From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f69.google.com (mail-pl0-f69.google.com [209.85.160.69]) by kanga.kvack.org (Postfix) with ESMTP id 421F16B0003 for ; Wed, 14 Feb 2018 08:32:44 -0500 (EST) Received: by mail-pl0-f69.google.com with SMTP id w16so11010949plp.20 for ; Wed, 14 Feb 2018 05:32:44 -0800 (PST) Received: from mga09.intel.com (mga09.intel.com. [134.134.136.24]) by mx.google.com with ESMTPS id f7si1396772pfa.168.2018.02.14.05.32.43 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Feb 2018 05:32:43 -0800 (PST) Date: Wed, 14 Feb 2018 16:32:38 +0300 From: "Kirill A. Shutemov" Subject: Re: [PATCH 5/9] x86/mm: Make LDT_BASE_ADDR dynamic Message-ID: <20180214133238.cliqsqp5rdggjzqy@black.fi.intel.com> References: <20180214111656.88514-1-kirill.shutemov@linux.intel.com> <20180214111656.88514-6-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180214111656.88514-6-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Ingo Molnar , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" , g@black.fi.intel.com Cc: Linus Torvalds , Andy Lutomirski , Borislav Petkov , Andi Kleen , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Wed, Feb 14, 2018 at 11:16:52AM +0000, Kirill A. Shutemov wrote: > LDT_BASE_ADDR has different value in 4- and 5-level paging > configurations. > > We need to make it dynamic in preparation for boot-time switching > between paging modes. > > Signed-off-by: Kirill A. Shutemov I've just realized that the patch that I'm splitting has hunk that belong here. Could you fold it in? Sorry for this. diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index 9efee6f464ab..a32f0621d664 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -579,6 +579,9 @@ static int __init pt_dump_init(void) address_markers[KASAN_SHADOW_START_NR].start_address = KASAN_SHADOW_START; address_markers[KASAN_SHADOW_END_NR].start_address = KASAN_SHADOW_END; #endif +#ifdef CONFIG_MODIFY_LDT_SYSCALL + address_markers[LDT_NR].start_address = LDT_BASE_ADDR; +#endif #endif #ifdef CONFIG_X86_32 address_markers[VMALLOC_START_NR].start_address = VMALLOC_START; -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org