OpenBSD/arm64 on Hetzner Cloud

Frederic Cambus September 20, 2023 [OpenBSD]

Hetzner introduced its Ampere Altra powered arm64-based cloud servers earlier this year, making it possible to easily run OpenBSD/arm64 on their platform.

The only caveat for now is that the viogpu(4) driver is required, which was committed by jcs@ in April 2023 and thus only available in snapshots. It will first appear in OpenBSD 7.4.

Here is the relevant excerpt from the manual page:

DESCRIPTION
     The viogpu driver provides support for the virtio(4) GPU interface
     provided by QEMU and other virtual machines to create a wscons(4)
     console.

To install the system, we need to provision a Linux instance to fetch the installation media and write it to the root disk.

wget https://cdn.openbsd.org/pub/OpenBSD/snapshots/arm64/miniroot74.img
dd if=miniroot74.img of=/dev/sda bs=4M

The installer will start after reboot, allowing us to perform an interactive installation using the console.

I'm using the CAX11 instance providing 2 vCPUs and 4 GB of RAM.

Here is the result of a quick md5 -t benchmark:

MD5 time trial.  Processing 10000 10000-byte blocks...
Digest = 52e5f9c9e6f656f3e1800dfa5579d089
Time   = 0.220000 seconds
Speed  = 454545454.545455 bytes/second

Here is the result of the sha1 -t benchmark:

SHA1 time trial.  Processing 10000 10000-byte blocks...
Digest = 74a57b897cc581defa5b3a359fa762a1b83a60e8
Time   = 0.230000 seconds
Speed  = 434782608.695652 bytes/second

For the record, LibreSSL speed benchmark results are available here.

System message buffer (dmesg output):

