From patchwork Fri Aug 11 16:43:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Roger_Pau_Monn=C3=A9?= X-Patchwork-Id: 9896305 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 4671A603F9 for ; Fri, 11 Aug 2017 16:46:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3878028C53 for ; Fri, 11 Aug 2017 16:46:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2D45228C70; Fri, 11 Aug 2017 16:46:59 +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 6015228C6B for ; Fri, 11 Aug 2017 16:46:57 +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 1dgD22-0003Hs-Cl; Fri, 11 Aug 2017 16:43:30 +0000 Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dgD20-0003Gr-Gq for xen-devel@lists.xenproject.org; Fri, 11 Aug 2017 16:43:28 +0000 Received: from [85.158.139.211] by server-1.bemta-5.messagelabs.com id 5E/A0-01993-FAEDD895; Fri, 11 Aug 2017 16:43:27 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrJIsWRWlGSWpSXmKPExsXitHRDpO76e72 RBtvXSVp83zKZyYHR4/CHKywBjFGsmXlJ+RUJrBlf7rUxFvxgq+iecouxgfEKaxcjJ4eEgL/E 4T9vGEFsNgEdiYtzd7J1MXJwiAioSNzeawBiMguUS8y4EQ9SISwQJXG2/zALiM0ioCrRPr2RG cTmFbCUmNbWxgQxUU/i7cQXYBM5BawkmqY+BLOFgGp6Z19hh6gXlDg58wnYHGYBTYnW7b/ZIW x5ieats5kh6hUl+uc9YJvAyDcLScssJC2zkLQsYGRexahRnFpUllqka2iml1SUmZ5RkpuYmaN raGCql5taXJyYnpqTmFSsl5yfu4kRGGgMQLCDcer7uEOMkhxMSqK8CT69kUJ8SfkplRmJxRnx RaU5qcWHGDU4OAQ2r119gVGKJS8/L1VJglftLlCdYFFqempFWmYOMBZgSiU4eJREeCeApHmLC xJzizPTIVKnGI05mj5s+cLE8WrC/29MQmCTpMR5bUBKBUBKM0rz4AbBYvQSo6yUMC8j0JlCPA WpRbmZJajyrxjFORiVhHn9QKbwZOaVwO17BXQKE9ApfT5gp5QkIqSkGhijd01tq6rM9jg0Z9P anf8M1y7/aKDq+/7ApE/vHwu/vuT8fOdEndwP5wQCd1VIV3Gabi28aeJeOq274XvoVZ7aG9Ue Xb9kfctmf3zR/eLlrYBtlr3d9nPsNJ4uPL46aZFo3dtEQaWc70mrzrxxTGYtXj5Bbu7+1QzsT vMSFoXMFH+mmfi66KK8EktxRqKhFnNRcSIAuMKifswCAAA= X-Env-Sender: prvs=389849213=roger.pau@citrix.com X-Msg-Ref: server-16.tower-206.messagelabs.com!1502469805!91018453!1 X-Originating-IP: [66.165.176.89] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogNjYuMTY1LjE3Ni44OSA9PiAyMDMwMDc=\n, received_headers: No Received headers X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 12095 invoked from network); 11 Aug 2017 16:43:27 -0000 Received: from smtp.citrix.com (HELO SMTP.CITRIX.COM) (66.165.176.89) by server-16.tower-206.messagelabs.com with RC4-SHA encrypted SMTP; 11 Aug 2017 16:43:27 -0000 X-IronPort-AV: E=Sophos;i="5.41,358,1498521600"; d="scan'208";a="435210811" From: Roger Pau Monne To: Date: Fri, 11 Aug 2017 17:43:18 +0100 Message-ID: <20170811164320.92899-3-roger.pau@citrix.com> X-Mailer: git-send-email 2.11.0 (Apple Git-81) In-Reply-To: <20170811164320.92899-1-roger.pau@citrix.com> References: <20170811164320.92899-1-roger.pau@citrix.com> MIME-Version: 1.0 Cc: Andrew Cooper , Jan Beulich , Roger Pau Monne Subject: [Xen-devel] [PATCH v2 2/4] x86/dom0: prevent PVH Dom0 from mapping read-only the IO APIC area 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 This is emulated by Xen and must not be mapped into PVH Dom0 p2m. Signed-off-by: Roger Pau Monné Acked-by: Jan Beulich --- Cc: Jan Beulich Cc: Andrew Cooper --- xen/arch/x86/dom0_build.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/x86/dom0_build.c b/xen/arch/x86/dom0_build.c index 3e0910d779..804efee1a9 100644 --- a/xen/arch/x86/dom0_build.c +++ b/xen/arch/x86/dom0_build.c @@ -402,7 +402,7 @@ int __init dom0_setup_permissions(struct domain *d) for ( i = 0; i < nr_ioapics; i++ ) { mfn = paddr_to_pfn(mp_ioapics[i].mpc_apicaddr); - if ( !rangeset_contains_singleton(mmio_ro_ranges, mfn) ) + if ( dom0_pvh || !rangeset_contains_singleton(mmio_ro_ranges, mfn) ) rc |= iomem_deny_access(d, mfn, mfn); } /* MSI range. */