| Message ID | 20180921150351.20898-11-yu-cheng.yu@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show
Return-Path: <owner-linux-mm@kvack.org>
Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org
[172.30.200.125])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C836C5A4
for <patchwork-linux-mm@patchwork.kernel.org>;
Fri, 21 Sep 2018 15:09:19 +0000 (UTC)
Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1])
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B97F42E423
for <patchwork-linux-mm@patchwork.kernel.org>;
Fri, 21 Sep 2018 15:09:19 +0000 (UTC)
Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486)
id AD9002E42E; Fri, 21 Sep 2018 15:09:19 +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=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI,
RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1
Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17])
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5BC422E423
for <patchwork-linux-mm@patchwork.kernel.org>;
Fri, 21 Sep 2018 15:09:19 +0000 (UTC)
Received: by kanga.kvack.org (Postfix)
id C83ED8E000B; Fri, 21 Sep 2018 11:08:52 -0400 (EDT)
Delivered-To: linux-mm-outgoing@kvack.org
Received: by kanga.kvack.org (Postfix, from userid 40)
id A04958E0010; Fri, 21 Sep 2018 11:08:52 -0400 (EDT)
X-Original-To: int-list-linux-mm@kvack.org
X-Delivered-To: int-list-linux-mm@kvack.org
Received: by kanga.kvack.org (Postfix, from userid 63042)
id E731F8E0010; Fri, 21 Sep 2018 11:08:51 -0400 (EDT)
X-Original-To: linux-mm@kvack.org
X-Delivered-To: linux-mm@kvack.org
Received: from mail-pg1-f197.google.com (mail-pg1-f197.google.com
[209.85.215.197])
by kanga.kvack.org (Postfix) with ESMTP id 686988E0001
for <linux-mm@kvack.org>; Fri, 21 Sep 2018 11:08:51 -0400 (EDT)
Received: by mail-pg1-f197.google.com with SMTP id m4-v6so5798997pgq.19
for <linux-mm@kvack.org>; Fri, 21 Sep 2018 08:08:51 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-original-authentication-results:x-gm-message-state:from:to:cc
:subject:date:message-id:in-reply-to:references;
bh=uEehs0O2dwcwadl6JEivnjVZo1VhN/AB3p8NrI/AVMM=;
b=o0aMUKOZelUiV25Gp0g6TuqJpMi614ruDMctxgitTNkYSPlzbJfHgXlydcJRLMC6wv
4k5++o99dREft5MWnb8XnS+DrdPsyxv95w8LH21iwAO4HAwyzqvJOIhzoJQ49Cg/p+Dy
UsKJdgFEFAcux8dvamBSAqeRbligSCjrtC8xfWaWeMQnTRPTXfHACKAD2EvpIApJOges
Vy36Mi9od2XRqjxQFeoRzy/ZQobkZ9Zf74WfqYmoX0nB+26lHXoW3L3b3eS+l7G7YUF+
AzOmMxwXVI86gDlnuYOPWETaEIe3394AHUUErGstSEQS/7sqqpSn0M/RyQ7qkBo90mIF
/fLQ==
X-Original-Authentication-Results: mx.google.com;
spf=pass (google.com: domain of yu-cheng.yu@intel.com designates
134.134.136.24 as permitted sender) smtp.mailfrom=yu-cheng.yu@intel.com;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com
X-Gm-Message-State: APzg51Caj4VGRKx/U+z5DaJL6I6SAlGjiBxUbkI+2jdVzCDIDnxF0APp
dmdlgQwrKIWcPbLwI3ukgeFBES8IvnXsbVv0VjMfqr7Av5Ci7fjkmGc1WHRZ6tofpN1OCE/sb/+
BQnzwT+f19tWWOX8MGWlmmtHkbZBocZV8EliqxhO+F5Zq60kShdvfWyY700Y5yfMJAQ==
X-Received: by 2002:a62:c581:: with SMTP id
j123-v6mr31710020pfg.84.1537542531083;
Fri, 21 Sep 2018 08:08:51 -0700 (PDT)
X-Google-Smtp-Source:
ANB0VdYm7BCYUsNOP36R7PJi4bgq0Ibf7laLh4Bq23XbuQic30A60hs84KQ+ErF36N1L/u463zXV
X-Received: by 2002:a62:c581:: with SMTP id
j123-v6mr31709965pfg.84.1537542530223;
Fri, 21 Sep 2018 08:08:50 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1537542530; cv=none;
d=google.com; s=arc-20160816;
b=Hf0Lmd1eeE3uW1NId7MI590NeDL5oNEIy3WL3nfkX8jE2US/5OjSw1I3ehzj+EBLQ5
8jTaqdILayZDYaZkUQ6EpqXAYMuLnUtcerBpEfYheK8j+uckIGT8TdNw3S1GffPQjD32
yDgsvT0FigZ+uHUecvPTEmo51lXYvOC2B7lD1RUiVgf6HDzGffLAgG1DzbuPoyWVSgN0
54frOnoUY0pyzhohLLdF1jz6+WQzLaDPDeg3EgfFtXmJn9m+ya0bQx3BKO3PIwHJ6HBy
LGb8lqBUEUQcLWaRQSOiHLyHe5grEmx8crz98KlAqCa5/OIXwFIhyYFjT+9YiVXkXE7j
lAtg==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com;
s=arc-20160816;
h=references:in-reply-to:message-id:date:subject:cc:to:from;
bh=uEehs0O2dwcwadl6JEivnjVZo1VhN/AB3p8NrI/AVMM=;
b=atWoqiu+pLEG+OLO+lSnyQna08RSGfEwPVPO6j64ZNuvjqwJAQb7UD9slG6gzoznjG
iNc7ZevkLk3RYCGanwyvG0olTZo3pxw8BySXGYVwsH0GTHEmHsVO/U/1yWmxtxWM1Hz+
38K1E1gqurdaLpI8U7XhKQHqLpiaidDgect4kfLhBYCnHWJfiKD0/6w8C8ZlaxQYXDWp
RYCSyFjEPwzsrlnUezSF/KkfprPcVUgPqjyo6PNhFIuF8nykBZ5jfrtWkPXGVEEdxb/f
XFWUpCCKIl5zHkLbnIAF3RNJ2u6hHsSpavVG1ocLbl7P5IIr+VZ4tjnjrqgF2ZTbhUN5
