>dpkg -l | grep -P '^ii|^hi' | grep -P 'qemu|xen'
ii libxen-4.15:amd64 4.15.1-1+ub20u04.3 amd64 Public libs for Xen
ii libxenstore3.0:amd64 4.15.1-1+ub20u04.3 amd64 Xenstore communications library for Xen
ii libxentoolcore1:amd64 4.15.1-1+ub20u04.3 amd64 helper for qemu & libxenstore
ii qemuu 6.1.0+1-1+ub20u04.3 amd64 qemu-system-i386 (6.1.0/xen-4.15) with 9pfs support
ii xen-hypervisor-4.15-amd64 4.15.1-1+ub20u04.3 amd64 Xen Hypervisor on AMD64
ii xen-system-amd64 4.15.1-1+ub20u04.3 amd64 Xen System on AMD64 (meta-package)
ii xen-utils-4.15 4.15.1-1+ub20u04.3 amd64 XEN administrative tools
ii xen-utils-common 4.15.1-1+ub20u04.3 all Xen administrative tools - common files
ii xenstore-utils 4.15.1-1+ub20u04.3 amd64 Xenstore command line utilities for Xen
>dpkg-deb -I xen-utils-common_4.15.1-1+ub20u04.3_all.deb
new Debian package, version 2.0.
size 247084 bytes: control archive=4172 bytes.
1128 bytes, 39 lines conffiles
522 bytes, 15 lines control
5870 bytes, 73 lines md5sums
7396 bytes, 161 lines * postinst #!/bin/sh
1805 bytes, 56 lines * postrm #!/bin/sh
298 bytes, 23 lines * preinst #!/bin/sh
357 bytes, 7 lines * prerm #!/bin/sh
Package: xen-utils-common
Source: xen
Version: 4.15.1-1+ub20u04.3
Architecture: all
Maintainer: Debian Xen Team
Installed-Size: 475
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_6.1.0+1-1+ub20u04.3_amd64.deb
new Debian package, version 2.0.
size 22063196 bytes: control archive=10844 bytes.
1309 bytes, 12 lines control
32162 bytes, 386 lines md5sums
Package: qemuu
Source: xen (4.15.1-1+ub20u04.3)
Version: 6.1.0+1-1+ub20u04.3
Architecture: amd64
Maintainer: Debian Xen Team
Installed-Size: 266395
Depends: libaio1 (>= 0.3.93), libasound2 (>= 1.0.16), libbrlapi0.7, libbz2-1.0, libc6 (>= 2.29), libcacard0 (>= 2.2), libcap-ng0 (>= 0.7.9), libcurl3-gnutls (>= 7.16.3), libfuse3-3 (>= 3.2.3), libgcc-s1 (>= 4.7), libgfapi0 (>= 7.2), libglib2.0-0 (>= 2.39.4), libgnutls30 (>= 3.6.12), libiscsi7 (>= 1.18.0), libjpeg8 (>= 8c), liblzo2-2 (>= 2.02), libncursesw6 (>= 6), libnettle7, libnfs13 (>= 1.11.0), libnuma1 (>= 2.0.11), libpixman-1-0 (>= 0.19.6), libpng16-16 (>= 1.6.2-1), librados2 (>= 0.72.2), librbd1 (>= 15.2.14-0ubuntu0.20.04.1), libsasl2-2 (>= 2.1.27+dfsg), libsdl2-2.0-0 (>= 2.0.10), libseccomp2 (>= 2.1.0), libslirp0 (>= 4.0.0), libspice-server1 (>= 0.14.2), libssh-4 (>= 0.8.4), libtinfo6 (>= 6), libudev1 (>= 183), libusb-1.0-0 (>= 2:1.0.23~), libusbredirparser1 (>= 0.6), libvdeplug2, libxen-4.15 (>= 4.15.1), libxenstore3.0 (>= 4.2~), libxentoolcore1 (>= 4.15.1), libxkbcommon0 (>= 0.5.0), libzstd1 (>= 1.3.8), zlib1g (>= 1:1.2.0)
Provides: qemu-system-i386
Section: admin
Priority: optional
Description: qemu-system-i386 (6.1.0/xen-4.15) with 9pfs support
Warning: This is a custom testing build of Xen.
>cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.3 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.3 LTS"
VERSION_ID="20.04"
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"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
>cat /etc/debian_version
bullseye/sid
>xl dmesg | head -n135
__ __ _ _ _ ____ _
\ \/ /___ _ __ | || | / | ___| / |
\ // _ \ '_ \ | || |_ | |___ \ | |
/ \ __/ | | | |__ _|| |___) || |
/_/\_\___|_| |_| |_|(_)_|____(_)_|
(XEN) Xen version 4.15.1 (pbuser@hldns.com) (gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0) debug=n Fri Dec 3 20:04:48 PST 2021
(XEN) Latest ChangeSet: 544e547a63175ac6e-x86/P2M: deal with partial success of p2m_set_entry()-Tue 23 Nov 2021 04:26
(XEN) build-id: de24939e7a61b6439bc5dbe875d28c8c9a71ba3f
(XEN) Bootloader: GNU GRUB 0.97
(XEN) Command line: dom0_mem=700M,max:748M guest_loglvl=all loglvl=all sched=credit2 xsave=0 cpufreq=xen:performance console=vga vga=gfx-1280x1024x16 conring_size=48k xpti=false
(XEN) Xen image load base address: 0
(XEN) Video information:
(XEN) VGA is graphics mode 1280x1024, 16 bpp
(XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN) Found 3 MBR signatures
(XEN) Found 3 EDD information structures
(XEN) CPU Vendor: Intel, Family 6 (0x6), Model 23 (0x17), Stepping 10 (raw 0001067a)
(XEN) Xen-e820 RAM map:
(XEN) [0000000000000000, 000000000009dbff] (usable)
(XEN) [000000000009f800, 000000000009ffff] (reserved)
(XEN) [00000000000f0000, 00000000000fffff] (reserved)
(XEN) [0000000000100000, 00000000dfedffff] (usable)
(XEN) [00000000dfee0000, 00000000dfee1fff] (ACPI NVS)
(XEN) [00000000dfee2000, 00000000dfeeffff] (ACPI data)
(XEN) [00000000dfef0000, 00000000dfefffff] (reserved)
(XEN) [00000000f4000000, 00000000f7ffffff] (reserved)
(XEN) [00000000fec00000, 00000000ffffffff] (reserved)
(XEN) [0000000100000000, 000000011fffffff] (usable)
(XEN) New Xen image base address: 0xdf800000
(XEN) ACPI: RSDP 000F7100, 0014 (r0 GBT )
(XEN) ACPI: RSDT DFEE2040, 003C (r1 GBT GBTUACPI 42302E31 GBTU 1010101)
(XEN) ACPI: FACP DFEE20C0, 0074 (r1 GBT GBTUACPI 42302E31 GBTU 1010101)
(XEN) ACPI: DSDT DFEE2180, 4C86 (r1 GBT GBTUACPI 1000 MSFT 100000C)
(XEN) ACPI: FACS DFEE0000, 0040
(XEN) ACPI: HPET DFEE6F80, 0038 (r1 GBT GBTUACPI 42302E31 GBTU 98)
(XEN) ACPI: MCFG DFEE7000, 003C (r1 GBT GBTUACPI 42302E31 GBTU 1010101)
(XEN) ACPI: EUDS DFEE7040, 0000 (r1 GBT 0 0)
(XEN) ACPI: TAMG DFEE7560, 6852 (r1 GBT GBT B0 5455312E BG 20101)
(XEN) ACPI: APIC DFEE6E80, 0084 (r1 GBT GBTUACPI 42302E31 GBTU 1010101)
(XEN) System RAM: 4094MB (4192756kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-0000000120000000
(XEN) Domain heap initialised
(XEN) Allocated console ring of 64 KiB.
(XEN) vesafb: framebuffer at 0x00000000e0000000, mapped to 0xffff82c000201000, using 4096k, total 262144k
(XEN) vesafb: mode is 1280x1024x16, linelength=2560, font 8x16
(XEN) vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0
(XEN) found SMP MP-table at 000f5700
(XEN) DMI 2.4 present.
(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[dfee000c], 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) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000
(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 ACPI (MADT) for SMP configuration information
(XEN) SMP: Allowing 4 CPUs (2 hotplug CPUs)
(XEN) IRQ limits: 24 GSI, 392 MSI/MSI-X
(XEN) CPU0: 7500 ... 700 MHz
(XEN) CPU0: Intel machine check reporting enabled
(XEN) Unrecognised CPU model 0x17 - assuming vulnerable to LazyFPU
(XEN) Unrecognised CPU model 0x17 - assuming vulnerable to MDS
(XEN) Speculative mitigation facilities:
(XEN) Hardware hints:
(XEN) Hardware features:
(XEN) Compiled-in support: INDIRECT_THUNK SHADOW_PAGING
(XEN) Xen settings: BTI-Thunk RETPOLINE, SPEC_CTRL: No, Other: BRANCH_HARDEN
(XEN) L1TF: believed vulnerable, maxphysaddr L1D 36, CPUID 36, Safe address c00000000
(XEN) Support for HVM VMs: RSB EAGER_FPU
(XEN) Support for PV VMs: RSB EAGER_FPU
(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) Platform timer is 14.318MHz HPET
(XEN) Detected 3062.670 MHz processor.
