virt: Support detection for ARM64 Hyper-V guests (fixed upstream)

[Gauthier Jolly]

[Impact]

 * The detection of Microsoft Hyper-V VMs is done by cpuid currently,
however there is no cpuid on ARM64. And since ARM64 is now a supported
architecture for Microsoft Hyper-V guests[0], then introduce a more
generic way to detect whether a guest is running as a Hyper-V guest: check
if /sys/class/dmi/id/product_version starts with "Hyper-V".

 * This bug has already been fixed upstream[1][2]

[Test Plan]

 * While changes have been made in the kernel for ARM64 on Hyper-V, there is no way to start an ARM64 VM on Hyper-V at the moment. Thus we just want to make sure no regression is introduced.

 * start an Hyper-V amd64 VM and make sure "systemd-detect-virt" still return MSFT (should still rely on cpuid here)

[Where problems could occur]

 * The main risk is for the system to detect Hyper-V virt erroneously. An issue was reported upstream after the first commit was merged[3]. For this reason, systemd is now looking for "Hyper-V" (in /sys/class/dmi/id/product_version) and not "Microsoft" (in /sys/class/dmi/id/bios_vendor)

 * This change might also break virt detection on hyper-v AMD64. That's why we need testing. However, AMD64 virt detection should still rely on cpuid instead of DMI as cpuid takes priority over DMI.

[0] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7aff79e297ee1aa0126924921fd87a4ae59d2467
[1] https://github.com/systemd/systemd/pull/20998/files
[2] https://github.com/systemd/systemd/pull/21475/files
[3] https://github.com/systemd/systemd/issues/21468

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 249.5-2ubuntu1

---------------
systemd (249.5-2ubuntu1) jammy; urgency=medium

  * Merge to Ubuntu from Debian unstable
    - Dropped changes (applied upstream):
      + UBUNTU-units-disable-journald-watchdog.patch
      + test-Allow-running-only-a-subset-of-integration-tests-by-.patch
      + hwdb-Add-ProBook-to-use-micmute-hotkey.patch
      + d/p/lp1931578/*.patch (ActivationPolicy=)
      + lp1932352-hwdb-Add-mic-mute-key-mapping-for-HP-Elite-Dragonfly.patch
      + d/p/lp1858210/*.patch (tzdata.zi)
      + lp1914740-network-enable-DHCP-broadcast-flag-if-required-by-in.patch
      + lp1934981-correct-suspend-then-sleep-string.patch
      + CVE-2020-13529.patch
      + CVE-2021-33910.patch
      + Merge-pull-request-20199-from-ddstreet-unit_cgroup_catchu.patch
      + udev-fix-slot-based-network-names-on-s390.patch
      + udev-add-missing-initialization-to-fix-freeing-invalid-ad.patch
      + udev-allow-onboard-index-up-to-65535.patch
      + lp1940635.patch (networkd failed to acquire a DHCP6 lease, v249.5)
  * debian/gbp.conf: Update debian-branch to ubuntu-jammy
    File: debian/gbp.conf
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=f35b4d6c0653c3125b2e0e5d962f84543733c3c0
  * Refresh Ubuntu-UseDomains-by-default.patch
    File: debian/patches/debian/Ubuntu-UseDomains-by-default.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=6e3b2ffb1c2c2bf2223f91b350c1fd06b8903346
  * Refresh UBUNTU-test-test-functions-launch-qemu-with-vga-none.patch
    File: debian/patches/debian/UBUNTU-test-test-functions-launch-qemu-with-vga-none.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=7142fb9381ab98d750a7c2473087ea7264be860d
  * Refresh UBUNTU-Revert-cgroup-Continue-unit-reset-if-cgroup-is-busy.patch
    File: debian/patches/debian/UBUNTU-Revert-cgroup-Continue-unit-reset-if-cgroup-is-busy.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=3de0f444bfc0cf3b601c4a1ad8939d2cd69cdad6
  * Refresh UBUNTU-resolved-default-no-negative-caching.patch
    File: debian/patches/debian/UBUNTU-resolved-default-no-negative-caching.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=d7b25651ea7ceae2ebfeafb84d9d65fb8284367a
  * Refresh Revert-network-if-sys-is-rw-then-udev-should-be-around.patch
    File: debian/patches/Revert-network-if-sys-is-rw-then-udev-should-be-around.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=61b004d7710b305d9996b3ad9bb47dc372fcbbac
  * Refresh UBUNTU-src-test-testmount-util.c-Skip-parts-of-test-mount-util-in-LXC.patch
    File: debian/patches/debian/UBUNTU-src-test-testmount-util.c-Skip-parts-of-test-mount-util-in-LXC.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=5fe343a0fc89771820f997c2d6621ac517d9070f
  * Refresh Merge-pull-request-20705-from-yuwata-test-oomd-util.patch
    File: debian/patches/Merge-pull-request-20705-from-yuwata-test-oomd-util.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=e88125...

