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Subject: [Bug dynamic-link/27201] Consider disabling x86-64-v2 support check
Date: Mon, 18 Jan 2021 20:58:35 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D27201

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Florian Weimer from comment #3)
> (In reply to H.J. Lu from comment #2)
> > model name	: Westmere E56xx/L56xx/X56xx (IBRS update)
>=20
> This is not the qemu64 device model.

I use virt-manager to manage VM. I didn't change the default.  How do I
enable the qemu64 device model?

> To be clear here, everything is consistent on the QEMU side, and CPUID is
> working as expected.
>=20
> But before the level check was added, it was possible to run x86-64-v2
> binaries in a qemu64 guest if the host supported x86-64-v2 because CPUID
> masking does not cause the instructions to trap. With the level check, the
> last part obviously does not change, but we refuse to run anything at all
> nevertheless.

How can I produce it on Fedora 33/Westmere?

--=20
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