From patchwork Wed May 13 15:21:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joerg Roedel X-Patchwork-Id: 11546713 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 845D4739 for ; Wed, 13 May 2020 15:21:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3EBC92065D for ; Wed, 13 May 2020 15:21:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3EBC92065D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 27CD080009; Wed, 13 May 2020 11:21:45 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 2065C80005; Wed, 13 May 2020 11:21:45 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 086958000A; Wed, 13 May 2020 11:21:44 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0248.hostedemail.com [216.40.44.248]) by kanga.kvack.org (Postfix) with ESMTP id CCC6180005 for ; Wed, 13 May 2020 11:21:44 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 886DF8248047 for ; Wed, 13 May 2020 15:21:44 +0000 (UTC) X-FDA: 76812060528.24.board79_2c3be87576f2a X-Spam-Summary: 2,0,0,712f3d8c55c6a08d,d41d8cd98f00b204,joro@8bytes.org,,RULES_HIT:41:355:379:541:800:960:988:989:1260:1345:1359:1437:1534:1541:1711:1730:1747:1777:1792:2194:2199:2393:2559:2562:3138:3139:3140:3141:3142:3352:3865:3867:3868:3870:3871:3872:4250:4321:4605:5007:6117:6261:6742:7576:7903:10004:11026:11473:11657:11658:11914:12043:12114:12296:12297:12438:12555:12663:12679:12895:13069:13311:13357:14096:14181:14384:14394:14721:21080:21451:21627:30054,0,RBL:81.169.241.247:@8bytes.org:.lbl8.mailshell.net-62.2.6.100 64.100.201.201,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:31,LUA_SUMMARY:none X-HE-Tag: board79_2c3be87576f2a X-Filterd-Recvd-Size: 2616 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Wed, 13 May 2020 15:21:43 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id 4C0966BB; Wed, 13 May 2020 17:21:41 +0200 (CEST) From: Joerg Roedel To: x86@kernel.org Cc: hpa@zytor.com, Dave Hansen , Andy Lutomirski , Peter Zijlstra , rjw@rjwysocki.net, Arnd Bergmann , Andrew Morton , Steven Rostedt , Vlastimil Babka , Michal Hocko , Matthew Wilcox , Joerg Roedel , joro@8bytes.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v2 4/7] x86/mm/64: Implement arch_sync_kernel_mappings() Date: Wed, 13 May 2020 17:21:34 +0200 Message-Id: <20200513152137.32426-5-joro@8bytes.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200513152137.32426-1-joro@8bytes.org> References: <20200513152137.32426-1-joro@8bytes.org> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Joerg Roedel Implement the function to sync changes in vmalloc and ioremap ranges to all page-tables. Signed-off-by: Joerg Roedel --- arch/x86/include/asm/pgtable_64_types.h | 2 ++ arch/x86/mm/init_64.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h index 52e5f5f2240d..8f63efb2a2cc 100644 --- a/arch/x86/include/asm/pgtable_64_types.h +++ b/arch/x86/include/asm/pgtable_64_types.h @@ -159,4 +159,6 @@ extern unsigned int ptrs_per_p4d; #define PGD_KERNEL_START ((PAGE_SIZE / 2) / sizeof(pgd_t)) +#define ARCH_PAGE_TABLE_SYNC_MASK (pgtable_l5_enabled() ? PGTBL_PGD_MODIFIED : PGTBL_P4D_MODIFIED) + #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 3b289c2f75cd..541af8e5bcd4 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -217,6 +217,11 @@ void sync_global_pgds(unsigned long start, unsigned long end) sync_global_pgds_l4(start, end); } +void arch_sync_kernel_mappings(unsigned long start, unsigned long end) +{ + sync_global_pgds(start, end); +} + /* * NOTE: This function is marked __ref because it calls __init function * (alloc_bootmem_pages). It's safe to do it ONLY when after_bootmem == 0.