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test xen-4.17~rc3 in AlmaLinux 9.1, kernel-6.0



Hello Xen-Users,

AL 9.1 released yesterday is a reason to test the latest staging,
xen-4.17~rc3, attached is a trace of the running dom0.

One of the domU is also AlmaLinux 9.1, booted as pv.

The dom0 and all the domU (as lvm) are on a single drive, so this
setup is not ideal. The CPU is Intel Ivy Bridge and there is no GUI.

cheers,
PryMar56
>rpm -qa | grep -P '^xen-|^qemu*'
qemuu-img-7.0.0~rc3-1.el9.x86_64
qemuu-7.0.0~rc3-1.el9.x86_64
xen-licenses-4.17~rc3-1.el9.x86_64
xen-libs-4.17~rc3-1.el9.x86_64
xen-hypervisor-4.17~rc3-1.el9.x86_64
xen-runtime-4.17~rc3-1.el9.x86_64
xen-4.17~rc3-1.el9.x86_64
xen-ocaml-4.17~rc3-1.el9.x86_64
xen-doc-4.17~rc3-1.el9.x86_64

>rpm -qi --changelog xen | head -n45
Name        : xen
Epoch       : 2
Version     : 4.17~rc3
Release     : 1.el9
Architecture: x86_64
Install Date: Thu 03 Nov 2022 12:55:11 PM PDT
Group       : Development/Libraries
Size        : 394308
License     : GPLv2+ and LGPLv2+ and BSD
Signature   : (none)
Source RPM  : xen-4.17~rc3-1.el9.src.rpm
Build Date  : Thu 03 Nov 2022 12:16:26 PM PDT
Build Host  : al8pv
Packager    : Mark Pryor 
URL         : http://xen.org/
Summary     : Xen is a virtual machine monitor
Description :
This package contains the xendomain script and systemd service file, needed to manage
virtual machines running under the Xen hypervisor
* Thu Nov 03 2022 Mark Pryor  - 2:4.17~rc3-1.el9
initial build, rc3

* Wed Nov 02 2022 Mark Pryor  - 2:4.17~rc2-2
- HEAD @ 2dd823ca7237e7f
  tools/xenstore: harden transaction finalization against errors-Tue 1 Nov 2022 06:05
- XSA-412
  0019-x86-vmx-Revert-VMX-use-a-single-global-APIC-access-pa.diff:This is XSA-412 / CVE-2022-42327.
- XSA-414
  0020-tools-xenstore-create_node-Don-t-defer-work-to-undo-a.diff:This is XSA-414 / CVE-2022-42309.
- XSA-415
  0021-tools-xenstore-Fail-a-transaction-if-it-is-not-possib.diff:This is XSA-415 / CVE-2022-42310.
- XSA-326
  0022-tools-xenstore-split-up-send_reply.diff:This is part of XSA-326.
  0023-tools-xenstore-add-helpers-to-free-struct-buffered_da.diff:This is part of XSA-326.
  0024-tools-xenstore-reduce-number-of-watch-events.diff:This is part of XSA-326.
  0025-tools-xenstore-let-unread-watch-events-time-out.diff:This is part of XSA-326 / CVE-2022-42311.
  0026-tools-xenstore-limit-outstanding-requests.diff:This is part of XSA-326 / CVE-2022-42312.
  0027-tools-xenstore-don-t-buffer-multiple-identical-watch-.diff:This is part of XSA-326.
  0028-tools-xenstore-fix-connection-id-usage.diff:This is part of XSA-326.
  0029-tools-xenstore-simplify-and-fix-per-domain-node-accou.diff:This is part of XSA-326 / CVE-2022-42313.
  0030-tools-xenstore-limit-max-number-of-nodes-accessed-in-.diff:This is part of XSA-326 / CVE-2022-42314.
  0031-tools-xenstore-move-the-call-of-setup_structure-to-do.diff:This is part of XSA-326.
  0032-tools-xenstore-add-infrastructure-to-keep-track-of-pe.diff:This is part of XSA-326.
  0033-tools-xenstore-add-memory-accounting-for-responses.diff:This is part of XSA-326 / CVE-2022-42315.
  0034-tools-xenstore-add-memory-accounting-for-watches.diff:This is part of XSA-326 / CVE-2022-42315.
  0035-tools-xenstore-add-memory-accounting-for-nodes.diff:This is part of XSA-326 / CVE-2022-42315.
  0036-tools-xenstore-add-exports-for-quota-variables.diff:This is part of XSA-326.
  0037-tools-xenstore-add-control-command-for-setting-and-sh.diff:This is part of XSA-326.
  0038-tools-ocaml-xenstored-Synchronise-defaults-with-oxens.diff:This is part of XSA-326 / CVE-2022-42316.
  0039-tools-ocaml-xenstored-Check-for-maxrequests-before-pe.diff:This is part of XSA-326 / CVE-2022-42317.
  0040-tools-ocaml-GC-parameter-tuning.diff:This is part of XSA-326.
  0041-tools-ocaml-Change-Xb.input-to-return-Packet.t-option.diff:This is part of XSA-326.
  0042-tools-ocaml-xb-Add-BoundedQueue.diff:This is part of XSA-326.
  0043-tools-ocaml-Limit-maximum-in-flight-requests-outstand.diff:This is part of XSA-326 / CVE-2022-42318.
  0044-SUPPORT.md-clarify-support-of-untrusted-driver-domain.diff:This is part of XSA-326.
- XSA-416
  0045-tools-xenstore-don-t-use-conn-in-as-context-for-tempo.diff:This is XSA-416 / CVE-2022-42319.
- XSA-417
  0046-tools-xenstore-fix-checking-node-permissions.diff:This is XSA-417 / CVE-2022-42320.
- XSA-418
  0047-tools-xenstore-remove-recursion-from-construct_node.diff:This is part of XSA-418 / CVE-2022-42321.
  0048-tools-xenstore-don-t-let-remove_child_entry-call-corr.diff:This is part of XSA-418 / CVE-2022-42321.
  0049-tools-xenstore-add-generic-treewalk-function.diff:This is part of XSA-418 / CVE-2022-42321.
  0050-tools-xenstore-simplify-check_store.diff:This is part of XSA-418 / CVE-2022-42321.
  0051-tools-xenstore-use-treewalk-for-check_store.diff:This is part of XSA-418 / CVE-2022-42321.

