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Supported FreeBSD virtual machines on Hyper-V

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Applies to: Windows Server 2022, Azure Stack HCI, version 20H2; Windows Server 2019, Hyper-V Server 2019, Windows Server 2016, Hyper-V Server 2016, Windows Server 2012 R2, Hyper-V Server 2012 R2, Windows 10, Windows 8.1

The following feature distribution map indicates the features in each version. The known issues and workarounds for each distribution are listed after the table.

Table legend

  • Built in - BIS (FreeBSD Integration Service) are included as part of this FreeBSD release.

  • ✔ - Feature available

  • (blank) - Feature not available

Feature Windows Server operating system version 13.0-13.1 12.0-12.3 11.2-11.4 10.4
Availability Built in Built in Built in Built in
Core 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
Windows Server 2016 Accurate Time 2019, 2016 ✔ ✔ ✔
Networking
Jumbo frames 2019, 2016, 2012 R2 ✔ Note 3 ✔ Note 3 ✔ Note 3 ✔ Note 3
VLAN tagging and trunking 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
Live migration 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
Static IP Injection 2019, 2016, 2012 R2 ✔ Note 4 ✔ Note 4 ✔ Note 4 ✔ Note 4
vRSS 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
TCP Segmentation and Checksum Offloads 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
Large Receive Offload (LRO) 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
SR-IOV 2019, 2016 ✔ ✔ ✔ ✔
Storage Note 1 Note1 Note 1 Note 1
VHDX resize 2019, 2016, 2012 R2 ✔ Note 6 ✔ Note 6 ✔ Note 6 ✔ Note 6
Virtual Fibre Channel 2019, 2016, 2012 R2
Live virtual machine backup 2019, 2016, 2012 R2 ✔ ✔ ✔
TRIM support 2019, 2016, 2012 R2 ✔ ✔ ✔
SCSI WWN 2019, 2016, 2012 R2
Memory
PAE Kernel Support 2019, 2016, 2012 R2
Configuration of MMIO gap 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
Dynamic Memory - Hot-Add 2019, 2016, 2012 R2
Dynamic Memory - Ballooning 2019, 2016, 2012 R2
Runtime Memory Resize 2019, 2016
Video
Hyper-V specific video device 2019, 2016, 2012 R2
Miscellaneous
Key/value pair 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
Non-Maskable Interrupt 2019, 2016, 2012 R2 ✔ ✔ ✔ ✔
File copy from host to guest 2019, 2016, 2012 R2
lsvmbus command 2019, 2016, 2012 R2
Hyper-V Sockets 2019, 2016
PCI Passthrough/DDA 2019, 2016 ✔ ✔ ✔
Generation 2 virtual machines
Boot using UEFI 2019, 2016, 2012 R2 ✔ ✔ ✔
Secure boot 2019, 2016

Notes

  1. Suggest to Label Disk Devices to avoid ROOT MOUNT ERROR during startup.

  2. The virtual DVD drive may not be recognized when BIS drivers are loaded on FreeBSD 8.x and 9.x unless you enable the legacy ATA driver through the following command.

    # echo ‘hw.ata.disk_enable=1' >> /boot/loader.conf
# shutdown -r now

  3. 9126 is the maximum supported MTU size.

  4. In a failover scenario, you cannot set a static IPv6 address in the replica server. Use an IPv4 address instead.

  5. KVP is provided by ports on FreeBSD 10.0. See the FreeBSD 10.0 ports on FreeBSD.org for more information.

  6. To make VHDX online resizing work properly in FreeBSD 11.0, a special manual step is required to work around a GEOM bug which is fixed in 11.0+, after the host resizes the VHDX disk - open the disk for write, and run “gpart recover” as the following.

    # dd if=/dev/da1 of=/dev/da1 count=0
# gpart recover da1

Additional Notes: The feature matrix of 10 stable and 11 stable is same with FreeBSD 11.1 release. In addition, FreeBSD 10.2 and previous versions (10.1, 10.0, 9.x, 8.x) are end of life. Please refer here for an up-to-date list of supported releases and the latest security advisories.

See Also