(XEN) Freed 1024kB unused BSS memory
(XEN) alt table ffff82d040456430 -> ffff82d040464430
(XEN) I/O virtualisation disabled
(XEN) nr_sockets: 2
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) mwait-idle: does not run on family 6 model 23
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) HVM: ASIDs disabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) not detected
(XEN) alt table ffff82d040456430 -> ffff82d040464430
(XEN) Brought up 2 CPUs
(XEN) Scheduling granularity: cpu, 1 CPU per sched-resource
(XEN) Adding cpu 0 to runqueue 0
(XEN) First cpu on runqueue, activating
(XEN) Adding cpu 1 to runqueue 0
(XEN) mcheck_poll: Machine check polling timer started.
(XEN) HPET: 0 timers usable for broadcast (4 total)
(XEN) NX (Execute Disable) protection active
(XEN) Dom0 has maximum 416 PIRQs
(XEN) *** Building a PV Dom0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x3600000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 0000000110000000->0000000114000000 (157399 pages to be allocated)
(XEN) Init. ramdisk: 000000011ead7000->000000011ffffc00
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff81000000->ffffffff83600000
(XEN) Init. ramdisk: 0000000000000000->0000000000000000
(XEN) Phys-Mach map: 0000008000000000->000000800015e000
(XEN) Start info: ffffffff83600000->ffffffff836004b8
(XEN) Xenstore ring: 0000000000000000->0000000000000000
(XEN) Console ring: 0000000000000000->0000000000000000
>brctl show
bridge name bridge id STP enabled interfaces
br0 8000.00241d23f6ed no eth0
vif1.0
vif2.0
vif3.0
vif4.0
vif5.0
>qemu-system-i386 -version
QEMU emulator version 6.1.0
Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers
>gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.3.0-10ubuntu2' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)
>systemctl status lvm2-pvscan@8:39.service
● lvm2-pvscan@8:39.service - LVM event activation on device 8:39
Loaded: loaded (/lib/systemd/system/lvm2-pvscan@.service; static; vendor preset: enabled)
Active: active (exited) since Sat 2021-12-04 13:29:32 PST; 3min 47s ago
Docs: man:pvscan(8)
Process: 357 ExecStart=/sbin/lvm pvscan --cache --activate ay 8:39 (code=exited, status=0/SUCCESS)
Main PID: 357 (code=exited, status=0/SUCCESS)
Dec 04 13:29:21 xen2004 systemd[1]: Starting LVM event activation on device 8:39...
Dec 04 13:29:22 xen2004 lvm[357]: pvscan[357] PV /dev/sdc7 online, VG maxvm is complete.
Dec 04 13:29:22 xen2004 lvm[357]: pvscan[357] VG maxvm run autoactivation.
Dec 04 13:29:32 xen2004 lvm[357]: 62 logical volume(s) in volume group "maxvm" now active
Dec 04 13:29:32 xen2004 systemd[1]: Finished LVM event activation on device 8:39.