>cat /etc/almalinux-release
AlmaLinux release 9.1 (Lime Lynx)

>xl dmesg | head -n85
 __  __            _  _    _ _____ /\/|        _____
 \ \/ /___ _ __   | || |  / |___  |/\/_ __ ___|___ /
  \  // _ \ '_ \  | || |_ | |  / /   | '__/ __| |_ \
  /  \  __/ | | | |__   _|| | / /    | | | (__ ___) |
 /_/\_\___|_| |_|    |_|(_)_|/_/     |_|  \___|____/

(XEN) Xen version 4.17~rc3 (mockbuild@xxxxxxxxxxxx) (gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9)) debug=n Thu Nov  3 12:16:53 PDT 2022
(XEN) Latest ChangeSet: 2dd823ca7237e7f-tools/xenstore: harden transaction finalization against errors-Tue 1 Nov 2022 06:05
(XEN) build-id: c268fb31f43c1e93790b7cea84247738622c7d75
(XEN) Bootloader: GRUB 2.04-20
(XEN) Command line: placeholder dom0_mem=1536M,max:1736M 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 iommu=0
(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) CPU Vendor: Intel, Family 6 (0x6), Model 58 (0x3a), Stepping 9 (raw 000306a9)
(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, 0CCC (r1  INTEL PPM RCM  80000001 INTL 20061109)
(XEN) ACPI: MATS DAFAC200, 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) 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) 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 8 CPUs (4 hotplug CPUs)
(XEN) IRQ limits: 24 GSI, 808 MSI/MSI-X
(XEN) Switched to APIC driver x2apic_phys
(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:
(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 46, CPUID 36, Safe address 1000000000
(XEN)   Support for HVM VMs: RSB EAGER_FPU
(XEN)   Support for PV VMs: EAGER_FPU

