watchdog.service
  21ms systemd-user-sessions.service
  20ms tmp.mount
  18ms user-runtime-dir@1000.service

>grep XEN_ /boot/config-6.17.0-8-generic | sort
# CONFIG_XEN_DEBUG_FS is not set
# CONFIG_XEN_PVCALLS_BACKEND is not set
# CONFIG_XEN_VIRTIO_FORCE_GRANT is not set
CONFIG_DRM_XEN_FRONTEND=m
CONFIG_HVC_XEN_FRONTEND=y
CONFIG_INPUT_XEN_KBDDEV_FRONTEND=m
CONFIG_NETXEN_NIC=m
CONFIG_SND_XEN_FRONTEND=m
CONFIG_USB_XEN_HCD=m
CONFIG_XEN_512GB=y
CONFIG_XEN_ACPI=y
CONFIG_XEN_ACPI_PROCESSOR=y
CONFIG_XEN_AUTO_XLATE=y
CONFIG_XEN_BACKEND=y
CONFIG_XEN_BALLOON=y
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_DEV_EVTCHN=m
CONFIG_XEN_DOM0=y
CONFIG_XEN_EFI=y
CONFIG_XEN_FBDEV_FRONTEND=m
CONFIG_XEN_FRONT_PGDIR_SHBUF=m
CONFIG_XEN_GNTDEV=m
CONFIG_XEN_GNTDEV_DMABUF=y
CONFIG_XEN_GRANT_DEV_ALLOC=m
CONFIG_XEN_GRANT_DMA_ALLOC=y
CONFIG_XEN_GRANT_DMA_OPS=y
CONFIG_XEN_HAVE_PVMMU=y
CONFIG_XEN_HAVE_VPMU=y
CONFIG_XEN_MCE_LOG=y
CONFIG_XEN_MEMORY_HOTPLUG_LIMIT=512
CONFIG_XEN_NETDEV_BACKEND=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_PCIDEV_BACKEND=m
CONFIG_XEN_PCIDEV_FRONTEND=m
CONFIG_XEN_PCI_STUB=y
CONFIG_XEN_PRIVCMD=m
CONFIG_XEN_PRIVCMD_EVENTFD=y
CONFIG_XEN_PV=y
CONFIG_XEN_PVCALLS_FRONTEND=m
CONFIG_XEN_PVH=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_PVHVM_GUEST=y
CONFIG_XEN_PVHVM_SMP=y
CONFIG_XEN_PV_DOM0=y
CONFIG_XEN_PV_MSR_SAFE=y
CONFIG_XEN_PV_SMP=y
CONFIG_XEN_SAVE_RESTORE=y
CONFIG_XEN_SCRUB_PAGES_DEFAULT=y
CONFIG_XEN_SCSI_BACKEND=m
CONFIG_XEN_SCSI_FRONTEND=m
CONFIG_XEN_SYMS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_UNPOPULATED_ALLOC=y
CONFIG_XEN_VIRTIO=y
CONFIG_XEN_WDT=m
CONFIG_XEN_XENBUS_FRONTEND=y

>tree /usr/lib/efi
/usr/lib/efi
├── xen-4.21-amd64.efi
└── xen-4.21-amd64-xsm.efi

1 directory, 2 files

>tree /boot
/boot
├── config-6.17.0-8-generic
├── efi
├── flask
│   └── xenpolicy-4.21-amd64-xsm
├── grub
│   ├── gfxblacklist.txt
│   ├── grub.cfg
│   ├── grubenv
│   └── unicode.pf2
├── initrd.img -> initrd.img-6.17.0-8-generic
├── initrd.img-6.17.0-8-generic
├── initrd.img.old -> initrd.img-6.17.0-8-generic
├── kcfg
│   ├── xen-4.21.config
│   └── xen-4.21-xsm.config
├── System.map-6.17.0-8-generic
├── vmlinuz -> vmlinuz-6.17.0-8-generic
├── vmlinuz-6.17.0-8-generic
├── vmlinuz.old -> vmlinuz-6.17.0-8-generic
├── xen-4.21-amd64.gz
└── xen-4.21-amd64-xsm.gz

5 directories, 17 files

>netstat -an | grep ^tcp
tcp        0      0 127.0.0.54:53           0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.1:6010          0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:5355            0.0.0.0:*               LISTEN     
tcp        0      0 192.168.1.11:22         192.168.1.107:45022     ESTABLISHED
tcp6       0      0 ::1:6010                :::*                    LISTEN     
tcp6       0      0 :::22                   :::*                    LISTEN     
tcp6       0      0 :::5355                 :::*                    LISTEN     
tcp6       0      0 2603:8000:683e:7f:58928 2620:2d:4002:1::101:80  TIME_WAIT