>systemctl status dnsmasq
>systemctl status xendomains
● xendomains.service - Xendomains - start and stop guests on boot and shutdown
Loaded: loaded (/lib/systemd/system/xendomains.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/xendomains.service.d
└─override.conf
Active: active (exited) since Sat 2021-12-04 13:29:50 PST; 3min 29s ago
Process: 1082 ExecStartPre=/bin/grep -q control_d /proc/xen/capabilities (code=exited, status=0/SUCCESS)
Process: 1089 ExecStartPre=/sbin/lvm pvscan --cache --activate ay 8:39 (code=exited, status=0/SUCCESS)
Process: 1101 ExecStart=/usr/lib/xen-4.15/bin/xendomains start (code=exited, status=0/SUCCESS)
Main PID: 1101 (code=exited, status=0/SUCCESS)
Tasks: 16 (limit: 677)
Memory: 14.7M
CGroup: /system.slice/xendomains.service
├─1388 /usr/bin/qemu-system-i386 -xen-domid 1 -no-shutdown -chardev socket,id=libxl-cmd,path=/run/xen/qmp-libxl-1,server=on,wait=off -mon chardev=libxl-cmd,mode=control -chardev socket,id=libxenstat-cmd,path=/run/xen/qmp-libxenstat-1,server=on,wait=off -mon chardev=libxenstat-cmd,mode=control -nodefaults -no-user-config -xen-attach -name ub2004 -vnc 127.0.0.1:0,to=99 -display none -k en-us -machine xenpv -m 404
├─1456 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/a_ub2004
├─1723 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/b_a8respin
├─2294 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/c_mga8
├─2819 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/e_fc33min
└─3519 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/f_buster
Dec 04 13:29:49 xen2004 root[3457]: /etc/xen/scripts/block: Writing backend/vbd/5/51728/physical-device-path /dev/dm-19 to xenstore.
Dec 04 13:29:49 xen2004 root[3459]: /etc/xen/scripts/block: Writing backend/vbd/5/51728/hotplug-status connected to xenstore.
Dec 04 13:29:49 xen2004 root[3477]: /etc/xen/scripts/vif-bridge: online type_if=vif XENBUS_PATH=backend/vif/5/0
Dec 04 13:29:49 xen2004 root[3497]: /etc/xen/scripts/vif-bridge: br0 MTU is 1500
Dec 04 13:29:49 xen2004 root[3500]: /etc/xen/scripts/vif-bridge: Writing /local/domain/5/device/vif/0/mtu 1500 to xenstore.
Dec 04 13:29:49 xen2004 root[3502]: /etc/xen/scripts/vif-bridge: adding vif5.0 to bridge br0
Dec 04 13:29:49 xen2004 root[3515]: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif5.0, bridge br0.
Dec 04 13:29:49 xen2004 root[3516]: /etc/xen/scripts/vif-bridge: Writing backend/vif/5/0/hotplug-status connected to xenstore.
Dec 04 13:29:50 xen2004 xendomains[1101]: Starting auto Xen domains: a_ub2004 b_a8respin c_mga8 e_fc33min f_buster * [done]
Dec 04 13:29:50 xen2004 systemd[1]: Finished Xendomains - start and stop guests on boot and shutdown.
>xl info
host : xen2004
release : 5.3.0-18-generic
version : #19-Ubuntu SMP Tue Oct 8 20:14:06 UTC 2019
machine : x86_64
nr_cpus : 2
max_cpu_id : 3
nr_nodes : 1
cores_per_socket : 2
threads_per_core : 1
cpu_mhz : 3062.670
hw_caps : bfebfbff:0008e3bd:20100800:00000001:00000000:00000000:00000000:00000000
virt_caps : pv hvm shadow
total_memory : 4094
free_memory : 22
sharing_freed_memory : 0
sharing_used_memory : 0
outstanding_claims : 0
free_cpus : 0
xen_major : 4
xen_minor : 15
xen_extra : .1
xen_version : 4.15.1
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p 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 : 544e547a63175ac6e-x86/P2M: deal with partial success of p2m_set
xen_commandline : dom0_mem=700M,max:748M guest_loglvl=all loglvl=all sched=credit2 xsave=0 cpufreq=xen:performance console=vga vga=gfx-1280x1024x16 conring_size=48k xpti=false
cc_compiler : gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
cc_compile_by : pbuser
cc_compile_domain : hldns.com
cc_compile_date : Fri Dec 3 20:04:48 PST 2021