>dmesg | tail -n85
[   21.076822] xen-blkback: backend/vbd/3/51728: using 1 queues, protocol 1 (x86_64-abi) 
[   21.082021] xen-blkback: backend/vbd/3/51760: using 1 queues, protocol 1 (x86_64-abi) 
[   21.923159] xen-blkback: backend/vbd/1/51712: prepare for reconnect
[   21.927234] xen-blkback: backend/vbd/1/51728: prepare for reconnect
[   23.625130] br0: port 5(vif4.0) entered blocking state
[   23.626307] br0: port 5(vif4.0) entered disabled state
[   23.626771] device vif4.0 entered promiscuous mode
[   23.655083] xen-blkback: backend/vbd/2/51712: prepare for reconnect
[   23.679332] xen-blkback: backend/vbd/2/51728: prepare for reconnect
[   23.803287] xen-blkback: backend/vbd/1/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   23.891564] xen-blkback: backend/vbd/1/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   23.903882] xen-blkback: backend/vbd/4/51712: using 1 queues, protocol 1 (x86_64-abi) 
[   23.910773] xen-blkback: backend/vbd/4/51728: using 1 queues, protocol 1 (x86_64-abi) 
[   23.916451] xen-blkback: backend/vbd/4/51760: using 1 queues, protocol 1 (x86_64-abi) 
[   23.922123] xen-blkback: backend/vbd/4/51776: using 1 queues, protocol 1 (x86_64-abi) 
[   24.618645] xen-blkback: backend/vbd/2/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   24.626922] xen-blkback: backend/vbd/2/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   25.828167] br0: port 6(vif5.0) entered blocking state
[   25.828535] br0: port 6(vif5.0) entered disabled state
[   25.829063] device vif5.0 entered promiscuous mode
[   26.345718] xen-blkback: backend/vbd/5/51712: using 1 queues, protocol 1 (x86_64-abi) 
[   26.351228] xen-blkback: backend/vbd/5/51728: using 1 queues, protocol 1 (x86_64-abi) 
[   26.356147] xen-blkback: backend/vbd/5/51776: using 1 queues, protocol 1 (x86_64-abi) 
[   28.987164] br0: port 7(vif6.0) entered blocking state
[   28.987558] br0: port 7(vif6.0) entered disabled state
[   28.988257] device vif6.0 entered promiscuous mode
[   29.236682] xen-blkback: backend/vbd/6/51712: using 1 queues, protocol 1 (x86_64-abi) 
[   29.241764] xen-blkback: backend/vbd/6/51728: using 1 queues, protocol 1 (x86_64-abi) 
[   29.245865] xen-blkback: backend/vbd/6/51760: using 1 queues, protocol 1 (x86_64-abi) 
[   29.249915] xen-blkback: backend/vbd/6/51776: using 1 queues, protocol 1 (x86_64-abi) 
[   29.253670] xen-blkback: backend/vbd/6/51792: using 1 queues, protocol 1 (x86_64-abi) 
[   30.291016] vif vif-2-0 vif2.0: Guest Rx ready
[   30.291366] IPv6: ADDRCONF(NETDEV_CHANGE): vif2.0: link becomes ready
[   30.291713] br0: port 3(vif2.0) entered blocking state
[   30.292022] br0: port 3(vif2.0) entered forwarding state
[   38.137482] vif vif-1-0 vif1.0: Guest Rx ready
[   38.137533] IPv6: ADDRCONF(NETDEV_CHANGE): vif1.0: link becomes ready
[   38.137584] br0: port 2(vif1.0) entered blocking state
[   38.137603] br0: port 2(vif1.0) entered forwarding state
[   39.703819] xen-blkback: backend/vbd/3/51712: prepare for reconnect
[   39.712915] xen-blkback: backend/vbd/3/51728: prepare for reconnect
[   39.734209] xen-blkback: backend/vbd/3/51760: prepare for reconnect
[   40.958823] xen-blkback: backend/vbd/5/51712: prepare for reconnect
[   41.009098] xen-blkback: backend/vbd/5/51728: prepare for reconnect
[   41.010165] xen-blkback: backend/vbd/4/51712: prepare for reconnect
[   41.016517] xen-blkback: backend/vbd/5/51776: prepare for reconnect
[   41.017537] xen-blkback: backend/vbd/4/51728: prepare for reconnect
[   41.029176] vif vif-3-0 vif3.0: Guest Rx ready
[   41.029211] IPv6: ADDRCONF(NETDEV_CHANGE): vif3.0: link becomes ready
[   41.029265] br0: port 4(vif3.0) entered blocking state
[   41.029279] br0: port 4(vif3.0) entered forwarding state
[   41.031908] xen-blkback: backend/vbd/4/51760: prepare for reconnect
[   41.034518] xen-blkback: backend/vbd/3/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   41.046336] xen-blkback: backend/vbd/3/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   41.052103] xen-blkback: backend/vbd/3/51760: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   41.063361] xen-blkback: backend/vbd/4/51776: prepare for reconnect
[   41.291563] xen-blkback: backend/vbd/6/51712: prepare for reconnect
[   41.355449] xen-blkback: backend/vbd/6/51728: prepare for reconnect
[   41.407330] xen-blkback: backend/vbd/6/51760: prepare for reconnect
[   41.517872] xen-blkback: backend/vbd/6/51776: prepare for reconnect
[   41.549505] xen-blkback: backend/vbd/6/51792: prepare for reconnect
[   42.402989] xen-blkback: backend/vbd/6/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.436445] xen-blkback: backend/vbd/6/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.458118] xen-blkback: backend/vbd/6/51760: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.467424] xen-blkback: backend/vbd/6/51776: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.480376] xen-blkback: backend/vbd/5/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.504569] xen-blkback: backend/vbd/5/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.539279] xen-blkback: backend/vbd/6/51792: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.574105] xen-blkback: backend/vbd/5/51776: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.587558] vif vif-6-0 vif6.0: Guest Rx ready
[   42.587609] IPv6: ADDRCONF(NETDEV_CHANGE): vif6.0: link becomes ready
[   42.587661] br0: port 7(vif6.0) entered blocking state
[   42.587674] br0: port 7(vif6.0) entered forwarding state
[   42.595454] vif vif-5-0 vif5.0: Guest Rx ready
[   42.595493] IPv6: ADDRCONF(NETDEV_CHANGE): vif5.0: link becomes ready
[   42.595538] br0: port 6(vif5.0) entered blocking state
[   42.595552] br0: port 6(vif5.0) entered forwarding state
[   42.891637] vif vif-4-0 vif4.0: Guest Rx ready
[   42.891691] IPv6: ADDRCONF(NETDEV_CHANGE): vif4.0: link becomes ready
[   42.892023] br0: port 5(vif4.0) entered blocking state
[   42.892318] br0: port 5(vif4.0) entered forwarding state
[   42.895784] xen-blkback: backend/vbd/4/51712: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.926008] xen-blkback: backend/vbd/4/51728: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.956130] xen-blkback: backend/vbd/4/51760: using 4 queues, protocol 1 (x86_64-abi) persistent grants
[   42.968735] xen-blkback: backend/vbd/4/51776: using 4 queues, protocol 1 (x86_64-abi) persistent grants

