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[100.16.224.136]) by smtp.gmail.com with ESMTPSA id 22-20020ac85916000000b002d6844c51b9sm3490100qty.86.2022.03.04.06.24.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Mar 2022 06:24:48 -0800 (PST) Date: Fri, 4 Mar 2022 09:24:47 -0500 From: Shawn Webb To: Mark Johnston Cc: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: Re: git: 84369dd52369 - main - x86: Probe the TSC frequency earlier Message-ID: <20220304142447.bmo7r6syd6gsunnt@mutt-hbsd> X-Operating-System: FreeBSD mutt-hbsd 14.0-CURRENT-HBSD FreeBSD 14.0-CURRENT-HBSD X-PGP-Key: https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/blob/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc References: <202203011439.221EdtpY038505@gitrepo.freebsd.org> List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="6s7oph7buyslzh5y" Content-Disposition: inline In-Reply-To: <202203011439.221EdtpY038505@gitrepo.freebsd.org> X-Rspamd-Queue-Id: 4K999F365Xz3LRj X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=hardenedbsd.org header.s=google header.b=gvFMn579; dmarc=none; spf=pass (mx1.freebsd.org: domain of shawn.webb@hardenedbsd.org designates 2607:f8b0:4864:20::82c as permitted sender) smtp.mailfrom=shawn.webb@hardenedbsd.org X-Spamd-Result: default: False [-3.20 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[hardenedbsd.org:s=google]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[dev-commits-src-all@freebsd.org]; DMARC_NA(0.00)[hardenedbsd.org]; NEURAL_SPAM_SHORT(0.90)[0.896]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[hardenedbsd.org:+]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::82c:from]; MLMMJ_DEST(0.00)[dev-commits-src-all]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; MID_RHS_NOT_FQDN(0.50)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_TLS_ALL(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[100.16.224.136:received] X-ThisMailContainsUnwantedMimeParts: N --6s7oph7buyslzh5y Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Mar 01, 2022 at 02:39:55PM +0000, Mark Johnston wrote: > The branch main has been updated by markj: >=20 > URL: https://cgit.FreeBSD.org/src/commit/?id=3D84369dd52369cbae28970dca20= a53d3de1719907 >=20 > commit 84369dd52369cbae28970dca20a53d3de1719907 > Author: Mark Johnston > AuthorDate: 2022-03-01 14:39:35 +0000 > Commit: Mark Johnston > CommitDate: 2022-03-01 14:39:35 +0000 >=20 > x86: Probe the TSC frequency earlier > =20 > This lets us use the TSC to implement early DELAY, limiting the use of > the sometimes-unreliable 8254 PIT. > =20 > PR: 262155 > Reviewed by: emaste > Tested by: emaste, mike tancsa , Stefan Hegnaue= r > MFC after: 1 month > Sponsored by: The FreeBSD Foundation > Differential Revision: https://reviews.freebsd.org/D34367 > --- > sys/amd64/amd64/machdep.c | 14 +++++- > sys/i386/i386/machdep.c | 11 ++++- > sys/x86/include/clock.h | 3 +- > sys/x86/isa/clock.c | 4 +- > sys/x86/x86/tsc.c | 123 +++++++++++++++++++++++++---------------= ------ > 5 files changed, 94 insertions(+), 61 deletions(-) Hey Mark, Something about this commit breaks booting in Hyper-V. Reverting this particular commit makes Hyper-V happy again. Thanks, --=20 Shawn Webb Cofounder / Security Engineer HardenedBSD https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A= 4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc --6s7oph7buyslzh5y Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEA6TL67gupaZ9nzhT/y5nonf44foFAmIiIS0ACgkQ/y5nonf4 4fqYGA/+M98XGxG66xTY0jDdBEPZKnnxEBkLA/voPPhhAd3F1TW0BKs8PA+Em50B d53vJfuF9fmCr/o6s8CQxC32ZSCtL7WBwkhagBEJOVYrYRYXznmgYFAKDyllUt+1 Mh8caJrrKV2JCvwRNEZHOCr1B4lEb5UJiopVNXYdwhJbFNE5DReBCxK2pSFRUxWt lgmQC5gBrQ0vkb/I1TLHkSrigwWnxhYZFW0MAdBsNJSouFZ514m0Dfv58wtZVQ2n 1e+CIi358hCP700rcZA4Xj7WJ/FIyAybrbAAr2NCONieDmALK3NjY09MZR/QQeox zJux/bUy8wKBOfRXu19U/FhMDOwFTlfNGXNE46T6RuTg9xM37kCwa9lx5i9ByZ8o qipeD0O9o5mGXGiT4zIrYKnrE+HDGg8Sgj9dQ2fxkDU9n5Q+iyFeNtal9fV/FOHq T2TwernwQ8fbcGtbGbwn4LP34av/r9xjmtxq+NU/EUfRDWdOV5ev8lI9grMSDxZv VreHLI5Yg+zmQHoN6asZgY0/OLVZY2LHQpwhi7N3drHswiEOzIaRNGHUmVEkCrzx UtamOeHb5QQVWyDIITQ3IIBLoH7ZFHD7ADy081avfPpa7MqXjxcwwdePQ0IfO6NU Pqt0xEb3rpdaetBhjDuTb3X+DoUNoR6Uig0gkuznDce0w1Tf1HI= =WTHP -----END PGP SIGNATURE----- --6s7oph7buyslzh5y--