From owner-svn-src-stable@freebsd.org Mon Aug 15 11:16:45 2016 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 24AEEBBA538; Mon, 15 Aug 2016 11:16:45 +0000 (UTC) (envelope-from ed@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 mx1.freebsd.org (Postfix) with ESMTPS id E90911F4C; Mon, 15 Aug 2016 11:16:44 +0000 (UTC) (envelope-from ed@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u7FBGidO011277; Mon, 15 Aug 2016 11:16:44 GMT (envelope-from ed@FreeBSD.org) Received: (from ed@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u7FBGiqY011276; Mon, 15 Aug 2016 11:16:44 GMT (envelope-from ed@FreeBSD.org) Message-Id: <201608151116.u7FBGiqY011276@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ed set sender to ed@FreeBSD.org using -f From: Ed Schouten Date: Mon, 15 Aug 2016 11:16:44 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r304148 - stable/11/sys/arm64/arm64 X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Aug 2016 11:16:45 -0000 Author: ed Date: Mon Aug 15 11:16:43 2016 New Revision: 304148 URL: https://svnweb.freebsd.org/changeset/base/304148 Log: MFC r303923: Make cpu_set_user_tls() work when called on the running thread. On all the other architectures, this function can also be called on the currently running thread. In this case, we shouldn't fix up the address in the PCB, but also patch up the register itself. Otherwise it will not become active and will simply become overwritten by the next switch. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D7437 Modified: stable/11/sys/arm64/arm64/vm_machdep.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/arm64/arm64/vm_machdep.c ============================================================================== --- stable/11/sys/arm64/arm64/vm_machdep.c Mon Aug 15 10:46:33 2016 (r304147) +++ stable/11/sys/arm64/arm64/vm_machdep.c Mon Aug 15 11:16:43 2016 (r304148) @@ -201,6 +201,8 @@ cpu_set_user_tls(struct thread *td, void pcb = td->td_pcb; pcb->pcb_tpidr_el0 = (register_t)tls_base; + if (td == curthread) + WRITE_SPECIALREG(tpidr_el0, tls_base); return (0); }