build_id : de24939e7a61b6439bc5dbe875d28c8c9a71ba3f
xend_config_format : 4
>xl list
Name ID Mem VCPUs State Time(s)
Domain-0 0 700 2 r----- 36.4
ub2004 1 404 2 -b---- 9.4
a8respin 2 304 2 -b---- 10.5
mga8 3 1224 2 -b---- 11.7
fc33min 4 704 2 -b---- 12.4
buster 5 684 2 -b---- 8.8
>iptables -S -t nat
-P PREROUTING ACCEPT
-P INPUT ACCEPT
-P OUTPUT ACCEPT
-P POSTROUTING ACCEPT
>systemctl list-unit-files | grep "enabled enabled" | sort
autovt@.service enabled enabled
blk-availability.service enabled enabled
console-setup.service enabled enabled
cron.service enabled enabled
dbus-org.freedesktop.resolve1.service enabled enabled
dbus-org.freedesktop.timesync1.service enabled enabled
dmesg.service enabled enabled
dm-event.socket enabled enabled
fstrim.timer enabled enabled
getty@.service enabled enabled
haveged.service enabled enabled
irqbalance.service enabled enabled
logrotate.timer enabled enabled
lvm2-lvmpolld.socket enabled enabled
lvm2-monitor.service enabled enabled
networking.service enabled enabled
ondemand.service enabled enabled
remote-fs.target enabled enabled
rsync.service enabled enabled
rsyslog.service enabled enabled
setvtrgb.service enabled enabled
sshd.service enabled enabled
ssh.service enabled enabled
syslog.service enabled enabled
systemd-pstore.service enabled enabled
systemd-resolved.service enabled enabled
systemd-timesyncd.service enabled enabled
uuidd.socket enabled enabled
xenconsoled.service enabled enabled
xendomains.service enabled enabled
xen-init-dom0.service enabled enabled
xen-qemu-dom0-disk-backend.service enabled enabled
xenstored.service enabled enabled
xen-watchdog.service enabled enabled
>ps aux | grep xen
root 25 0.1 0.0 0 0 ? S 13:29 0:00 [xenbus]
root 26 0.1 0.0 0 0 ? S 13:29 0:00 [xenwatch]
root 761 1.2 0.5 5992 3132 ? S 13:29 0:03 /usr/sbin/xenstored --pid-file /var/run/xen/xenstored.pid
root 776 0.0 0.4 68796 2600 ? Ssl 13:29 0:00 /usr/sbin/xenconsoled -i --log=none --log-dir=/var/log/xen/console
root 845 0.0 2.3 242292 14244 ? Sl 13:29 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 /run/xen/qemu-dom0.pid
root 1388 0.0 4.0 410516 24440 ? Ssl 13:29 0:00 /usr/bin/qemu-system-i386 -xen-domid 1 -no-shutdown -chardev socket,id=libxl-cmd,path=/run/xen/qmp-libxl-1,server=on,wait=off -mon chardev=libxl-cmd,mode=control -chardev socket,id=libxenstat-cmd,path=/run/xen/qmp-libxenstat-1,server=on,wait=off -mon chardev=libxenstat-cmd,mode=control -nodefaults -no-user-config -xen-attach -name ub2004 -vnc 127.0.0.1:0,to=99 -display none -k en-us -machine xenpv -m 404
root 1456 0.0 0.4 72144 2596 ? Ssl 13:29 0:00 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/a_ub2004
root 1723 0.0 0.4 72144 2808 ? Ssl 13:29 0:00 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/b_a8respin
root 2294 0.0 0.4 72144 2620 ? Ssl 13:29 0:00 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/c_mga8
root 2819 0.0 0.4 72144 2596 ? Ssl 13:29 0:00 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/e_fc33min
root 3519 0.0 0.4 72144 2592 ? Ssl 13:29 0:00 /usr/lib/xen-4.15/bin/xl create --quiet --defconfig /etc/xen/auto/f_buster
root 3536 0.0 0.0 2992 168 ? Ss 13:29 0:00 /usr/sbin/xenwatchdogd 30 15
root 3662 0.0 0.7 12168 4604 pts/5 S+ 13:33 0:00 sudo ./dump_xen_trace.multi tlviewer
root 3663 0.0 0.2 2608 1648 pts/5 S+ 13:33 0:00 sh ./dump_xen_trace.multi tlviewer
root 3729 0.0 0.1 9340 724 pts/5 S+ 13:33 0:00 grep xen
>cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
#source-directory /etc/network/interfaces.d
# The loopback network interface
auto lo
iface lo inet loopback
iface eth0 inet manual
auto br0
iface br0 inet static
address 192.168.1.9
netmask 255.255.255.0
network 192.168.1.0
gateway 192.168.1.1
accept_ra 0
preferred-lifetime 200000
bridge_ports eth0
