From patchwork Wed Jun 8 13:42:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 9164689 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4596B60467 for ; Wed, 8 Jun 2016 13:45:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3884525D91 for ; Wed, 8 Jun 2016 13:45:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2D5082824F; Wed, 8 Jun 2016 13:45:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 05E6A25D91 for ; Wed, 8 Jun 2016 13:45:35 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bAdlJ-0005aA-9n; Wed, 08 Jun 2016 13:43:13 +0000 Received: from mail6.bemta6.messagelabs.com ([85.158.143.247]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bAdlI-0005a4-0d for xen-devel@lists.xenproject.org; Wed, 08 Jun 2016 13:43:12 +0000 Received: from [85.158.143.35] by server-1.bemta-6.messagelabs.com id 78/86-30266-FE028575; Wed, 08 Jun 2016 13:43:11 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFIsWRWlGSWpSXmKPExsXS6fjDS/edQkS 4wbqdRhbft0xmcmD0OPzhCksAYxRrZl5SfkUCa8bR/4dZCuYLV6x7OJ+tgXGzQBcjJ4eQQJ7E h4bjrCA2r4CdxJ0lM8BsCQFDiX3zV7F1MXJwsAioSty4wwUSZhNQl2h7tp0VJCwiYCBx7mgSi MksoC+xbR0LSIWwQKLEyhdrWSGG20k8a14HZnMK2Esc29QG1skrICjxd4cwSJgZqGTrl7PsEx h5ZiFkZiHJQNhaEg9/3WKBsLUlli18zTwLbK+0xPJ/HBBhC4m135YzoyoBsZ0lpn56zryAkWM Vo3pxalFZapGusV5SUWZ6RkluYmaOrqGBmV5uanFxYnpqTmJSsV5yfu4mRmCYMgDBDsaOf06H GCU5mJREeRXdw8OF+JLyUyozEosz4otKc1KLDzHKcHAoSfByA8NeSLAoNT21Ii0zBxgxMGkJD h4lEV5VkDRvcUFibnFmOkTqFKOilDjvDXmghABIIqM0D64NFqWXGGWlhHkZgQ4R4ilILcrNLE GVf8UozsGoJMz7D2QKT2ZeCdz0V0CLmYAWLz8SDrK4JBEhJdXAyN/iaKqW8kFe+can7p5VOuv +aDGHrAq0/2Fj5hkzedmn61v5TM+6KSqxFPpcq51gYHAj5+WHWfXhE7oKey7cj//JWSLP/O/y vbOXJp5bcks3/WVLoVK6mvH+/COLF7K97eNz5kuN3C1nI7xm+aqzvHsuruG6JnAh8/p/edMVz 27sEJr+5cePVCWW4oxEQy3mouJEAByjdVfNAgAA X-Env-Sender: JBeulich@suse.com X-Msg-Ref: server-8.tower-21.messagelabs.com!1465393388!17925408!1 X-Originating-IP: [137.65.248.74] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.46; banners=-,-,- X-VirusChecked: Checked Received: (qmail 10274 invoked from network); 8 Jun 2016 13:43:10 -0000 Received: from prv-mh.provo.novell.com (HELO prv-mh.provo.novell.com) (137.65.248.74) by server-8.tower-21.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 8 Jun 2016 13:43:10 -0000 Received: from INET-PRV-MTA by prv-mh.provo.novell.com with Novell_GroupWise; Wed, 08 Jun 2016 07:42:59 -0600 Message-Id: <57583D0102000078000F31CA@prv-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 14.2.0 Date: Wed, 08 Jun 2016 07:42:57 -0600 From: "Jan Beulich" To: "xen-devel" References: <57583B4E02000078000F3198@prv-mh.provo.novell.com> In-Reply-To: <57583B4E02000078000F3198@prv-mh.provo.novell.com> Mime-Version: 1.0 Cc: Andrew Cooper Subject: [Xen-devel] [PATCH 1/2] x86/HVM: constify hvm_virtual_to_linear_addr()'s segment register parameter X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP ... to clarify to callers that they don't need to fear the pointed to data changing (which will be made use of subsequently). Signed-off-by: Jan Beulich x86/HVM: constify hvm_virtual_to_linear_addr()'s segment register parameter ... to clarify to callers that they don't need to fear the pointed to data changing (which will be made use of subsequently). Signed-off-by: Jan Beulich --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -2411,7 +2411,7 @@ int hvm_set_cr4(unsigned long value, boo bool_t hvm_virtual_to_linear_addr( enum x86_segment seg, - struct segment_register *reg, + const struct segment_register *reg, unsigned long offset, unsigned int bytes, enum hvm_access_type access_type, --- a/xen/include/asm-x86/hvm/hvm.h +++ b/xen/include/asm-x86/hvm/hvm.h @@ -469,7 +469,7 @@ enum hvm_access_type { }; bool_t hvm_virtual_to_linear_addr( enum x86_segment seg, - struct segment_register *reg, + const struct segment_register *reg, unsigned long offset, unsigned int bytes, enum hvm_access_type access_type, Reviewed-by: Andrew Cooper --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -2411,7 +2411,7 @@ int hvm_set_cr4(unsigned long value, boo bool_t hvm_virtual_to_linear_addr( enum x86_segment seg, - struct segment_register *reg, + const struct segment_register *reg, unsigned long offset, unsigned int bytes, enum hvm_access_type access_type, --- a/xen/include/asm-x86/hvm/hvm.h +++ b/xen/include/asm-x86/hvm/hvm.h @@ -469,7 +469,7 @@ enum hvm_access_type { }; bool_t hvm_virtual_to_linear_addr( enum x86_segment seg, - struct segment_register *reg, + const struct segment_register *reg, unsigned long offset, unsigned int bytes, enum hvm_access_type access_type,