7zmQ==
ARC-Authentication-Results: i=1; mx.google.com;
spf=pass (google.com: domain of yu-cheng.yu@intel.com designates
134.134.136.24 as permitted sender) smtp.mailfrom=yu-cheng.yu@intel.com;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com
Received: from mga09.intel.com (mga09.intel.com. [134.134.136.24])
by mx.google.com with ESMTPS id
g2-v6si27080525plq.242.2018.09.21.08.08.49
for <linux-mm@kvack.org>
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Fri, 21 Sep 2018 08:08:50 -0700 (PDT)
Received-SPF: pass (google.com: domain of yu-cheng.yu@intel.com designates
134.134.136.24 as permitted sender) client-ip=134.134.136.24;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of yu-cheng.yu@intel.com designates
134.134.136.24 as permitted sender) smtp.mailfrom=yu-cheng.yu@intel.com;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com
X-Amp-Result: SKIPPED(no attachment in message)
X-Amp-File-Uploaded: False
Received: from fmsmga007.fm.intel.com ([10.253.24.52])
by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;
21 Sep 2018 08:08:49 -0700
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.54,285,1534834800";
d="scan'208";a="71856558"
Received: from 2b52.sc.intel.com ([143.183.136.51])
by fmsmga007.fm.intel.com with ESMTP; 21 Sep 2018 08:08:48 -0700
From: Yu-cheng Yu <yu-cheng.yu@intel.com>
To: x86@kernel.org,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org,
linux-mm@kvack.org,
linux-arch@vger.kernel.org,
linux-api@vger.kernel.org,
Arnd Bergmann <arnd@arndb.de>,
Andy Lutomirski <luto@amacapital.net>,
Balbir Singh <bsingharora@gmail.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Florian Weimer <fweimer@redhat.com>,
"H.J. Lu" <hjl.tools@gmail.com>,
Jann Horn <jannh@google.com>,
Jonathan Corbet <corbet@lwn.net>,
Kees Cook <keescook@chromium.org>,
Mike Kravetz <mike.kravetz@oracle.com>,
Nadav Amit <nadav.amit@gmail.com>,
Oleg Nesterov <oleg@redhat.com>,
Pavel Machek <pavel@ucw.cz>,
Peter Zijlstra <peterz@infradead.org>,
Randy Dunlap <rdunlap@infradead.org>,
"Ravi V. Shankar" <ravi.v.shankar@intel.com>,
Vedvyas Shanbhogue <vedvyas.shanbhogue@intel.com>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: [RFC PATCH v4 10/27] drm/i915/gvt: Update _PAGE_DIRTY to
_PAGE_DIRTY_BITS
Date: Fri, 21 Sep 2018 08:03:34 -0700
Message-Id: <20180921150351.20898-11-yu-cheng.yu@intel.com>
X-Mailer: git-send-email 2.17.1
In-Reply-To: <20180921150351.20898-1-yu-cheng.yu@intel.com>
References: <20180921150351.20898-1-yu-cheng.yu@intel.com>
X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4
Sender: owner-linux-mm@kvack.org
Precedence: bulk
X-Loop: owner-majordomo@kvack.org
List-ID: <linux-mm.kvack.org>
X-Virus-Scanned: ClamAV using ClamSMTP
|
| Series |
Control Flow Enforcement: Shadow Stack
|
expand
|
On Fri, Sep 21, 2018 at 08:03:34AM -0700, Yu-cheng Yu wrote: > Update _PAGE_DIRTY to _PAGE_DIRTY_BITS in split_2MB_gtt_entry(). > > In order to support Control Flow Enforcement (CET), _PAGE_DIRTY > is now _PAGE_DIRTY_HW or _PAGE_DIRTY_SW. > > Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> > --- > drivers/gpu/drm/i915/gvt/gtt.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c > index 00aad8164dec..2d6ba1462dd8 100644 > --- a/drivers/gpu/drm/i915/gvt/gtt.c > +++ b/drivers/gpu/drm/i915/gvt/gtt.c > @@ -1170,7 +1170,7 @@ static int split_2MB_gtt_entry(struct intel_vgpu *vgpu, > } > > /* Clear dirty field. */ > - se->val64 &= ~_PAGE_DIRTY; > + se->val64 &= ~_PAGE_DIRTY_BITS; _PAGE_DIRTY_BITS is defined only in "[RFC PATCH v4 11/27] x86/mm: Introduce _PAGE_DIRTY_SW",
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 00aad8164dec..2d6ba1462dd8 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -1170,7 +1170,7 @@ static int split_2MB_gtt_entry(struct intel_vgpu *vgpu, } /* Clear dirty field. */ - se->val64 &= ~_PAGE_DIRTY; + se->val64 &= ~_PAGE_DIRTY_BITS; ops->clear_pse(se); ops->clear_ips(se);
Update _PAGE_DIRTY to _PAGE_DIRTY_BITS in split_2MB_gtt_entry(). In order to support Control Flow Enforcement (CET), _PAGE_DIRTY is now _PAGE_DIRTY_HW or _PAGE_DIRTY_SW. Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> --- drivers/gpu/drm/i915/gvt/gtt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)