>systemctl status lvm-activate-z68vm.service
○ lvm-activate-z68vm.service - /usr/sbin/lvm vgchange -aay --autoactivation event z68vm
     Loaded: loaded (/run/systemd/transient/lvm-activate-z68vm.service; transient)
  Transient: yes
     Active: inactive (dead) since Thu 2022-11-17 11:53:04 PST; 2min 37s ago
   Duration: 3.037s
    Process: 517 ExecStart=/usr/sbin/lvm vgchange -aay --autoactivation event z68vm (code=exited, status=0/SUCCESS)
   Main PID: 517 (code=exited, status=0/SUCCESS)
        CPU: 18ms

Nov 17 11:53:01 al9dom0 systemd[1]: Started /usr/sbin/lvm vgchange -aay --autoactivation event z68vm.
Nov 17 11:53:04 al9dom0 lvm[517]:   30 logical volume(s) in volume group "z68vm" now active
Nov 17 11:53:04 al9dom0 systemd[1]: lvm-activate-z68vm.service: Deactivated successfully.

>systemctl status xendomains
● xendomains.service - Xendomains - start and stop guests on boot and shutdown
     Loaded: loaded (/usr/lib/systemd/system/xendomains.service; enabled; vendor preset: disabled)
    Drop-In: /etc/systemd/system/xendomains.service.d
             └─override.conf
     Active: active (exited) since Thu 2022-11-17 11:53:20 PST; 2min 21s ago
    Process: 686 ExecStartPre=/bin/grep -q control_d /proc/xen/capabilities (code=exited, status=0/SUCCESS)
    Process: 687 ExecStart=/usr/lib/xen/bin/xendomains start (code=exited, status=0/SUCCESS)
   Main PID: 687 (code=exited, status=0/SUCCESS)
      Tasks: 12 (limit: 8748)
     Memory: 10.6M
        CPU: 4.262s
     CGroup: /system.slice/xendomains.service
             ├─ 904 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/a_al9pv
             ├─1117 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/b_pvbully
             ├─1439 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/c_al8pv
             ├─1870 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/d_fc35cnv
             ├─2259 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/e_ub2204
             └─2884 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/f_ub2004

