Does microcode updated that way is being erased after each reboot? From: "Theo de Raadt" <dera...@openbsd.org> To: tech@openbsd.org; Date: 1:09 Niedziela 2018-01-14 Subject: amd64 Intel cpu microcode
> Patrick and others commited amd64 Intel cpu microcode update code > over the last few days. The approach isn't perfect, but it is good > enough for a start. I want to explain the situation. > > When you fw_update, you'll get the firmware files. > > Upon a reboot, it will attempt to update the microcode on your cpus. > Maybe there isn't a new microcode. Maybe your BIOS has a copy of > the microcode and installs it before booting OpenBSD. > > This firmware installation is done a little late. Doing it better > will require some work in the bootblocks to find the firmware files, > but time is a bit short to do that right now. > > The branch-target-cache flushing features added in new microcode > are not being used yet. There is more code which has to be written, > but again other work is happening first. > > Also, Intel is saying their new microcodes sucks and people should > wait a little. > > "Hi, my name is Intel and I'm an cheating speculator". > >
