From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752077AbdLKXkr (ORCPT ); Mon, 11 Dec 2017 18:40:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:51568 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750836AbdLKXkm (ORCPT ); Mon, 11 Dec 2017 18:40:42 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 500D420693 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=luto@kernel.org From: Andy Lutomirski To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Borislav Petkov , Brian Gerst , David Laight , Kees Cook , Peter Zijlstra , Andy Lutomirski Subject: [PATCH PTI v3 00/10] Clean up pgd handling and fix VSYSCALL and LDT Date: Mon, 11 Dec 2017 15:40:30 -0800 Message-Id: X-Mailer: git-send-email 2.13.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This should fix some existing 5-level bugs and get VSYSCALL and LDT working with PTI. Changes from v1: - vsyscalls actually work. - Added the "Warn and fail" patch to prevent the testing goof I had on v1. - Lots of cleanups Andy Lutomirski (10): x86/espfix/64: Fix espfix double-fault handling on 5-level systems x86/pti: Vastly simplify pgd synchronization x86/pti/64: Fix ESPFIX64 user mapping Revert "x86/mm/pti: Disable native VSYSCALL" x86/vsyscall/64: Explicitly set _PAGE_USER in the pagetable hierarchy x86/vsyscall/64: Warn and fail vsyscall emulation in NATIVE mode x86/pti: Map the vsyscall page if needed x86/mm/64: Improve the memory map documentation x86/mm/64: Make a full PGD-entry size hole in the memory map x86/pti: Put the LDT in its own PGD if PTI is on Documentation/x86/x86_64/mm.txt | 15 +-- arch/x86/Kconfig | 8 -- arch/x86/entry/vsyscall/vsyscall_64.c | 37 +++++++- arch/x86/include/asm/mmu_context.h | 48 +++++++++- arch/x86/include/asm/pgtable.h | 6 +- arch/x86/include/asm/pgtable_64.h | 77 +++++++--------- arch/x86/include/asm/pgtable_64_types.h | 8 +- arch/x86/include/asm/processor.h | 23 +++-- arch/x86/include/asm/vsyscall.h | 1 + arch/x86/kernel/espfix_64.c | 16 ---- arch/x86/kernel/ldt.c | 155 +++++++++++++++++++++++++++++-- arch/x86/kernel/traps.c | 2 +- arch/x86/mm/dump_pagetables.c | 12 +++ arch/x86/mm/pti.c | 157 ++++++++++++++++++++++---------- init/main.c | 11 ++- 15 files changed, 426 insertions(+), 150 deletions(-) -- 2.13.6