From nobody Fri May 3 10:02:24 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1502864999655126.05662892417956; Tue, 15 Aug 2017 23:29:59 -0700 (PDT) Received: from localhost ([::1]:54045 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dhrq2-0005kv-H2 for importer@patchew.org; Wed, 16 Aug 2017 02:29:58 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33431) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dhrp6-0005FC-Ut for qemu-devel@nongnu.org; Wed, 16 Aug 2017 02:29:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dhrp3-0008Kf-SY for qemu-devel@nongnu.org; Wed, 16 Aug 2017 02:29:00 -0400 Received: from mga07.intel.com ([134.134.136.100]:6079) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dhrp3-0008Jv-Jn for qemu-devel@nongnu.org; Wed, 16 Aug 2017 02:28:57 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP; 15 Aug 2017 23:28:54 -0700 Received: from sky-ws.sh.intel.com (HELO localhost) ([10.239.48.141]) by fmsmga001.fm.intel.com with ESMTP; 15 Aug 2017 23:28:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,381,1498546800"; d="scan'208";a="1183241751" From: Lan Tianyu To: qemu-devel@nongnu.org Date: Tue, 15 Aug 2017 20:22:13 -0400 Message-Id: <1502842933-8323-1-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.8.3.1 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.100 Subject: [Qemu-devel] [PATCH] x86: Skip check apic_id_limit for Xen X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lan Tianyu , ehabkost@redhat.com, mst@redhat.com, xen-devel@lists.xenproject.org, anthony.perard@citrix.com, pbonzini@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Xen vIOMMU device model will be in Xen hypervisor. Skip vIOMMU check for Xen here when vcpu number is more than 255. Signed-off-by: Lan Tianyu Acked-by: Michael S. Tsirkin --- hw/i386/pc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 5943539..fc17885 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1260,7 +1260,7 @@ void pc_machine_done(Notifier *notifier, void *data) fw_cfg_modify_i16(pcms->fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus); } =20 - if (pcms->apic_id_limit > 255) { + if (pcms->apic_id_limit > 255 && !xen_enabled()) { IntelIOMMUState *iommu =3D INTEL_IOMMU_DEVICE(x86_iommu_get_defaul= t()); =20 if (!iommu || !iommu->x86_iommu.intr_supported || --=20 1.8.3.1