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 71442C433DF for ; Fri, 26 Jun 2020 17:24:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CE7920DD4 for ; Fri, 26 Jun 2020 17:24:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593192274; bh=48ef7qge/7W4hOz5TEC0gCJi8dSrC9BDoAS5jwJ9+jc=; h=From:To:Cc:Subject:Date:List-ID:From; b=Qk7WQRxooRw69ES4cz2cQGuo9wVXPNw7Q/NY35CfOG9mg5cyRNGm9Ta74+UWoopjC o8WD5vSQfPKXNahzsRM2PeBed//og4UclWK9OVDZCMYFQujqSgNl7qkwRGgp300S8h lxFw3BCVD7d0eqpB0o99tT67g8Vxl6IF698bBixg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726762AbgFZRYc (ORCPT ); Fri, 26 Jun 2020 13:24:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:40830 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725793AbgFZRYc (ORCPT ); Fri, 26 Jun 2020 13:24:32 -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 E43412065F; Fri, 26 Jun 2020 17:24:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593192272; bh=48ef7qge/7W4hOz5TEC0gCJi8dSrC9BDoAS5jwJ9+jc=; h=From:To:Cc:Subject:Date:From; b=oIEMGVUPNYAwKupcFz1JcVQnTOgdilV9g7gLr0SQFLvRW6zZOsq5Vc1Z/1HIy0rqP ZWMty4pDYpGyM0G+KdLZv8D61Rfh/WIwJbMASCv8+A5loFZXKzEQnneK5qyn/EijpR E+/328UR6+bvVMyDzvGhGhlrwkUHsQGn02HMXbVE= From: Andy Lutomirski To: x86@kernel.org Cc: Sasha Levin , linux-kernel@vger.kernel.org, Andrew Cooper , Juergen Gross , Andy Lutomirski Subject: [PATCH fsgsbase v2 0/4] x86/fsgsbase: Some fixes Date: Fri, 26 Jun 2020 10:24:26 -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 These apply to tip:x86/fsgsbase. The first two are trivial selftest fixes. The third one fixes an actual regression. The forth one fixes a crash on boot on Xen PV. Andy Lutomirski (4): selftests/x86/fsgsbase: Fix a comment in the ptrace_write_gsbase test selftests/x86/fsgsbase: Add a missing memory constraint x86/ptrace: Fix 32-bit PTRACE_SETREGS vs fsbase and gsbase x86/fsgsbase: Fix Xen PV support arch/x86/include/asm/fsgsbase.h | 2 + arch/x86/kernel/process_64.c | 24 +- arch/x86/kernel/ptrace.c | 43 ++- tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/fsgsbase.c | 6 +- .../testing/selftests/x86/fsgsbase_restore.c | 245 ++++++++++++++++++ 6 files changed, 298 insertions(+), 24 deletions(-) create mode 100644 tools/testing/selftests/x86/fsgsbase_restore.c -- 2.25.4