Nov 17 11:53:18 al9dom0 root[2863]: /etc/xen/scripts/vif-bridge: setting vif6.0 MTU to 1500
Nov 17 11:53:18 al9dom0 root[2865]: /etc/xen/scripts/vif-bridge: Writing /local/domain/6/device/vif/0/mtu 1500 to xenstore.
Nov 17 11:53:18 al9dom0 root[2867]: /etc/xen/scripts/vif-bridge: adding vif6.0 to bridge br0
Nov 17 11:53:18 al9dom0 root[2880]: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif6.0, bridge br0.
Nov 17 11:53:18 al9dom0 root[2881]: /etc/xen/scripts/vif-bridge: Writing backend/vif/6/0/hotplug-status connected to xenstore.
Nov 17 11:53:18 al9dom0 xendomains[687]:  f_ub2004
Nov 17 11:53:18 al9dom0 xendomains[2886]: warning: usleep is deprecated, and will be removed in near future!
Nov 17 11:53:18 al9dom0 xendomains[2886]: warning: use "sleep 1.35" instead...
Nov 17 11:53:20 al9dom0 xendomains[687]: [  OK  ]
Nov 17 11:53:20 al9dom0 systemd[1]: Finished Xendomains - start and stop guests on boot and shutdown.

>xl info
host                   : al9dom0
release                : 6.0.8-1.el9.elrepo.x86_64
version                : #1 SMP PREEMPT_DYNAMIC Tue Nov 8 17:24:40 EST 2022
machine                : x86_64
nr_cpus                : 4
max_cpu_id             : 7
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 3410.012
hw_caps                : bfebfbff:77bae3ff:28100800:00000001:00000001:00000281:00000000:00000100
virt_caps              : pv hvm hap shadow gnttab-v1 gnttab-v2 assisted_xapic
total_memory           : 32685
free_memory            : 4811
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 17
xen_extra              : ~rc3
xen_version            : 4.17~rc3
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          : 2dd823ca7237e7f-tools/xenstore: harden transaction finalization
xen_commandline        : placeholder dom0_mem=1536M,max:1736M 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 iommu=0
cc_compiler            : gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9)
cc_compile_by          : mockbuild
cc_compile_domain      : prymar56.org
cc_compile_date        : Thu Nov  3 12:16:53 PDT 2022
build_id               : c268fb31f43c1e93790b7cea84247738622c7d75
xend_config_format     : 4

>xl list
Name                                        ID   Mem VCPUs	State	Time(s)
Domain-0                                     0  1536     4     r-----      21.7
al9pv                                        1  2024     4     -b----       8.2
pvbully                                      2  2684     4     -b----       5.9
al8pv                                        3  4096     4     -b----       8.4
fc35cnv                                      4  3072     4     -b----       9.8
ub2204z                                      5 10024     4     -b----       9.3
ub2004z                                      6  4096     4     -b----       6.9

>grep XEN_ /boot/config-6.0.8-1.el9.elrepo.x86_64
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_PROCESSOR=m
CONFIG_XEN_ACPI=y
CONFIG_XEN_AUTO_XLATE=y
CONFIG_XEN_BACKEND=y
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
CONFIG_XEN_BALLOON=y
CONFIG_XEN_BLKDEV_BACKEND=m
CONFIG_XEN_BLKDEV_FRONTEND=m
CONFIG_XEN_COMPAT_XENFS=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_EFI=y
CONFIG_XEN_FBDEV_FRONTEND=y
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_GRANT_DMA_IOMMU=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=m
CONFIG_XEN_PCIDEV_BACKEND=m
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_XEN_PCI_STUB=y
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_PVCALLS_BACKEND=m
CONFIG_XEN_PVCALLS_FRONTEND=m
CONFIG_XEN_PV_DOM0=y
CONFIG_XEN_PVHVM_GUEST=y
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_UNPOPULATED_ALLOC=y
CONFIG_XEN_VIRTIO_FORCE_GRANT=y
CONFIG_XEN_VIRTIO=y
CONFIG_XEN_WDT=m
CONFIG_XEN_XENBUS_FRONTEND=y

