[Bug 297475] Bhyve does not recognize the proper processor topology for Intel N150 processir

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=297475

Jochen Neumeister <joneum@FreeBSD.org> changed:

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--- Comment #1 from Jochen Neumeister <joneum@FreeBSD.org> ---
A FreeBSD guest prefers CPUID leaf 1Fh over 0Bh since 6badb512a94d
whenever the host reports a maximum basic leaf of 1Fh or higher, which
the N150 does.  bhyve does not emulate leaf 1Fh, so the host values are
passed through and the guest ends up enumerating the host topology.
With an SMT shift of 1 that results in exactly the 2 cores x 2 threads
you are seeing.

Proposed fix: https://reviews.freebsd.org/D58885

I have no affected hardware available, so a test on your N150 would be
very welcome.

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