Patch Update: Linux kernel gains support for detecting FreeBSD’s Bhyve hypervisor.

Reason: Needed to enable 15-bit MSI (Message Signaled Interrupts) for handling >255 vCPUs.

Background:

• Previously, Bhyve detection was only cosmetic (boot message).
• Now functional due to FreeBSD 15.0’s new 15-bit MSI enlightenment.

Timeline:

• Patch added to the x86/cpu branch of tip.git.
• Expected inclusion in Linux 6.18 merge window.
• FreeBSD 15.0 and Linux 6.18 stable releases both expected in December.