From owner-svn-src-all@freebsd.org Wed Jan 9 17:41:50 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 5DFB614881DE; Wed, 9 Jan 2019 17:41:50 +0000 (UTC) (envelope-from markj@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 017666BD35; Wed, 9 Jan 2019 17:41:50 +0000 (UTC) (envelope-from markj@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 CC5921F5A0; Wed, 9 Jan 2019 17:41:49 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x09HfnJe074987; Wed, 9 Jan 2019 17:41:49 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x09Hfnqp074985; Wed, 9 Jan 2019 17:41:49 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201901091741.x09Hfnqp074985@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Wed, 9 Jan 2019 17:41:49 +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: r342892 - in stable/11/sys: amd64/amd64 i386/i386 X-SVN-Group: stable-11 X-SVN-Commit-Author: markj X-SVN-Commit-Paths: in stable/11/sys: amd64/amd64 i386/i386 X-SVN-Commit-Revision: 342892 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 017666BD35 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.95)[-0.954,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-0.998,0] 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, 09 Jan 2019 17:41:50 -0000 Author: markj Date: Wed Jan 9 17:41:49 2019 New Revision: 342892 URL: https://svnweb.freebsd.org/changeset/base/342892 Log: MFC r342686: Avoid setting PG_U unconditionally in pmap_enter_quick_locked(). Modified: stable/11/sys/amd64/amd64/pmap.c stable/11/sys/i386/i386/pmap.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/amd64/amd64/pmap.c ============================================================================== --- stable/11/sys/amd64/amd64/pmap.c Wed Jan 9 17:39:15 2019 (r342891) +++ stable/11/sys/amd64/amd64/pmap.c Wed Jan 9 17:41:49 2019 (r342892) @@ -5167,8 +5167,7 @@ pmap_enter_quick_locked(pmap_t pmap, vm_offset_t va, v vm_prot_t prot, vm_page_t mpte, struct rwlock **lockp) { struct spglist free; - pt_entry_t *pte, PG_V; - vm_paddr_t pa; + pt_entry_t newpte, *pte, PG_V; KASSERT(va < kmi.clean_sva || va >= kmi.clean_eva || (m->oflags & VPO_UNMANAGED) != 0, @@ -5258,17 +5257,15 @@ pmap_enter_quick_locked(pmap_t pmap, vm_offset_t va, v */ pmap_resident_count_inc(pmap, 1); - pa = VM_PAGE_TO_PHYS(m) | pmap_cache_bits(pmap, m->md.pat_mode, 0); + newpte = VM_PAGE_TO_PHYS(m) | PG_V | + pmap_cache_bits(pmap, m->md.pat_mode, 0); + if ((m->oflags & VPO_UNMANAGED) == 0) + newpte |= PG_MANAGED; if ((prot & VM_PROT_EXECUTE) == 0) - pa |= pg_nx; - - /* - * Now validate mapping with RO protection - */ - if ((m->oflags & VPO_UNMANAGED) != 0) - pte_store(pte, pa | PG_V | PG_U); - else - pte_store(pte, pa | PG_V | PG_U | PG_MANAGED); + newpte |= pg_nx; + if (va < VM_MAXUSER_ADDRESS) + newpte |= PG_U; + pte_store(pte, newpte); return (mpte); } Modified: stable/11/sys/i386/i386/pmap.c ============================================================================== --- stable/11/sys/i386/i386/pmap.c Wed Jan 9 17:39:15 2019 (r342891) +++ stable/11/sys/i386/i386/pmap.c Wed Jan 9 17:41:49 2019 (r342892) @@ -3822,8 +3822,7 @@ static vm_page_t pmap_enter_quick_locked(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot, vm_page_t mpte) { - pt_entry_t *pte; - vm_paddr_t pa; + pt_entry_t newpte, *pte; struct spglist free; KASSERT(va < kmi.clean_sva || va >= kmi.clean_eva || @@ -3909,19 +3908,17 @@ pmap_enter_quick_locked(pmap_t pmap, vm_offset_t va, v */ pmap->pm_stats.resident_count++; - pa = VM_PAGE_TO_PHYS(m) | pmap_cache_bits(m->md.pat_mode, 0); + newpte = VM_PAGE_TO_PHYS(m) | PG_V | + pmap_cache_bits(m->md.pat_mode, 0); + if ((m->oflags & VPO_UNMANAGED) == 0) + newpte |= PG_MANAGED; #if defined(PAE) || defined(PAE_TABLES) if ((prot & VM_PROT_EXECUTE) == 0) - pa |= pg_nx; + newpte |= pg_nx; #endif - - /* - * Now validate mapping with RO protection - */ - if ((m->oflags & VPO_UNMANAGED) != 0) - pte_store(pte, pa | PG_V | PG_U); - else - pte_store(pte, pa | PG_V | PG_U | PG_MANAGED); + if (pmap != kernel_pmap) + newpte |= PG_U; + pte_store(pte, newpte); return (mpte); }