OpenBSD 7.4-beta (GENERIC.MP) #2251: Tue Sep 19 12:41:16 MDT 2023
    deraadt@arm64.openbsd.org:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem  = 4185800704 (3991MB)
avail mem = 3976454144 (3792MB)
random: good seed from bootblocks
mainbus0 at root: ACPI
psci0 at mainbus0: PSCI 1.0, SMCCC 1.1
efi0 at mainbus0: UEFI 2.7
efi0: EDK II rev 0x10000
smbios0 at efi0: SMBIOS 3.0.0
smbios0: vendor Hetzner version "20171111" date 11/11/2017
smbios0: Hetzner vServer
cpu0 at mainbus0 mpidr 0: ARM Neoverse N1 r3p1
cpu0: 64KB 64b/line 4-way L1 PIPT I-cache, 64KB 64b/line 4-way L1 D-cache
cpu0: 1024KB 64b/line 8-way L2 cache
cpu0: DP,RDM,Atomic,CRC32,SHA2,SHA1,AES+PMULL,LRCPC,DPB,ASID16,PAN+ATS1E1,LO,HPDS,VH,HAFDBS,CSV3,CSV2,SBSS+MSR
cpu1 at mainbus0 mpidr 1: ARM Neoverse N1 r3p1
cpu1: 64KB 64b/line 4-way L1 PIPT I-cache, 64KB 64b/line 4-way L1 D-cache
cpu1: 1024KB 64b/line 8-way L2 cache
cpu1: DP,RDM,Atomic,CRC32,SHA2,SHA1,AES+PMULL,LRCPC,DPB,ASID16,PAN+ATS1E1,LO,HPDS,VH,HAFDBS,CSV3,CSV2,SBSS+MSR
apm0 at mainbus0
agintc0 at mainbus0 shift 4:4 nirq 288 nredist 2 ipi: 0, 1, 2: "interrupt-controller"
agintcmsi0 at agintc0
agtimer0 at mainbus0: 25000 kHz
acpi0 at mainbus0: ACPI 5.1
acpi0: sleep states
acpi0: tables DSDT FACP APIC PPTT GTDT MCFG SPCR DBG2 IORT BGRT
acpi0: wakeup devices
acpimcfg0 at acpi0
acpimcfg0: addr 0x4010000000, bus 0-255
acpiiort0 at acpi0
"ACPI0007" at acpi0 not configured
"ACPI0007" at acpi0 not configured
pluart0 at acpi0 COM0 addr 0x9000000/0x1000 irq 33
pluart0: console
"QEMU0002" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
"LNRO0005" at acpi0 not configured
acpipci0 at acpi0 PCI0
pci0 at acpipci0
0:4:0: io address conflict 0x8200/0x8
"Red Hat Host" rev 0x00 at pci0 dev 0 function 0 not configured
virtio0 at pci0 dev 1 function 0 "Qumranet Virtio 1.x GPU" rev 0x01
viogpu0 at virtio0: 1024x768, 32bpp
wsdisplay0 at viogpu0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
virtio0: msix per-VQ
ppb0 at pci0 dev 2 function 0 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci1 at ppb0 bus 1
1:0:0: rom address conflict 0xfff80000/0x80000
virtio1 at pci1 dev 0 function 0 "Qumranet Virtio 1.x Network" rev 0x01
vio0 at virtio1: address 96:00:02:8c:5b:eb
virtio1: msix per-VQ
ppb1 at pci0 dev 2 function 1 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci2 at ppb1 bus 2
xhci0 at pci2 dev 0 function 0 vendor "Red Hat", unknown product 0x000d rev 0x01: msix, xHCI 0.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Red Hat xHCI root hub" rev 3.00/1.00 addr 1
ppb2 at pci0 dev 2 function 2 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci3 at ppb2 bus 3
virtio2 at pci3 dev 0 function 0 "Qumranet Virtio 1.x Console" rev 0x01
virtio2: no matching child driver; not configured
ppb3 at pci0 dev 2 function 3 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci4 at ppb3 bus 4
virtio3 at pci4 dev 0 function 0 vendor "Qumranet", unknown product 0x1045 rev 0x01
viomb0 at virtio3
virtio3: irq 37
ppb4 at pci0 dev 2 function 4 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci5 at ppb4 bus 5
virtio4 at pci5 dev 0 function 0 "Qumranet Virtio 1.x RNG" rev 0x01
viornd0 at virtio4
virtio4: irq 37
ppb5 at pci0 dev 2 function 5 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci6 at ppb5 bus 6
virtio5 at pci6 dev 0 function 0 "Qumranet Virtio 1.x SCSI" rev 0x01
vioscsi0 at virtio5: qsize 256
scsibus0 at vioscsi0: 255 targets
cd0 at scsibus0 targ 0 lun 0: <QEMU, QEMU CD-ROM, 2.5+> removable
sd0 at scsibus0 targ 0 lun 1: <QEMU, QEMU HARDDISK, 2.5+>
sd0: 39064MB, 512 bytes/sector, 80003072 sectors, thin
virtio5: msix per-VQ
ppb6 at pci0 dev 2 function 6 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci7 at ppb6 bus 7
ppb7 at pci0 dev 2 function 7 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 37
pci8 at ppb7 bus 8
ppb8 at pci0 dev 3 function 0 vendor "Red Hat", unknown product 0x000c rev 0x00: irq 38
pci9 at ppb8 bus 9
"Red Hat Qemu Serial" rev 0x01 at pci0 dev 4 function 0 not configured
acpige0 at acpi0 irq 41
acpibtn0 at acpi0: PWRB
uhidev0 at uhub0 port 5 configuration 1 interface 0 "QEMU QEMU USB Tablet" rev 2.00/0.00 addr 2
uhidev0: iclass 3/0
ums0 at uhidev0: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
uhidev1 at uhub0 port 6 configuration 1 interface 0 "QEMU QEMU USB Keyboard" rev 2.00/0.00 addr 3
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd0 at ukbd0 mux 1
wskbd0: connecting to wsdisplay0
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (8d3ced025e1dcf8f.a) swap on sd0b dump on sd0b

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