From nobody Tue Feb 10 09:24:40 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1626298755668787.6063755594078; Wed, 14 Jul 2021 14:39:15 -0700 (PDT) Received: from localhost ([::1]:47134 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m3mb4-00037P-Ne for importer@patchew.org; Wed, 14 Jul 2021 17:39:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45070) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m3mXv-0006N2-I6 for qemu-devel@nongnu.org; Wed, 14 Jul 2021 17:35:59 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:48355) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m3mXt-00008W-Gt for qemu-devel@nongnu.org; Wed, 14 Jul 2021 17:35:59 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-593-3g1xcdA0OHK18Azftgf9oA-1; Wed, 14 Jul 2021 17:35:55 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CD8801023F46; Wed, 14 Jul 2021 21:35:53 +0000 (UTC) Received: from [172.30.41.16] (ovpn-112-106.phx2.redhat.com [10.3.112.106]) by smtp.corp.redhat.com (Postfix) with ESMTP id A37A45D6AB; Wed, 14 Jul 2021 21:35:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1626298556; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5OvCtSzp3DCcoDIRJ5JtutjOeaaHfnL+GClD4uDG3rU=; b=jA0K90+bbinj6OnhjwB7t76TUpywj8VhOHD77GAbeNFa225/PiLpL3wkgKplX2ibS7fTj/ vcAYBCjqCIQltcvBjDWvIf6CL1TB3wFzEhC3R2Md/d/7e+n9S0ZYuSdgsolj1xRqzTgel3 aTOZRVPAJettsKoXNmpR1dQIxcGaGRg= X-MC-Unique: 3g1xcdA0OHK18Azftgf9oA-1 Subject: [PULL v2 3/3] vfio/pci: Add pba_offset PCI quirk for BAIDU KUNLUN AI processor From: Alex Williamson To: qemu-devel@nongnu.org Date: Wed, 14 Jul 2021 15:35:53 -0600 Message-ID: <162629855348.830787.14165492891963140971.stgit@omen> In-Reply-To: <162629838902.830787.15967554940825048991.stgit@omen> References: <162629838902.830787.15967554940825048991.stgit@omen> User-Agent: StGit/1.0-8-g6af9-dirty MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=alex.williamson@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=alex.williamson@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.699, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alex.williamson@redhat.com, Cai Huoqing Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1626298756900100001 From: Cai Huoqing Fix pba_offset initialization value for BAIDU KUNLUN Virtual Function device. The KUNLUN hardware returns an incorrect value for the VF PBA offset, and add a quirk to instead return a hardcoded value of 0xb400. Signed-off-by: Cai Huoqing Link: https://lore.kernel.org/r/20210713093743.942-1-caihuoqing@baidu.com [aw: comment & whitespace tuning] Signed-off-by: Alex Williamson --- hw/vfio/pci.c | 8 ++++++++ include/hw/pci/pci_ids.h | 3 +++ 2 files changed, 11 insertions(+) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 971273fd458b..e1ea1d8a23b5 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -1499,6 +1499,14 @@ static void vfio_msix_early_setup(VFIOPCIDevice *vde= v, Error **errp) if (vdev->vendor_id =3D=3D PCI_VENDOR_ID_CHELSIO && (vdev->device_id & 0xff00) =3D=3D 0x5800) { msix->pba_offset =3D 0x1000; + /* + * BAIDU KUNLUN Virtual Function devices for KUNLUN AI processor + * return an incorrect value of 0x460000 for the VF PBA offset whi= le + * the BAR itself is only 0x10000. The correct value is 0xb400. + */ + } else if (vfio_pci_is(vdev, PCI_VENDOR_ID_BAIDU, + PCI_DEVICE_ID_KUNLUN_VF)) { + msix->pba_offset =3D 0xb400; } else if (vdev->msix_relo =3D=3D OFF_AUTOPCIBAR_OFF) { error_setg(errp, "hardware reports invalid configuration, " "MSIX PBA outside of specified BAR"); diff --git a/include/hw/pci/pci_ids.h b/include/hw/pci/pci_ids.h index 5c14681b82eb..11abe22d4604 100644 --- a/include/hw/pci/pci_ids.h +++ b/include/hw/pci/pci_ids.h @@ -227,6 +227,9 @@ #define PCI_VENDOR_ID_FREESCALE 0x1957 #define PCI_DEVICE_ID_MPC8533E 0x0030 =20 +#define PCI_VENDOR_ID_BAIDU 0x1d22 +#define PCI_DEVICE_ID_KUNLUN_VF 0x3685 + #define PCI_VENDOR_ID_INTEL 0x8086 #define PCI_DEVICE_ID_INTEL_82378 0x0484 #define PCI_DEVICE_ID_INTEL_82441 0x1237