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Fri, 6 Dec 2019 16:14:26 -0500 (EST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3601.0.10\)) Subject: Re: svn commit: r355436 - in head/sys: amd64/amd64 x86/x86 From: Scott Long In-Reply-To: Date: Fri, 6 Dec 2019 13:14:21 -0800 Cc: Ed Maste , Scott Long , src-committers , svn-src-all , svn-src-head Content-Transfer-Encoding: quoted-printable Message-Id: <14B1D2C7-E7A4-45B5-BC98-DE263304ACD3@samsco.org> References: <201912060243.xB62h5So053092@repo.freebsd.org> To: Eric van Gyzen X-Mailer: Apple Mail (2.3601.0.10) X-Rspamd-Queue-Id: 47V5221gqCz3QGX X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=samsco.org header.s=fm2 header.b=Fjr8jxrj; dkim=pass header.d=messagingengine.com header.s=fm1 header.b=yBxiQU8P; dmarc=none; spf=pass (mx1.freebsd.org: domain of scottl@samsco.org designates 66.111.4.27 as permitted sender) smtp.mailfrom=scottl@samsco.org X-Spamd-Result: default: False [-5.59 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; 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I = encourage you and Ed to own this. Scott > On Dec 6, 2019, at 6:58 AM, Eric van Gyzen wrote: >=20 >=20 >=20 >> On Dec 6, 2019, at 4:36 AM, Ed Maste wrote: >>=20 >> On Thu, 5 Dec 2019 at 21:43, Scott Long wrote: >>>=20 >>> Author: scottl >>> Date: Fri Dec 6 02:43:05 2019 >>> New Revision: 355436 >>> URL: https://svnweb.freebsd.org/changeset/base/355436 >>>=20 >>> Log: >>> Move the mds, irbs, and ssb mitigation knobs into = machdep.mitigations. >>=20 >> If we're moving them and adding backwards-compatibility scaffolding = we >> really should correct the sense of the sysctls at the same time. >=20 > I was just going to suggest that. For some, 0 is secure; for others, = 1 is secure. Since they=E2=80=99re under =E2=80=9Cmitigations,=E2=80=9D = I think 1 should consistently mean =E2=80=9Cmitigated.=E2=80=9D >=20 > Eric