https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277326
Bug ID: 277326
Summary: FreeBSD guest on QEMU with Hyper-V enlightenment on is
no longer able to detect Hyper-V devices
Product: Base System
Version: 15.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
With recent change 6744fd8e7503 (x86/cpu: improve hypervisor detection),
FreeBSD guest on QEMU with Hyper-V enlightenment on detects the hypervisor(KVM)
correctly, but the emulated Hyper-V devices are no longer be detected during
boot.
Highlight the diff:
< Hyper-V Version: 10.0.14393 [SP0]
< Features=0x27e<TMREFCNT,SYNIC,SYNTM,APIC,HYPERCALL,VPINDEX,REFTSC>
< PM Features=0x0 [C0]
< Features3=0x8<PCPUDPE>
< Timecounter "Hyper-V" frequency 10000000 Hz quality 2000
< Timecounter "Hyper-V-TSC" frequency 10000000 Hz quality 3000
< vmbus0: <Hyper-V Vmbus> on pcib0
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