[Łukasz Zemczak (sil2100)]

Hello Gauthier, or anyone else affected,

Accepted systemd into impish-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/248.3-1ubuntu8.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-impish to verification-done-impish. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-impish. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Łukasz Zemczak (sil2100)]

Hello Gauthier, or anyone else affected,

Accepted systemd into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/245.4-4ubuntu3.14 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Łukasz Zemczak (sil2100)]

Hello Gauthier, or anyone else affected,

Accepted systemd into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.53 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Ubuntu SRU Bot (ubuntu-sru-bot)]

All autopkgtests for the newly accepted systemd (237-3ubuntu10.53) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

openssh/1:7.6p1-4ubuntu0.5 (armhf)
linux-hwe-5.0/5.0.0-65.71 (armhf)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/bionic/update_excuses.html#systemd

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

[Ubuntu SRU Bot (ubuntu-sru-bot)]

All autopkgtests for the newly accepted systemd (248.3-1ubuntu8.1) for impish have finished running.
The following regressions have been reported in tests triggered by the package:

dpdk/20.11.3-0ubuntu1 (armhf)
casper/1.465 (amd64)
diaspora-installer/0.7.15.0+debian1 (s390x, armhf)
libvirt-dbus/1.4.0-2ubuntu1 (amd64)
exim4/4.94.2-7ubuntu2 (armhf)
dovecot/1:2.3.13+dfsg1-1ubuntu3 (armhf)
udisks2/2.9.4-1 (arm64)
systemd/248.3-1ubuntu8.1 (amd64)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/impish/update_excuses.html#systemd

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

[Gauthier Jolly (gjolly)]

Hi there,

I used this[0] script to test the different series. The most relevant parts of it are those parameters for qemu:

-smbios type=0,vendor='Hyper-V test',version=1.2.3 \
-smbios type=1,manufacturer=t1manufacturer,product=t1product,version=t1version,serial=t1serial,uuid=11111111-1111-1111-1111-111111111111,sku=t1sku,family=t1family \

You can read more about them here[1]. In short, it configures the DMI table as follows:

ubuntu@impish:~$ cat /sys/class/dmi/id/product_name
t1product
ubuntu@impish:~$ cat /sys/class/dmi/id/sys_vendor
t1manufacturer
ubuntu@impish:~$ cat /sys/class/dmi/id/bios_vendor
Hyper-V test
ubuntu@impish:~$ cat /sys/class/dmi/id/product_version
t1version

Thus, the old systemd should not detect any virt ("none") and the new one should detect "microsoft"[2].

Test results:

Bionic
======

ubuntu@bionic:~$ dpkg -l systemd ; systemd-detect-virt
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-======================================================-================================-================================-=================================================================================================================
ii systemd 237-3ubuntu10.52 arm64 system and service manager
none
ubuntu@bionic:~$ sudo apt-get install -y systemd
...
ubuntu@bionic:~$ dpkg -l systemd ; systemd-detect-virt
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-======================================================-================================-================================-=================================================================================================================
ii systemd 237-3ubuntu10.53 arm64 system and service manager
microsoft

Focal
=====

ubuntu@focal:~$ dpkg -l systemd ; systemd-detect-virt
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-=================-============-=================================
ii systemd 245.4-4ubuntu3.13 arm64 system and service manager
none
ubuntu@focal:~$ sudo apt-get install -y systemd
...
ubuntu@focal:~$ dpkg -l systemd ; systemd-detect-virt
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name ...

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 248.3-1ubuntu8.1

---------------
systemd (248.3-1ubuntu8.1) impish; urgency=medium

  [ Lukas Märdian ]
  * Cherry-pick upstream 5ed0ea: hwdb: 60-keyboard:: Update Dell Privacy Local Mic Mute Hotkey (LP: #1926547)
    File: debian/patches/hwdb-60-keyboard-Update-Dell-Privacy-Local-Mic-Mute-Hotke.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=041be812ac5c204ad09830dc796ebdb0d6d0894a
  * Support detection for ARM64 Hyper-V guests (LP: #1952599)
    Files:
    - debian/patches/lp1952599/0001-virt-Support-detection-for-ARM64-Hyper-V-guests.patch
    - debian/patches/lp1952599/0002-virt-Fix-the-detection-for-Hyper-V-VMs.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=5060ac86698b206459cef42daa84499781147378

