On 31 January 2018 at 09:56, Bjoern A. Zeeb <bzeeb-li...@lists.zabbadoz.net> wrote: > On 31 Jan 2018, at 14:36, Konstantin Belousov wrote: > >> Author: kib >> Date: Wed Jan 31 14:36:27 2018 >> New Revision: 328625 >> URL: https://svnweb.freebsd.org/changeset/base/328625 >> >> Log: >> IBRS support, AKA Spectre hardware mitigation. > > >> For existing processors, you need a microcode update which adds IBRS >> CPU features, and to manually enable it by setting the tunable/sysctl >> hw.ibrs_disable to 0. Current status can be checked in sysctl >> hw.ibrs_active. The mitigation might be inactive if the CPU feature > > > Can you change the tunable/sysctl to hw.ibrs_enable[d] (and toggle the > default setting along).
I had a similar thought while the change was in review, but saw that a number of tunables in similar areas also have negative sense. That said perhaps (some minor) consistency is not enough of an argument for the somewhat more confusing sense. _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