>qemu-system-i386 -version
QEMU emulator version 7.0.0
Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers

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

>systemctl list-unit-files | grep enab | sort
auditd.service                         disabled        enabled
crond.service                          enabled         enabled
dbus-broker.service                    enabled         enabled
dbus.socket                            enabled         enabled
dm-event.socket                        enabled         enabled
dnf-makecache.timer                    enabled         enabled
firewalld.service                      disabled        enabled
getty@.service                         enabled         enabled
import-state.service                   enabled         enabled
irqbalance.service                     enabled         enabled
kdump.service                          disabled        enabled
lm_sensors.service                     enabled         enabled
loadmodules.service                    enabled         enabled
logrotate.timer                        enabled         enabled
lvm2-lvmpolld.socket                   enabled         enabled
lvm2-monitor.service                   enabled         enabled
microcode.service                      enabled         enabled
mlocate-updatedb.timer                 enabled         enabled
nis-domainname.service                 disabled        enabled
rc-local.service                       enabled-runtime disabled
reboot.target                          enabled         enabled
remote-cryptsetup.target               disabled        enabled
remote-fs.target                       enabled         enabled
rsyslog.service                        enabled         enabled
selinux-autorelabel-mark.service       disabled        enabled
sshd.service                           enabled         enabled
sssd-kcm.socket                        enabled         enabled
sssd.service                           enabled         enabled
systemd-fsck-root.service              enabled-runtime disabled
systemd-networkd.service               enabled         enabled
systemd-networkd.socket                enabled         disabled
systemd-network-generator.service      enabled         enabled
systemd-pstore.service                 disabled        enabled
systemd-remount-fs.service             enabled-runtime disabled
systemd-resolved.service               enabled         disabled
xenconsoled.service                    enabled         disabled
xendomains.service                     enabled         disabled
xen-init-dom0.service                  enabled         disabled
xen-qemu-dom0-disk-backend.service     enabled         disabled
xenstored.service                      enabled         disabled

>ps aux | grep xen
root          41  0.0  0.0      0     0 ?        S    11:52   0:00 [xenbus]
root          42  0.0  0.0      0     0 ?        S    11:52   0:00 [xenwatch]
root          53  0.0  0.0      0     0 ?        S    11:52   0:00 [xen-balloon]
root         672  0.4  0.5  15264  7212 ?        S    11:53   0:00 /usr/sbin/oxenstored --pid-file /run/xen/xenstored.pid
root         678  0.0  0.1  68756  2048 ?        Ssl  11:53   0:00 /usr/sbin/xenconsoled -i --log=none --log-dir=/var/log/xen/console
root         873  0.0  1.2 259792 18040 ?        Sl   11:53   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         904  0.0  0.1  72408  2488 ?        Ssl  11:53   0:00 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/a_al9pv
root        1117  0.0  0.1  72408  2412 ?        Ssl  11:53   0:00 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/b_pvbully
root        1439  0.0  0.1  72408  2412 ?        Ssl  11:53   0:00 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/c_al8pv
root        1870  0.0  0.1  72408  2396 ?        Ssl  11:53   0:00 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/d_fc35cnv
root        2259  0.0  0.1  72408  2512 ?        Ssl  11:53   0:00 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/e_ub2204
root        2884  0.0  0.1  72408  2480 ?        Ssl  11:53   0:00 /usr/sbin/xl create --quiet --defconfig /etc/xen/auto/f_ub2004
root        3049  0.0  0.6  19332  8676 pts/6    S+   11:55   0:00 sudo ./dump_xen_trace tlviewer
root        3050  0.5  0.2   7252  3688 pts/6    S+   11:55   0:00 /bin/sh ./dump_xen_trace tlviewer
root        3076  0.0  0.1   6408  2176 pts/6    S+   11:55   0:00 grep xen

>systemd-analyze time
Startup finished in 1.044s (kernel) + 5.766s (initrd) + 23.684s (userspace) = 30.494s 
multi-user.target reached after 23.665s in userspace

