Date: Thu, 05 Jul 2018 14:58:29 +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: <E1fb4mD-0006j7-SY@dilbert.ingresso.co.uk> In-Reply-To: <20180705133542.GG5562@kib.kiev.ua>
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> This is true, but absolutely irrelevant. > > Modern CPUs have hundreds, if not thousands, MSR registers. Only some of > them define architectural state, and saved/restored on the context switches. > Chicken bits are global knobs not relevant to the vmm entry. That actually makes far more sense. I was kind of puzzled as to how it would work if they were per VM :-) > Which other files ? sys/x86/include/specialreg.h and sys/x86/x86/cpu_machdep.c Those are in your original patch as well as the change to sys/amd64/amd64/initcpu.c, but your email earlier only patches sys/amd64/amd64/initcpu.c and not the others. So I assumed I would keep the changes to the other two files ? -pete.
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