From owner-svn-src-all@freebsd.org Sat Nov 16 10:49:18 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 8F6681C1C93; Sat, 16 Nov 2019 10:49:18 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47FX5p3HGwz4BrN; Sat, 16 Nov 2019 10:49:18 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 500F53C2; Sat, 16 Nov 2019 10:49:18 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xAGAnIQo064983; Sat, 16 Nov 2019 10:49:18 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xAGAnI4W064982; Sat, 16 Nov 2019 10:49:18 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201911161049.xAGAnI4W064982@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Sat, 16 Nov 2019 10:49:18 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r354767 - stable/12/sys/amd64/amd64 X-SVN-Group: stable-12 X-SVN-Commit-Author: kib X-SVN-Commit-Paths: stable/12/sys/amd64/amd64 X-SVN-Commit-Revision: 354767 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Sat, 16 Nov 2019 10:49:18 -0000 Author: kib Date: Sat Nov 16 10:49:17 2019 New Revision: 354767 URL: https://svnweb.freebsd.org/changeset/base/354767 Log: MFC r354766: amd64: only set PCB_FULL_IRET pcb flag when #gp or similar exception comes from usermode. Modified: stable/12/sys/amd64/amd64/exception.S Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/amd64/amd64/exception.S ============================================================================== --- stable/12/sys/amd64/amd64/exception.S Sat Nov 16 08:16:50 2019 (r354766) +++ stable/12/sys/amd64/amd64/exception.S Sat Nov 16 10:49:17 2019 (r354767) @@ -497,8 +497,8 @@ prot_addrf: 3: cmpw $KUG32SEL,TF_GS(%rsp) jne 4f movq %rdx,PCB_GSBASE(%rdi) + orl $PCB_FULL_IRET,PCB_FLAGS(%rdi) /* full iret from user #gp */ 4: call handle_ibrs_entry - orl $PCB_FULL_IRET,PCB_FLAGS(%rdi) /* always full iret from GPF */ movw %es,TF_ES(%rsp) movw %ds,TF_DS(%rsp) testl $PSL_I,TF_RFLAGS(%rsp)