>systemd-analyze blame
14.633s xendomains.service
 7.054s user@1000.service
 2.297s initrd-switch-root.service
  786ms lvm2-monitor.service
  645ms systemd-resolved.service
  575ms xenstored.service
  554ms systemd-logind.service
  547ms polkit.service
  424ms dbus-broker.service
  367ms systemd-networkd.service
  318ms systemd-udevd.service
  304ms dev-mqueue.mount
  294ms dev-sda2.swap
  292ms proc-xen.mount
  280ms sys-kernel-debug.mount
  272ms lm_sensors.service
  267ms sys-kernel-tracing.mount
  264ms user-runtime-dir@1000.service
  255ms systemd-tmpfiles-setup-dev.service
  246ms rsyslog.service
  237ms sshd.service
  222ms kmod-static-nodes.service
  214ms xen-init-dom0.service
  210ms modprobe@drm.service
  198ms modprobe@fuse.service
  180ms initrd-parse-etc.service
  168ms systemd-udev-trigger.service
  131ms systemd-sysctl.service
  128ms dracut-shutdown.service
  126ms systemd-random-seed.service
  103ms systemd-journald.service
   97ms systemd-modules-load.service
   85ms systemd-network-generator.service
   73ms systemd-remount-fs.service
   71ms rc-local.service
   69ms systemd-fsck-root.service
   67ms systemd-tmpfiles-setup.service
   64ms dracut-cmdline.service
   44ms sys-kernel-config.mount
   38ms systemd-journal-flush.service
   30ms systemd-update-utmp.service
   29ms mnt-zdum.mount
   21ms systemd-vconsole-setup.service
   18ms initrd-cleanup.service
   13ms systemd-user-sessions.service
   13ms systemd-update-utmp-runlevel.service
   10ms initrd-udevadm-cleanup-db.service
    8ms tmp.mount
    6ms xenconsoled.service
    6ms xen-qemu-dom0-disk-backend.service
    5ms sys-fs-fuse-connections.mount
    3ms modprobe@configfs.service
    3ms var-lib-xenstored.mount

>brctl show
bridge name	bridge id		STP enabled	interfaces
br0		8000.c6d3a125251a	no		eth0
							vif1.0
							vif2.0
							vif3.0
							vif4.0
							vif5.0
							vif6.0

>cat /etc/systemd/network/br0.network
[Match]
Name=br0

[Network]
DNS=8.8.4.4
Address=192.168.1.11/24
Gateway=192.168.1.1
#MACAddress=50:e5:49:bd:23:a9

>tree /boot
/boot
├── config-5.19.11-0.rc3.el9.prymar.x86_64
├── config-6.0.8-1.el9.elrepo.x86_64
├── dracut
├── efi
│   └── EFI
│       ├── almalinux
│       │   ├── xen-4.17.efi
│       │   └── xen-4.17-xsm.efi
│       └── centos
├── flask
│   └── xenpolicy-4.17~rc3
├── grub2
│   ├── grub.cfg
│   └── grubenv
├── initramfs-5.19.11-0.rc3.el9.prymar.x86_64.img
├── initramfs-6.0.8-1.el9.elrepo.x86_64.img
├── kcfg
│   ├── xen-4.17.config
│   └── xen-4.17-xsm.config
├── loader
│   └── entries
│       ├── 9a9456777c6a48f598d90ee5b50c41f4-5.19.11-0.rc3.el9.prymar.x86_64.conf
│       └── 9a9456777c6a48f598d90ee5b50c41f4-6.0.8-1.el9.elrepo.x86_64.conf
├── symvers-5.19.11-0.rc3.el9.prymar.x86_64.gz -> /lib/modules/5.19.11-0.rc3.el9.prymar.x86_64/symvers.gz
├── symvers-6.0.8-1.el9.elrepo.x86_64.gz -> /lib/modules/6.0.8-1.el9.elrepo.x86_64/symvers.gz
├── System.map-5.19.11-0.rc3.el9.prymar.x86_64
├── System.map-6.0.8-1.el9.elrepo.x86_64
├── vmlinuz-5.19.11-0.rc3.el9.prymar.x86_64
├── vmlinuz-6.0.8-1.el9.elrepo.x86_64
├── xen-4.17.gz
└── xen-4.17-xsm.gz

10 directories, 21 files

>netstat -an | grep ^tcp
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      0 127.0.0.54:53           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         192.168.1.107:59106     ESTABLISHED
tcp6       0      0 :::22                   :::*                    LISTEN     
tcp6       0      0 :::5355                 :::*                    LISTEN     





 


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