Date: Wed, 18 Nov 2015 09:27:32 +0100 From: Andrea Venturoli <ml@netfence.it> To: freebsd-questions@freebsd.org Subject: Re: Is processor microcode advised? Message-ID: <564C3674.8040803@netfence.it> In-Reply-To: <CA%2BtpaK3EMAU5iN4NC6jXQtugJbxyN%2Bm2OtN5-4cyXqnpy4fLcQ@mail.gmail.com> References: <564B3E4D.7070808@gmail.com> <CA%2BtpaK3EMAU5iN4NC6jXQtugJbxyN%2Bm2OtN5-4cyXqnpy4fLcQ@mail.gmail.com>
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On 11/17/15 16:10, Adam Vande More wrote: > On Tue, Nov 17, 2015 at 8:48 AM, Will Senn <will.senn@gmail.com> wrote: > >> Is it important/necessary/advisable to install microcode for Intel CPU's? >> If so, how do you know which CPU's have updates? Also, after doing make >> install in /usr/ports/sysutils/devcpu-data and adding >> microcode_update_enable="YES" to rc.conf, how can you tell if anything was >> applied - what do you look for in dmesg output >> > > man cpuctl > > But normally this is just handled with a bios update. Supposing BIOS has not been updated (due to no availability, lazyness, impossibility over a remote link, fear of bricking the box, etc...), the original question would still stand: is it important/necessary/advisable to use devcpu-data? Also, I see microcode_update has to load the cpuctl module. What are the implications of this WRT security? Would it be advisable to unload it afterwards? bye & Thanks av.
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