From patchwork Wed Jan 23 18:28:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Knut Omang X-Patchwork-Id: 10777677 Return-Path: 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 8A17A139A for ; Wed, 23 Jan 2019 18:34:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 795412C761 for ; Wed, 23 Jan 2019 18:34:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6CBBE2C821; Wed, 23 Jan 2019 18:34:01 +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=-2.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0CA8A2C761 for ; Wed, 23 Jan 2019 18:34:01 +0000 (UTC) Received: from localhost ([127.0.0.1]:39972 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmNLc-0000CL-Dg for patchwork-qemu-devel@patchwork.kernel.org; Wed, 23 Jan 2019 13:34:00 -0500 Received: from eggs.gnu.org ([209.51.188.92]:58762) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmNHQ-0005VO-E9 for qemu-devel@nongnu.org; Wed, 23 Jan 2019 13:29:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gmNHH-0006Bv-8i for qemu-devel@nongnu.org; Wed, 23 Jan 2019 13:29:35 -0500 Received: from userp2120.oracle.com ([156.151.31.85]:37360) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gmNHB-00061Z-9l for qemu-devel@nongnu.org; Wed, 23 Jan 2019 13:29:27 -0500 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id x0NINZUx100458; Wed, 23 Jan 2019 18:29:18 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2018-07-02; bh=oFIcoKWT4qNYyunAv7hoCU+TAbRiQTRPVWWCc0/9yYA=; b=eC1BV0ryMs2YFE2hRP/OttkaoZFjZAssAOA30ZjbHKUtanXeqZaAHbf9K3o+uk8Ruujp krUsCzVoh2lE2uyLqeRhnHWco5yJ/g0DPdZjiyNd46sUxth4RB3bS7mbOdc9OE37N6NL CuO8t+zG2Ltg9PrycX/rqnQ2oSQ1paadXNkaOHA4EFnUCx2A7fyn3O1sZe8F7ahtEkUo UitpyVbuutvs10I4kPY9kQFVjWgQIlZ+7noKkn0YssHK6O+sJxaVqr+yDcyc/lxpalCk AkPYYRCiOVrqv6XLCC63S4GS/1SK6IXFr0KTajlEPK/oyIMegoFRlFX5H6D1dymKrKe+ qw== Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp2120.oracle.com with ESMTP id 2q3vhruh9m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 23 Jan 2019 18:29:18 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x0NITHmD014433 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 23 Jan 2019 18:29:17 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x0NITH0D015762; Wed, 23 Jan 2019 18:29:17 GMT Received: from abi.no.oracle.com (/10.172.144.123) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 23 Jan 2019 10:29:17 -0800 From: Knut Omang To: qemu-devel@nongnu.org Date: Wed, 23 Jan 2019 19:28:00 +0100 Message-Id: <1062e3d54121ff3e19b5a4e821ae178c5387fd9a.1548266832.git-series.knut.omang@oracle.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9145 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901230135 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 156.151.31.85 Subject: [Qemu-devel] [PATCH 2/2] gen_pcie_root_port: Add ACS (Access Control Services) capability 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: "Michael S . Tsirkin" , Stefan Hajnoczi , Elijah Shakkour , Knut Omang , Alex Williamson , Tal Attaly Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Claiming ACS support allows passthrough of an emulated device (in a nested virt.setting) with VFIO without Alex Williamson's patch for the pcie_acs_override kernel parameter. A similar need appears on Windows with Hyper-V Signed-off-by: Knut Omang --- hw/pci-bridge/gen_pcie_root_port.c | 2 ++ hw/pci-bridge/ioh3420.c | 1 - hw/pci-bridge/pcie_root_port.c | 3 +++ include/hw/pci/pcie_port.h | 1 + 4 files changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/pci-bridge/gen_pcie_root_port.c b/hw/pci-bridge/gen_pcie_root_port.c index 9766edb..b5a5ecc 100644 --- a/hw/pci-bridge/gen_pcie_root_port.c +++ b/hw/pci-bridge/gen_pcie_root_port.c @@ -20,6 +20,7 @@ OBJECT_CHECK(GenPCIERootPort, (obj), TYPE_GEN_PCIE_ROOT_PORT) #define GEN_PCIE_ROOT_PORT_AER_OFFSET 0x100 +#define GEN_PCIE_ROOT_PORT_ACS_OFFSET 0x148 #define GEN_PCIE_ROOT_PORT_MSIX_NR_VECTOR 1 typedef struct GenPCIERootPort { @@ -149,6 +150,7 @@ static void gen_rp_dev_class_init(ObjectClass *klass, void *data) rpc->interrupts_init = gen_rp_interrupts_init; rpc->interrupts_uninit = gen_rp_interrupts_uninit; rpc->aer_offset = GEN_PCIE_ROOT_PORT_AER_OFFSET; + rpc->acs_offset = GEN_PCIE_ROOT_PORT_ACS_OFFSET; } static const TypeInfo gen_rp_dev_info = { diff --git a/hw/pci-bridge/ioh3420.c b/hw/pci-bridge/ioh3420.c index 81f2de6..2064939 100644 --- a/hw/pci-bridge/ioh3420.c +++ b/hw/pci-bridge/ioh3420.c @@ -71,7 +71,6 @@ static int ioh3420_interrupts_init(PCIDevice *d, Error **errp) if (rc < 0) { assert(rc == -ENOTSUP); } - return rc; } diff --git a/hw/pci-bridge/pcie_root_port.c b/hw/pci-bridge/pcie_root_port.c index 34ad767..c33a493 100644 --- a/hw/pci-bridge/pcie_root_port.c +++ b/hw/pci-bridge/pcie_root_port.c @@ -106,6 +106,9 @@ static void rp_realize(PCIDevice *d, Error **errp) pcie_aer_root_init(d); rp_aer_vector_update(d); + if (rpc->acs_offset) { + pcie_acs_init(d, rpc->acs_offset, 0); + } return; err: diff --git a/include/hw/pci/pcie_port.h b/include/hw/pci/pcie_port.h index df242a0..09586f4 100644 --- a/include/hw/pci/pcie_port.h +++ b/include/hw/pci/pcie_port.h @@ -78,6 +78,7 @@ typedef struct PCIERootPortClass { int exp_offset; int aer_offset; int ssvid_offset; + int acs_offset; /* If nonzero, optional ACS capability offset */ int ssid; } PCIERootPortClass;