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Date:      Tue, 27 Feb 2024 16:52:27 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 277326] FreeBSD guest on QEMU with Hyper-V enlightenment on is no longer able to detect Hyper-V devices
Message-ID:  <bug-277326-27103-zeG6XArK0R@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-277326-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277326

Miroslav Lachman <000.fbsd@quip.cz> changed:

           What    |Removed                     |Added
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                 CC|                            |000.fbsd@quip.cz

--- Comment #6 from Miroslav Lachman <000.fbsd@quip.cz> ---
According to this document
https://www.qemu.org/docs/master/system/i386/hyperv.html
some thing looks like Hyper-V, but for others you can tell it's a KVM
hypervisor.

"When any set of the Hyper-V enlightenments is enabled, QEMU changes hypervisor
identification (CPUID 0x40000000..0x4000000A) to Hyper-V. KVM identification
and features are kept in leaves 0x40000100..0x40000101."

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