From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C8CBC433DF for ; Fri, 26 Jun 2020 17:21:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D237A20E65 for ; Fri, 26 Jun 2020 17:21:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593192081; bh=NJPS/mjB9XwLVSj2acLE1ljUYNuPaAGLyzKxQizvU5I=; h=From:To:Cc:Subject:Date:List-ID:From; b=naySZJ9WRs3C7W32pCMvvaidoRRG7IhrOzsi8JlhM9ElmEXtdhNPR3PswAoJ0IhrJ 3imyhyhOwb+XYiQD1j+ZzQnoc8aDaVRTI2r4u+MTNjBwkCKCNGAeX4L55q236R9x5d TEIRTQzlpIubc84W4XRicVpSYMG4nwfNmLkdY9oU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726891AbgFZRVU (ORCPT ); Fri, 26 Jun 2020 13:21:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:39708 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725957AbgFZRVT (ORCPT ); Fri, 26 Jun 2020 13:21:19 -0400 Received: from localhost (c-67-180-165-146.hsd1.ca.comcast.net [67.180.165.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4527320707; Fri, 26 Jun 2020 17:21:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593192079; bh=NJPS/mjB9XwLVSj2acLE1ljUYNuPaAGLyzKxQizvU5I=; h=From:To:Cc:Subject:Date:From; b=NV3OalI/tpTtU2Am8O8763LzJ/QY6gPgysoYNBKPIKp4+9xBDfDa1B7IPNZ5khLJj KpvHThV8u5YP6CG8bwZsztqzrX+qOAz0Gl7/77RP6S6OJY8p5ocmPcwIBs9MGgohUO S+Qg0eJRLREUaWwFR6Q+xsqPLYTtcuJbGwtg9iQA= From: Andy Lutomirski To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Andrew Cooper , Juergen Gross , Andy Lutomirski Subject: [PATCH 0/6] x86/entry: Fixes Date: Fri, 26 Jun 2020 10:21:10 -0700 Message-Id: X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Half of this is selftests. The rest adds some confidence-improving assertions and fixes a crash when running on Xen PV. Andy Lutomirski (6): x86/entry: Assert that syscalls are on the right stack x86/entry: Move SYSENTER's regs->sp and regs->flags fixups into C x86/entry/64/compat: Fix Xen PV SYSENTER frame setup selftests/x86/syscall_nt: Add more flag combinations selftests/x86/syscall_nt: Clear weird flags after each test selftests/x86: Consolidate and fix get/set_eflags() helpers arch/x86/entry/common.c | 30 ++++++++++++-- arch/x86/entry/entry_32.S | 5 +-- arch/x86/entry/entry_64_compat.S | 12 +++--- arch/x86/xen/xen-asm_64.S | 20 +++++++-- tools/testing/selftests/x86/Makefile | 4 +- tools/testing/selftests/x86/helpers.h | 41 +++++++++++++++++++ .../selftests/x86/single_step_syscall.c | 17 +------- .../testing/selftests/x86/syscall_arg_fault.c | 21 +--------- tools/testing/selftests/x86/syscall_nt.c | 36 ++++++++-------- tools/testing/selftests/x86/test_vsyscall.c | 15 +------ tools/testing/selftests/x86/unwind_vdso.c | 23 +---------- 11 files changed, 118 insertions(+), 106 deletions(-) create mode 100644 tools/testing/selftests/x86/helpers.h -- 2.25.4