From patchwork Thu Oct 19 08:13:05 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Yi" X-Patchwork-Id: 10016223 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 537FE603FF for ; Thu, 19 Oct 2017 09:24:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 563F2286C1 for ; Thu, 19 Oct 2017 09:24:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4B37F287EE; Thu, 19 Oct 2017 09:24:30 +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 C9F1D287B3 for ; Thu, 19 Oct 2017 09:24:29 +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 1e571w-0001vV-KH; Thu, 19 Oct 2017 09:22:20 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e55wO-0004lA-O5 for xen-devel@lists.xenproject.org; Thu, 19 Oct 2017 08:12:32 +0000 Received: from [85.158.143.35] by server-4.bemta-6.messagelabs.com id 7E/C0-31244-07E58E95; Thu, 19 Oct 2017 08:12:32 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpnkeJIrShJLcpLzFFi42I5YG4Sq5sf9yL SYPJ1WYvvWyYzOTB6HP5whSWAMYo1My8pvyKBNePXr0NsBW94K5bPT2xg3MDdxcjFISQwnVHi /NO9zF2MnBwSArwSR5bNYIWw/SU2fP7PBGILCRRJbFp3nxmiYSGjRPPBvYwgCTYBbYnmG+9ZQ GwRASWJe6smM4EUMQv0MkksuPEVLCEs4CXx794rsAYWAVWJJ1d+gsV5BRIkTs+/BbVZTuLmuU 4wm1PATuLusy1sEJttJZ59+8kygZFvASPDKkaN4tSistQiXSNjvaSizPSMktzEzBxdQwMzvdz U4uLE9NScxKRiveT83E2MwEBhAIIdjH/mBx5ilORgUhLllQ18ESnEl5SfUpmRWJwRX1Sak1p8 iFGGg0NJgjclFignWJSanlqRlpkDDFmYtAQHj5IIr2cMUJq3uCAxtzgzHSJ1ilGXo+Pm3T9MQ ix5+XmpUuK8VSAzBECKMkrz4EbA4ucSo6yUMC8j0FFCPAWpRbmZJajyrxjFORiVhHkdQabwZO aVwG16BXQEE9AR7PZgR5QkIqSkGhiz1t4vOF+zVPFNszVfzBt/U5kHRksqLv1xepj4aOXi2Vv tNsy4yXIipjjkpJ6C8vGsyVEaV5bmiaq9yT++/MtPjTtTK045u7us7BGcNX+no5QhW0OLYb/M lJKm1zu5vO8HZzDdqdtw7tnJ863VP+7YSgu11T2KeDfDoOzmy4PmM2clzjm5Z9NEJZbijERDL eai4kQAnu6rUJoCAAA= X-Env-Sender: yi.z.zhang@linux.intel.com X-Msg-Ref: server-12.tower-21.messagelabs.com!1508400749!77877425!1 X-Originating-IP: [192.55.52.93] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogMTkyLjU1LjUyLjkzID0+IDMyNDY2NQ==\n X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 5132 invoked from network); 19 Oct 2017 08:12:31 -0000 Received: from mga11.intel.com (HELO mga11.intel.com) (192.55.52.93) by server-12.tower-21.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 19 Oct 2017 08:12:31 -0000 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Oct 2017 01:12:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.43,400,1503385200"; d="scan'208";a="325053674" Received: from linux.intel.com ([10.54.29.200]) by fmsmga004.fm.intel.com with ESMTP; 19 Oct 2017 01:12:28 -0700 Received: from dazhang1-ssd.sh.intel.com (unknown [10.239.48.55]) by linux.intel.com (Postfix) with ESMTP id 8BC2B58027A; Thu, 19 Oct 2017 01:12:26 -0700 (PDT) From: Zhang Yi To: xen-devel@lists.xenproject.org Date: Thu, 19 Oct 2017 16:13:05 +0800 Message-Id: <2a15e2d69dcc0528341a487ef58f11dde18d8a2c.1508397860.git.yi.z.zhang@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: X-Mailman-Approved-At: Thu, 19 Oct 2017 09:22:18 +0000 Cc: kevin.tian@intel.com, tamas@tklengyel.com, wei.liu2@citrix.com, jun.nakajima@intel.com, rcojocaru@bitdefender.com, george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com, Zhang Yi Z , jbeulich@suse.com Subject: [Xen-devel] [PATCH RFC 09/14] xen: vmx: Introduce a Hyper call to set subpage 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: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Zhang Yi Z The Hypercall is defined as HVMOP_set_subpage And the Interface's parameters is defined as struct xen_hvm_subpage { domid_t domid; uint32_t access_map; uint64_t gfn; } The user application: xl, or some other security control daemon. will set the protection bitmap via this hyper call. Signed-off-by: Zhang Yi Z --- xen/arch/x86/hvm/hvm.c | 8 ++++++++ xen/include/public/hvm/hvm_op.h | 9 +++++++++ 2 files changed, 17 insertions(+) diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c index 0b1aba7..54cd916 100644 --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -4694,6 +4694,14 @@ long do_hvm_op(unsigned long op, XEN_GUEST_HANDLE_PARAM(void) arg) rc = do_altp2m_op(arg); break; + case HVMOP_set_subpage: { + xen_hvm_subpage_t subpage; + + if ( copy_from_guest(&subpage, arg, 1 ) ) + return -EFAULT; + break; + } + default: { gdprintk(XENLOG_DEBUG, "Bad HVM op %ld.\n", op); diff --git a/xen/include/public/hvm/hvm_op.h b/xen/include/public/hvm/hvm_op.h index 0bdafdf..0fa5b88 100644 --- a/xen/include/public/hvm/hvm_op.h +++ b/xen/include/public/hvm/hvm_op.h @@ -205,6 +205,15 @@ struct xen_hvm_altp2m_domain_state { }; typedef struct xen_hvm_altp2m_domain_state xen_hvm_altp2m_domain_state_t; DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_domain_state_t); +#define HVMOP_set_subpage 26 +struct xen_hvm_subpage { + domid_t domid; + uint32_t access_map; + uint64_t gfn; +}; +typedef struct xen_hvm_subpage xen_hvm_subpage_t; +DEFINE_XEN_GUEST_HANDLE(xen_hvm_subpage_t); + struct xen_hvm_altp2m_vcpu_enable_notify { uint32_t vcpu_id;