From owner-svn-src-all@freebsd.org Wed May 15 18:01:07 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D3F9D159B057; Wed, 15 May 2019 18:01:06 +0000 (UTC) (envelope-from chagin.dmitry@gmail.com) Received: from mail-io1-f43.google.com (mail-io1-f43.google.com [209.85.166.43]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 72C6097EC5; Wed, 15 May 2019 18:01:06 +0000 (UTC) (envelope-from chagin.dmitry@gmail.com) Received: by mail-io1-f43.google.com with SMTP id x24so316480ion.5; Wed, 15 May 2019 11:01:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KkPUHl67R3KdpWKkt8Zj9VYSDGLyUjWwUVDjttE7R6E=; b=HQRkJD5hqZ+Y/d/MMsA4fTy27mHvV7hGPrmVxt9MWiHf2o1QhfFnh7daP3V/8/6tg0 XW7OrrGTCFqZQ7gLX0W9+4UKVe8jtxuxxvOnFQt0LsZd2F46fy2o33qgU2WiqWs+j3i5 ijw4LOzUFraS5rpW/O/54bbDXwrG2la8mtYx8Emwq9yol+ld4x21bVbGf6gte2X+Z37D 4oRLyaxUJ6NBIH9IYUVtz9uN/xLpP44oWQ9GOTFhBiq3W1w7z3OIf8T8PmYNTgxEtfIE +fs008GyTYT1o15WOuqJZ6IDyz91ieOPws2PnXV/Afig2++EWLjEB4jsxIm5ooChFeJ9 UROg== X-Gm-Message-State: APjAAAXy/HT4yWd0wGo2UsMrgkdqdS4331RB0Ldywynk/a5dO5ue4Xai G3ucUvj/C35vtKIG2cZGSeb6Pr8a8ZMv8MrnfPbtoQQ5VcE= X-Google-Smtp-Source: APXvYqzjwMtTCz7w5BrQ5AJxBQ8FK//Oh8YzxRdA1SO+AaA0RepITyvMIgajbEfAZMJSzEJygC3VadomDDFI+5TNyKI= X-Received: by 2002:a6b:7a49:: with SMTP id k9mr5602071iop.73.1557941494752; Wed, 15 May 2019 10:31:34 -0700 (PDT) MIME-Version: 1.0 References: <201905141702.x4EH2LuD061054@repo.freebsd.org> <20190515081027.GL2748@kib.kiev.ua> In-Reply-To: <20190515081027.GL2748@kib.kiev.ua> From: Dmitry Chagin Date: Wed, 15 May 2019 20:31:23 +0300 Message-ID: Subject: Re: svn commit: r347566 - in head/sys: amd64/amd64 amd64/include dev/cpuctl i386/i386 i386/include x86/include x86/x86 To: Konstantin Belousov Cc: Dmitry Chagin , src-committers , svn-src-all@freebsd.org, svn-src-head@freebsd.org X-Rspamd-Queue-Id: 72C6097EC5 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.90 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.90)[-0.902,0]; REPLY(-4.00)[]; TAGGED_FROM(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 May 2019 18:01:07 -0000 =D1=81=D1=80, 15 =D0=BC=D0=B0=D1=8F 2019 =D0=B3. =D0=B2 11:10, Konstantin B= elousov : > On Wed, May 15, 2019 at 08:54:04AM +0300, Dmitry Chagin wrote: > > =D0=B2=D1=82, 14 =D0=BC=D0=B0=D1=8F 2019 =D0=B3. =D0=B2 20:02, Konstant= in Belousov : > > > > > Author: kib > > > Date: Tue May 14 17:02:20 2019 > > > New Revision: 347566 > > > URL: https://svnweb.freebsd.org/changeset/base/347566 > > > > > > Log: > > > Mitigations for Microarchitectural Data Sampling. > > > > > > Microarchitectural buffers on some Intel processors utilizing > > > speculative execution may allow a local process to obtain a memory > > > disclosure. An attacker may be able to read secret data from the > > > kernel or from a process when executing untrusted code (for example= , > > > in a web browser). > > > > > > Reference: > > > > https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa= -00233.html > > > Security: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, > > > CVE-2019-11091 > > > Security: FreeBSD-SA-19:07.mds > > > Reviewed by: jhb > > > Tested by: emaste, lwhsu > > > Approved by: so (gtetlow) > > > > > > Modified: > > > head/sys/amd64/amd64/exception.S > > > head/sys/amd64/amd64/genassym.c > > > head/sys/amd64/amd64/initcpu.c > > > head/sys/amd64/amd64/machdep.c > > > head/sys/amd64/amd64/support.S > > > > > > > > > > > Hi, Kostik! > > > > cc -target x86_64-unknown-freebsd13.0 > > --sysroot=3D/home/dchagin/obj/home/dchagin/head/amd64.amd64/tmp > > -B/home/dchagin/obj/home/dchagin/head/amd64.amd64/tmp/usr/bin -c -x > > assembler-with-cpp -DLOCORE -O2 -pipe -fno-strict-aliasing -g -nostdin= c > > -I. -I/home/dchagin/head/sys -I/home/dchagin/head/sys/contrib/ck/includ= e > > -I/home/dchagin/head/sys/contrib/libfdt -D_KERNEL > > -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h > > -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -MD > > -MF.depend.support.o -MTsupport.o > > -fdebug-prefix-map=3D./machine=3D/home/dchagin/head/sys/amd64/include > > -fdebug-prefix-map=3D./x86=3D/home/dchagin/head/sys/x86/include > -mcmodel=3Dkernel > > -mno-red-zone -mno-mmx -mno-sse -msoft-float > > -fno-asynchronous-unwind-tables -ffreestanding -fwrapv -fstack-protecto= r > > -gdwarf-2 -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes > > -Wmissing-prototypes -Wpointer-arith -Wcast-qual -Wundef > -Wno-pointer-sign > > -D__printf__=3D__freebsd_kprintf__ -Wmissing-include-dirs > > -fdiagnostics-show-option -Wno-unknown-pragmas > > -Wno-error-tautological-compare -Wno-error-empty-body > > -Wno-error-parentheses-equality -Wno-error-unused-function > > -Wno-error-pointer-sign -Wno-error-shift-negative-value > > -Wno-address-of-packed-member -mno-aes -mno-avx -std=3Diso9899:1999 > > -Werror /home/dchagin/head/sys/amd64/amd64/support.S > > /home/dchagin/head/sys/amd64/amd64/support.S:1809:2: error: instruction > > requires: AVX-512 ISA > > vmovdqa64 %zmm0, %gs:0x340 > > ^ > > /home/dchagin/head/sys/amd64/amd64/support.S:1810:2: error: instruction > > requires: AVX-512 ISA > > vpxor %zmm0, %zmm0, %zmm0 > > ^ > > /home/dchagin/head/sys/amd64/amd64/support.S:1813:2: error: instruction > > requires: AVX-512 DQ ISA > > vorpd (%rdx), %zmm0, %zmm0 > > ^ > > /home/dchagin/head/sys/amd64/amd64/support.S:1814:2: error: instruction > > requires: AVX-512 DQ ISA > > vorpd (%rdx), %zmm0, %zmm0 > > ^ > > /home/dchagin/head/sys/amd64/amd64/support.S:1826:2: error: instruction > > requires: AVX-512 ISA > > vmovdqa64 %gs:0x340, %zmm0 > > ^ > > *** Error code 1 > > > > > > I/m missied something? > Yes, you are using older compiler than current. Perhaps you are using > clang 6.0 still. Update your world. > > FWIW, this is is reason why the sw sequences use .byte in 11.2/12.0 > patches. I do not want to put such abomination into live code base, > remembering aesni.ko. > yes, you are right. thank you! but in the best tradition of the project, the system does not built, I got ar error when building static llvm library: ar: fatal: Symbol table offset overflow *** Error code 70 Stop. make[6]: stopped in /home/dchagin/head/lib/clang/libllvm *** Error code 1