Check if secure boot is enabled with development keys

[Shravan Kumar Ramani]

SRU Justification:

[Impact]
Currently, there is no indication from mlx-bootctl when the user reads the lifecycle_state sysfs as to whether secure boot is enabled with development keys or production keys. In order to make this clear to the user, add a check in the driver.

[Fix]
Check the secure boot development mode status bit. If secure boot is enabled with the development key, then print it to the output buffer when lifecycle_state_show() is invoked.

[Test Case]
On a system in secure state, if it has been programmed with development keys, then reading the lifecycle_state sysfs entry in the mlx-bootctl driver should print a message that indicates the same.
Similarly, a secure system which has been programmed with production keys must print the appropriate message when the lifecycle_state sysfs is read.

[Regression Potential]
Can be considered minimum.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-bluefield/5.4.0-1022.25 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-bluefield - 5.4.0-1022.25

---------------
linux-bluefield (5.4.0-1022.25) focal; urgency=medium

  * focal/linux-bluefield: 5.4.0-1022.25 -proposed tracker (LP: #1949817)

  * Add RevID field to VPD info in EEPROM (LP: #1948436)
    - SAUCE: mlx-bootctl: Add RevID field to VPD info

  * Check if secure boot is enabled with development keys (LP: #1948434)
    - SAUCE: mlx-bootctl: Check secure boot development mode status bit

  [ Ubuntu: 5.4.0-91.102 ]

  * focal/linux: 5.4.0-91.102 -proposed tracker (LP: #1949840)
  * Packaging resync (LP: #1786013)
    - [Packaging] update Ubuntu.md
    - debian/dkms-versions -- update from kernel-versions (main/2021.11.08)
  * KVM emulation failure when booting into VM crash kernel with multiple CPUs
    (LP: #1948862)
    - KVM: x86: Properly reset MMU context at vCPU RESET/INIT
  * aufs: kernel bug with apparmor and fuseblk (LP: #1948470)
    - SAUCE: aufs: bugfix, stop omitting path->mnt
  * ebpf: bpf_redirect fails with ip6 gre interfaces (LP: #1947164)
    - net: handle ARPHRD_IP6GRE in dev_is_mac_header_xmit()
  * require CAP_NET_ADMIN to attach N_HCI ldisc (LP: #1949516)
    - Bluetooth: hci_ldisc: require CAP_NET_ADMIN to attach N_HCI ldisc
  * ACL updates on OCFS2 are not revalidated (LP: #1947161)
    - ocfs2: fix remounting needed after setfacl command
  * ppc64 BPF JIT mod by 1 will not return 0 (LP: #1948351)
    - powerpc/bpf: Fix BPF_MOD when imm == 1
  * Drop "UBUNTU: SAUCE: cachefiles: Page leaking in
    cachefiles_read_backing_file while vmscan is active" (LP: #1947709)
    - Revert "UBUNTU: SAUCE: cachefiles: Page leaking in
      cachefiles_read_backing_file while vmscan is active"
  * Reassign I/O Path of ConnectX-5 Port 1 before Port 2 causes NULL dereference
    (LP: #1943464)
    - s390/pci: fix leak of PCI device structure
    - s390/pci: fix use after free of zpci_dev
    - s390/pci: fix zpci_zdev_put() on reserve
  * [SRU][F] USB: serial: pl2303: add support for PL2303HXN (LP: #1948377)
    - USB: serial: pl2303: add support for PL2303HXN
    - USB: serial: pl2303: fix line-speed handling on newer chips
  * Focal update: v5.4.151 upstream stable release (LP: #1947888)
    - tty: Fix out-of-bound vmalloc access in imageblit
    - cpufreq: schedutil: Use kobject release() method to free sugov_tunables
    - cpufreq: schedutil: Destroy mutex before kobject_put() frees the memory
    - usb: cdns3: fix race condition before setting doorbell
    - fs-verity: fix signed integer overflow with i_size near S64_MAX
    - hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary
      structure field
    - hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary
      structure field
    - hwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary
      structure field
    - scsi: ufs: Fix illegal offset in UPIU event trace
    - mac80211: fix use-after-free in CCMP/GCMP RX
    - x86/kvmclock: Move this_cpu_pvti into kvmclock.h
    - drm/amd/display: Pass PCI deviceid into DC
    - ipvs: check that ip_vs_conn_tab_bits is between 8 and 20
    - hwmon: (mlxreg-fan) Return non-zero value when fan current state is enf...