From owner-svn-src-all@freebsd.org Sat May 4 19:40:32 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 F24EA1596F5C; Sat, 4 May 2019 19:40:31 +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 874D96EB3A; Sat, 4 May 2019 19:40:31 +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 75A88CE6A; Sat, 4 May 2019 19:40:31 +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 x44JeV7q099740; Sat, 4 May 2019 19:40:31 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x44JeV8q099723; Sat, 4 May 2019 19:40:31 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201905041940.x44JeV8q099723@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Sat, 4 May 2019 19:40:31 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r347133 - head/sys/arm64/arm64 X-SVN-Group: head X-SVN-Commit-Author: kib X-SVN-Commit-Paths: head/sys/arm64/arm64 X-SVN-Commit-Revision: 347133 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 874D96EB3A X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.97 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.97)[-0.966,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] 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, 04 May 2019 19:40:32 -0000 Author: kib Date: Sat May 4 19:40:30 2019 New Revision: 347133 URL: https://svnweb.freebsd.org/changeset/base/347133 Log: arm64: Properly restore PAN when done with userspace access in casueword. Approved by: andrew Sponsored by: The FreeBSD Foundation MFC after: 1 week Modified: head/sys/arm64/arm64/support.S Modified: head/sys/arm64/arm64/support.S ============================================================================== --- head/sys/arm64/arm64/support.S Sat May 4 19:05:30 2019 (r347132) +++ head/sys/arm64/arm64/support.S Sat May 4 19:40:30 2019 (r347133) @@ -64,8 +64,8 @@ ENTRY(casueword32) b.ne 2f /* Not equal, exit */ stxr w5, w3, [x0] /* Store the new data */ cbnz w5, 1b /* Retry on failure */ - EXIT_USER_ACCESS(w6) -2: SET_FAULT_HANDLER(xzr, x5) /* Reset the fault handler */ +2: EXIT_USER_ACCESS(w6) + SET_FAULT_HANDLER(xzr, x5) /* Reset the fault handler */ str w4, [x2] /* Store the read data */ mov x0, #0 /* Success */ ret /* Return */ @@ -86,8 +86,8 @@ ENTRY(casueword) b.ne 2f /* Not equal, exit */ stxr w5, x3, [x0] /* Store the new data */ cbnz w5, 1b /* Retry on failure */ - EXIT_USER_ACCESS(w6) -2: SET_FAULT_HANDLER(xzr, x5) /* Reset the fault handler */ +2: EXIT_USER_ACCESS(w6) + SET_FAULT_HANDLER(xzr, x5) /* Reset the fault handler */ str x4, [x2] /* Store the read data */ mov x0, #0 /* Success */ ret /* Return */