From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 4.19 31/97] x86/dump_pagetables: Fix LDT remap address marker Date: Wed, 26 Dec 2018 17:34:51 -0500 Message-ID: <20181226223557.149329-31-sashal@kernel.org> References: <20181226223557.149329-1-sashal@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1gcHnF-00075D-LM for xen-devel@lists.xenproject.org; Wed, 26 Dec 2018 22:36:49 +0000 In-Reply-To: <20181226223557.149329-1-sashal@kernel.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jgross@suse.com, Sasha Levin , bhe@redhat.com, peterz@infradead.org, dave.hansen@linux.intel.com, linux-mm@kvack.org, bp@alien8.de, luto@kernel.org, hpa@zytor.com, xen-devel@lists.xenproject.org, Thomas Gleixner , hans.van.kranenburg@mendix.com, boris.ostrovsky@oracle.com, "Kirill A. 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[198.145.29.99]) by mx.google.com with ESMTPS id t11si32019939plo.293.2018.12.26.14.36.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Dec 2018 14:36:48 -0800 (PST) From: Sasha Levin Subject: [PATCH AUTOSEL 4.19 31/97] x86/dump_pagetables: Fix LDT remap address marker Date: Wed, 26 Dec 2018 17:34:51 -0500 Message-Id: <20181226223557.149329-31-sashal@kernel.org> In-Reply-To: <20181226223557.149329-1-sashal@kernel.org> References: <20181226223557.149329-1-sashal@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: "Kirill A. Shutemov" , Thomas Gleixner , bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, boris.ostrovsky@oracle.com, jgross@suse.com, bhe@redhat.com, hans.van.kranenburg@mendix.com, linux-mm@kvack.org, xen-devel@lists.xenproject.org, Sasha Levin From: "Kirill A. Shutemov" [ Upstream commit 254eb5505ca0ca749d3a491fc6668b6c16647a99 ] The LDT remap placement has been changed. It's now placed before the direct mapping in the kernel virtual address space for both paging modes. Change address markers order accordingly. Fixes: d52888aa2753 ("x86/mm: Move LDT remap out of KASLR region on 5-level paging") Signed-off-by: Kirill A. Shutemov Signed-off-by: Thomas Gleixner Cc: bp@alien8.de Cc: hpa@zytor.com Cc: dave.hansen@linux.intel.com Cc: luto@kernel.org Cc: peterz@infradead.org Cc: boris.ostrovsky@oracle.com Cc: jgross@suse.com Cc: bhe@redhat.com Cc: hans.van.kranenburg@mendix.com Cc: linux-mm@kvack.org Cc: xen-devel@lists.xenproject.org Link: https://lkml.kernel.org/r/20181130202328.65359-3-kirill.shutemov@linux.intel.com Signed-off-by: Sasha Levin --- arch/x86/mm/dump_pagetables.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index 073755c89126..c05a818224bb 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -53,10 +53,10 @@ struct addr_marker { enum address_markers_idx { USER_SPACE_NR = 0, KERNEL_SPACE_NR, - LOW_KERNEL_NR, -#if defined(CONFIG_MODIFY_LDT_SYSCALL) && defined(CONFIG_X86_5LEVEL) +#ifdef CONFIG_MODIFY_LDT_SYSCALL LDT_NR, #endif + LOW_KERNEL_NR, VMALLOC_START_NR, VMEMMAP_START_NR, #ifdef CONFIG_KASAN @@ -64,9 +64,6 @@ enum address_markers_idx { KASAN_SHADOW_END_NR, #endif CPU_ENTRY_AREA_NR, -#if defined(CONFIG_MODIFY_LDT_SYSCALL) && !defined(CONFIG_X86_5LEVEL) - LDT_NR, -#endif #ifdef CONFIG_X86_ESPFIX64 ESPFIX_START_NR, #endif -- 2.19.1