Date: Thu, 05 Jul 2018 11:43:29 +0100 From: Pete French <petefrench@ingresso.co.uk> To: kostikbel@gmail.com, petefrench@ingresso.co.uk Cc: avg@freebsd.org, eric@vangyzen.net, freebsd-stable@freebsd.org, freebsd@hda3.com, truckman@FreeBSD.org Subject: Re: Ryzen issues on FreeBSD ? (with sort of workaround) Message-ID: <E1fb1jV-0000yT-B2@dilbert.ingresso.co.uk> In-Reply-To: <20180705103135.GD5562@kib.kiev.ua>
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> It does not make any sense to even try to access the chicken bits > MSRs when running under virtualization. It is the duty of the > hypervisor to configure hardware. I would tend to agree with you :-) I was kind of surprised to read that they are actually saved and restored as part of a VM context switch in fact. > I updated the patch. Thanks I shall try this now on my workstation and the Epyc virtual machine -pete.
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