bridge_fd 0
bridge_maxwait 1
dns-nameservers 1.1.1.1 4.2.2.2 8.8.4.4
dns-search 192.168.1.1
source-directory interfaces.d
>cat /etc/network/interfaces.d/virbr0
>systemd-analyze time
Startup finished in 8.142s (kernel) + 35.385s (userspace) = 43.528s
multi-user.target reached after 35.289s in userspace
>systemd-analyze blame
15.846s ifupdown-pre.service
15.175s xendomains.service
11.875s lvm2-pvscan@8:21.service
10.193s lvm2-pvscan@8:39.service
3.581s dev-sdb12.device
2.605s data2.mount
2.571s data3.mount
1.368s data4.mount
1.266s systemd-resolved.service
1.073s xenstored.service
989ms systemd-logind.service
791ms kexec.service
727ms rsyslog.service
679ms user@1000.service
625ms networking.service
610ms xen-init-dom0.service
576ms ssh.service
466ms dev-mqueue.mount
457ms proc-xen.mount
448ms sys-kernel-debug.mount
443ms dev-sda3.swap
438ms sys-kernel-tracing.mount
409ms blk-availability.service
407ms kmod-static-nodes.service
404ms lvm2-monitor.service
393ms modprobe@drm.service
371ms systemd-journald.service
354ms systemd-modules-load.service
336ms systemd-random-seed.service
298ms systemd-sysusers.service
259ms systemd-timesyncd.service
248ms systemd-sysctl.service
246ms systemd-udev-trigger.service
213ms systemd-udevd.service
189ms xen-watchdog.service
160ms systemd-tmpfiles-setup.service
156ms var-lib-xenstored.mount
148ms systemd-remount-fs.service
147ms systemd-tmpfiles-setup-dev.service
140ms rc-local.service
75ms systemd-update-utmp-runlevel.service
72ms console-setup.service
67ms plymouth.service
66ms systemd-journal-flush.service
65ms setvtrgb.service
46ms systemd-update-utmp.service
33ms xenconsoled.service
31ms systemd-user-sessions.service
30ms sys-fs-fuse-connections.mount
28ms sys-kernel-config.mount
27ms kexec-load.service
26ms user-runtime-dir@1000.service
24ms xen-qemu-dom0-disk-backend.service
>grep XEN_ /boot/config-5.3.0* | sort
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_XEN_512GB=y
CONFIG_XEN_ACPI_PROCESSOR=y
CONFIG_XEN_ACPI=y
CONFIG_XEN_AUTO_XLATE=y
CONFIG_XEN_BACKEND=y
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG_LIMIT=512
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
CONFIG_XEN_BALLOON=y
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_XEN_COMPAT_XENFS=y
# CONFIG_XEN_DEBUG_FS is not set
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_DMABUF=y
CONFIG_XEN_GNTDEV=m
CONFIG_XEN_GRANT_DEV_ALLOC=m
CONFIG_XEN_GRANT_DMA_ALLOC=y
CONFIG_XEN_HAVE_PVMMU=y
CONFIG_XEN_HAVE_VPMU=y
CONFIG_XEN_MCE_LOG=y
CONFIG_XEN_NETDEV_BACKEND=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_PCIDEV_BACKEND=m
CONFIG_XEN_PCIDEV_FRONTEND=m
CONFIG_XEN_PRIVCMD=m
# CONFIG_XEN_PVCALLS_BACKEND is not set
CONFIG_XEN_PVCALLS_FRONTEND=m
CONFIG_XEN_PVHVM_SMP=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_PVH=y
CONFIG_XEN_PV_SMP=y
CONFIG_XEN_PV=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_WDT=m
CONFIG_XEN_XENBUS_FRONTEND=y
>tree /boot
/boot
├── config-5.3.0-18-generic
├── efi
│ └── EFI
│ └── ubuntu
│ ├── xen-4.15-amd64.efi
│ └── xen-4.15-amd64-xsm.efi
├── flask
│ └── xenpolicy-4.15
├── grub
│ └── menu.lst
├── initrd.img -> initrd.img-5.3.0-18-generic
├── initrd.img-5.3.0-18-generic
├── initrd.img.old -> initrd.img-5.3.0-18-generic
├── kcfg
│ ├── xen-4.15.config
│ └── xen-4.15-xsm.config
├── System.map-5.3.0-18-generic
├── vmlinuz -> vmlinuz-5.3.0-18-generic
├── vmlinuz-5.3.0-18-generic
├── vmlinuz.old -> vmlinuz-5.3.0-18-generic
├── xen-4.15-amd64.gz
├── xen-4.15-amd64-xsm.gz
└── xen.gz -> xen-4.15-amd64.gz
6 directories, 17 files
>netstat -an | grep ^tcp
tcp 0 0 127.0.0.1:5900 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 0 127.0.0.1:6010 0.0.0.0:* LISTEN
tcp 0 0 192.168.1.9:22 192.168.1.107:49404 ESTABLISHED