  [ Andy Chi ]
  * Add privacy micmute hotkey for Dell machine. (LP: #1952733)
    File: debian/patches/lp1952733-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-Map.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=f74b782d3ceb01d76c7bffdce7502763dd540150
  * Add microphone mute key for Dell machine. (LP: #1952735)
    File: debian/patches/lp1952735-keymap-Add-microphone-mute-keymap-for-Dell-Machine.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=03c117092c1a32b5db025613d328add54bef3718

  [ Yao Wei ]
  * Add ACCEL_LOCATION=base property for Dell clamshell models (LP: #1943561)
    Files:
    - debian/patches/lp1943561/Add-additional-Dell-models-that-require-ACCEL_LOCATION-ba.patch
    - debian/patches/lp1943561/Use-SKU-to-identify-Dell-clamshell-models-for-acceleromet.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=b6b30ad3d9ef862d30f397ba481fe4f647751c99

 -- Lukas Märdian <email address hidden> Fri, 10 Dec 2021 09:56:36 +0100

[Brian Murray (brian-murray)]

The verification of the Stable Release Update for systemd has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 245.4-4ubuntu3.14

---------------
systemd (245.4-4ubuntu3.14) focal; urgency=medium

  [ Lukas Märdian ]
  * Allow target units to fail (LP: #1948476)
    File: d/p/lp1948476-pid1-target-units-can-fail-through-dependencies.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=fe0cb0bd66baea89d8bbe47cb47d88540f46d470
  * Fix whitespace in lp1926547-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-.patch to match upstream
    File: debian/patches/lp1926547-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=80fef80a1b018556939011707c4ce00cebc58806
  * Support detection for ARM64 Hyper-V guests (LP: #1952599)
    Files:
    - debian/patches/lp1952599/0001-virt-Support-detection-for-ARM64-Hyper-V-guests.patch
    - debian/patches/lp1952599/0002-virt-Fix-the-detection-for-Hyper-V-VMs.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=caf3aff933cc7bf21565faba05f78ce78b3196cd

  [ Andy Chi ]
  * Add privacy micmute hotkey for Dell machine. (LP: #1952733)
    File: debian/patches/lp1952733-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-Map.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=ff8dc41f55baa418076e42509ddbf3212a8c1353
  * Add microphone mute key for Dell machine. (LP: #1952735)
    File: debian/patches/lp1952735-keymap-Add-microphone-mute-keymap-for-Dell-Machine.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=175fb4e209fba889b4bcd81cb2ed262923943a3f

  [ Yao Wei ]
  * Add ACCEL_LOCATION=base property for 6 Dell clamshell models (LP: #1943561)
    File: debian/patches/lp1943561-dell-clamshell-accel-location-base-with-sku.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=246195d68b2bb0473f4a3f1c2ebe54dfd37f068b

  [ Dan Streetman ]
  * d/p/lp1944711-login-filenames-in-run-systemd-users-are-uids.patch:
    Fix systemd-logind restart loading of existing sessions
    (LP: #1944711)

  [ Ratchanan Srirattanamet ]
  * d/p/debian/timedatectl-lp1650688.patch,
    d/p/debian/UBUNTU-Fix-timezone-setting-on-read-only-etc.patch:
    Fix timedated unable to retrieve & properly set timezone on
    read-only /etc (e.g. Ubuntu Core and system-image-based systems)
    (LP: #1650688)

 -- Lukas Märdian <email address hidden> Fri, 10 Dec 2021 10:04:02 +0100

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 237-3ubuntu10.53

---------------
systemd (237-3ubuntu10.53) bionic; urgency=medium

  [ Ratchanan Srirattanamet ]
  * d/p/debian/timedatectl-lp1650688.patch,
    d/p/debian/UBUNTU-Fix-timezone-setting-on-read-only-etc.patch:
    Fix timedated unable to retrieve & properly set timezone on
    read-only /etc (e.g. Ubuntu Core and system-image-based systems)
    (LP: #1650688)

  [ Lukas Märdian ]
  * Support detection for ARM64 Hyper-V guests (LP: #1952599)

 -- Lukas Märdian <email address hidden> Fri, 10 Dec 2021 10:15:49 +0100

[Lukas Märdian (slyon)]

We cannot prepare & verify an SRU for Hirsute within the two weeks left before EOL, so I'm marking this task wontfix.